Which UI do you use?

Custom UI

Pre built UI

Using the verifySession middleware

Verifying a session using the verifySession middleware

For your APIs that require a user to be logged in, use the verifySession middleware:

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

let app = express();

app.post("/like-comment", verifySession(), (req: SessionRequest, res) => {
    let userId = req.session!.getUserId();
    //....
});

Hapi

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

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

server.route({
    path: "/like-comment",
    method: "post",
    options: {
        pre: [
            {
                method: verifySession()
            },
        ],
    },
    handler: async (req: SessionRequest, res) => {
        let userId = req.session!.getUserId();
        //...
    }
})

Fastify

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

let fastify = Fastify();

fastify.post("/like-comment", {
    preHandler: verifySession(),
}, (req: SessionRequest, res) => {
    let userId = req.session!.getUserId();
    //....
});

Koa

import { verifySession } from "supertokens-node/recipe/session/framework/awsLambda";
import { SessionEventV2 } from "supertokens-node/framework/awsLambda";

async function likeComment(awsEvent: SessionEventV2) {
    let userId = awsEvent.session!.getUserId();
    //....
};

exports.handler = verifySession(likeComment);

Loopback

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

let router = new KoaRouter();

router.post("/like-comment", verifySession(), (ctx: SessionContext, next) => {
    let userId = ctx.session!.getUserId();
    //....
});

AWS Lambda / Netlify

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

class LikeComment {
    constructor(@inject(RestBindings.Http.CONTEXT) private ctx: MiddlewareContext) { }
    @post("/like-comment")
    @intercept(verifySession())
    @response(200)
    handler() {
        let userId = (this.ctx as SessionContext).session!.getUserId();
        //....
    }
}

Next.js

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();
    //....
}

NestJS

import { Controller, Post, UseGuards, Session } from "@nestjs/common";
import { SessionContainer } from "supertokens-node/recipe/session";
import { AuthGuard } from './auth/auth.guard';

@Controller()
export class ExampleController {
  @Post('example')
  @UseGuards(new AuthGuard()) // For more information about this guard please read our NestJS guide.
  async postExample(@Session() session: SessionContainer): Promise<boolean> {
    let userId = session.getUserId();

    //....
    return true;
  }
}

Python

Chi

import (
    "fmt"
    "net/http"

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

func main() {
    _ = http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
        // Wrap the API handler in session.VerifySession
        session.VerifySession(nil, likeCommentAPI).ServeHTTP(rw, r)
    })
}

func likeCommentAPI(w http.ResponseWriter, r *http.Request) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

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"
)

func main() {
    router := gin.New()

    // Wrap the API handler in session.VerifySession
    router.POST("/likecomment", verifySession(nil), likeCommentAPI)
}

// This is a function that wraps the supertokens verification function
// to work the gin
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 likeCommentAPI(c *gin.Context) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(c.Request.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

Gin

import (
    "fmt"
    "net/http"

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

func main() {
    r := chi.NewRouter()

    // Wrap the API handler in session.VerifySession
    r.Post("/likecomment", session.VerifySession(nil, likeCommentAPI))
}

func likeCommentAPI(w http.ResponseWriter, r *http.Request) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

Mux

import (
    "fmt"
    "net/http"

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

func main() {
    router := mux.NewRouter()

    // Wrap the API handler in session.VerifySession
    router.HandleFunc("/likecomment", session.VerifySession(nil, likeCommentAPI)).Methods(http.MethodPost)
}

func likeCommentAPI(w http.ResponseWriter, r *http.Request) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

Other Frameworks

FastAPI

from supertokens_python.recipe.session.framework.fastapi import verify_session
from supertokens_python.recipe.session import SessionContainer
from fastapi import Depends

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

    print(user_id)

Flask

from supertokens_python.recipe.session.framework.flask import verify_session
from supertokens_python.recipe.session import SessionContainer
from flask import g

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

    user_id = session.get_user_id()

    print(user_id)

Django

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

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

    user_id = session.get_user_id()
    
    print(user_id)

The session object

This object exposes the following functions:

• getHandle: Returns the sessionHandle for this session. This is a constant, unique string per session that never changes for its session.
• getUserId: Returns the userId of logged in user
• getSessionDataFromDatabase: Returns the session data (stored in the database) that is associated with the session.
• updateSessionDataInDatabase: Set a new JSON object to the session data (stored in the database)
• getAccessTokenPayload: Returns the access token's payload for this session. This includes claims defined by you (e.g.: in createNewSession), standard claims (sub, iat, exp) and supertokens specific ones (sessionHandle, parentRefreshTokenHash1, etc.)
• mergeIntoAccessTokenPayload: Adds key / values into a JSON object in the access token. Set a key to null to remove it from the payload.
• revokeSession: Destroys this session in the db and on the frontend
• getTimeCreated: Returns the time in milliseconds of when this session was created
• getExpiry: Returns the time in milliseconds of when this session will expire if not refreshed.
• getAccessToken: Returns the raw string access token
• getAllSessionTokensDangerously: Returns an object that contains the raw string representation of all tokens associated with the session along with a boolean that indicates if thee session needs to be updated on the frontend.

getSessionDataFromDatabase vs getAccessTokenPayload

• getSessionDataFromDatabase queries the SuperTokens Core to get the information, mapped to that session's handle, from the database. Whereas getAccessTokenPayload reads directly from the access token used in the request.
• getSessionDataFromDatabase is much slower since it requires a network call.
• The information stored using updateSessionDataInDatabase (changes the result of getSessionDataFromDatabase function call), is not exposed to the frontend in any way. So if you want to store something sensitive against the session handle, use this method.
• If you want access to some information in most / all API, like the user's role, then use getAccessTokenPayload and mergeIntoAccessTokenPayload since fetching this information from the session will be very fast (no network call required).

Optional session verification

Sometimes, you want an API to be accessible even if there is no session. In that case, you can use the sessionRequired flag:

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

let app = express();

app.post("/like-comment", 
    verifySession({sessionRequired: false}), 
    (req: SessionRequest, res) => {
        if (req.session !== undefined) {
            let userId = req.session.getUserId();
        } else {
            // user is not logged in...
        }
    }
);

Hapi

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

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

server.route({
    path: "/like-comment",
    method: "post",
    options: {
        pre: [
            {
                method: verifySession({ sessionRequired: false })
            },
        ],
    },
    handler: async (req: SessionRequest, res) => {
        if (req.session !== undefined) {
            let userId = req.session.getUserId();
        } else {
            // user is not logged in...
        }
    }
})

Fastify

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

let fastify = Fastify();

fastify.post("/like-comment", {
    preHandler: verifySession({ sessionRequired: false }),
}, (req: SessionRequest, res) => {
    if (req.session !== undefined) {
        let userId = req.session.getUserId();
    } else {
        // user is not logged in...
    }
});

Koa

import { verifySession } from "supertokens-node/recipe/session/framework/awsLambda";
import { SessionEventV2 } from "supertokens-node/framework/awsLambda";

async function likeComment(awsEvent: SessionEventV2) {
    if (awsEvent.session !== undefined) {
        let userId = awsEvent.session.getUserId();
    } else {
        // user is not logged in...
    }
};

exports.handler = verifySession(likeComment, { sessionRequired: false });

Loopback

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

let router = new KoaRouter();

router.post("/like-comment",
    verifySession({ sessionRequired: false }),
    (ctx: SessionContext, next) => {
        if (ctx.session !== undefined) {
            let userId = ctx.session.getUserId();
        } else {
            // user is not logged in...
        }
    }
);

AWS Lambda / Netlify

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

class LikeComment {
    constructor(@inject(RestBindings.Http.CONTEXT) private ctx: MiddlewareContext) { }
    @post("/like-comment")
    @intercept(verifySession({ sessionRequired: false }))
    @response(200)
    handler() {
        let session = (this.ctx as SessionContext).session;
        if (session !== undefined) {
            let userId = session.getUserId();
        } else {
            // user is not logged in...
        }
    }
}

Next.js

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: any, res: any) {
    await superTokensNextWrapper(
        async (next) => {
            await verifySession({ sessionRequired: false })(req, res, next);
        },
        req,
        res
    )

    let session = (req as SessionRequest).session;

    if (session !== undefined) {
        let userId = session.getUserId();
        // session exists
    } else {
        // session doesn't exist
    }
    //....
}

NestJS

import { Controller, Post, UseGuards, Session } from "@nestjs/common";
import { SessionContainer } from "supertokens-node/recipe/session";
import { OptionalAuthGuard } from './auth/optionalAuth.guard';

@Controller()
export class ExampleController {
  @Post('example')
  @UseGuards(new OptionalAuthGuard()) // For more information about this guard please read our NestJS guide.
  async postExample(@Session() session: SessionContainer): Promise<boolean> {
    if (session !== undefined) {
        let userId = session.getUserId();
        // session exists
    } else {
        // session doesn't exist
    }

    //....
    return true;
  }
}

Python

Chi

import (
    "fmt"
    "net/http"

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

func main() {

    _ = http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
        // Wrap the API handler in session.VerifySession
        sessionRequired := false
        session.VerifySession(&sessmodels.VerifySessionOptions{
            SessionRequired: &sessionRequired,
        }, likeCommentAPI).ServeHTTP(rw, r)
    })
}

func likeCommentAPI(w http.ResponseWriter, r *http.Request) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

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"
)

func main() {
    router := gin.New()

    // Wrap the API handler in session.VerifySession
    sessionRequired := false
    router.POST("/likecomment", verifySession(&sessmodels.VerifySessionOptions{
        SessionRequired: &sessionRequired,
    }), likeCommentAPI)
}

// This is a function that wraps the supertokens verification function
// to work the gin
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 likeCommentAPI(c *gin.Context) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(c.Request.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

Gin

import (
    "fmt"
    "net/http"

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

func main() {
    r := chi.NewRouter()

    // Wrap the API handler in session.VerifySession
    sessionRequired := false
    r.Post("/likecomment", session.VerifySession(&sessmodels.VerifySessionOptions{
        SessionRequired: &sessionRequired,
    }, likeCommentAPI))
}

func likeCommentAPI(w http.ResponseWriter, r *http.Request) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

Mux

import (
    "fmt"
    "net/http"

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

func main() {
    router := mux.NewRouter()

    // Wrap the API handler in session.VerifySession
    sessionRequired := false
    router.HandleFunc("/likecomment", session.VerifySession(&sessmodels.VerifySessionOptions{
        SessionRequired: &sessionRequired,
    }, likeCommentAPI)).Methods(http.MethodPost)
}

func likeCommentAPI(w http.ResponseWriter, r *http.Request) {
    // retrieve the session object as shown below
    sessionContainer := session.GetSessionFromRequestContext(r.Context())

    userID := sessionContainer.GetUserID()

    fmt.Println(userID)
}

Other Frameworks

FastAPI

from supertokens_python.recipe.session.framework.fastapi import verify_session
from fastapi import Depends
from supertokens_python.recipe.session import SessionContainer

@app.post('/like_comment') 
async def like_comment(session: SessionContainer = Depends(verify_session(session_required=False))):
    if session is not None:
        user_id = session.get_user_id()
        print(user_id) # TODO..
    else:
        pass # user is not logged in

Flask

from supertokens_python.recipe.session.framework.flask import verify_session
from supertokens_python.recipe.session import SessionContainer
from typing import Union
from flask import g

@app.route('/update-jwt', methods=['POST']) 
@verify_session(session_required=False)
def like_comment():
    session: Union[SessionContainer, None] = g.supertokens 

    if session is not None:
        user_id = session.get_user_id()
        print(user_id) # TODO..
    else:
        pass # user is not logged in

Django

from supertokens_python.recipe.session.framework.django.asyncio import verify_session
from django.http import HttpRequest
from supertokens_python.recipe.session import SessionContainer
from typing import Union

@verify_session(session_required=False)
async def like_comment(request: HttpRequest):
    session: Union[None, SessionContainer] = request.supertokens 
    
    if session is not None:
        user_id = session.get_user_id()
        print(user_id) # TODO..
    else:
        pass # user is not logged in

Verifying the claims of a session

Sometimes, you may also want to check if there are certain claims in the session as part of the verification process. For example, you may want to check that the session has the admin role claim for certain APIs, or that the user has completed 2FA.

This can be done using our session claims validator feature. Let's take an example of using the user roles claim to check if the session has the admin claim:

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 { verifySession } from "supertokens-node/recipe/session/framework/express";
import express from "express";
import { SessionRequest } from "supertokens-node/framework/express";
import UserRoles from "supertokens-node/recipe/userroles";

let app = express();

app.post(
    "/update-blog",
    verifySession({
        overrideGlobalClaimValidators: async (globalValidators) => [
            ...globalValidators,
            UserRoles.UserRoleClaim.validators.includes("admin"),
            // UserRoles.PermissionClaim.validators.includes("edit")
        ],
    }),
    async (req: SessionRequest, res) => {
        // All validator checks have passed and the user is an admin.
    }
);

Hapi

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

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

server.route({
    path: "/update-blog",
    method: "post",
    options: {
        pre: [
            {
                method: verifySession({
                    overrideGlobalClaimValidators: async (globalValidators) => [
                        ...globalValidators,
                        UserRoles.UserRoleClaim.validators.includes("admin"),
                        // UserRoles.PermissionClaim.validators.includes("edit")
                    ],
                }),
            },
        ],
    },
    handler: async (req: SessionRequest, res) => {
        // All validator checks have passed and the user is an admin.
    }
})

Fastify

import Fastify from "fastify";
import { verifySession } from "supertokens-node/recipe/session/framework/fastify";
import { SessionRequest } from "supertokens-node/framework/fastify";
import UserRoles from "supertokens-node/recipe/userroles";

let fastify = Fastify();

fastify.post("/update-blog", {
    preHandler: verifySession({
        overrideGlobalClaimValidators: async (globalValidators) => [
            ...globalValidators,
            UserRoles.UserRoleClaim.validators.includes("admin"),
            // UserRoles.PermissionClaim.validators.includes("edit")
        ],
    }),
}, async (req: SessionRequest, res) => {
    // All validator checks have passed and the user is an admin.
});

Koa

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

async function updateBlog(awsEvent: SessionEvent) {
    // All validator checks have passed and the user is an admin.
};

exports.handler = verifySession(updateBlog, {
    overrideGlobalClaimValidators: async (globalValidators) => ([
        ...globalValidators, 
        UserRoles.UserRoleClaim.validators.includes("admin"),
        // UserRoles.PermissionClaim.validators.includes("edit")
    ])
});

Loopback

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

let router = new KoaRouter();

router.post("/update-blog", verifySession({
        overrideGlobalClaimValidators: async (globalValidators) => ([
            ...globalValidators, 
            UserRoles.UserRoleClaim.validators.includes("admin"),
            // UserRoles.PermissionClaim.validators.includes("edit")
        ])
    }), async (ctx: SessionContext, next) => {
    // All validator checks have passed and the user is an admin.
});

AWS Lambda / Netlify

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

class SetRole {
    constructor(@inject(RestBindings.Http.CONTEXT) private ctx: MiddlewareContext) { }
    @post("/update-blog")
    @intercept(verifySession({
        overrideGlobalClaimValidators: async (globalValidators) => ([
            ...globalValidators, 
            UserRoles.UserRoleClaim.validators.includes("admin"),
            // UserRoles.PermissionClaim.validators.includes("edit")
        ])
    }))
    @response(200)
    async handler() {
        // All validator checks have passed and the user is an admin.
    }
}

Next.js

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

export default async function setRole(req: SessionRequest, res: any) {
    await superTokensNextWrapper(
        async (next) => {
            await verifySession({
                overrideGlobalClaimValidators: async (globalValidators) => ([
                    ...globalValidators, 
                    UserRoles.UserRoleClaim.validators.includes("admin"),
                    // UserRoles.PermissionClaim.validators.includes("edit")
                ])
            })(req, res, next);
        },
        req,
        res
    )
    // All validator checks have passed and the user is an admin.
}

NestJS

import { Controller, Post, UseGuards, Request, Response, Session } from "@nestjs/common";
import { SessionContainer, SessionClaimValidator } from "supertokens-node/recipe/session";
import { AuthGuard } from './auth/auth.guard';
import UserRoles from "supertokens-node/recipe/userroles";

@Controller()
export class ExampleController {
  @Post('example')
  @UseGuards(new AuthGuard({
    overrideGlobalClaimValidators: async (globalValidators: SessionClaimValidator[]) => ([
        ...globalValidators, 
        UserRoles.UserRoleClaim.validators.includes("admin"),
        // UserRoles.PermissionClaim.validators.includes("edit")
    ])
  }))
  async postExample(@Session() session: SessionContainer): Promise<boolean> {
    // All validator checks have passed and the user is an admin.
    return true;
  }
}

Python

Chi

import (
    "net/http"

    "github.com/supertokens/supertokens-golang/recipe/userroles/userrolesclaims"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/session/claims"
    "github.com/supertokens/supertokens-golang/recipe/session/sessmodels"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func main() {
    _ = http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
        session.VerifySession(&sessmodels.VerifySessionOptions{
            OverrideGlobalClaimValidators: func(globalClaimValidators []claims.SessionClaimValidator, sessionContainer sessmodels.SessionContainer, userContext supertokens.UserContext) ([]claims.SessionClaimValidator, error) {
                globalClaimValidators = append(globalClaimValidators, userrolesclaims.UserRoleClaimValidators.Includes("admin", nil, nil))
                return globalClaimValidators, nil
            },
        }, exampleAPI).ServeHTTP(rw, r)
    })
}

func exampleAPI(w http.ResponseWriter, r *http.Request) {
    // TODO: session is verified and all validators have passed..
}

net/http

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/supertokens/supertokens-golang/recipe/userroles/userrolesclaims"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/session/claims"
    "github.com/supertokens/supertokens-golang/recipe/session/sessmodels"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func main() {
    router := gin.New()

    // Wrap the API handler in session.VerifySession
    router.POST("/likecomment", verifySession(&sessmodels.VerifySessionOptions{
        OverrideGlobalClaimValidators: func(globalClaimValidators []claims.SessionClaimValidator, sessionContainer sessmodels.SessionContainer, userContext supertokens.UserContext) ([]claims.SessionClaimValidator, error) {
            globalClaimValidators = append(globalClaimValidators, userrolesclaims.UserRoleClaimValidators.Includes("admin", nil, nil))
            return globalClaimValidators, nil
        },
    }), exampleAPI)
}

// This is a function that wraps the supertokens verification function
// to work the gin
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 exampleAPI(c *gin.Context) {
    // TODO: session is verified and all claim validators pass.
}

Gin

import (
    "net/http"

    "github.com/go-chi/chi"
    "github.com/supertokens/supertokens-golang/recipe/userroles/userrolesclaims"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/session/claims"
    "github.com/supertokens/supertokens-golang/recipe/session/sessmodels"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func main() {
    r := chi.NewRouter()

    // Wrap the API handler in session.VerifySession
    r.Post("/likecomment", session.VerifySession(&sessmodels.VerifySessionOptions{
        OverrideGlobalClaimValidators: func(globalClaimValidators []claims.SessionClaimValidator, sessionContainer sessmodels.SessionContainer, userContext supertokens.UserContext) ([]claims.SessionClaimValidator, error) {
            globalClaimValidators = append(globalClaimValidators, userrolesclaims.UserRoleClaimValidators.Includes("admin", nil, nil))
            return globalClaimValidators, nil
        },
    }, exampleAPI))
}

func exampleAPI(w http.ResponseWriter, r *http.Request) {
    // TODO: session is verified and all claim validators pass.
}

Mux

import (
    "net/http"

    "github.com/gorilla/mux"
    "github.com/supertokens/supertokens-golang/recipe/userroles/userrolesclaims"
    "github.com/supertokens/supertokens-golang/recipe/session"
    "github.com/supertokens/supertokens-golang/recipe/session/claims"
    "github.com/supertokens/supertokens-golang/recipe/session/sessmodels"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func main() {
    router := mux.NewRouter()

    // Wrap the API handler in session.VerifySession
    router.HandleFunc("/likecomment", session.VerifySession(&sessmodels.VerifySessionOptions{
        OverrideGlobalClaimValidators: func(globalClaimValidators []claims.SessionClaimValidator, sessionContainer sessmodels.SessionContainer, userContext supertokens.UserContext) ([]claims.SessionClaimValidator, error) {
            globalClaimValidators = append(globalClaimValidators, userrolesclaims.UserRoleClaimValidators.Includes("admin", nil, nil))
            return globalClaimValidators, nil
        },
    }, exampleAPI)).Methods(http.MethodPost)
}

func exampleAPI(w http.ResponseWriter, r *http.Request) {
    // TODO: session is verified and all claim validators pass.
}

Other Frameworks

FastAPI

from supertokens_python.recipe.session.framework.fastapi import verify_session
from supertokens_python.recipe.userroles import UserRoleClaim
from supertokens_python.recipe.session import SessionContainer
from fastapi import Depends

@app.post('/like_comment')  
async def like_comment(session: SessionContainer = Depends(
        verify_session(
            # We add the UserRoleClaim's includes validator
            override_global_claim_validators=lambda global_validators, session, user_context: global_validators + \
            [UserRoleClaim.validators.includes("admin")]
        )
)):
    # All validator checks have passed and the user has a verified email address
    pass

Flask

from supertokens_python.recipe.session.framework.flask import verify_session
from supertokens_python.recipe.userroles import UserRoleClaim

@app.route('/update-jwt', methods=['POST'])  
@verify_session(
    # We add the UserRoleClaim's includes validator
    override_global_claim_validators=lambda global_validators, session, user_context: global_validators + \
    [UserRoleClaim.validators.includes("admin")]
)
def like_comment():
    # All validator checks have passed and the user has a verified email address
    pass

Django

from supertokens_python.recipe.session.framework.django.asyncio import verify_session
from django.http import HttpRequest
from supertokens_python.recipe.userroles import UserRoleClaim

@verify_session(
    # We add the UserRoleClaim's includes validator
    override_global_claim_validators=lambda global_validators, session, user_context: global_validators + \
    [UserRoleClaim.validators.includes("admin")]
)
async def like_comment(request: HttpRequest):
    # All validator checks have passed and the user has a verified email address
    pass

• We add the UserRoleClaim validator to the verifySession function which makes sure that the user has an admin role.
• The globalValidators represents other validators that apply to all API routes by default. This may include a validator that enforces that the user's email is verified (if enabled by you).
• We can also add a PermissionClaim validator to enforce a permission.

feature

You can also build your own custom claim validators based on your app's requirements.