Which UI do you use?

Custom UI

Pre built UI

Get User Info

There are several ways to fetch information about a user:

• Using their user ID, you can get their email ID, time joined, and metadata that is saved in the user metadata recipe.
• Lastly, you can get the user's session information and access token payload from their session handle (offline mode), or from the currently logged in session object (online mode).

Fetching information using the user's email

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

You can get a user's information on the backend using the getUserByEmail and getUserById functions:

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

async function getUserInfo() {
    // Note that usersInfo has type User
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let usersInfo = await EmailPassword.getUserByEmail("public", "test@example.com");
}

Python

You can get a user's information on the backend using the GetUserByEmail and GetUserById functions:

import (
    "fmt"

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

func main() {

    // Note that usersInfo has type User
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    usersInfo, err := emailpassword.GetUserByEmail("test@example.com")
    if err != nil {
        // TODO: Handle error
        return
    }
    fmt.Println(usersInfo)
    //...
}

Other Frameworks

Asyncio

from supertokens_python.recipe.emailpassword.asyncio import get_user_by_email

async def some_func():
    # Note that user_info has type User
    user_info = await get_user_by_email("test@example.com")
    print(user_info)

Syncio

from supertokens_python.recipe.emailpassword.syncio import get_user_by_email

# Note that user_info has type User
# You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki 
user_info = get_user_by_email("test@example.com")

Multi Tenancy

Notice that the first argument of the above function is "public". This is the default tenantId which means that SuperTokens will return information about the user whose email is "test@example.com" in the "public" tenant.

If you are using our multi tenancy feature, you can pass in a different tenantId to get information about a user in a different tenant.

Fetching information using the user's ID

Using the getUserById 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

Express

import express from "express";
import EmailPassword from "supertokens-node/recipe/emailpassword";
import { verifySession } from "supertokens-node/recipe/session/framework/express";
import { SessionRequest } from 'supertokens-node/framework/express';

let app = express();
app.get("/get-user-info", verifySession(), async (req: SessionRequest, res) => {
    let userId = req.session!.getUserId();
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let userInfo = await EmailPassword.getUserById(userId)
    // ... 
})

Hapi

import EmailPassword from "supertokens-node/recipe/emailpassword";
import { verifySession } from "supertokens-node/recipe/session/framework/hapi";
import Hapi from "@hapi/hapi";
import { SessionRequest } from "supertokens-node/framework/hapi";

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

server.route({
    path: "/get-user-info",
    method: "get",
    options: {
        pre: [
            {
                method: verifySession()
            },
        ],
    },
    handler: async (req: SessionRequest, res) => {
        let userId = req.session!.getUserId();
        // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
        let userInfo = await EmailPassword.getUserById(userId);
        //...
    }
})

Fastify

import Fastify from "fastify";
import EmailPassword from "supertokens-node/recipe/emailpassword";
import { verifySession } from "supertokens-node/recipe/session/framework/fastify";
import { SessionRequest } from 'supertokens-node/framework/fastify';

const fastify = Fastify();

fastify.post("/like-comment", {
    preHandler: verifySession(),
}, async (req: SessionRequest, res) => {
    let userId = req.session!.getUserId();
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let userInfo = await EmailPassword.getUserById(userId);
    //....
});

Koa

import EmailPassword from "supertokens-node/recipe/emailpassword";
import { verifySession } from "supertokens-node/recipe/session/framework/awsLambda";
import { SessionEvent } from "supertokens-node/framework/awsLambda";

async function getUserInfo(awsEvent: SessionEvent) {
    let userId = awsEvent.session!.getUserId();
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let userInfo = await EmailPassword.getUserById(userId);
    //....
};

exports.handler = verifySession(getUserInfo);

Loopback

import KoaRouter from "koa-router";
import EmailPassword from "supertokens-node/recipe/emailpassword";
import { verifySession } from "supertokens-node/recipe/session/framework/koa";
import { SessionContext } from "supertokens-node/framework/koa";

let router = new KoaRouter();

router.get("/get-user-info", verifySession(), async (ctx: SessionContext, next) => {
    let userId = ctx.session!.getUserId();
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let userInfo = await EmailPassword.getUserById(userId);
    //....
});

AWS Lambda / Netlify

import { inject, intercept } from "@loopback/core";
import { RestBindings, MiddlewareContext, get, response } from "@loopback/rest";
import  EmailPassword from "supertokens-node/recipe/emailpassword";
import { verifySession } from "supertokens-node/recipe/session/framework/loopback";
import Session from "supertokens-node/recipe/session";
import { SessionContext } from "supertokens-node/framework/loopback";

class GetUserInfo {
    constructor(@inject(RestBindings.Http.CONTEXT) private ctx: MiddlewareContext) {}
    @get("/get-user-info")
    @intercept(verifySession())
    @response(200)
    async handler() {
        let userId = ((this.ctx as any).session as Session.SessionContainer).getUserId();
        // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
        let userInfo = await EmailPassword.getUserById(userId);
        //....
    }
}

Next.js

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

export default async function likeComment(req: SessionRequest, res: any) {
    await superTokensNextWrapper(
        async (next) => {
            await verifySession()(req, res, next);
        },
        req,
        res
    )

    let userId = req.session!.getUserId();
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let userInfo = await EmailPassword.getUserById(userId);
    //....
}

NestJS

import { Controller, Post, UseGuards, Request, Response } from "@nestjs/common";
import { AuthGuard } from './auth/auth.guard';
import { Session } from './auth/session.decorator';
import EmailPassword from "supertokens-node/recipe/emailpassword";
import { SessionRequest } from "supertokens-node/framework/express";

@Controller()
export class ExampleController {
  @Post('example')
  @UseGuards(new AuthGuard()) // For more information about this guard please read our NestJS guide.
  async postExample(@Request() req: SessionRequest, @Session() session: Session, @Response({passthrough: true}) res: Response): Promise<boolean> {
    let userId = session.getUserId();
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    let userInfo = await EmailPassword.getUserById(userId); 
    //....
    return true;
  }
}

Python

Chi

import (
    "fmt"
    "net/http"

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

func main() {
    _ = http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
        session.VerifySession(nil, getUserInfoAPI).ServeHTTP(rw, r)
    })
}

func getUserInfoAPI(w http.ResponseWriter, r *http.Request) {
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    userInfo, err := emailpassword.GetUserByID(userID)
    if err != nil {
        // TODO: Handle error
        return
    }
    fmt.Println(userInfo)
}

net/http

import (
    "fmt"
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/session/sessmodels"
    "github.com/supertokens/supertokens-golang/recipe/emailpassword"
)

func main() {
    router := gin.New()
    router.GET("/getuserinfo", verifySession(nil), getUserInfoAPI)
}

func verifySession(options *sessmodels.VerifySessionOptions) gin.HandlerFunc {
    return func(c *gin.Context) {
        session.VerifySession(options, func(rw http.ResponseWriter, r *http.Request) {
            c.Request = c.Request.WithContext(r.Context())
            c.Next()
        })(c.Writer, c.Request)
        // we call Abort so that the next handler in the chain is not called, unless we call Next explicitly
        c.Abort()
    }
}

func getUserInfoAPI(c *gin.Context) {
    sessionContainer := session.GetSessionFromRequestContext(c.Request.Context())

    userID := sessionContainer.GetUserID()

    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    userInfo, err := emailpassword.GetUserByID(userID)
    if err != nil {
        // TODO: Handle error
        return
    }
    fmt.Println(userInfo)
    //...
}

Gin

import (
    "fmt"
    "net/http"

    "github.com/go-chi/chi"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/emailpassword"
)

func main() {
    r := chi.NewRouter()
    r.Get("/getuserinfo", session.VerifySession(nil, getUserInfoAPI))
}

func getUserInfoAPI(w http.ResponseWriter, r *http.Request) {
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    userInfo, err := emailpassword.GetUserByID(userID)
    if err != nil {
        // TODO: Handle error
        return
    }
    fmt.Println(userInfo)
}

Mux

import (
    "fmt"
    "net/http"

    "github.com/gorilla/mux"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/emailpassword"
)

func main() {
    router := mux.NewRouter()
    router.HandleFunc("/getuserinfo", session.VerifySession(nil, getUserInfoAPI)).Methods(http.MethodGet)
}

func getUserInfoAPI(w http.ResponseWriter, r *http.Request) {
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()
    // You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    userInfo, err := emailpassword.GetUserByID(userID)
    if err != nil {
        // TODO: Handle error
        return
    }
    fmt.Println(userInfo)
}

Other Frameworks

FastAPI

from supertokens_python.recipe.session.framework.fastapi import verify_session
from supertokens_python.recipe.emailpassword.asyncio import get_user_by_id
from supertokens_python.recipe.session import SessionContainer
from fastapi import FastAPI, Depends

app = FastAPI()

@app.post('/get_user_info_api') 
async def get_user_info_api(session: SessionContainer = Depends(verify_session())):
    user_id = session.get_user_id()

    # You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    _ = await get_user_by_id(user_id)

Flask

from supertokens_python.recipe.session.framework.flask import verify_session
from supertokens_python.recipe.emailpassword.syncio import get_user_by_id
from flask import Flask, g
from supertokens_python.recipe.session import SessionContainer

app = Flask(__name__)

@app.route('/update-jwt', methods=['POST']) 
@verify_session()
def get_user_info_api():
    session: SessionContainer = g.supertokens 

    user_id = session.get_user_id()

    # You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    _ = get_user_by_id(user_id)

Django

from supertokens_python.recipe.session.framework.django.asyncio import verify_session
from supertokens_python.recipe.emailpassword.asyncio import get_user_by_id
from django.http import HttpRequest
from supertokens_python.recipe.session import SessionContainer

@verify_session()
async def get_user_info_api(request: HttpRequest):
    session: SessionContainer = request.supertokens 

    user_id = session.get_user_id()

    # You can learn more about the `User` object over here https://github.com/supertokens/core-driver-interface/wiki
    _ = await get_user_by_id(user_id)

Using the user metadata recipe

Checkout the user metadata recipe docs which shows you how to save and fetch any JSON object against the user's ID. You can use this to save information like the user's name (first_name and last_name) or any other field associated with the user.

Getting information from the user's session

The user's session contains their user ID and the session's payload. You can access this on the backend and frontend as well as whilst the user is online or offline.

More information about this can be found in the session docs.