backendConfig.tsx

backendConfig.tsx

import ThirdPartyEmailPasswordNode from 'supertokens-node/recipe/thirdpartyemailpassword'
import SessionNode from 'supertokens-node/recipe/session'
import { appInfo } from './appInfo'
import {TypeInput} from 'supertokens-node/lib/build/types'
const axios = require('axios');

export let backendConfig = () => {
  return {
    framework: 'express',
    supertokens: {
      // connectionURI: 'https://try.supertokens.io',
    },
    appInfo,
    recipeList: [
      ThirdPartyEmailPasswordNode.init({
        providers: [
          {
            id: "linkedin",
            // : TypeProviderGetResponse 
            get: (redirectURI, authCodeFromRequest) => {
              return {
                accessTokenAPI: {
                  // this contains info about the token endpoint which exchanges the auth code with the access token and profile info.
                  url: "https://www.linkedin.com/oauth/v2/accessToken",
                  params: {
                    // example post params
                    client_id: process.env.LINKEDIN_CLIENT_ID,
                    client_secret: process.env.LINKEDIN_CLIENT_SECRET,
                    grant_type: "authorization_code",
                    redirect_uri: redirectURI, // process.env.LINKEDIN_REDIRECT_URI
                    code: authCodeFromRequest,
                    //...
                  }
                },
                authorisationRedirect: {
                  // this contains info about forming the authorisation redirect URL without the state params and without the redirect_uri param
                  url: "https://www.linkedin.com/oauth/v2/authorization",
                  params: {
                      client_id: process.env.LINKEDIN_CLIENT_ID,
                      scope: "r_liteprofile r_emailaddress",
                      response_type: "code",
                      // client_secret: process.env.LINKEDIN_CLIENT_SECRET,
                      redirect_uri: "http://localhost:3000/auth/callback/linkedin",
                    }
                },
                getClientId: () => {
                  return process.env.LINKEDIN_CLIENT_ID;
                },
                getProfileInfo: async (accessTokenAPIResponse) => {
                  /* accessTokenAPIResponse is the JSON response from the accessTokenAPI POST call. Using this, you need to return an object of the following type:*/
                  let accessToken = accessTokenAPIResponse.access_token;
                  let authHeader = `Bearer ${accessToken}`;
                  let response = await axios({
                      method: "get",
                      url: "https://api.linkedin.com/v2/me",
                      params: {
                          alt: "json",
                      },
                      headers: {
                          Authorization: authHeader,
                      },
                  });
                  let userInfo = response.data;
                  let id = userInfo.id;
                  return { id }
                }
              }
            }
          }
        ],
      }),
      SessionNode.init(),
    ],
    isInServerlessEnv: true,
  } as TypeInput
}