backendConfig.js (copied and pasted from walkthrough):

import ThirdPartyEmailPasswordNode from 'supertokens-node/recipe/thirdpartyemailpassword'
import SessionNode from 'supertokens-node/recipe/session'
import { appInfo } from './appInfo'

export const backendConfig = () => {
  return {
    framework: "express",
    supertokens: {
      // These are the connection details of the app you created on supertokens.io
      connectionURI: "https://c6a82c215c7211eca1a76bf0f109bb26-us-east-1.aws.supertokens.io:3572",
      apiKey: "PpdlKfKrcA45ihxkcak=Bfz5CrgeL8",
    },
    appInfo,
    recipeList: [
      ThirdPartyEmailPasswordNode.init({
        providers: [
          // We have provided you with development keys which you can use for testsing.
          // IMPORTANT: Please replace them with your own OAuth keys for production use.
          ThirdPartyEmailPasswordNode.Google({
            clientId: "1060725074195-kmeum4crr01uirfl2op9kd5acmi9jutn.apps.googleusercontent.com",
            clientSecret: "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"
          }),
          ThirdPartyEmailPasswordNode.Github({
            clientId: "467101b197249757c71f",
            clientSecret: "e97051221f4b6426e8fe8d51486396703012f5bd"
          }),
        ],
      }),
      SessionNode.init(),
    ],
    isInServerlessEnv: true,
  }
}