fix: feedback resolve

This reverts commit 852353f24d170726b400fb729ac4caef7acfeb19.

packages/hoppscotch-backend/src/admin/admin.resolver.ts

@@ -27,9 +27,7 @@ import {
 } from './input-types.args';
 import { GqlThrottlerGuard } from 'src/guards/gql-throttler.guard';
 import { SkipThrottle } from '@nestjs/throttler';
-import { User } from 'src/user/user.model';
-import { PaginationArgs } from 'src/types/input-types.args';
-import { TeamInvitation } from 'src/team-invitation/team-invitation.model';
+import { UserDeletionResult } from 'src/user/user.model';
 
 @UseGuards(GqlThrottlerGuard)
 @Resolver(() => Admin)
@@ -49,203 +47,6 @@ export class AdminResolver {
     return admin;
   }
 
-  @ResolveField(() => [User], {
-    description: 'Returns a list of all admin users in infra',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  @UseGuards(GqlAuthGuard, GqlAdminGuard)
-  async admins() {
-    const admins = await this.adminService.fetchAdmins();
-    return admins;
-  }
-  @ResolveField(() => User, {
-    description: 'Returns a user info by UID',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  @UseGuards(GqlAuthGuard, GqlAdminGuard)
-  async userInfo(
-    @Args({
-      name: 'userUid',
-      type: () => ID,
-      description: 'The user UID',
-    })
-    userUid: string,
-  ): Promise<AuthUser> {
-    const user = await this.adminService.fetchUserInfo(userUid);
-    if (E.isLeft(user)) throwErr(user.left);
-    return user.right;
-  }
-
-  @ResolveField(() => [User], {
-    description: 'Returns a list of all the users in infra',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  @UseGuards(GqlAuthGuard, GqlAdminGuard)
-  async allUsers(
-    @Parent() admin: Admin,
-    @Args() args: PaginationArgs,
-  ): Promise<AuthUser[]> {
-    const users = await this.adminService.fetchUsers(args.cursor, args.take);
-    return users;
-  }
-
-  @ResolveField(() => [InvitedUser], {
-    description: 'Returns a list of all the invited users',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async invitedUsers(@Parent() admin: Admin): Promise<InvitedUser[]> {
-    const users = await this.adminService.fetchInvitedUsers();
-    return users;
-  }
-
-  @ResolveField(() => [Team], {
-    description: 'Returns a list of all the teams in the infra',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async allTeams(
-    @Parent() admin: Admin,
-    @Args() args: PaginationArgs,
-  ): Promise<Team[]> {
-    const teams = await this.adminService.fetchAllTeams(args.cursor, args.take);
-    return teams;
-  }
-  @ResolveField(() => Team, {
-    description: 'Returns a team info by ID when requested by Admin',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async teamInfo(
-    @Parent() admin: Admin,
-    @Args({
-      name: 'teamID',
-      type: () => ID,
-      description: 'Team ID for which info to fetch',
-    })
-    teamID: string,
-  ): Promise<Team> {
-    const team = await this.adminService.getTeamInfo(teamID);
-    if (E.isLeft(team)) throwErr(team.left);
-    return team.right;
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return count of all the members in a team',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async membersCountInTeam(
-    @Parent() admin: Admin,
-    @Args({
-      name: 'teamID',
-      type: () => ID,
-      description: 'Team ID for which team members to fetch',
-      nullable: false,
-    })
-    teamID: string,
-  ): Promise<number> {
-    const teamMembersCount = await this.adminService.membersCountInTeam(teamID);
-    return teamMembersCount;
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return count of all the stored collections in a team',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async collectionCountInTeam(
-    @Parent() admin: Admin,
-    @Args({
-      name: 'teamID',
-      type: () => ID,
-      description: 'Team ID for which team members to fetch',
-    })
-    teamID: string,
-  ): Promise<number> {
-    const teamCollCount = await this.adminService.collectionCountInTeam(teamID);
-    return teamCollCount;
-  }
-  @ResolveField(() => Number, {
-    description: 'Return count of all the stored requests in a team',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async requestCountInTeam(
-    @Parent() admin: Admin,
-    @Args({
-      name: 'teamID',
-      type: () => ID,
-      description: 'Team ID for which team members to fetch',
-    })
-    teamID: string,
-  ): Promise<number> {
-    const teamReqCount = await this.adminService.requestCountInTeam(teamID);
-    return teamReqCount;
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return count of all the stored environments in a team',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async environmentCountInTeam(
-    @Parent() admin: Admin,
-    @Args({
-      name: 'teamID',
-      type: () => ID,
-      description: 'Team ID for which team members to fetch',
-    })
-    teamID: string,
-  ): Promise<number> {
-    const envsCount = await this.adminService.environmentCountInTeam(teamID);
-    return envsCount;
-  }
-
-  @ResolveField(() => [TeamInvitation], {
-    description: 'Return all the pending invitations in a team',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async pendingInvitationCountInTeam(
-    @Parent() admin: Admin,
-    @Args({
-      name: 'teamID',
-      type: () => ID,
-      description: 'Team ID for which team members to fetch',
-    })
-    teamID: string,
-  ) {
-    const invitations = await this.adminService.pendingInvitationCountInTeam(
-      teamID,
-    );
-    return invitations;
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return total number of Users in organization',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async usersCount() {
-    return this.adminService.getUsersCount();
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return total number of Teams in organization',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async teamsCount() {
-    return this.adminService.getTeamsCount();
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return total number of Team Collections in organization',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async teamCollectionsCount() {
-    return this.adminService.getTeamCollectionsCount();
-  }
-
-  @ResolveField(() => Number, {
-    description: 'Return total number of Team Requests in organization',
-    deprecationReason: 'Use `infra` query instead',
-  })
-  async teamRequestsCount() {
-    return this.adminService.getTeamRequestsCount();
-  }
-
   /* Mutations */
 
   @Mutation(() => InvitedUser, {
@@ -269,8 +70,26 @@ export class AdminResolver {
     return invitedUser.right;
   }
 
+  @Mutation(() => Boolean, {
+    description: 'Revoke a user invites by invitee emails',
+  })
+  @UseGuards(GqlAuthGuard, GqlAdminGuard)
+  async revokeUserInvitationsByAdmin(
+    @Args({
+      name: 'inviteeEmails',
+      description: 'Invitee Emails',
+      type: () => [String],
+    })
+    inviteeEmails: string[],
+  ): Promise<boolean> {
+    const invite = await this.adminService.revokeUserInvitations(inviteeEmails);
+    if (E.isLeft(invite)) throwErr(invite.left);
+    return invite.right;
+  }
+
   @Mutation(() => Boolean, {
     description: 'Delete an user account from infra',
+    deprecationReason: 'Use removeUsersByAdmin instead',
   })
   @UseGuards(GqlAuthGuard, GqlAdminGuard)
   async removeUserByAdmin(
@@ -281,12 +100,33 @@ export class AdminResolver {
     })
     userUID: string,
   ): Promise<boolean> {
-    const invitedUser = await this.adminService.removeUserAccount(userUID);
-    if (E.isLeft(invitedUser)) throwErr(invitedUser.left);
-    return invitedUser.right;
+    const removedUser = await this.adminService.removeUserAccount(userUID);
+    if (E.isLeft(removedUser)) throwErr(removedUser.left);
+    return removedUser.right;
   }
+
+  @Mutation(() => [UserDeletionResult], {
+    description: 'Delete user accounts from infra',
+  })
+  @UseGuards(GqlAuthGuard, GqlAdminGuard)
+  async removeUsersByAdmin(
+    @Args({
+      name: 'userUIDs',
+      description: 'users UID',
+      type: () => [ID],
+    })
+    userUIDs: string[],
+  ): Promise<UserDeletionResult[]> {
+    const deletionResults = await this.adminService.removeUserAccounts(
+      userUIDs,
+    );
+    if (E.isLeft(deletionResults)) throwErr(deletionResults.left);
+    return deletionResults.right;
+  }
+
   @Mutation(() => Boolean, {
     description: 'Make user an admin',
+    deprecationReason: 'Use makeUsersAdmin instead',
   })
   @UseGuards(GqlAuthGuard, GqlAdminGuard)
   async makeUserAdmin(
@@ -302,8 +142,51 @@ export class AdminResolver {
     return admin.right;
   }
 
+  @Mutation(() => Boolean, {
+    description: 'Make users an admin',
+  })
+  @UseGuards(GqlAuthGuard, GqlAdminGuard)
+  async makeUsersAdmin(
+    @Args({
+      name: 'userUIDs',
+      description: 'users UID',
+      type: () => [ID],
+    })
+    userUIDs: string[],
+  ): Promise<boolean> {
+    const isUpdated = await this.adminService.makeUsersAdmin(userUIDs);
+    if (E.isLeft(isUpdated)) throwErr(isUpdated.left);
+    return isUpdated.right;
+  }
+
+  @Mutation(() => Boolean, {
+    description: 'Update user display name',
+  })
+  @UseGuards(GqlAuthGuard, GqlAdminGuard)
+  async updateUserDisplayNameByAdmin(
+    @Args({
+      name: 'userUID',
+      description: 'users UID',
+      type: () => ID,
+    })
+    userUID: string,
+    @Args({
+      name: 'displayName',
+      description: 'users display name',
+    })
+    displayName: string,
+  ): Promise<boolean> {
+    const isUpdated = await this.adminService.updateUserDisplayName(
+      userUID,
+      displayName,
+    );
+    if (E.isLeft(isUpdated)) throwErr(isUpdated.left);
+    return isUpdated.right;
+  }
+
   @Mutation(() => Boolean, {
     description: 'Remove user as admin',
+    deprecationReason: 'Use demoteUsersByAdmin instead',
   })
   @UseGuards(GqlAuthGuard, GqlAdminGuard)
   async removeUserAsAdmin(
@@ -319,6 +202,23 @@ export class AdminResolver {
     return admin.right;
   }
 
+  @Mutation(() => Boolean, {
+    description: 'Remove users as admin',
+  })
+  @UseGuards(GqlAuthGuard, GqlAdminGuard)
+  async demoteUsersByAdmin(
+    @Args({
+      name: 'userUIDs',
+      description: 'users UID',
+      type: () => [ID],
+    })
+    userUIDs: string[],
+  ): Promise<boolean> {
+    const isUpdated = await this.adminService.demoteUsersByAdmin(userUIDs);
+    if (E.isLeft(isUpdated)) throwErr(isUpdated.left);
+    return isUpdated.right;
+  }
+
   @Mutation(() => Team, {
     description:
       'Create a new team by providing the user uid to nominate as Team owner',

packages/hoppscotch-backend/src/admin/admin.service.spec.ts

@@ -1,7 +1,7 @@
 import { AdminService } from './admin.service';
 import { PubSubService } from '../pubsub/pubsub.service';
 import { mockDeep } from 'jest-mock-extended';
-import { InvitedUsers } from '@prisma/client';
+import { InvitedUsers, User as DbUser } from '@prisma/client';
 import { UserService } from '../user/user.service';
 import { TeamService } from '../team/team.service';
 import { TeamEnvironmentsService } from '../team-environments/team-environments.service';
@@ -13,10 +13,15 @@ import { PrismaService } from 'src/prisma/prisma.service';
 import {
   DUPLICATE_EMAIL,
   INVALID_EMAIL,
+  ONLY_ONE_ADMIN_ACCOUNT,
   USER_ALREADY_INVITED,
+  USER_INVITATION_DELETION_FAILED,
+  USER_NOT_FOUND,
 } from '../errors';
 import { ShortcodeService } from 'src/shortcode/shortcode.service';
 import { ConfigService } from '@nestjs/config';
+import { OffsetPaginationArgs } from 'src/types/input-types.args';
+import * as E from 'fp-ts/Either';
 
 const mockPrisma = mockDeep<PrismaService>();
 const mockPubSub = mockDeep<PubSubService>();
@@ -58,20 +63,87 @@ const invitedUsers: InvitedUsers[] = [
     invitedOn: new Date(),
   },
 ];
+
+const dbAdminUsers: DbUser[] = [
+  {
+    uid: 'uid 1',
+    displayName: 'displayName',
+    email: 'email@email.com',
+    photoURL: 'photoURL',
+    isAdmin: true,
+    refreshToken: 'refreshToken',
+    currentRESTSession: '',
+    currentGQLSession: '',
+    createdOn: new Date(),
+  },
+  {
+    uid: 'uid 2',
+    displayName: 'displayName',
+    email: 'email@email.com',
+    photoURL: 'photoURL',
+    isAdmin: true,
+    refreshToken: 'refreshToken',
+    currentRESTSession: '',
+    currentGQLSession: '',
+    createdOn: new Date(),
+  },
+];
+const dbNonAminUser: DbUser = {
+  uid: 'uid 3',
+  displayName: 'displayName',
+  email: 'email@email.com',
+  photoURL: 'photoURL',
+  isAdmin: false,
+  refreshToken: 'refreshToken',
+  currentRESTSession: '',
+  currentGQLSession: '',
+  createdOn: new Date(),
+};
+
 describe('AdminService', () => {
   describe('fetchInvitedUsers', () => {
-    test('should resolve right and return an array of invited users', async () => {
+    test('should resolve right and apply pagination correctly', async () => {
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
       // @ts-ignore
+      mockPrisma.user.findMany.mockResolvedValue([dbAdminUsers[0]]);
+      // @ts-ignore
       mockPrisma.invitedUsers.findMany.mockResolvedValue(invitedUsers);
 
-      const results = await adminService.fetchInvitedUsers();
+      const paginationArgs: OffsetPaginationArgs = { take: 5, skip: 2 };
+      const results = await adminService.fetchInvitedUsers(paginationArgs);
+
+      expect(mockPrisma.invitedUsers.findMany).toHaveBeenCalledWith({
+        ...paginationArgs,
+        orderBy: {
+          invitedOn: 'desc',
+        },
+        where: {
+          NOT: {
+            inviteeEmail: {
+              in: [dbAdminUsers[0].email],
+            },
+          },
+        },
+      });
+    });
+    test('should resolve right and return an array of invited users', async () => {
+      const paginationArgs: OffsetPaginationArgs = { take: 10, skip: 0 };
+
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore
+      mockPrisma.user.findMany.mockResolvedValue([dbAdminUsers[0]]);
+      // @ts-ignore
+      mockPrisma.invitedUsers.findMany.mockResolvedValue(invitedUsers);
+
+      const results = await adminService.fetchInvitedUsers(paginationArgs);
       expect(results).toEqual(invitedUsers);
     });
     test('should resolve left and return an empty array if invited users not found', async () => {
+      const paginationArgs: OffsetPaginationArgs = { take: 10, skip: 0 };
+
       mockPrisma.invitedUsers.findMany.mockResolvedValue([]);
 
-      const results = await adminService.fetchInvitedUsers();
+      const results = await adminService.fetchInvitedUsers(paginationArgs);
       expect(results).toEqual([]);
     });
   });
@@ -134,6 +206,58 @@ describe('AdminService', () => {
     });
   });
 
+  describe('revokeUserInvitations', () => {
+    test('should resolve left and return error if email not invited', async () => {
+      mockPrisma.invitedUsers.deleteMany.mockRejectedValueOnce(
+        'RecordNotFound',
+      );
+
+      const result = await adminService.revokeUserInvitations([
+        'test@gmail.com',
+      ]);
+
+      expect(result).toEqualLeft(USER_INVITATION_DELETION_FAILED);
+    });
+
+    test('should resolve right and return deleted invitee email', async () => {
+      const adminUid = 'adminUid';
+      mockPrisma.invitedUsers.deleteMany.mockResolvedValueOnce({ count: 1 });
+
+      const result = await adminService.revokeUserInvitations([
+        invitedUsers[0].inviteeEmail,
+      ]);
+
+      expect(mockPrisma.invitedUsers.deleteMany).toHaveBeenCalledWith({
+        where: {
+          inviteeEmail: { in: [invitedUsers[0].inviteeEmail] },
+        },
+      });
+      expect(result).toEqualRight(true);
+    });
+  });
+
+  describe('removeUsersAsAdmin', () => {
+    test('should resolve right and make admins to users', async () => {
+      mockUserService.fetchAdminUsers.mockResolvedValueOnce(dbAdminUsers);
+      mockUserService.removeUsersAsAdmin.mockResolvedValueOnce(E.right(true));
+
+      return expect(
+        await adminService.demoteUsersByAdmin([dbAdminUsers[0].uid]),
+      ).toEqualRight(true);
+    });
+
+    test('should resolve left and return error if only one admin in the infra', async () => {
+      mockUserService.fetchAdminUsers.mockResolvedValueOnce(dbAdminUsers);
+      mockUserService.removeUsersAsAdmin.mockResolvedValueOnce(E.right(true));
+
+      return expect(
+        await adminService.demoteUsersByAdmin(
+          dbAdminUsers.map((user) => user.uid),
+        ),
+      ).toEqualLeft(ONLY_ONE_ADMIN_ACCOUNT);
+    });
+  });
+
   describe('getUsersCount', () => {
     test('should return count of all users in the organization', async () => {
       mockUserService.getUsersCount.mockResolvedValueOnce(10);

packages/hoppscotch-backend/src/admin/admin.service.ts

@@ -6,13 +6,16 @@ import * as E from 'fp-ts/Either';
 import * as O from 'fp-ts/Option';
 import { validateEmail } from '../utils';
 import {
+  ADMIN_CAN_NOT_BE_DELETED,
   DUPLICATE_EMAIL,
   EMAIL_FAILED,
   INVALID_EMAIL,
   ONLY_ONE_ADMIN_ACCOUNT,
   TEAM_INVITE_ALREADY_MEMBER,
   TEAM_INVITE_NO_INVITE_FOUND,
+  USERS_NOT_FOUND,
   USER_ALREADY_INVITED,
+  USER_INVITATION_DELETION_FAILED,
   USER_IS_ADMIN,
   USER_NOT_FOUND,
 } from '../errors';
@@ -26,6 +29,8 @@ import { TeamInvitationService } from '../team-invitation/team-invitation.servic
 import { TeamMemberRole } from '../team/team.model';
 import { ShortcodeService } from 'src/shortcode/shortcode.service';
 import { ConfigService } from '@nestjs/config';
+import { OffsetPaginationArgs } from 'src/types/input-types.args';
+import { UserDeletionResult } from 'src/user/user.model';
 
 @Injectable()
 export class AdminService {
@@ -48,12 +53,30 @@ export class AdminService {
    * @param cursorID Users uid
    * @param take number of users to fetch
    * @returns an Either of array of user or error
+   * @deprecated use fetchUsersV2 instead
    */
   async fetchUsers(cursorID: string, take: number) {
     const allUsers = await this.userService.fetchAllUsers(cursorID, take);
     return allUsers;
   }
 
+  /**
+   * Fetch all the users in the infra.
+   * @param searchString search on users displayName or email
+   * @param paginationOption pagination options
+   * @returns an Either of array of user or error
+   */
+  async fetchUsersV2(
+    searchString: string,
+    paginationOption: OffsetPaginationArgs,
+  ) {
+    const allUsers = await this.userService.fetchAllUsersV2(
+      searchString,
+      paginationOption,
+    );
+    return allUsers;
+  }
+
   /**
    * Invite a user to join the infra.
    * @param adminUID Admin's UID
@@ -110,14 +133,68 @@ export class AdminService {
     return E.right(invitedUser);
   }
 
+  /**
+   * Update the display name of a user
+   * @param userUid Who's display name is being updated
+   * @param displayName New display name of the user
+   * @returns an Either of boolean or error
+   */
+  async updateUserDisplayName(userUid: string, displayName: string) {
+    const updatedUser = await this.userService.updateUserDisplayName(
+      userUid,
+      displayName,
+    );
+    if (E.isLeft(updatedUser)) return E.left(updatedUser.left);
+
+    return E.right(true);
+  }
+
+  /**
+   * Revoke infra level user invitations
+   * @param inviteeEmails Invitee's emails
+   * @param adminUid Admin Uid
+   * @returns an Either of boolean or error string
+   */
+  async revokeUserInvitations(inviteeEmails: string[]) {
+    try {
+      await this.prisma.invitedUsers.deleteMany({
+        where: {
+          inviteeEmail: { in: inviteeEmails },
+        },
+      });
+      return E.right(true);
+    } catch (error) {
+      return E.left(USER_INVITATION_DELETION_FAILED);
+    }
+  }
+
   /**
    * Fetch the list of invited users by the admin.
    * @returns an Either of array of `InvitedUser` object or error
    */
-  async fetchInvitedUsers() {
-    const invitedUsers = await this.prisma.invitedUsers.findMany();
+  async fetchInvitedUsers(paginationOption: OffsetPaginationArgs) {
+    const userEmailObjs = await this.prisma.user.findMany({
+      select: {
+        email: true,
+      },
+    });
 
-    const users: InvitedUser[] = invitedUsers.map(
+    const pendingInvitedUsers = await this.prisma.invitedUsers.findMany({
+      take: paginationOption.take,
+      skip: paginationOption.skip,
+      orderBy: {
+        invitedOn: 'desc',
+      },
+      where: {
+        NOT: {
+          inviteeEmail: {
+            in: userEmailObjs.map((user) => user.email),
+          },
+        },
+      },
+    });
+
+    const users: InvitedUser[] = pendingInvitedUsers.map(
       (user) => <InvitedUser>{ ...user },
     );
 
@@ -337,6 +414,7 @@ export class AdminService {
    * Remove a user account by UID
    * @param userUid User UID
    * @returns an Either of boolean or error
+   * @deprecated use removeUserAccounts instead
    */
   async removeUserAccount(userUid: string) {
     const user = await this.userService.findUserById(userUid);
@@ -349,10 +427,73 @@ export class AdminService {
     return E.right(delUser.right);
   }
 
+  /**
+   * Remove user (not Admin) accounts by UIDs
+   * @param userUIDs User UIDs
+   * @returns an Either of boolean or error
+   */
+  async removeUserAccounts(userUIDs: string[]) {
+    const userDeleteResult: UserDeletionResult[] = [];
+
+    // step 1: fetch all users
+    const allUsersList = await this.userService.findUsersByIds(userUIDs);
+    if (allUsersList.length === 0) return E.left(USERS_NOT_FOUND);
+
+    // step 2: admin user can not be deleted without removing admin status/role
+    allUsersList.forEach((user) => {
+      if (user.isAdmin) {
+        userDeleteResult.push({
+          userUID: user.uid,
+          isDeleted: false,
+          errorMessage: ADMIN_CAN_NOT_BE_DELETED,
+        });
+      }
+    });
+
+    const nonAdminUsers = allUsersList.filter((user) => !user.isAdmin);
+    let deletedUserEmails: string[] = [];
+
+    // step 3: delete non-admin users
+    const deletionPromises = nonAdminUsers.map((user) => {
+      return this.userService
+        .deleteUserByUID(user)()
+        .then((res) => {
+          if (E.isLeft(res)) {
+            return {
+              userUID: user.uid,
+              isDeleted: false,
+              errorMessage: res.left,
+            } as UserDeletionResult;
+          }
+
+          deletedUserEmails.push(user.email);
+          return {
+            userUID: user.uid,
+            isDeleted: true,
+            errorMessage: null,
+          } as UserDeletionResult;
+        });
+    });
+    const promiseResult = await Promise.allSettled(deletionPromises);
+
+    // step 4: revoke all the invites sent to the deleted users
+    await this.revokeUserInvitations(deletedUserEmails);
+
+    // step 5: return the result
+    promiseResult.forEach((result) => {
+      if (result.status === 'fulfilled') {
+        userDeleteResult.push(result.value);
+      }
+    });
+
+    return E.right(userDeleteResult);
+  }
+
   /**
    * Make a user an admin
    * @param userUid User UID
    * @returns an Either of boolean or error
+   * @deprecated use makeUsersAdmin instead
    */
   async makeUserAdmin(userUID: string) {
     const admin = await this.userService.makeAdmin(userUID);
@@ -360,10 +501,22 @@ export class AdminService {
     return E.right(true);
   }
 
+  /**
+   * Make users to admin
+   * @param userUid User UIDs
+   * @returns an Either of boolean or error
+   */
+  async makeUsersAdmin(userUIDs: string[]) {
+    const isUpdated = await this.userService.makeAdmins(userUIDs);
+    if (E.isLeft(isUpdated)) return E.left(isUpdated.left);
+    return E.right(true);
+  }
+
   /**
    * Remove user as admin
    * @param userUid User UID
    * @returns an Either of boolean or error
+   * @deprecated use demoteUsersByAdmin instead
    */
   async removeUserAsAdmin(userUID: string) {
     const adminUsers = await this.userService.fetchAdminUsers();
@@ -374,6 +527,26 @@ export class AdminService {
     return E.right(true);
   }
 
+  /**
+   * Remove users as admin
+   * @param userUIDs User UIDs
+   * @returns an Either of boolean or error
+   */
+  async demoteUsersByAdmin(userUIDs: string[]) {
+    const adminUsers = await this.userService.fetchAdminUsers();
+
+    const remainingAdmins = adminUsers.filter(
+      (adminUser) => !userUIDs.includes(adminUser.uid),
+    );
+    if (remainingAdmins.length < 1) {
+      return E.left(ONLY_ONE_ADMIN_ACCOUNT);
+    }
+
+    const isUpdated = await this.userService.removeUsersAsAdmin(userUIDs);
+    if (E.isLeft(isUpdated)) return E.left(isUpdated.left);
+    return E.right(isUpdated.right);
+  }
+
   /**
    * Fetch list of all the Users in org
    * @returns number of users in the org

packages/hoppscotch-backend/src/admin/infra.resolver.ts

@@ -17,7 +17,10 @@ import { AuthUser } from 'src/types/AuthUser';
 import { throwErr } from 'src/utils';
 import * as E from 'fp-ts/Either';
 import { Admin } from './admin.model';
-import { PaginationArgs } from 'src/types/input-types.args';
+import {
+  OffsetPaginationArgs,
+  PaginationArgs,
+} from 'src/types/input-types.args';
 import { InvitedUser } from './invited-user.model';
 import { Team } from 'src/team/team.model';
 import { TeamInvitation } from 'src/team-invitation/team-invitation.model';
@@ -76,6 +79,7 @@ export class InfraResolver {
 
   @ResolveField(() => [User], {
     description: 'Returns a list of all the users in infra',
+    deprecationReason: 'Use allUsersV2 instead',
   })
   @UseGuards(GqlAuthGuard, GqlAdminGuard)
   async allUsers(@Args() args: PaginationArgs): Promise<AuthUser[]> {
@@ -83,11 +87,33 @@ export class InfraResolver {
     return users;
   }
 
+  @ResolveField(() => [User], {
+    description: 'Returns a list of all the users in infra',
+  })
+  @UseGuards(GqlAuthGuard, GqlAdminGuard)
+  async allUsersV2(
+    @Args({
+      name: 'searchString',
+      nullable: true,
+      description: 'Search on users displayName or email',
+    })
+    searchString: string,
+    @Args() paginationOption: OffsetPaginationArgs,
+  ): Promise<AuthUser[]> {
+    const users = await this.adminService.fetchUsersV2(
+      searchString,
+      paginationOption,
+    );
+    return users;
+  }
+
   @ResolveField(() => [InvitedUser], {
     description: 'Returns a list of all the invited users',
   })
-  async invitedUsers(): Promise<InvitedUser[]> {
-    const users = await this.adminService.fetchInvitedUsers();
+  async invitedUsers(
+    @Args() args: OffsetPaginationArgs,
+  ): Promise<InvitedUser[]> {
+    const users = await this.adminService.fetchInvitedUsers(args);
     return users;
   }
 
@@ -306,7 +332,9 @@ export class InfraResolver {
     })
     providerInfo: EnableAndDisableSSOArgs[],
   ) {
-    const isUpdated = await this.infraConfigService.enableAndDisableSSO(providerInfo);
+    const isUpdated = await this.infraConfigService.enableAndDisableSSO(
+      providerInfo,
+    );
     if (E.isLeft(isUpdated)) throwErr(isUpdated.left);
 
     return true;

packages/hoppscotch-backend/src/errors.ts

@@ -10,6 +10,14 @@ export const DUPLICATE_EMAIL = 'email/both_emails_cannot_be_same' as const;
 export const ONLY_ONE_ADMIN_ACCOUNT =
   'admin/only_one_admin_account_found' as const;
 
+/**
+ * Admin user can not be deleted
+ * To delete the admin user, first make the Admin user a normal user
+ * (AdminService)
+ */
+export const ADMIN_CAN_NOT_BE_DELETED =
+  'admin/admin_can_not_be_deleted' as const;
+
 /**
  * Token Authorization failed (Check 'Authorization' Header)
  * (GqlAuthGuard)
@@ -99,6 +107,13 @@ export const USER_IS_OWNER = 'user/is_owner' as const;
  */
 export const USER_IS_ADMIN = 'user/is_admin' as const;
 
+/**
+ * User invite deletion failure error due to invitation not found
+ * (AdminService)
+ */
+export const USER_INVITATION_DELETION_FAILED =
+  'user/invitation_deletion_failed' as const;
+
 /**
  * Teams not found
  * (TeamsService)

packages/hoppscotch-backend/src/types/input-types.args.ts

@@ -17,3 +17,21 @@ export class PaginationArgs {
   })
   take: number;
 }
+
+@ArgsType()
+@InputType()
+export class OffsetPaginationArgs {
+  @Field({
+    nullable: true,
+    defaultValue: 0,
+    description: 'Number of items to skip',
+  })
+  skip: number;
+
+  @Field({
+    nullable: true,
+    defaultValue: 10,
+    description: 'Number of items to fetch',
+  })
+  take: number;
+}

packages/hoppscotch-backend/src/user/user.model.ts

@@ -56,3 +56,22 @@ export enum SessionType {
 registerEnumType(SessionType, {
   name: 'SessionType',
 });
+
+@ObjectType()
+export class UserDeletionResult {
+  @Field(() => ID, {
+    description: 'UID of the user',
+  })
+  userUID: string;
+
+  @Field(() => Boolean, {
+    description: 'Flag to determine if user deletion was successful or not',
+  })
+  isDeleted: Boolean;
+
+  @Field({
+    nullable: true,
+    description: 'Error message if user deletion was not successful',
+  })
+  errorMessage: String;
+}

packages/hoppscotch-backend/src/user/user.service.spec.ts

@@ -1,4 +1,4 @@
-import { JSON_INVALID, USER_NOT_FOUND } from 'src/errors';
+import { JSON_INVALID, USERS_NOT_FOUND, USER_NOT_FOUND } from 'src/errors';
 import { mockDeep, mockReset } from 'jest-mock-extended';
 import { PrismaService } from 'src/prisma/prisma.service';
 import { AuthUser } from 'src/types/AuthUser';
@@ -176,6 +176,26 @@ describe('UserService', () => {
     });
   });
 
+  describe('findUsersByIds', () => {
+    test('should successfully return users given valid user UIDs', async () => {
+      mockPrisma.user.findMany.mockResolvedValueOnce(users);
+
+      const result = await userService.findUsersByIds([
+        '123344',
+        '5555',
+        '6666',
+      ]);
+      expect(result).toEqual(users);
+    });
+
+    test('should return empty array of users given a invalid user UIDs', async () => {
+      mockPrisma.user.findMany.mockResolvedValueOnce([]);
+
+      const result = await userService.findUsersByIds(['sdcvbdbr']);
+      expect(result).toEqual([]);
+    });
+  });
+
   describe('createUserViaMagicLink', () => {
     test('should successfully create user and account for magic-link given valid inputs', async () => {
       mockPrisma.user.create.mockResolvedValueOnce(user);
@@ -414,6 +434,54 @@ describe('UserService', () => {
     });
   });
 
+  describe('updateUserDisplayName', () => {
+    test('should resolve right and update user display name', async () => {
+      const newDisplayName = 'New Name';
+      mockPrisma.user.update.mockResolvedValueOnce({
+        ...user,
+        displayName: newDisplayName,
+      });
+
+      const result = await userService.updateUserDisplayName(
+        user.uid,
+        newDisplayName,
+      );
+      expect(result).toEqualRight({
+        ...user,
+        displayName: newDisplayName,
+        currentGQLSession: JSON.stringify(user.currentGQLSession),
+        currentRESTSession: JSON.stringify(user.currentRESTSession),
+      });
+    });
+    test('should resolve right and publish user updated subscription', async () => {
+      const newDisplayName = 'New Name';
+      mockPrisma.user.update.mockResolvedValueOnce({
+        ...user,
+        displayName: newDisplayName,
+      });
+
+      await userService.updateUserDisplayName(user.uid, user.displayName);
+      expect(mockPubSub.publish).toHaveBeenCalledWith(
+        `user/${user.uid}/updated`,
+        {
+          ...user,
+          displayName: newDisplayName,
+          currentGQLSession: JSON.stringify(user.currentGQLSession),
+          currentRESTSession: JSON.stringify(user.currentRESTSession),
+        },
+      );
+    });
+    test('should resolve left and error when invalid user uid is passed', async () => {
+      mockPrisma.user.update.mockRejectedValueOnce('NotFoundError');
+
+      const result = await userService.updateUserDisplayName(
+        'invalidUserUid',
+        user.displayName,
+      );
+      expect(result).toEqualLeft(USER_NOT_FOUND);
+    });
+  });
+
   describe('fetchAllUsers', () => {
     test('should resolve right and return 20 users when cursor is null', async () => {
       mockPrisma.user.findMany.mockResolvedValueOnce(users);
@@ -435,6 +503,36 @@ describe('UserService', () => {
     });
   });
 
+  describe('fetchAllUsersV2', () => {
+    test('should resolve right and return first 20 users when searchString is null', async () => {
+      mockPrisma.user.findMany.mockResolvedValueOnce(users);
+
+      const result = await userService.fetchAllUsersV2(null, {
+        take: 20,
+        skip: 0,
+      });
+      expect(result).toEqual(users);
+    });
+    test('should resolve right and return next 20 users when searchString is provided', async () => {
+      mockPrisma.user.findMany.mockResolvedValueOnce(users);
+
+      const result = await userService.fetchAllUsersV2('.com', {
+        take: 20,
+        skip: 0,
+      });
+      expect(result).toEqual(users);
+    });
+    test('should resolve left and return an empty array when users not found', async () => {
+      mockPrisma.user.findMany.mockResolvedValueOnce([]);
+
+      const result = await userService.fetchAllUsersV2('Unknown entry', {
+        take: 20,
+        skip: 0,
+      });
+      expect(result).toEqual([]);
+    });
+  });
+
   describe('fetchAdminUsers', () => {
     test('should return a list of admin users', async () => {
       mockPrisma.user.findMany.mockResolvedValueOnce(adminUsers);
@@ -556,4 +654,17 @@ describe('UserService', () => {
       expect(result).toEqual(10);
     });
   });
+
+  describe('removeUsersAsAdmin', () => {
+    test('should resolve right and return true for valid user UIDs', async () => {
+      mockPrisma.user.updateMany.mockResolvedValueOnce({ count: 1 });
+      const result = await userService.removeUsersAsAdmin(['123344']);
+      expect(result).toEqualRight(true);
+    });
+    test('should resolve right and return false for invalid user UIDs', async () => {
+      mockPrisma.user.updateMany.mockResolvedValueOnce({ count: 0 });
+      const result = await userService.removeUsersAsAdmin(['123344']);
+      expect(result).toEqualLeft(USERS_NOT_FOUND);
+    });
+  });
 });

packages/hoppscotch-backend/src/user/user.service.ts

@@ -8,13 +8,14 @@ import * as T from 'fp-ts/Task';
 import * as A from 'fp-ts/Array';
 import { pipe, constVoid } from 'fp-ts/function';
 import { AuthUser } from 'src/types/AuthUser';
-import { USER_NOT_FOUND } from 'src/errors';
+import { USERS_NOT_FOUND, USER_NOT_FOUND } from 'src/errors';
 import { SessionType, User } from './user.model';
 import { USER_UPDATE_FAILED } from 'src/errors';
 import { PubSubService } from 'src/pubsub/pubsub.service';
 import { stringToJson, taskEitherValidateArraySeq } from 'src/utils';
 import { UserDataHandler } from './user.data.handler';
 import { User as DbUser } from '@prisma/client';
+import { OffsetPaginationArgs } from 'src/types/input-types.args';
 
 @Injectable()
 export class UserService {
@@ -88,6 +89,20 @@ export class UserService {
     }
   }
 
+  /**
+   * Find users with given IDs
+   * @param userUIDs User IDs
+   * @returns Array of found Users
+   */
+  async findUsersByIds(userUIDs: string[]): Promise<AuthUser[]> {
+    const users = await this.prisma.user.findMany({
+      where: {
+        uid: { in: userUIDs },
+      },
+    });
+    return users;
+  }
+
   /**
    * Update User with new generated hashed refresh token
    *
@@ -269,6 +284,30 @@ export class UserService {
     }
   }
 
+  /**
+   * Update a user's data
+   * @param userUID User UID
+   * @param displayName User's displayName
+   * @returns a Either of User or error
+   */
+  async updateUserDisplayName(userUID: string, displayName: string) {
+    try {
+      const dbUpdatedUser = await this.prisma.user.update({
+        where: { uid: userUID },
+        data: { displayName },
+      });
+
+      const updatedUser = this.convertDbUserToUser(dbUpdatedUser);
+
+      // Publish subscription for user updates
+      await this.pubsub.publish(`user/${updatedUser.uid}/updated`, updatedUser);
+
+      return E.right(updatedUser);
+    } catch (error) {
+      return E.left(USER_NOT_FOUND);
+    }
+  }
+
   /**
    * Validate and parse currentRESTSession and currentGQLSession
    * @param sessionData string of the session
@@ -286,6 +325,7 @@ export class UserService {
    * @param cursorID string of userUID or null
    * @param take number of users to query
    * @returns an array of `User` object
+   * @deprecated use fetchAllUsersV2 instead
    */
   async fetchAllUsers(cursorID: string, take: number) {
     const fetchedUsers = await this.prisma.user.findMany({
@@ -296,6 +336,43 @@ export class UserService {
     return fetchedUsers;
   }
 
+  /**
+   * Fetch all the users in the `User` table based on cursor
+   * @param searchString search on user's displayName or email
+   * @param paginationOption pagination options
+   * @returns an array of `User` object
+   */
+  async fetchAllUsersV2(
+    searchString: string,
+    paginationOption: OffsetPaginationArgs,
+  ) {
+    const fetchedUsers = await this.prisma.user.findMany({
+      skip: paginationOption.skip,
+      take: paginationOption.take,
+      where: searchString
+        ? {
+            OR: [
+              {
+                displayName: {
+                  contains: searchString,
+                  mode: 'insensitive',
+                },
+              },
+              {
+                email: {
+                  contains: searchString,
+                  mode: 'insensitive',
+                },
+              },
+            ],
+          }
+        : undefined,
+      orderBy: [{ isAdmin: 'desc' }, { displayName: 'asc' }],
+    });
+
+    return fetchedUsers;
+  }
+
   /**
    * Fetch the number of users in db
    * @returns a count (Int) of user records in DB
@@ -326,6 +403,23 @@ export class UserService {
     }
   }
 
+  /**
+   * Change users to admins by toggling isAdmin param to true
+   * @param userUID user UIDs
+   * @returns a Either of true or error
+   */
+  async makeAdmins(userUIDs: string[]) {
+    try {
+      await this.prisma.user.updateMany({
+        where: { uid: { in: userUIDs } },
+        data: { isAdmin: true },
+      });
+      return E.right(true);
+    } catch (error) {
+      return E.left(USER_UPDATE_FAILED);
+    }
+  }
+
   /**
    * Fetch all the admin users
    * @returns an array of admin users
@@ -444,4 +538,22 @@ export class UserService {
       return E.left(USER_NOT_FOUND);
     }
   }
+
+  /**
+   * Change users from an admin by toggling isAdmin param to false
+   * @param userUIDs user UIDs
+   * @returns a Either of true or error
+   */
+  async removeUsersAsAdmin(userUIDs: string[]) {
+    const data = await this.prisma.user.updateMany({
+      where: { uid: { in: userUIDs } },
+      data: { isAdmin: false },
+    });
+
+    if (data.count === 0) {
+      return E.left(USERS_NOT_FOUND);
+    }
+
+    return E.right(true);
+  }
 }