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Backend Integration

Supported frameworks#

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1) Install#

npm i -s supertokens-node

2) Initialise SuperTokens#

Add the code below to your server's init file.

import supertokens from "supertokens-node";
import Session from "supertokens-node/recipe/session";
import EmailPassword from "supertokens-node/recipe/emailpassword";

framework: "express",
supertokens: {
connectionURI: "",
apiKey: "",
appInfo: {
// learn more about this on
appName: "<YOUR_APP_NAME>",
apiDomain: "<YOUR_API_DOMAIN>",
websiteDomain: "<YOUR_WEBSITE_DOMAIN>",
apiBasePath: "/auth",
websiteBasePath: "/auth",
recipeList: [
EmailPassword.init(), // initializes signin / sign up features
Session.init() // initializes session features

3) Add the SuperTokens APIs & CORS setup#

  • Add the middleware BEFORE all your routes.
  • Add the cors middleware BEFORE the SuperTokens middleware as shown below.
import express from "express";
import cors from "cors";
import supertokens from "supertokens-node";
import { middleware } from "supertokens-node/framework/express";

let app = express();

allowedHeaders: ["content-type", ...supertokens.getAllCORSHeaders()],
credentials: true,

// IMPORTANT: CORS should be before the below line.

// ...your API routes

This middleware adds a few APIs (see all the APIs here):

  • POST /auth/signup: For signing up a user with email & password
  • POST /auth/signin: For signing in a user with email & password

4) Add the SuperTokens error handler#

import express, { Request, Response, NextFunction } from 'express';
import { errorHandler } from "supertokens-node/framework/express";

let app = express();

// ...your API routes

// Add this AFTER all your routes

// your own error handler
app.use((err: unknown, req: Request, res: Response, next: NextFunction) => { /* ... */ });

5) Setup the SuperTokens core#

You need to now setup an instance of the SuperTokens core for your app (that your backend should connect to). You have two options: