refactor: inherit default curl parser values (#2169)

packages/hoppscotch-app/helpers/curl/__tests__/curlparser.spec.js

@@ -17,7 +17,7 @@ const samples = [
       method: "GET",
       name: "Untitled request",
       endpoint: "https://echo.hoppscotch.io/",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: "application/x-www-form-urlencoded",
         body: rawKeyValueEntriesToString([
@@ -148,7 +148,7 @@ const samples = [
       method: "GET",
       name: "Untitled request",
       endpoint: "https://google.com/",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: null,
         body: null,
@@ -165,7 +165,7 @@ const samples = [
       method: "POST",
       name: "Untitled request",
       endpoint: "http://localhost:1111/hello/world/?buzz",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: "application/json",
         body: `{\n  "foo": "bar"\n}`,
@@ -188,7 +188,7 @@ const samples = [
       method: "GET",
       name: "Untitled request",
       endpoint: "https://example.com/",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: null,
         body: null,
@@ -216,7 +216,7 @@ const samples = [
       method: "POST",
       name: "Untitled request",
       endpoint: "https://bing.com/",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: "multipart/form-data",
         body: [
@@ -292,6 +292,27 @@ const samples = [
       testScript: "",
     }),
   },
+  {
+    command:
+      "curl -X GET localhost:9900 --header 'Authorization: Basic 77898dXNlcjpwYXNz'",
+    response: makeRESTRequest({
+      method: "GET",
+      name: "Untitled request",
+      endpoint: "http://localhost:9900/",
+      auth: {
+        authType: "none",
+        authActive: true,
+      },
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [],
+      headers: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
   {
     command:
       "curl -X GET localhost --header 'Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c'",
@@ -315,30 +336,6 @@ const samples = [
       testScript: "",
     }),
   },
-  {
-    command:
-      "curl -X GET localhost --header 'Authorization: Apikey dXNlcjpwYXNz'",
-    response: makeRESTRequest({
-      method: "GET",
-      name: "Untitled request",
-      endpoint: "http://localhost/",
-      auth: {
-        authActive: true,
-        authType: "api-key",
-        key: "apikey",
-        value: "dXNlcjpwYXNz",
-        addTo: "headers",
-      },
-      body: {
-        contentType: null,
-        body: null,
-      },
-      params: [],
-      headers: [],
-      preRequestScript: "",
-      testScript: "",
-    }),
-  },
   {
     command: `curl --get -I -d "tool=curl" -d "platform=hoppscotch" -d"io" https://hoppscotch.io`,
     response: makeRESTRequest({
@@ -346,7 +343,7 @@ const samples = [
       name: "Untitled request",
       endpoint: "https://hoppscotch.io/?io",
       auth: {
-        authActive: false,
+        authActive: true,
         authType: "none",
       },
       body: {
@@ -381,7 +378,7 @@ const samples = [
       name: "Untitled request",
       endpoint: "https://someshadywebsite.com/questionable/path/?so",
       auth: {
-        authActive: false,
+        authActive: true,
         authType: "none",
       },
       body: {
@@ -442,7 +439,7 @@ const samples = [
       name: "Untitled request",
       endpoint: "http://localhost/",
       auth: {
-        authActive: false,
+        authActive: true,
         authType: "none",
       },
       body: {
@@ -475,7 +472,7 @@ const samples = [
       method: "GET",
       name: "Untitled request",
       endpoint: "https://hoppscotch.io/",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: null,
         body: null,
@@ -530,7 +527,7 @@ const samples = [
       method: "GET",
       name: "Untitled request",
       endpoint: "https://echo.hoppscotch.io/",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       body: {
         contentType: "application/x-www-form-urlencoded",
         body: rawKeyValueEntriesToString([
@@ -575,7 +572,7 @@ const samples = [
       name: "Untitled request",
       endpoint: "https://echo.hoppscotch.io/",
       method: "POST",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       headers: [
         {
           active: true,
@@ -617,7 +614,7 @@ const samples = [
       name: "Untitled request",
       endpoint: "https://muxueqz.top/skybook.html",
       method: "GET",
-      auth: { authType: "none", authActive: false },
+      auth: { authType: "none", authActive: true },
       headers: [],
       body: { contentType: null, body: null },
       params: [],
@@ -625,6 +622,152 @@ const samples = [
       testScript: "",
     }),
   },
+  {
+    command: "curl -F abcd=efghi",
+    response: makeRESTRequest({
+      name: "Untitled request",
+      endpoint: "https://echo.hoppscotch.io/",
+      method: "POST",
+      auth: { authType: "none", authActive: true },
+      headers: [],
+      body: {
+        contentType: "multipart/form-data",
+        body: [
+          {
+            active: true,
+            isFile: false,
+            key: "abcd",
+            value: "efghi",
+          },
+        ],
+      },
+      params: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
+  {
+    command: "curl 127.0.0.1 -X custommethod",
+    response: makeRESTRequest({
+      name: "Untitled request",
+      endpoint: "http://127.0.0.1/",
+      method: "CUSTOMMETHOD",
+      auth: { authType: "none", authActive: true },
+      headers: [],
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
+  {
+    command: "curl echo.hoppscotch.io -A pinephone",
+    response: makeRESTRequest({
+      name: "Untitled request",
+      endpoint: "https://echo.hoppscotch.io/",
+      method: "GET",
+      auth: { authType: "none", authActive: true },
+      headers: [
+        {
+          active: true,
+          key: "User-Agent",
+          value: "pinephone",
+        },
+      ],
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
+  {
+    command: "curl echo.hoppscotch.io -G",
+    response: makeRESTRequest({
+      name: "Untitled request",
+      endpoint: "https://echo.hoppscotch.io/",
+      method: "GET",
+      auth: { authType: "none", authActive: true },
+      headers: [],
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
+  {
+    command: `curl --get -I -d "tool=hopp" https://example.org`,
+    response: makeRESTRequest({
+      name: "Untitled request",
+      endpoint: "https://example.org/",
+      method: "HEAD",
+      auth: { authType: "none", authActive: true },
+      headers: [],
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [
+        {
+          active: true,
+          key: "tool",
+          value: "hopp",
+        },
+      ],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
+  {
+    command: `curl google.com -u userx`,
+    response: makeRESTRequest({
+      method: "GET",
+      name: "Untitled request",
+      endpoint: "https://google.com/",
+      auth: {
+        authType: "basic",
+        authActive: true,
+        username: "userx",
+        password: "",
+      },
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [],
+      headers: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
+  {
+    command: `curl google.com -H "Authorization"`,
+    response: makeRESTRequest({
+      method: "GET",
+      name: "Untitled request",
+      endpoint: "https://google.com/",
+      auth: {
+        authType: "none",
+        authActive: true,
+      },
+      body: {
+        contentType: null,
+        body: null,
+      },
+      params: [],
+      headers: [],
+      preRequestScript: "",
+      testScript: "",
+    }),
+  },
 ]
 
 describe("parseCurlToHoppRESTReq", () => {

packages/hoppscotch-app/helpers/curl/__tests__/detectContentType.spec.js

@@ -1,10 +1,8 @@
-import { detectContentType } from "../contentParser"
+import { detectContentType } from "../sub_helpers/contentParser"
 
 describe("detect content type", () => {
-  test("should return text/plain for blank/null/undefined input", () => {
-    expect(detectContentType("")).toBe("text/plain")
-    expect(detectContentType(null)).toBe("text/plain")
-    expect(detectContentType(undefined)).toBe("text/plain")
+  test("should return null for blank input", () => {
+    expect(detectContentType("")).toBe(null)
   })
 
   describe("application/json", () => {

packages/hoppscotch-app/helpers/curl/contentParser.ts

@@ -1,282 +0,0 @@
-import { HoppRESTReqBody } from "@hoppscotch/data"
-import * as S from "fp-ts/string"
-import * as RA from "fp-ts/ReadonlyArray"
-import * as O from "fp-ts/Option"
-import { pipe } from "fp-ts/function"
-import { tupleToRecord } from "~/helpers/functional/record"
-import { safeParseJSON } from "~/helpers/functional/json"
-
-/**
- * Detects the content type of the input string
- * @param rawData String for which content type is to be detected
- * @returns Content type of the data
- */
-export function detectContentType(
-  rawData: string
-): HoppRESTReqBody["contentType"] {
-  if (!rawData) return "text/plain"
-
-  let contentType: HoppRESTReqBody["contentType"]
-
-  if (O.isSome(safeParseJSON(rawData))) {
-    contentType = "application/json"
-  } else if (/<\/?[a-zA-Z][\s\S]*>/i.test(rawData)) {
-    if (O.isSome(prettifyXml(rawData))) {
-      contentType = "application/xml"
-    } else {
-      // everything is HTML
-      contentType = "text/html"
-    }
-  } else {
-    contentType = pipe(
-      rawData.match(/^-{2,}[A-Za-z0-9]+\\r\\n/),
-      O.fromNullable,
-      O.filter((boundaryMatch) => boundaryMatch.length > 0),
-      O.match(
-        () =>
-          pipe(
-            rawData,
-            O.fromPredicate((rd) => /([^&=]+)=([^&=]*)/.test(rd)),
-            O.match(
-              () => "text/plain",
-              () => "application/x-www-form-urlencoded"
-            )
-          ),
-        () => "multipart/form-data"
-      )
-    )
-  }
-
-  return contentType
-}
-
-/**
- * Prettifies XML string
- * @param sourceXml The string to format
- * @returns Indented XML string (uses spaces)
- */
-const prettifyXml = (sourceXml: string) =>
-  pipe(
-    O.tryCatch(() => {
-      const xmlDoc = new DOMParser().parseFromString(
-        sourceXml,
-        "application/xml"
-      )
-
-      if (xmlDoc.querySelector("parsererror")) {
-        throw new Error("Unstructured Body")
-      }
-
-      const xsltDoc = new DOMParser().parseFromString(
-        [
-          // describes how we want to modify the XML - indent everything
-          '<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform">',
-          '  <xsl:strip-space elements="*"/>',
-          '  <xsl:template match="para[content-style][not(text())]">', // change to just text() to strip space in text nodes
-          '    <xsl:value-of select="normalize-space(.)"/>',
-          "  </xsl:template>",
-          '  <xsl:template match="node()|@*">',
-          '    <xsl:copy><xsl:apply-templates select="node()|@*"/></xsl:copy>',
-          "  </xsl:template>",
-          '  <xsl:output indent="yes"/>',
-          "</xsl:stylesheet>",
-        ].join("\n"),
-        "application/xml"
-      )
-
-      const xsltProcessor = new XSLTProcessor()
-      xsltProcessor.importStylesheet(xsltDoc)
-      const resultDoc = xsltProcessor.transformToDocument(xmlDoc)
-      const resultXml = new XMLSerializer().serializeToString(resultDoc)
-
-      return resultXml
-    })
-  )
-
-/**
- * Prettifies HTML string
- * @param htmlString The string to format
- * @returns Indented HTML string (uses spaces)
- */
-const formatHTML = (htmlString: string) => {
-  const tab = "  "
-  let result = ""
-  let indent = ""
-  const emptyTags = [
-    "area",
-    "base",
-    "br",
-    "col",
-    "embed",
-    "hr",
-    "img",
-    "input",
-    "link",
-    "meta",
-    "param",
-    "source",
-    "track",
-    "wbr",
-  ]
-
-  const spl = htmlString.split(/>\s*</)
-  spl.forEach((element) => {
-    if (element.match(/^\/\w/)) {
-      indent = indent.substring(tab.length)
-    }
-
-    result += indent + "<" + element + ">\n"
-
-    if (
-      element.match(/^<?\w[^>]*[^/]$/) &&
-      !emptyTags.includes(element.match(/^([a-z]*)/i)?.at(1) || "")
-    ) {
-      indent += tab
-    }
-  })
-
-  return result.substring(1, result.length - 2)
-}
-
-/**
- * Parses provided string according to the content type
- * @param rawData Data to be parsed
- * @param contentType Content type of the data
- * @param boundary Optional parameter required for multipart/form-data content type
- * @returns Option of parsed body as string or Record object for multipart/form-data
- */
-export function parseBody(
-  rawData: string,
-  contentType: HoppRESTReqBody["contentType"],
-  rawContentType?: string
-): O.Option<string | Record<string, string>> {
-  switch (contentType) {
-    case "application/hal+json":
-    case "application/ld+json":
-    case "application/vnd.api+json":
-    case "application/json": {
-      return pipe(
-        rawData,
-        safeParseJSON,
-        O.map((parsedJSON) => JSON.stringify(parsedJSON, null, 2)),
-        O.getOrElse(() => "{}"),
-        O.fromNullable
-      )
-    }
-
-    case "application/x-www-form-urlencoded": {
-      return pipe(
-        rawData,
-        O.fromNullable,
-        O.map(decodeURIComponent),
-        O.chain((rd) =>
-          pipe(rd.match(/(([^&=]+)=?([^&=]*))/g), O.fromNullable)
-        ),
-        O.map((pairs) => pairs.map((p) => p.replace("=", ": ")).join("\n"))
-      )
-    }
-
-    case "multipart/form-data": {
-      /**
-       * O.bind binds "boundary"
-       * If rawContentType is present, try to extract boundary from it
-       * If rawContentTpe is not present, try to regex match the boundary from rawData
-       * In case both the above attempts fail, O.map is not executed and the pipe is
-       * short-circuited. O.none is returned.
-       *
-       * In the event the boundary is ascertained, process rawData to get key-value
-       * pairs and convert them to a tuple array. If the array is not empty,
-       * convert it to Record<string, string> type and return O.some of it.
-       */
-      return pipe(
-        O.Do,
-
-        O.bind("boundary", () =>
-          pipe(
-            rawContentType,
-            O.fromNullable,
-            O.match(
-              () =>
-                pipe(
-                  rawData.match(/-{2,}[A-Za-z0-9]+\\r\\n/g),
-                  O.fromNullable,
-                  O.filter((boundaryMatch) => boundaryMatch.length > 1),
-                  O.map((matches) => matches[0])
-                ),
-              (rct) =>
-                pipe(
-                  rct.match(/boundary=(.+)/),
-                  O.fromNullable,
-                  O.filter(
-                    (boundaryContentMatch) => boundaryContentMatch.length > 1
-                  ),
-                  O.filter((matches) =>
-                    rawData
-                      .replaceAll("\\r\\n", "")
-                      .endsWith("--" + matches[1] + "--")
-                  ),
-                  O.map((matches) => "--" + matches[1])
-                )
-            )
-          )
-        ),
-
-        O.map(({ boundary }) =>
-          pipe(
-            rawData,
-            S.split(boundary),
-            RA.filter((p) => p !== "" && p.includes("name")),
-            RA.map((p) =>
-              pipe(
-                p.replaceAll(/\\r\\n+/g, "\\r\\n"),
-                S.split("\\r\\n"),
-                RA.filter((q) => q !== "")
-              )
-            ),
-            RA.filterMap((p) =>
-              pipe(
-                p[0].match(/ name="(\w+)"/),
-                O.fromNullable,
-                O.filter((nameMatch) => nameMatch.length > 0),
-                O.map((nameMatch) => {
-                  const name = nameMatch[0]
-                    .replaceAll(/"/g, "")
-                    .split("=", 2)[1]
-                  return [name, p[0].includes("filename") ? "" : p[1]] as [
-                    string,
-                    string
-                  ]
-                })
-              )
-            ),
-            RA.toArray
-          )
-        ),
-
-        O.filter((arr) => arr.length > 0),
-        O.map(tupleToRecord)
-      )
-    }
-
-    case "text/html": {
-      return pipe(rawData, O.fromNullable, O.map(formatHTML))
-    }
-
-    case "application/xml": {
-      return pipe(
-        rawData,
-        O.fromNullable,
-        O.chain(prettifyXml),
-        O.match(
-          () => rawData,
-          (res) => res
-        ),
-        O.fromNullable
-      )
-    }
-
-    case "text/plain":
-    default:
-      return O.some(rawData)
-  }
-}

packages/hoppscotch-app/helpers/curl/curlparser.ts

@@ -1,675 +1,178 @@
-import * as cookie from "cookie"
 import parser from "yargs-parser"
-import * as RA from "fp-ts/ReadonlyArray"
 import * as O from "fp-ts/Option"
-import { pipe } from "fp-ts/function"
+import * as A from "fp-ts/Array"
+import { pipe, flow } from "fp-ts/function"
 import {
-  HoppRESTAuth,
   FormDataKeyValue,
   HoppRESTReqBody,
   makeRESTRequest,
 } from "@hoppscotch/data"
-import { detectContentType, parseBody } from "./contentParser"
-import { CurlParserRequest } from "."
-import { tupleToRecord } from "~/helpers/functional/record"
-import { stringArrayJoin } from "~/helpers/functional/array"
+import { getAuthObject } from "./sub_helpers/auth"
+import { getHeaders, recordToHoppHeaders } from "./sub_helpers/headers"
+// import { getCookies } from "./sub_helpers/cookies"
+import { getQueries } from "./sub_helpers/queries"
+import { getMethod } from "./sub_helpers/method"
+import { concatParams, parseURL } from "./sub_helpers/url"
+import { preProcessCurlCommand } from "./sub_helpers/preproc"
+import { getBody, getFArgumentMultipartData } from "./sub_helpers/body"
+import { getDefaultRESTRequest } from "~/newstore/RESTSession"
+import {
+  objHasProperty,
+  objHasArrayProperty,
+} from "~/helpers/functional/object"
+
+const defaultRESTReq = getDefaultRESTRequest()
 
 export const parseCurlCommand = (curlCommand: string) => {
-  const isDataBinary = curlCommand.includes(" --data-binary")
+  // const isDataBinary = curlCommand.includes(" --data-binary")
+  // const compressed = !!parsedArguments.compressed
 
   curlCommand = preProcessCurlCommand(curlCommand)
   const parsedArguments = parser(curlCommand)
 
-  const headers = getHeaders(parsedArguments)
-  const method = getMethod(parsedArguments)
-  const urlObject = parseURL(parsedArguments)
-
-  let rawContentType: string = ""
-  let rawData: string | string[] = parsedArguments?.d || ""
-  let body: string | null = ""
-  let contentType: HoppRESTReqBody["contentType"] = null
-  let hasBodyBeenParsed = false
-
-  if (headers && rawContentType === "")
-    rawContentType = headers["Content-Type"] || headers["content-type"] || ""
-
-  let { queries, danglingParams } = getQueries(
-    urlObject?.searchParams.entries()
+  const headerObject = getHeaders(parsedArguments)
+  const { headers } = headerObject
+  let { rawContentType } = headerObject
+  const hoppHeaders = pipe(
+    headers,
+    O.fromPredicate(() => Object.keys(headers).length > 0),
+    O.map(recordToHoppHeaders),
+    O.getOrElse(() => defaultRESTReq.headers)
   )
 
-  if (Array.isArray(rawData)) {
-    const pairs = getParamPairs(rawData)
+  const method = getMethod(parsedArguments)
+  // const cookies = getCookies(parsedArguments)
+  const urlObject = parseURL(parsedArguments)
+  const auth = getAuthObject(parsedArguments, headers, urlObject)
 
-    if (parsedArguments.G) {
-      const newQueries = getQueries(pairs as [string, string][])
-      queries = [...queries, ...newQueries.queries]
-      danglingParams = [...danglingParams, ...newQueries.danglingParams]
-      hasBodyBeenParsed = true
-    } else if (rawContentType.includes("application/x-www-form-urlencoded")) {
-      body = pairs?.map((p) => p.join(": ")).join("\n") || null
-      contentType = "application/x-www-form-urlencoded"
-      hasBodyBeenParsed = true
-    } else {
-      rawData = rawData.join("")
-    }
+  let rawData: string | string[] = pipe(
+    parsedArguments,
+    O.fromPredicate(objHasArrayProperty("d", "string")),
+    O.map((args) => args.d),
+    O.altW(() =>
+      pipe(
+        parsedArguments,
+        O.fromPredicate(objHasProperty("d", "string")),
+        O.map((args) => args.d)
+      )
+    ),
+    O.getOrElseW(() => "")
+  )
+
+  let body: HoppRESTReqBody["body"] = ""
+  let contentType: HoppRESTReqBody["contentType"] =
+    defaultRESTReq.body.contentType
+  let hasBodyBeenParsed = false
+
+  let { queries, danglingParams } = getQueries(
+    Array.from(urlObject.searchParams.entries())
+  )
+
+  const stringToPair = flow(
+    decodeURIComponent,
+    (pair) => <[string, string]>pair.split("=", 2)
+  )
+  const pairs = pipe(
+    rawData,
+    O.fromPredicate(Array.isArray),
+    O.map(A.map(stringToPair)),
+    O.alt(() =>
+      pipe(
+        rawData,
+        O.fromPredicate((s) => s.length > 0),
+        O.map(() => [stringToPair(rawData as string)])
+      )
+    ),
+    O.getOrElseW(() => undefined)
+  )
+
+  if (objHasProperty("G", "boolean")(parsedArguments) && !!pairs) {
+    const newQueries = getQueries(pairs)
+    queries = [...queries, ...newQueries.queries]
+    danglingParams = [...danglingParams, ...newQueries.danglingParams]
+    hasBodyBeenParsed = true
+  } else if (
+    rawContentType.includes("application/x-www-form-urlencoded") &&
+    !!pairs
+  ) {
+    body = pairs.map((p) => p.join(": ")).join("\n") || null
+    contentType = "application/x-www-form-urlencoded"
+    hasBodyBeenParsed = true
   }
 
-  const urlString = concatParams(urlObject, danglingParams) || ""
+  const urlString = concatParams(urlObject, danglingParams)
 
   let multipartUploads: Record<string, string> = pipe(
-    parsedArguments,
-    O.fromNullable,
+    O.of(parsedArguments),
     O.chain(getFArgumentMultipartData),
     O.match(
       () => ({}),
       (args) => {
+        hasBodyBeenParsed = true
         rawContentType = "multipart/form-data"
         return args
       }
     )
   )
 
-  const auth = getAuthObject(parsedArguments, headers, urlObject)
-
-  let cookies: Record<string, string> | undefined
-
-  const cookieString = parsedArguments.b || parsedArguments.cookie || ""
-  if (cookieString) {
-    const cookieParseOptions = {
-      decode: (s: any) => s,
+  if (!hasBodyBeenParsed) {
+    if (typeof rawData !== "string") {
+      rawData = rawData.join("")
     }
-    // separate out cookie headers into separate data structure
-    // note: cookie is case insensitive
-    cookies = cookie.parse(
-      cookieString.replace(/^Cookie: /gi, ""),
-      cookieParseOptions
-    )
-  }
+    const bodyObject = getBody(rawData, rawContentType, contentType)
 
-  if (!hasBodyBeenParsed && typeof rawData === "string") {
-    const tempBody = pipe(
-      O.Do,
+    if (O.isSome(bodyObject)) {
+      const bodyObjectValue = bodyObject.value
 
-      O.bind("rct", () =>
-        pipe(
-          rawContentType,
-          O.fromNullable,
-          O.filter(() => !!headers && rawContentType !== "")
-        )
-      ),
-
-      O.bind("cType", ({ rct }) =>
-        pipe(
-          rct,
-          O.fromNullable,
-          O.map((RCT) => RCT.toLowerCase()),
-          O.map((RCT) => RCT.split(";")[0]),
-          O.map((RCT) => RCT as HoppRESTReqBody["contentType"])
-        )
-      ),
-
-      O.bind("rData", () =>
-        pipe(
-          rawData as string,
-          O.fromNullable,
-          O.filter(() => !!rawData && rawData.length > 0)
-        )
-      ),
-
-      O.bind("ctBody", ({ rct, cType, rData }) =>
-        pipe(rData, getBodyFromContentType(rct, cType))
-      )
-    )
-
-    if (O.isSome(tempBody)) {
-      const { cType, ctBody } = tempBody.value
-      contentType = cType
-      if (typeof ctBody === "string") body = ctBody
-      else multipartUploads = ctBody
-    } else if (
-      !(
-        rawContentType &&
-        rawContentType.startsWith("multipart/form-data") &&
-        rawContentType.includes("boundary")
-      )
-    ) {
-      const newTempBody = pipe(
-        rawData,
-        O.fromNullable,
-        O.filter(() => !!rawData && rawData.length > 0),
-        O.chain(getBodyWithoutContentType)
-      )
-
-      if (O.isSome(newTempBody)) {
-        const { cType, proData } = newTempBody.value
-        contentType = cType
-        if (typeof proData === "string") body = proData
-        else multipartUploads = proData
+      if (bodyObjectValue.type === "FORMDATA") {
+        multipartUploads = bodyObjectValue.body
+      } else {
+        body = bodyObjectValue.body.body
+        contentType = bodyObjectValue.body
+          .contentType as HoppRESTReqBody["contentType"]
       }
-    } else {
-      body = null
-      contentType = null
     }
   }
 
-  const compressed = !!parsedArguments.compressed
-  const hoppHeaders = recordToHoppHeaders(headers)
-
-  const request: CurlParserRequest = {
-    urlString,
-    urlObject,
-    compressed,
-    queries,
-    hoppHeaders,
-    method,
-    contentType,
+  const finalBody: HoppRESTReqBody = pipe(
     body,
-    cookies,
-    cookieString: cookieString?.replace(/Cookie: /i, ""),
-    multipartUploads,
-    isDataBinary,
-    auth,
-  }
-
-  return request
-}
-
-// ############################################ //
-// ##            HELPER FUNCTIONS            ## //
-// ############################################ //
-
-const replaceables: { [key: string]: string } = {
-  "--request": "-X",
-  "--header": "-H",
-  "--url": "",
-  "--form": "-F",
-  "--data-raw": "--data",
-  "--data": "-d",
-  "--data-ascii": "-d",
-  "--data-binary": "-d",
-  "--user": "-u",
-  "--get": "-G",
-}
-
-/**
- * Sanitizes curl string
- * @param curlCommand Raw curl command string
- * @returns Processed curl command string
- */
-function preProcessCurlCommand(curlCommand: string) {
-  // remove '\' and newlines
-  curlCommand = curlCommand.replace(/ ?\\ ?$/gm, " ")
-  curlCommand = curlCommand.replace(/\n/g, "")
-
-  // remove all $ symbols from start of argument values
-  curlCommand = curlCommand.replaceAll("$'", "'")
-  curlCommand = curlCommand.replaceAll('$"', '"')
-
-  // replace string for insomnia
-  for (const r in replaceables) {
-    if (r.includes("data") || r.includes("form") || r.includes("header")) {
-      curlCommand = curlCommand.replaceAll(
-        RegExp(`[ \t]${r}(["' ])`, "g"),
-        ` ${replaceables[r]}$1`
-      )
-    } else {
-      curlCommand = curlCommand.replace(
-        RegExp(`[ \t]${r}(["' ])`),
-        ` ${replaceables[r]}$1`
-      )
-    }
-  }
-
-  // yargs parses -XPOST as separate arguments. just prescreen for it.
-  curlCommand = curlCommand.replace(
-    / -X(GET|POST|PUT|PATCH|DELETE|HEAD|CONNECT|OPTIONS|TRACE|CUSTOM)/,
-    " -X $1"
-  )
-  curlCommand = curlCommand.trim()
-
-  return curlCommand
-}
-
-/** Parses body based on the content type
- * @param rct Raw content type
- * @param cType Sanitized content type
- * @returns Option of parsed body
- */
-function getBodyFromContentType(
-  rct: string,
-  cType: HoppRESTReqBody["contentType"]
-) {
-  return (rData: string) => {
-    if (cType === "multipart/form-data")
-      // put body to multipartUploads in post processing
-      return pipe(
-        parseBody(rData, cType, rct),
-        O.filter((parsedBody) => typeof parsedBody !== "string")
-      )
-    else
-      return pipe(
-        parseBody(rData, cType),
-        O.filter(
-          (parsedBody) =>
-            typeof parsedBody === "string" && parsedBody.length > 0
-        )
-      )
-  }
-}
-
-/**
- * Detects and parses body without the help of content type
- * @param rawData Raw body string
- * @returns Option of raw data, detected content type and parsed data
- */
-function getBodyWithoutContentType(rawData: string) {
-  return pipe(
-    O.Do,
-
-    O.bind("rData", () =>
-      pipe(
-        rawData,
-        O.fromNullable,
-        O.filter((rd) => rd.length > 0)
-      )
-    ),
-
-    O.bind("cType", ({ rData }) =>
-      pipe(rData, detectContentType, O.fromNullable)
-    ),
-
-    O.bind("proData", ({ cType, rData }) => parseBody(rData, cType))
-  )
-}
-
-/**
- * Processes URL string and returns the URL object
- * @param parsedArguments Parsed Arguments object
- * @returns URL object
- */
-function parseURL(parsedArguments: parser.Arguments) {
-  return pipe(
-    parsedArguments?._[1],
     O.fromNullable,
-    O.map((u) => u.toString().replace(/["']/g, "")),
-    O.map((u) => u.trim()),
-    O.chain((u) =>
+    O.filter((b) => b.length > 0),
+    O.map((b) => <HoppRESTReqBody>{ body: b, contentType }),
+    O.alt(() =>
       pipe(
-        /^[^:\s]+(?=:\/\/)/.exec(u),
-        O.fromNullable,
-        O.map((p) => p[2]),
-        O.match(
-          // if protocol is not found
-          () =>
-            pipe(
-              // get the base URL
-              /^([^\s:@]+:[^\s:@]+@)?([^:/\s]+)([:]*)/.exec(u),
-              O.fromNullable,
-              O.map((burl) => burl[2]),
-              O.map((burl) =>
-                burl === "localhost" || burl === "127.0.0.1"
-                  ? "http://" + u
-                  : "https://" + u
-              )
+        multipartUploads,
+        O.of,
+        O.map((m) => Object.entries(m)),
+        O.filter((m) => m.length > 0),
+        O.map(
+          flow(
+            A.map(
+              ([key, value]) =>
+                <FormDataKeyValue>{
+                  active: true,
+                  isFile: false,
+                  key,
+                  value,
+                }
             ),
-          (_) => O.some(u)
-        )
-      )
-    ),
-    O.map((u) => new URL(u)),
-    O.getOrElse(() => {
-      // no url found
-      for (const argName in parsedArguments) {
-        if (
-          typeof parsedArguments[argName] === "string" &&
-          ["http", "www."].includes(parsedArguments[argName])
-        )
-          return pipe(
-            parsedArguments[argName],
-            O.fromNullable,
-            O.map((u) => new URL(u)),
-            O.match(
-              () => undefined,
-              (u) => u
-            )
+            (b) =>
+              <HoppRESTReqBody>{ body: b, contentType: "multipart/form-data" }
           )
-      }
-    })
-  )
-}
-
-/**
- * Converts queries to HoppRESTParam format and separates dangling ones
- * @param queries Array or IterableIterator of key value pairs of queries
- * @returns Queries formatted compatible to HoppRESTParam and list of dangling params
- */
-function getQueries(
-  searchParams:
-    | [string, string][]
-    | IterableIterator<[string, string]>
-    | undefined
-) {
-  const danglingParams: string[] = []
-  const queries = pipe(
-    searchParams,
-    O.fromNullable,
-    O.map((iter) => {
-      const params = []
-
-      for (const q of iter) {
-        if (!q[1]) {
-          danglingParams.push(q[0])
-          continue
-        }
-        params.push({
-          key: q[0],
-          value: q[1],
-          active: true,
-        })
-      }
-      return params
-    }),
-
-    O.getOrElseW(() => [])
-  )
-
-  return {
-    queries,
-    danglingParams,
-  }
-}
-
-/**
- * Joins dangling params to origin
- * @param origin origin value from the URL Object
- * @param params params without values
- * @returns origin string concatenated with dangling paramas
- */
-function concatParams(urlObject: URL | undefined, params: string[]) {
-  return pipe(
-    O.Do,
-
-    O.bind("originString", () =>
-      pipe(
-        urlObject?.origin,
-        O.fromNullable,
-        O.filter((h) => h !== "")
-      )
-    ),
-
-    O.map(({ originString }) =>
-      pipe(
-        params,
-        O.fromNullable,
-        O.filter((dp) => dp.length > 0),
-        O.map(stringArrayJoin("&")),
-        O.map((h) => originString + (urlObject?.pathname || "") + "?" + h),
-        O.getOrElse(() => originString + (urlObject?.pathname || ""))
-      )
-    ),
-
-    O.getOrElse(() => "")
-  )
-}
-
-/**
- * Parses and structures multipart/form-data from -F argument of curl command
- * @param parsedArguments Parsed Arguments object
- * @returns Option of Record<string, string> type containing key-value pairs of multipart/form-data
- */
-function getFArgumentMultipartData(
-  parsedArguments: parser.Arguments
-): O.Option<Record<string, string>> {
-  // -F multipart data
-
-  return pipe(
-    parsedArguments.F as Array<string> | string | undefined,
-    O.fromNullable,
-    O.map((fArgs) => (Array.isArray(fArgs) ? fArgs : [fArgs])),
-    O.map((fArgs: string[]) =>
-      pipe(
-        fArgs.map((multipartArgument: string) => {
-          const [key, value] = multipartArgument.split("=", 2)
-
-          if (parsedArguments["form-string"])
-            return [key, value] as [string, string]
-          return [key, value[0] === "@" || value[0] === "<" ? "" : value] as [
-            string,
-            string
-          ]
-        }),
-        RA.toArray,
-        tupleToRecord
-      )
-    )
-  )
-}
-
-/**
- * Get method type from X argument in curl string or
- * find it out through presence of other arguments
- * @param parsedArguments Parsed Arguments object
- * @returns Method type
- */
-function getMethod(parsedArguments: parser.Arguments): string {
-  const Xarg: string = parsedArguments.X
-  return pipe(
-    Xarg?.match(/GET|POST|PUT|PATCH|DELETE|HEAD|CONNECT|OPTIONS|TRACE|CUSTOM/i),
-    O.fromNullable,
-    O.match(
-      () => {
-        if (parsedArguments.T) return "put"
-        else if (parsedArguments.I || parsedArguments.head) return "head"
-        else if (parsedArguments.G) return "get"
-        else if (parsedArguments.d || parsedArguments.F) return "post"
-        else return "get"
-      },
-      (method) => method[0]
-    )
-  )
-}
-
-function getHeaders(parsedArguments: parser.Arguments) {
-  let headers: Record<string, string> = {}
-
-  headers = pipe(
-    parsedArguments.H,
-    O.fromNullable,
-    O.map((h) => (Array.isArray(h) ? h : [h])),
-    O.map((h: string[]) =>
-      pipe(
-        h.map((header: string) => {
-          const [key, value] = header.split(": ")
-          return [key.trim(), value.trim()] as [string, string]
-        }),
-        RA.toArray,
-        tupleToRecord
-      )
-    ),
-    O.match(
-      () => ({}),
-      (h) => h
-    )
-  )
-
-  const userAgent = parsedArguments.A || parsedArguments["user-agent"]
-  if (userAgent) headers["User-Agent"] = userAgent
-
-  return headers
-}
-
-function recordToHoppHeaders(headers: Record<string, string>) {
-  const hoppHeaders = []
-  for (const key of Object.keys(headers)) {
-    hoppHeaders.push({
-      key,
-      value: headers[key],
-      active: true,
-    })
-  }
-  return hoppHeaders
-}
-
-function getParamPairs(rawdata: string[]) {
-  return pipe(
-    rawdata,
-    O.fromNullable,
-    O.map((p) => p.map(decodeURIComponent)),
-    O.map((pairs) => pairs.map((pair) => pair.split("="))),
-    O.getOrElseW(() => undefined)
-  )
-}
-
-function getAuthObject(
-  parsedArguments: parser.Arguments,
-  headers: Record<string, string>,
-  urlObject: URL | undefined
-): HoppRESTAuth {
-  // >> preference order:
-  //    - Auth headers
-  //    - apikey headers
-  //    - --user arg
-  //    - Creds provided along with URL
-
-  let auth: HoppRESTAuth = {
-    authActive: false,
-    authType: "none",
-  }
-  let username: string = ""
-  let password: string = ""
-
-  if (headers?.Authorization) {
-    auth = pipe(
-      headers?.Authorization,
-      O.fromNullable,
-      O.map((a) => a.split(" ")),
-      O.filter((a) => a.length > 0),
-      O.chain((kv) =>
-        pipe(
-          (() => {
-            switch (kv[0].toLowerCase()) {
-              case "bearer":
-                return {
-                  authActive: true,
-                  authType: "bearer",
-                  token: kv[1],
-                }
-              case "apikey":
-                return {
-                  authActive: true,
-                  authType: "api-key",
-                  key: "apikey",
-                  value: kv[1],
-                  addTo: "headers",
-                }
-              case "basic": {
-                const buffer = Buffer.from(kv[1], "base64")
-                const [username, password] = buffer.toString().split(":")
-                return {
-                  authActive: true,
-                  authType: "basic",
-                  username,
-                  password,
-                }
-              }
-              default:
-                return undefined
-            }
-          })(),
-          O.fromNullable
         )
-      ),
-      O.getOrElseW(() => ({ authActive: false, authType: "none" }))
-    ) as HoppRESTAuth
-  } else if (headers?.apikey || headers["api-key"]) {
-    const apikey = headers?.apikey || headers["api-key"]
-    if (apikey)
-      auth = {
-        authActive: true,
-        authType: "api-key",
-        key: headers?.apikey ? "apikey" : "api-key",
-        value: apikey,
-        addTo: "headers",
-      }
-  } else {
-    if (parsedArguments.u) {
-      const user: string = parsedArguments.u ?? ""
-      ;[username, password] = user.split(":")
-    } else if (urlObject) {
-      username = urlObject.username
-      password = urlObject.password
-    }
-
-    if (!!username && !!password)
-      auth = {
-        authType: "basic",
-        authActive: true,
-        username,
-        password,
-      }
-  }
-
-  return auth
-}
-
-export function requestToHoppRequest(parsedCurl: CurlParserRequest) {
-  const endpoint = parsedCurl.urlString
-  const params = parsedCurl.queries || []
-  const body = parsedCurl.body
-
-  const method = parsedCurl.method?.toUpperCase() || "GET"
-  const contentType = parsedCurl.contentType
-  const auth = parsedCurl.auth
-  const headers =
-    parsedCurl.hoppHeaders.filter(
-      (header) =>
-        header.key !== "Authorization" &&
-        header.key !== "content-type" &&
-        header.key !== "Content-Type" &&
-        header.key !== "apikey" &&
-        header.key !== "api-key"
-    ) || []
-
-  let finalBody: HoppRESTReqBody = {
-    contentType: null,
-    body: null,
-  }
-
-  if (
-    contentType &&
-    contentType !== "multipart/form-data" &&
-    typeof body === "string"
+      )
+    ),
+    O.getOrElse(() => defaultRESTReq.body)
   )
-    // final body if multipart data is not present
-    finalBody = {
-      contentType,
-      body,
-    }
-  else if (Object.keys(parsedCurl.multipartUploads).length > 0) {
-    // if multipart data is present
-    const ydob: FormDataKeyValue[] = []
-    for (const key in parsedCurl.multipartUploads) {
-      ydob.push({
-        active: true,
-        isFile: false,
-        key,
-        value: parsedCurl.multipartUploads[key],
-      })
-    }
-    finalBody = {
-      contentType: "multipart/form-data",
-      body: ydob,
-    }
-  }
 
   return makeRESTRequest({
-    name: "Untitled request",
-    endpoint,
-    method,
-    params,
-    headers,
-    preRequestScript: "",
-    testScript: "",
+    name: defaultRESTReq.name,
+    endpoint: urlString,
+    method: (method || defaultRESTReq.method).toUpperCase(),
+    params: queries ?? defaultRESTReq.params,
+    headers: hoppHeaders,
+    preRequestScript: defaultRESTReq.preRequestScript,
+    testScript: defaultRESTReq.testScript,
     auth,
     body: finalBody,
   })

packages/hoppscotch-app/helpers/curl/index.ts

@@ -1,31 +1,5 @@
-import {
-  HoppRESTReqBody,
-  HoppRESTHeader,
-  HoppRESTParam,
-  HoppRESTAuth,
-} from "@hoppscotch/data"
 import { flow } from "fp-ts/function"
 import cloneDeep from "lodash/cloneDeep"
-import { parseCurlCommand, requestToHoppRequest } from "./curlparser"
+import { parseCurlCommand } from "./curlparser"
 
-export type CurlParserRequest = {
-  urlString: string
-  urlObject: URL | undefined
-  compressed: boolean
-  queries: HoppRESTParam[]
-  hoppHeaders: HoppRESTHeader[]
-  method: string
-  contentType: HoppRESTReqBody["contentType"]
-  body: HoppRESTReqBody["body"]
-  cookies: Record<string, string> | undefined
-  cookieString: string
-  multipartUploads: Record<string, string>
-  isDataBinary: boolean
-  auth: HoppRESTAuth
-}
-
-export const parseCurlToHoppRESTReq = flow(
-  parseCurlCommand,
-  requestToHoppRequest,
-  cloneDeep
-)
+export const parseCurlToHoppRESTReq = flow(parseCurlCommand, cloneDeep)

packages/hoppscotch-app/helpers/curl/sub_helpers/auth.ts

@@ -0,0 +1,116 @@
+import { HoppRESTAuth } from "@hoppscotch/data"
+import parser from "yargs-parser"
+import * as O from "fp-ts/Option"
+import * as S from "fp-ts/string"
+import { pipe } from "fp-ts/function"
+import { getDefaultRESTRequest } from "~/newstore/RESTSession"
+import { objHasProperty } from "~/helpers/functional/object"
+
+const defaultRESTReq = getDefaultRESTRequest()
+
+const getAuthFromAuthHeader = (headers: Record<string, string>) =>
+  pipe(
+    headers.Authorization,
+    O.fromNullable,
+    O.map((a) => a.split(" ")),
+    O.filter((a) => a.length > 1),
+    O.chain((kv) =>
+      O.fromNullable(
+        (() => {
+          switch (kv[0].toLowerCase()) {
+            case "bearer":
+              return <HoppRESTAuth>{
+                authActive: true,
+                authType: "bearer",
+                token: kv[1],
+              }
+            case "basic": {
+              const [username, password] = pipe(
+                O.tryCatch(() => atob(kv[1])),
+                O.map(S.split(":")),
+                // can have a username with no password
+                O.filter((arr) => arr.length > 0),
+                O.map(
+                  ([username, password]) =>
+                    <[string, string]>[username, password]
+                ),
+                O.getOrElse(() => ["", ""])
+              )
+
+              if (!username) return undefined
+
+              return <HoppRESTAuth>{
+                authActive: true,
+                authType: "basic",
+                username,
+                password: password ?? "",
+              }
+            }
+            default:
+              return undefined
+          }
+        })()
+      )
+    )
+  )
+
+const getAuthFromParsedArgs = (parsedArguments: parser.Arguments) =>
+  pipe(
+    parsedArguments,
+    O.fromPredicate(objHasProperty("u", "string")),
+    O.chain((args) =>
+      pipe(
+        args.u,
+        S.split(":"),
+        // can have a username with no password
+        O.fromPredicate((arr) => arr.length > 0 && arr[0].length > 0),
+        O.map(
+          ([username, password]) => <[string, string]>[username, password ?? ""]
+        )
+      )
+    ),
+    O.map(
+      ([username, password]) =>
+        <HoppRESTAuth>{
+          authActive: true,
+          authType: "basic",
+          username,
+          password,
+        }
+    )
+  )
+
+const getAuthFromURLObject = (urlObject: URL) =>
+  pipe(
+    urlObject,
+    (url) => [url.username, url.password ?? ""],
+    // can have a username with no password
+    O.fromPredicate(([username, _]) => !!username && username.length > 0),
+    O.map(
+      ([username, password]) =>
+        <HoppRESTAuth>{
+          authActive: true,
+          authType: "basic",
+          username,
+          password,
+        }
+    )
+  )
+
+/**
+ * Preference order:
+ *    - Auth headers
+ *    - --user or -u argument
+ *    - Creds provided along with URL
+ */
+export const getAuthObject = (
+  parsedArguments: parser.Arguments,
+  headers: Record<string, string>,
+  urlObject: URL
+): HoppRESTAuth =>
+  pipe(
+    getAuthFromAuthHeader(headers),
+    O.alt(() => getAuthFromParsedArgs(parsedArguments)),
+    O.alt(() => getAuthFromURLObject(urlObject)),
+    O.getOrElse(() => defaultRESTReq.auth)
+  )

packages/hoppscotch-app/helpers/curl/sub_helpers/body.ts

@@ -0,0 +1,169 @@
+import parser from "yargs-parser"
+import { pipe, flow } from "fp-ts/function"
+import * as O from "fp-ts/Option"
+import * as A from "fp-ts/Array"
+import * as RNEA from "fp-ts/ReadonlyNonEmptyArray"
+import * as S from "fp-ts/string"
+import {
+  HoppRESTReqBody,
+  HoppRESTReqBodyFormData,
+  ValidContentTypes,
+  knownContentTypes,
+} from "@hoppscotch/data"
+import { detectContentType, parseBody } from "./contentParser"
+import { tupleToRecord } from "~/helpers/functional/record"
+import {
+  objHasProperty,
+  objHasArrayProperty,
+} from "~/helpers/functional/object"
+
+type BodyReturnType =
+  | { type: "FORMDATA"; body: Record<string, string> }
+  | {
+      type: "NON_FORMDATA"
+      body: Exclude<HoppRESTReqBody, HoppRESTReqBodyFormData>
+    }
+
+/** Parses body based on the content type
+ * @param rData Raw data
+ * @param cType Sanitized content type
+ * @returns Option of parsed body of type string | Record<string, string>
+ */
+const getBodyFromContentType =
+  (rData: string, cType: HoppRESTReqBody["contentType"]) => (rct: string) =>
+    pipe(
+      cType,
+      O.fromPredicate((ctype) => ctype === "multipart/form-data"),
+      O.chain(() =>
+        pipe(
+          // pass rawContentType for boundary ascertion
+          parseBody(rData, cType, rct),
+          O.filter((parsedBody) => typeof parsedBody !== "string")
+        )
+      ),
+      O.alt(() =>
+        pipe(
+          parseBody(rData, cType),
+          O.filter(
+            (parsedBody) =>
+              typeof parsedBody === "string" && parsedBody.length > 0
+          )
+        )
+      )
+    )
+
+const getContentTypeFromRawContentType = (rawContentType: string) =>
+  pipe(
+    rawContentType,
+    O.fromPredicate((rct) => rct.length > 0),
+    // get everything before semi-colon
+    O.map(flow(S.toLowerCase, S.split(";"), RNEA.head)),
+    // if rawContentType is valid, cast it to contentType type
+    O.filter((ct) => Object.keys(knownContentTypes).includes(ct)),
+    O.map((ct) => ct as HoppRESTReqBody["contentType"])
+  )
+
+const getContentTypeFromRawData = (rawData: string) =>
+  pipe(
+    rawData,
+    O.fromPredicate((rd) => rd.length > 0),
+    O.map(detectContentType)
+  )
+
+export const getBody = (
+  rawData: string,
+  rawContentType: string,
+  contentType: HoppRESTReqBody["contentType"]
+): O.Option<BodyReturnType> => {
+  return pipe(
+    O.Do,
+
+    O.bind("cType", () =>
+      pipe(
+        // get provided content-type
+        contentType,
+        O.fromNullable,
+        // or figure it out
+        O.alt(() => getContentTypeFromRawContentType(rawContentType)),
+        O.alt(() => getContentTypeFromRawData(rawData))
+      )
+    ),
+
+    O.bind("rData", () =>
+      pipe(
+        rawData,
+        O.fromPredicate(() => rawData.length > 0)
+      )
+    ),
+
+    O.bind("ctBody", ({ cType, rData }) =>
+      pipe(rawContentType, getBodyFromContentType(rData, cType))
+    ),
+
+    O.map(({ cType, ctBody }) =>
+      typeof ctBody === "string"
+        ? {
+            type: "NON_FORMDATA",
+            body: {
+              body: ctBody,
+              contentType: cType as Exclude<
+                ValidContentTypes,
+                "multipart/form-data"
+              >,
+            },
+          }
+        : { type: "FORMDATA", body: ctBody }
+    )
+  )
+}
+
+/**
+ * Parses and structures multipart/form-data from -F argument of curl command
+ * @param parsedArguments Parsed Arguments object
+ * @returns Option of Record<string, string> type containing key-value pairs of multipart/form-data
+ */
+export function getFArgumentMultipartData(
+  parsedArguments: parser.Arguments
+): O.Option<Record<string, string>> {
+  // --form or -F multipart data
+
+  return pipe(
+    parsedArguments,
+    // make it an array if not already
+    O.fromPredicate(objHasProperty("F", "string")),
+    O.map((args) => [args.F]),
+    O.alt(() =>
+      pipe(
+        parsedArguments,
+        O.fromPredicate(objHasArrayProperty("F", "string")),
+        O.map((args) => args.F)
+      )
+    ),
+    O.chain(
+      flow(
+        A.map(S.split("=")),
+        // can only have a key and no value
+        O.fromPredicate((fArgs) => fArgs.length > 0),
+        O.map(
+          flow(
+            A.map(([k, v]) =>
+              pipe(
+                parsedArguments,
+                // form-string option allows for "@" and "<" prefixes
+                //   without them being considered as files
+                O.fromPredicate(objHasProperty("form-string", "boolean")),
+                O.match(
+                  // leave the value field empty for files
+                  () => [k, v[0] === "@" || v[0] === "<" ? "" : v],
+                  (_) => [k, v]
+                )
+              )
+            ),
+            A.map(([k, v]) => [k, v] as [string, string]),
+            tupleToRecord
+          )
+        )
+      )
+    )
+  )
+}

packages/hoppscotch-app/helpers/curl/sub_helpers/contentParser.ts

@@ -0,0 +1,303 @@
+import { HoppRESTReqBody } from "@hoppscotch/data"
+import * as O from "fp-ts/Option"
+import * as RA from "fp-ts/ReadonlyArray"
+import * as S from "fp-ts/string"
+import { pipe, flow } from "fp-ts/function"
+import { tupleToRecord } from "~/helpers/functional/record"
+import { safeParseJSON } from "~/helpers/functional/json"
+import { optionChoose } from "~/helpers/functional/option"
+
+const isJSON = flow(safeParseJSON, O.isSome)
+
+const isXML = (rawData: string) =>
+  pipe(
+    rawData,
+    O.fromPredicate(() => /<\/?[a-zA-Z][\s\S]*>/i.test(rawData)),
+    O.chain(prettifyXml),
+    O.isSome
+  )
+
+const isHTML = (rawData: string) =>
+  pipe(
+    rawData,
+    O.fromPredicate(() => /<\/?[a-zA-Z][\s\S]*>/i.test(rawData)),
+    O.isSome
+  )
+
+const isFormData = (rawData: string) =>
+  pipe(
+    rawData.match(/^-{2,}[A-Za-z0-9]+\\r\\n/),
+    O.fromNullable,
+    O.filter((boundaryMatch) => boundaryMatch.length > 0),
+    O.isSome
+  )
+
+const isXWWWFormUrlEncoded = (rawData: string) =>
+  pipe(
+    rawData,
+    O.fromPredicate((rd) => /([^&=]+)=([^&=]*)/.test(rd)),
+    O.isSome
+  )
+
+/**
+ * Detects the content type of the input string
+ * @param rawData String for which content type is to be detected
+ * @returns Content type of the data
+ */
+export const detectContentType = (
+  rawData: string
+): HoppRESTReqBody["contentType"] =>
+  pipe(
+    rawData,
+    optionChoose([
+      [(rd) => !rd, null],
+      [isJSON, "application/json" as const],
+      [isFormData, "multipart/form-data" as const],
+      [isXML, "application/xml" as const],
+      [isHTML, "text/html" as const],
+      [isXWWWFormUrlEncoded, "application/x-www-form-urlencoded" as const],
+    ]),
+    O.getOrElseW(() => "text/plain" as const)
+  )
+
+const multipartFunctions = {
+  getBoundary(rawData: string, rawContentType: string | undefined) {
+    return pipe(
+      rawContentType,
+      O.fromNullable,
+      O.filter((rct) => rct.length > 0),
+      O.match(
+        () => this.getBoundaryFromRawData(rawData),
+        (rct) => this.getBoundaryFromRawContentType(rawData, rct)
+      )
+    )
+  },
+
+  getBoundaryFromRawData(rawData: string) {
+    return pipe(
+      rawData.match(/(-{2,}[A-Za-z0-9]+)\\r\\n/g),
+      O.fromNullable,
+      O.filter((boundaryMatch) => boundaryMatch.length > 0),
+      O.map((matches) => matches[0].slice(0, -4))
+    )
+  },
+
+  getBoundaryFromRawContentType(rawData: string, rawContentType: string) {
+    return pipe(
+      rawContentType.match(/boundary=(.+)/),
+      O.fromNullable,
+      O.filter((boundaryContentMatch) => boundaryContentMatch.length > 1),
+      O.filter((matches) =>
+        rawData.replaceAll("\\r\\n", "").endsWith("--" + matches[1] + "--")
+      ),
+      O.map((matches) => "--" + matches[1])
+    )
+  },
+
+  splitUsingBoundaryAndNewLines(rawData: string, boundary: string) {
+    return pipe(
+      rawData,
+      S.split(RegExp(`${boundary}-*`)),
+      RA.filter((p) => p !== "" && p.includes("name")),
+      RA.map((p) =>
+        pipe(
+          p.replaceAll(/\\r\\n+/g, "\\r\\n"),
+          S.split("\\r\\n"),
+          RA.filter((q) => q !== "")
+        )
+      )
+    )
+  },
+
+  getNameValuePair(pair: readonly string[]) {
+    return pipe(
+      pair,
+      O.fromPredicate((p) => p.length > 1),
+      O.chain((pair) => O.fromNullable(pair[0].match(/ name="(\w+)"/))),
+      O.filter((nameMatch) => nameMatch.length > 0),
+      O.chain((nameMatch) =>
+        pipe(
+          nameMatch[0],
+          S.replace(/"/g, ""),
+          S.split("="),
+          O.fromPredicate((q) => q.length === 2),
+          O.map(
+            (nameArr) =>
+              [nameArr[1], pair[0].includes("filename") ? "" : pair[1]] as [
+                string,
+                string
+              ]
+          )
+        )
+      )
+    )
+  },
+}
+
+const getFormDataBody = (rawData: string, rawContentType: string | undefined) =>
+  pipe(
+    multipartFunctions.getBoundary(rawData, rawContentType),
+    O.map((boundary) =>
+      pipe(
+        multipartFunctions.splitUsingBoundaryAndNewLines(rawData, boundary),
+        RA.filterMap((p) => multipartFunctions.getNameValuePair(p)),
+        RA.toArray
+      )
+    ),
+
+    O.filter((arr) => arr.length > 0),
+    O.map(tupleToRecord)
+  )
+
+const getHTMLBody = flow(formatHTML, O.of)
+
+const getXMLBody = (rawData: string) =>
+  pipe(
+    rawData,
+    prettifyXml,
+    O.alt(() => O.some(rawData))
+  )
+
+const getFormattedJSON = flow(
+  safeParseJSON,
+  O.map((parsedJSON) => JSON.stringify(parsedJSON, null, 2)),
+  O.getOrElse(() => "{}"),
+  O.of
+)
+
+const getXWWWFormUrlEncodedBody = flow(
+  decodeURIComponent,
+  (decoded) => decoded.match(/(([^&=]+)=?([^&=]*))/g),
+  O.fromNullable,
+  O.map((pairs) => pairs.map((p) => p.replace("=", ": ")).join("\n"))
+)
+
+/**
+ * Parses provided string according to the content type
+ * @param rawData Data to be parsed
+ * @param contentType Content type of the data
+ * @param rawContentType Optional parameter required for multipart/form-data
+ * @returns Option of parsed body as string or Record object for multipart/form-data
+ */
+export function parseBody(
+  rawData: string,
+  contentType: HoppRESTReqBody["contentType"],
+  rawContentType?: string
+): O.Option<string | Record<string, string>> {
+  switch (contentType) {
+    case "application/hal+json":
+    case "application/ld+json":
+    case "application/vnd.api+json":
+    case "application/json":
+      return getFormattedJSON(rawData)
+
+    case "application/x-www-form-urlencoded":
+      return getXWWWFormUrlEncodedBody(rawData)
+
+    case "multipart/form-data":
+      return getFormDataBody(rawData, rawContentType)
+
+    case "text/html":
+      return getHTMLBody(rawData)
+
+    case "application/xml":
+      return getXMLBody(rawData)
+
+    case "text/plain":
+    default:
+      return O.some(rawData)
+  }
+}
+
+/**
+ * Formatter Functions
+ */
+
+/**
+ * Prettifies XML string
+ * @param sourceXml The string to format
+ * @returns Indented XML string (uses spaces)
+ */
+function prettifyXml(sourceXml: string) {
+  return pipe(
+    O.tryCatch(() => {
+      const xmlDoc = new DOMParser().parseFromString(
+        sourceXml,
+        "application/xml"
+      )
+
+      if (xmlDoc.querySelector("parsererror")) {
+        throw new Error("Unstructured Body")
+      }
+
+      const xsltDoc = new DOMParser().parseFromString(
+        [
+          // describes how we want to modify the XML - indent everything
+          '<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform">',
+          '  <xsl:strip-space elements="*"/>',
+          '  <xsl:template match="para[content-style][not(text())]">', // change to just text() to strip space in text nodes
+          '    <xsl:value-of select="normalize-space(.)"/>',
+          "  </xsl:template>",
+          '  <xsl:template match="node()|@*">',
+          '    <xsl:copy><xsl:apply-templates select="node()|@*"/></xsl:copy>',
+          "  </xsl:template>",
+          '  <xsl:output indent="yes"/>',
+          "</xsl:stylesheet>",
+        ].join("\n"),
+        "application/xml"
+      )
+
+      const xsltProcessor = new XSLTProcessor()
+      xsltProcessor.importStylesheet(xsltDoc)
+      const resultDoc = xsltProcessor.transformToDocument(xmlDoc)
+      const resultXml = new XMLSerializer().serializeToString(resultDoc)
+
+      return resultXml
+    })
+  )
+}
+
+/**
+ * Prettifies HTML string
+ * @param htmlString The string to format
+ * @returns Indented HTML string (uses spaces)
+ */
+function formatHTML(htmlString: string) {
+  const tab = "  "
+  let result = ""
+  let indent = ""
+  const emptyTags = [
+    "area",
+    "base",
+    "br",
+    "col",
+    "embed",
+    "hr",
+    "img",
+    "input",
+    "link",
+    "meta",
+    "param",
+    "source",
+    "track",
+    "wbr",
+  ]
+
+  const spl = htmlString.split(/>\s*</)
+  spl.forEach((element) => {
+    if (element.match(/^\/\w/)) {
+      indent = indent.substring(tab.length)
+    }
+
+    result += indent + "<" + element + ">\n"
+
+    if (
+      element.match(/^<?\w[^>]*[^/]$/) &&
+      !emptyTags.includes(element.match(/^([a-z]*)/i)?.at(1) || "")
+    ) {
+      indent += tab
+    }
+  })
+
+  return result.substring(1, result.length - 2)
+}

packages/hoppscotch-app/helpers/curl/sub_helpers/cookies.ts

@@ -0,0 +1,27 @@
+import parser from "yargs-parser"
+import * as cookie from "cookie"
+import * as O from "fp-ts/Option"
+import * as S from "fp-ts/string"
+import { pipe, flow } from "fp-ts/function"
+import { objHasProperty } from "~/helpers/functional/object"
+
+export function getCookies(parsedArguments: parser.Arguments) {
+  return pipe(
+    parsedArguments,
+    O.fromPredicate(objHasProperty("cookie", "string")),
+
+    O.map((args) => args.cookie),
+
+    O.alt(() =>
+      pipe(
+        parsedArguments,
+        O.fromPredicate(objHasProperty("b", "string")),
+        O.map((args) => args.b)
+      )
+    ),
+
+    O.map(flow(S.replace(/^cookie: /i, ""), cookie.parse)),
+
+    O.getOrElse(() => ({}))
+  )
+}

packages/hoppscotch-app/helpers/curl/sub_helpers/headers.ts

@@ -0,0 +1,76 @@
+import parser from "yargs-parser"
+import { pipe, flow } from "fp-ts/function"
+import { HoppRESTHeader } from "@hoppscotch/data"
+import * as A from "fp-ts/Array"
+import * as S from "fp-ts/string"
+import * as O from "fp-ts/Option"
+import { tupleToRecord } from "~/helpers/functional/record"
+import {
+  objHasProperty,
+  objHasArrayProperty,
+} from "~/helpers/functional/object"
+
+const getHeaderPair = flow(
+  S.split(": "),
+  // must have a key and a value
+  O.fromPredicate((arr) => arr.length === 2),
+  O.map(([k, v]) => [k.trim(), v?.trim() ?? ""] as [string, string])
+)
+
+export function getHeaders(parsedArguments: parser.Arguments) {
+  let headers: Record<string, string> = {}
+
+  headers = pipe(
+    parsedArguments,
+    // make it an array if not already
+    O.fromPredicate(objHasProperty("H", "string")),
+    O.map((args) => [args.H]),
+    O.alt(() =>
+      pipe(
+        parsedArguments,
+        O.fromPredicate(objHasArrayProperty("H", "string")),
+        O.map((args) => args.H)
+      )
+    ),
+    O.map(
+      flow(
+        A.map(getHeaderPair),
+        A.filterMap((a) => a),
+        tupleToRecord
+      )
+    ),
+    O.getOrElseW(() => ({}))
+  )
+
+  if (
+    objHasProperty("A", "string")(parsedArguments) ||
+    objHasProperty("user-agent", "string")(parsedArguments)
+  )
+    headers["User-Agent"] = parsedArguments.A ?? parsedArguments["user-agent"]
+
+  const rawContentType =
+    headers["Content-Type"] ?? headers["content-type"] ?? ""
+
+  return {
+    headers,
+    rawContentType,
+  }
+}
+
+export const recordToHoppHeaders = (
+  headers: Record<string, string>
+): HoppRESTHeader[] =>
+  pipe(
+    Object.keys(headers),
+    A.map((key) => ({
+      key,
+      value: headers[key],
+      active: true,
+    })),
+    A.filter(
+      (header) =>
+        header.key !== "Authorization" &&
+        header.key !== "content-type" &&
+        header.key !== "Content-Type"
+    )
+  )

packages/hoppscotch-app/helpers/curl/sub_helpers/method.ts

@@ -0,0 +1,68 @@
+import parser from "yargs-parser"
+import { pipe } from "fp-ts/function"
+import * as O from "fp-ts/Option"
+import * as R from "fp-ts/Refinement"
+import { getDefaultRESTRequest } from "~/newstore/RESTSession"
+import {
+  objHasProperty,
+  objHasArrayProperty,
+} from "~/helpers/functional/object"
+
+const defaultRESTReq = getDefaultRESTRequest()
+
+const getMethodFromXArg = (parsedArguments: parser.Arguments) =>
+  pipe(
+    parsedArguments,
+    O.fromPredicate(objHasProperty("X", "string")),
+    O.map((args) => args.X.trim()),
+    O.chain((xarg) =>
+      pipe(
+        O.fromNullable(
+          xarg.match(/GET|POST|PUT|PATCH|DELETE|HEAD|CONNECT|OPTIONS|TRACE/i)
+        ),
+        O.alt(() => O.fromNullable(xarg.match(/[a-zA-Z]+/)))
+      )
+    ),
+    O.map((method) => method[0])
+  )
+
+const getMethodByDeduction = (parsedArguments: parser.Arguments) => {
+  if (
+    pipe(
+      objHasProperty("T", "string"),
+      R.or(objHasProperty("upload-file", "string"))
+    )(parsedArguments)
+  )
+    return O.some("put")
+  else if (
+    pipe(
+      objHasProperty("I", "boolean"),
+      R.or(objHasProperty("head", "boolean"))
+    )(parsedArguments)
+  )
+    return O.some("head")
+  else if (objHasProperty("G", "boolean")(parsedArguments)) return O.some("get")
+  else if (
+    pipe(
+      objHasProperty("d", "string"),
+      R.or(objHasArrayProperty("d", "string")),
+      R.or(objHasProperty("F", "string")),
+      R.or(objHasArrayProperty("F", "string"))
+    )(parsedArguments)
+  )
+    return O.some("post")
+  else return O.none
+}
+
+/**
+ * Get method type from X argument in curl string or
+ * find it out through other arguments
+ * @param parsedArguments Parsed Arguments object
+ * @returns Method string
+ */
+export const getMethod = (parsedArguments: parser.Arguments): string =>
+  pipe(
+    getMethodFromXArg(parsedArguments),
+    O.alt(() => getMethodByDeduction(parsedArguments)),
+    O.getOrElse(() => defaultRESTReq.method)
+  )

packages/hoppscotch-app/helpers/curl/sub_helpers/preproc.ts

@@ -0,0 +1,69 @@
+import { pipe, flow } from "fp-ts/function"
+import * as S from "fp-ts/string"
+import * as O from "fp-ts/Option"
+import * as A from "fp-ts/Array"
+
+const replaceables: { [key: string]: string } = {
+  "--request": "-X",
+  "--header": "-H",
+  "--url": "",
+  "--form": "-F",
+  "--data-raw": "--data",
+  "--data": "-d",
+  "--data-ascii": "-d",
+  "--data-binary": "-d",
+  "--user": "-u",
+  "--get": "-G",
+}
+
+const paperCuts = flow(
+  // remove '\' and newlines
+  S.replace(/ ?\\ ?$/gm, " "),
+  S.replace(/\n/g, ""),
+  // remove all $ symbols from start of argument values
+  S.replace(/\$'/g, "'"),
+  S.replace(/\$"/g, '"')
+)
+
+// replace --zargs option with -Z
+const replaceLongOptions = (curlCmd: string) =>
+  pipe(Object.keys(replaceables), A.reduce(curlCmd, replaceFunction))
+
+const replaceFunction = (curlCmd: string, r: string) =>
+  pipe(
+    curlCmd,
+    O.fromPredicate(
+      () => r.includes("data") || r.includes("form") || r.includes("header")
+    ),
+    O.map(S.replace(RegExp(`[ \t]${r}(["' ])`, "g"), ` ${replaceables[r]}$1`)),
+    O.alt(() =>
+      pipe(
+        curlCmd,
+        S.replace(RegExp(`[ \t]${r}(["' ])`), ` ${replaceables[r]}$1`),
+        O.of
+      )
+    ),
+    O.getOrElse(() => "")
+  )
+
+// yargs parses -XPOST as separate arguments. just prescreen for it.
+const prescreenXArgs = flow(
+  S.replace(
+    / -X(GET|POST|PUT|PATCH|DELETE|HEAD|CONNECT|OPTIONS|TRACE)/,
+    " -X $1"
+  ),
+  S.trim
+)
+
+/**
+ * Sanitizes and makes curl string processable
+ * @param curlCommand Raw curl command string
+ * @returns Processed curl command string
+ */
+export const preProcessCurlCommand = (curlCommand: string) =>
+  pipe(
+    curlCommand,
+    O.fromPredicate((curlCmd) => curlCmd.length > 0),
+    O.map(flow(paperCuts, replaceLongOptions, prescreenXArgs)),
+    O.getOrElse(() => "")
+  )

packages/hoppscotch-app/helpers/curl/sub_helpers/queries.ts

@@ -0,0 +1,43 @@
+import { pipe, flow } from "fp-ts/function"
+import * as O from "fp-ts/Option"
+import * as A from "fp-ts/Array"
+import * as Sep from "fp-ts/Separated"
+import { HoppRESTParam } from "@hoppscotch/data"
+
+const isDangling = ([_, value]: [string, string]) => !value
+
+/**
+ * Converts queries to HoppRESTParam format and separates dangling ones
+ * @param params Array of key value pairs of queries
+ * @returns Object containing separated queries and dangling queries
+ */
+export function getQueries(params: Array<[string, string]>): {
+  queries: Array<HoppRESTParam>
+  danglingParams: Array<string>
+} {
+  return pipe(
+    params,
+    O.of,
+    O.map(
+      flow(
+        A.partition(isDangling),
+        Sep.bimap(
+          A.map(([key, value]) => ({
+            key,
+            value,
+            active: true,
+          })),
+          A.map(([key]) => key)
+        ),
+        (sep) => ({
+          queries: sep.left,
+          danglingParams: sep.right,
+        })
+      )
+    ),
+    O.getOrElseW(() => ({
+      queries: [],
+      danglingParams: [],
+    }))
+  )
+}

packages/hoppscotch-app/helpers/curl/sub_helpers/url.ts

@@ -0,0 +1,80 @@
+import parser from "yargs-parser"
+import { pipe } from "fp-ts/function"
+import * as O from "fp-ts/Option"
+import { getDefaultRESTRequest } from "~/newstore/RESTSession"
+import { stringArrayJoin } from "~/helpers/functional/array"
+
+const defaultRESTReq = getDefaultRESTRequest()
+
+const getProtocolForBaseURL = (baseURL: string) =>
+  pipe(
+    // get the base URL
+    /^([^\s:@]+:[^\s:@]+@)?([^:/\s]+)([:]*)/.exec(baseURL),
+    O.fromNullable,
+    O.filter((burl) => burl.length > 1),
+    O.map((burl) => burl[2]),
+    // set protocol to http for local URLs
+    O.map((burl) =>
+      burl === "localhost" || burl === "127.0.0.1"
+        ? "http://" + baseURL
+        : "https://" + baseURL
+    )
+  )
+
+/**
+ * Processes URL string and returns the URL object
+ * @param parsedArguments Parsed Arguments object
+ * @returns URL object
+ */
+export function parseURL(parsedArguments: parser.Arguments) {
+  return pipe(
+    // contains raw url string
+    parsedArguments._[1],
+    O.fromNullable,
+    // preprocess url string
+    O.map((u) => u.toString().replace(/["']/g, "").trim()),
+    O.chain((u) =>
+      pipe(
+        // check if protocol is available
+        /^[^:\s]+(?=:\/\/)/.exec(u),
+        O.fromNullable,
+        O.map((_) => u),
+        O.alt(() => getProtocolForBaseURL(u))
+      )
+    ),
+    O.map((u) => new URL(u)),
+    // no url found
+    O.getOrElse(() => new URL(defaultRESTReq.endpoint))
+  )
+}
+
+/**
+ * Joins dangling params to origin
+ * @param urlObject URL object containing origin and pathname
+ * @param danglingParams Keys of params with empty values
+ * @returns origin string concatenated with dangling paramas
+ */
+export function concatParams(urlObject: URL, danglingParams: string[]) {
+  return pipe(
+    O.Do,
+
+    O.bind("originString", () =>
+      pipe(
+        urlObject.origin,
+        O.fromPredicate((h) => h !== "")
+      )
+    ),
+
+    O.map(({ originString }) =>
+      pipe(
+        danglingParams,
+        O.fromPredicate((dp) => dp.length > 0),
+        O.map(stringArrayJoin("&")),
+        O.map((h) => originString + (urlObject.pathname || "") + "?" + h),
+        O.getOrElse(() => originString + (urlObject.pathname || ""))
+      )
+    ),
+
+    O.getOrElse(() => defaultRESTReq.endpoint)
+  )
+}

packages/hoppscotch-app/helpers/functional/object.ts

@@ -18,3 +18,74 @@ export const objFieldMatches =
   // eslint-disable-next-line no-unused-vars
   (obj: T): obj is T & { [_ in K]: V } =>
     matches.findIndex((x) => isEqual(obj[fieldName], x)) !== -1
+
+type JSPrimitive =
+  | "undefined"
+  | "object"
+  | "boolean"
+  | "number"
+  | "bigint"
+  | "string"
+  | "symbol"
+  | "function"
+
+type TypeFromPrimitive<P extends JSPrimitive | undefined> =
+  P extends "undefined"
+    ? undefined
+    : P extends "object"
+    ? object | null // typeof null === "object"
+    : P extends "boolean"
+    ? boolean
+    : P extends "number"
+    ? number
+    : P extends "bigint"
+    ? BigInt
+    : P extends "string"
+    ? string
+    : P extends "symbol"
+    ? Symbol
+    : P extends "function"
+    ? Function
+    : unknown
+
+type TypeFromPrimitiveArray<P extends JSPrimitive | undefined> =
+  P extends "undefined"
+    ? undefined
+    : P extends "object"
+    ? object[] | null
+    : P extends "boolean"
+    ? boolean[]
+    : P extends "number"
+    ? number[]
+    : P extends "bigint"
+    ? BigInt[]
+    : P extends "string"
+    ? string[]
+    : P extends "symbol"
+    ? Symbol[]
+    : P extends "function"
+    ? Function[]
+    : unknown[]
+
+export const objHasProperty =
+  <O extends object, K extends string, P extends JSPrimitive>(
+    prop: K,
+    type: P
+  ) =>
+  // eslint-disable-next-line
+  (obj: O): obj is O & { [_ in K]: TypeFromPrimitive<P> } =>
+    // eslint-disable-next-line
+    prop in obj && typeof (obj as any)[prop] === type
+
+export const objHasArrayProperty =
+  <O extends object, K extends string, P extends JSPrimitive>(
+    prop: K,
+    type: P
+  ) =>
+  // eslint-disable-next-line
+  (obj: O): obj is O & { [_ in K]: TypeFromPrimitiveArray<P> } =>
+    prop in obj &&
+    Array.isArray((obj as any)[prop]) &&
+    (obj as any)[prop].every(
+      (val: unknown) => typeof val === type // eslint-disable-line
+    )

packages/hoppscotch-app/helpers/functional/option.ts

@@ -0,0 +1,19 @@
+import * as O from "fp-ts/Option"
+import * as A from "fp-ts/Array"
+import { pipe } from "fp-ts/function"
+
+/**
+ * Tries to match one of the given predicates.
+ * If a predicate is matched, the associated value is returned in a Some.
+ * Else if none of the predicates is matched, None is returned.
+ * @param choice An array of tuples having a predicate function and the selected value
+ * @returns A function which takes the input and returns an Option
+ */
+export const optionChoose =
+  <T, V>(choice: Array<[(x: T) => boolean, V]>) =>
+  (input: T): O.Option<V> =>
+    pipe(
+      choice,
+      A.findFirst(([pred]) => pred(input)),
+      O.map(([_, value]) => value)
+    )