Which UI do you use?

Custom UI

Pre built UI

Creating a new session

How to create a new session

Create a new session after verifying user's credentials in the login API, or after creating a new user in the sign up API.

NodeJS

Important

For other backend frameworks, you can follow our guide on how to spin up a separate server configured with the SuperTokens backend SDK to authenticate requests and issue session tokens.

GoLang

Express

import express from "express";
import Session from "supertokens-node/recipe/session";

let app = express();

app.post("/login", async (req, res) => {

    // verify user's credentials...

    let userId = "userId"; // get from db

    await Session.createNewSession(req, res, userId);

    /* a new session has been created.
     * - an access & refresh token has been attached to the response's cookie
     * - a new row has been inserted into the database for this new session
    */

    res.json({ message: "User logged in!" });
})

Hapi

import Hapi from "@hapi/hapi";
import Session from "supertokens-node/recipe/session";

let server = Hapi.server({ port: 8000 });

server.route({
    path: "/login",
    method: "post",
    handler: async (req, res) => {
        // verify user's credentials...

        let userId = "userId"; // get from db

        await Session.createNewSession(req, res, userId);

        /* a new session has been created.
        * - an access & refresh token has been attached to the response's cookie
        * - a new row has been inserted into the database for this new session
        */
        return res.response({ message: "User logged in!" }).code(200);
    },
});

Fastify

import Fastify from "fastify";
import Session from "supertokens-node/recipe/session";

let fastify = Fastify();

fastify.post("/login", async (req, res) => {

    // verify user's credentials...

    let userId = "userId"; // get from db

    await Session.createNewSession(req, res, userId);

    /* a new session has been created.
     * - an access & refresh token has been attached to the response's cookie
     * - a new row has been inserted into the database for this new session
    */

    res.send({ message: "User logged in!" });
})

Koa

import { middleware } from "supertokens-node/framework/awsLambda"
import Session from "supertokens-node/recipe/session";
import { SessionEvent } from "supertokens-node/framework/awsLambda";

async function login(awsEvent: SessionEvent) {
    // verify user's credentials...

    let userId = "userId"; // get from db

    await Session.createNewSession(awsEvent, awsEvent, userId);

    /* a new session has been created.
     * - an access & refresh token has been attached to the response's cookie
     * - a new row has been inserted into the database for this new session
    */

    return {
        body: JSON.stringify({ message: "User logged in!" }),
        statusCode: 200,
    };
}

exports.handler = middleware(login);

Loopback

import KoaRouter from "koa-router";
import Session from "supertokens-node/recipe/session";

let router = new KoaRouter();

router.post("/login", async (ctx, next) => {

    // verify user's credentials...

    let userId = "userId"; // get from db

    await Session.createNewSession(ctx, ctx, userId);

    /* a new session has been created.
     * - an access & refresh token has been attached to the response's cookie
     * - a new row has been inserted into the database for this new session
    */

    ctx.body = { message: "User logged in!" };
})

AWS Lambda / Netlify

import { inject } from "@loopback/core";
import { RestBindings, MiddlewareContext, post, response } from "@loopback/rest";
import Session from "supertokens-node/recipe/session";

class Login {
    constructor(@inject(RestBindings.Http.CONTEXT) private ctx: MiddlewareContext) { }
    @post("/login")
    @response(200)
    async handler() {
        // verify user's credentials...

        let userId = "userId"; // get from db

        await Session.createNewSession(this.ctx, this.ctx, userId);
        return { message: "User logged in!" };
    }
}

Next.js

import { superTokensNextWrapper } from 'supertokens-node/nextjs'
import { createNewSession } from "supertokens-node/recipe/session";
import { SessionRequest } from "supertokens-node/framework/express";

export default async function superTokens(req: SessionRequest, res: any) {
    // verify user's credentials...

    let userId = "userId"; // get from db
    await superTokensNextWrapper(
        async (next) => {
            await createNewSession(req, res, userId);
        },
        req,
        res
    );
    res.json({
        message: "User logged in!"
    });
}

NestJS

import { Controller, Post, Res, Req } from "@nestjs/common";
import type { Response, Request } from "express";
import { createNewSession } from "supertokens-node/recipe/session";

@Controller()
export class ExampleController {
  // For more information about "AuthGuard" and the "Session" decorator please read our NestJS guide.
  @Post("login")
  async postLogin(@Req() req: Request, @Res() res: Response): Promise<{ message: string }> {
    let userId = "userId"; // get from db

    await createNewSession(req, res, userId);

    /* a new session has been created.
     * - an access & refresh token has been attached to the response's cookie
     * - a new row has been inserted into the database for this new session
     */

    return { message: "User logged in!" };
  }
}

Python

import (
    "net/http"

    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func login(w http.ResponseWriter, r *http.Request) {

    // verify user's credentials...

    userId := "userId" // get from db

    _, err := session.CreateNewSession(r, w, userId, nil, nil)
    if err != nil {
        err = supertokens.ErrorHandler(err, r, w)
        if err != nil {
            // Send 500 to client
        }
    }

    /* a new session has been created.
     * - an access & refresh token has been attached to the response's cookie
     * - a new row has been inserted into the database for this new session
     */

    // Send 200 success to client
}

Other Frameworks

FastAPI

from supertokens_python.recipe.session.asyncio import create_new_session
from fastapi import Request
from fastapi.responses import JSONResponse

@app.post('/login') 
async def login(request: Request):
    # verify user's credentials...

    user_id = "..." # get from db

    await create_new_session(request, user_id)

    # a new session has been created.
    # - an access & refresh token has been attached to the response's cookie
    # - a new row has been inserted into the database for this new session
    #

    return JSONResponse({"message": "User logged in!"})

Flask

from supertokens_python.recipe.session.syncio import create_new_session
from flask import jsonify
from flask.wrappers import Request


@app.route('/login', methods=['POST']) 
def login(request: Request):
    # verify user's credentials...

    user_id = "..." # get from db

    create_new_session(request, user_id)

    # a new session has been created.
    # - an access & refresh token has been attached to the response's cookie
    # - a new row has been inserted into the database for this new session
    #

    return jsonify({"message": "User logged in!"})

Django

from supertokens_python.recipe.session.asyncio import create_new_session
from django.http import HttpRequest, JsonResponse

async def login(request: HttpRequest):
    # verify user's credentials...

    user_id = "..." # get from db

    await create_new_session(request, user_id)

    # a new session has been created.
    # - an access & refresh token has been attached to the response's cookie
    # - a new row has been inserted into the database for this new session
    #

    return JsonResponse({"message": "User logged in!"})

CreateNewSession without req / res dependency

In the above version of the createNewSession function, we pass it the request object and the response object (depending on the language and framework). Whilst this is convenient, you may want to create a new session without using the req and res objects and take control of how the tokens are set in the response. This is possible by using the createNewSessionWithoutRequestResponse function.

NodeJS

Important

For other backend frameworks, you can follow our guide on how to spin up a separate server configured with the SuperTokens backend SDK to authenticate requests and issue session tokens.

GoLang

import express from "express";
import Session from "supertokens-node/recipe/session";

let app = express();

app.post("/login", async (req, res) => {

    // verify user's credentials...

    let userId = "userId"; // get from db

    let session = await Session.createNewSessionWithoutRequestResponse(userId);

    // we can fetch the session tokens from the session object as follows:
    const tokens = session.getAllSessionTokensDangerously();
    if (tokens.accessAndFrontTokenUpdated) {
        // TODO: set access token in response via tokens.accessToken
        // TODO: set front-token in response via tokens.frontToken
        if (tokens.refreshToken) {
            // TODO: set refresh token update in response via tokens.refreshToken
        }
        if (tokens.antiCsrfToken) {
            // TODO: set anti-csrf token update in response via tokens.antiCsrfToken
        }
    }

    res.json({ message: "User logged in!" });
})

Python

import (
    "net/http"

    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func login(w http.ResponseWriter, r *http.Request) {

    // verify user's credentials...

    userId := "userId" // get from db

    session, err := session.CreateNewSessionWithoutRequestResponse(userId, nil, nil, nil)
    if err != nil {
        err = supertokens.ErrorHandler(err, r, w)
        if err != nil {
            // Send 500 to client
        }
    }

    tokens := session.GetAllSessionTokensDangerously()
    if (tokens.AccessAndFrontendTokenUpdated) {
        // TODO: set access token in response via tokens.AccessToken
        // TODO: set front-token in response via tokens.FrontToken
        if (tokens.RefreshToken != nil) {
            // TODO: set refresh token update in response via *tokens.RefreshToken
        }
        if (tokens.AntiCsrfToken != nil) {
            // TODO: set anti-csrf token update in response via *tokens.AntiCsrfToken
        }
    }
    // Send 200 success to client
}

Other Frameworks

from supertokens_python.recipe.session.asyncio import create_new_session_without_request_response
from fastapi import Request
from fastapi.responses import JSONResponse


@app.post('/login')  
async def login(request: Request):
    # verify user's credentials...

    user_id = "..."  # get from db

    session = await create_new_session_without_request_response(user_id)

    tokens = session.get_all_session_tokens_dangerously()
    if tokens["accessAndFrontTokenUpdated"]:
        # TODO: set access token in response via tokens["accessToken"]
        # TODO: set front-token in response via tokens["frontToken"]
        if tokens["refreshToken"] is not None:
            # TODO: set refresh token in response via tokens["refreshToken"]
            pass
        if tokens["antiCsrfToken"] is not None:
            # TODO: set anti-csrf token update in response via tokens["antiCsrfToken"]
            pass

    return JSONResponse({"message": "User logged in!"})