chore: env check func moved to utils file

packages/hoppscotch-backend/src/errors.ts

@@ -28,6 +28,24 @@ export const JSON_INVALID = 'json_invalid';
  */
 export const AUTH_PROVIDER_NOT_SPECIFIED = 'auth/provider_not_specified';
 
+/**
+ * Environment variable "ALLOWED_AUTH_PROVIDERS" is not present in .env file
+ */
+export const ENV_NOT_FOUND_KEY_AUTH_PROVIDERS =
+  '"ALLOWED_AUTH_PROVIDERS" is not present in .env file';
+
+/**
+ * Environment variable "ALLOWED_AUTH_PROVIDERS" is empty in .env file
+ */
+export const ENV_EMPTY_AUTH_PROVIDERS =
+  '"ALLOWED_AUTH_PROVIDERS" is empty in .env file';
+
+/**
+ * Environment variable "ALLOWED_AUTH_PROVIDERS" contains unsupported provider in .env file
+ */
+export const ENV_NOT_SUPPORT_AUTH_PROVIDERS =
+  '"ALLOWED_AUTH_PROVIDERS" contains an unsupported auth provider in .env file';
+
 /**
  * Tried to delete a user data document from fb firestore but failed.
  * (FirebaseService)

packages/hoppscotch-backend/src/main.ts

@@ -5,35 +5,7 @@ import * as cookieParser from 'cookie-parser';
 import { VersioningType } from '@nestjs/common';
 import * as session from 'express-session';
 import { emitGQLSchemaFile } from './gql-schema';
-import { AuthProvider } from './auth/helper';
+import { checkEnvironmentAuthProvider } from './utils';
-
-function checkEnvironmentAuthProvider() {
-  if (!process.env.hasOwnProperty('ALLOWED_AUTH_PROVIDERS')) {
-    console.log(`"ALLOWED_AUTH_PROVIDERS" is not present in .env file`);
-    process.exit(1);
-  }
-
-  if (process.env.ALLOWED_AUTH_PROVIDERS === '') {
-    console.log(`"ALLOWED_AUTH_PROVIDERS" is empty in .env file`);
-    process.exit(1);
-  }
-
-  const givenAuthProviders = process.env.ALLOWED_AUTH_PROVIDERS.split(',').map(
-    (provider) => provider.toLocaleUpperCase(),
-  );
-  const supportedAuthProviders = Object.values(AuthProvider).map(
-    (provider: string) => provider.toLocaleUpperCase(),
-  );
-
-  for (const givenAuthProvider of givenAuthProviders) {
-    if (!supportedAuthProviders.includes(givenAuthProvider)) {
-      console.error(
-        `Environment variable "ALLOWED_AUTH_PROVIDERS" contains an unsupported auth provider "${givenAuthProvider}".`,
-      );
-      process.exit(1);
-    }
-  }
-}
 
 async function bootstrap() {
   console.log(`Running in production: ${process.env.PRODUCTION}`);

packages/hoppscotch-backend/src/utils.ts

@@ -9,7 +9,8 @@ import * as E from 'fp-ts/Either';
 import * as A from 'fp-ts/Array';
 import { TeamMemberRole } from './team/team.model';
 import { User } from './user/user.model';
-import { JSON_INVALID } from './errors';
+import { ENV_EMPTY_AUTH_PROVIDERS, ENV_NOT_FOUND_KEY_AUTH_PROVIDERS, ENV_NOT_SUPPORT_AUTH_PROVIDERS, JSON_INVALID } from './errors';
+import { AuthProvider } from './auth/helper';
 
 /**
  * A workaround to throw an exception in an expression.
@@ -152,3 +153,31 @@ export function isValidLength(title: string, length: number) {
 
   return true;
 }
+
+/**
+ * This function is called by bootstrap() in main.ts
+ *  It checks if the "ALLOWED_AUTH_PROVIDERS" environment variable is properly set or not.
+ * If not, it throws an error.
+ */
+export function checkEnvironmentAuthProvider() {
+  if (!process.env.hasOwnProperty('ALLOWED_AUTH_PROVIDERS')) {
+    throw new Error(ENV_NOT_FOUND_KEY_AUTH_PROVIDERS);
+  }
+
+  if (process.env.ALLOWED_AUTH_PROVIDERS === '') {
+    throw new Error(ENV_EMPTY_AUTH_PROVIDERS);
+  }
+
+  const givenAuthProviders = process.env.ALLOWED_AUTH_PROVIDERS.split(',').map(
+    (provider) => provider.toLocaleUpperCase(),
+  );
+  const supportedAuthProviders = Object.values(AuthProvider).map(
+    (provider: string) => provider.toLocaleUpperCase(),
+  );
+
+  for (const givenAuthProvider of givenAuthProviders) {
+    if (!supportedAuthProviders.includes(givenAuthProvider)) {
+      throw new Error(ENV_NOT_SUPPORT_AUTH_PROVIDERS);
+    }
+  }
+}