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Back-end Script

On your server, you should create an end point (called by your front-end) which will create a session for a user. To create that user session you will need to call the Mindset SDK Users API (see the SDK Users API documentation for more details). You must provide an externalId or a userEmail parameter so that the Mindset system can identify the user.
You can learn more about the user email address : User Handling
The SDK Users API returns a {authToken} which has to be used in the Front-end script (a getAuthToken() method passed to the mindset.init()). See the doc for more details about Authentication flow.

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Below an example of an EXPRESS API script

import express from "express";
import axios from "axios";

const YOUR-MINDSET-API-KEY = 'YOUR-MINDSET-API-KEY' 
const MINDSET-API-HOST = 'MINDSET-API-HOST'
const YOUR-APP-UID = 'YOUR-APP-UID'

const app = express();

app.get("/api/getusertoken", async (req, res) => {
  const { currentUserId } = getcurrentuser(); // A method to get the current user ID from your session or database
  const externalId = "userx123456" // You can use the currentUserId to get the externalId or userEmail from your database or session store

  try {
    const embedUserToken: any = await axios.post(
      `https://${MINDSET-API-HOST}/api/v1/appuid/${YOUR-APP-UID}/sdkusers/auth`,
      {
        name: "My User Name", // optional 
        userEmail: "myuser@email.com", // Pass the userEmail if you want to authenticate a user by email as you did previously
        // OR
        externalId: externalId // Pass the externalId if you want to authenticate a user by externalId
      },
      {
        headers: {
            'Content-Type': 'application/json',
            'x-api-key': YOUR-MINDSET-API-KEY
        },
      }
    )
    res.send(embedUserToken.data);
    
  } catch (error: any) {
    console.error(error);
    console.error("Error", error, error.response.status, error.response, error);
    res.status(500).send("Error getting token");
  };
});

export default app;

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Parameters required for your configuration

ParameterDescription
MINDSET-API-HOSTThis URL is provided by the Mindset team.
YOUR-MINDSET-API-KEYThis API KEY can be generated in your Mindset App Admin portal (CONFIGURE > API Management > Generate key).