Post signin / signup callbacks

1) On the frontend#

This method allows you to fire events immediately after a successful sign in / up. For example to send analytics events post sign in / up.

ReactJS
Angular
Vue
Plain JavaScript
React Native

Note

You can use the supertokens-web-js SDK which exposes several helper functions that query the APIs exposed by the SuperTokens backend SDK.

You can refer to this example app as a reference for using the supertokens-web-js SDK.

Note

To use SuperTokens with React Native you need to use the supertokens-react-native SDK. The SDK provides session management features.

To add login functionality, you need to build your own UI and call the APIs exposed by the backend SDKs. You can find the API spec here

import SuperTokens from "supertokens-auth-react";import ThirdParty from "supertokens-auth-react/recipe/thirdparty";import Session from "supertokens-auth-react/recipe/session";
SuperTokens.init({    appInfo: {        apiDomain: "...",        appName: "...",        websiteDomain: "..."    },    recipeList: [        ThirdParty.init({            onHandleEvent: async (context) => {                if (context.action === "SESSION_ALREADY_EXISTS") {                    // TODO:                } else {                    if (context.action === "SUCCESS") {                        if (context.isNewUser) {                            // TODO: Sign up                        } else {                            // TODO: Sign in                        }                    }                }            }        }),        Session.init()    ]});

info

Please refer to this page to learn more about the onHandleEvent hook.

2) On the backend#

For this, you'll have to override signInUpPOST API in the init function call.

NodeJS
GoLang
Python

import SuperTokens from "supertokens-node";import ThirdParty from "supertokens-node/recipe/thirdparty";import Session from "supertokens-node/recipe/session";
SuperTokens.init({    appInfo: {        apiDomain: "...",        appName: "...",        websiteDomain: "..."    },    supertokens: {        connectionURI: "...",    },    recipeList: [        ThirdParty.init({            signInAndUpFeature: {                providers: [/* ... */]            },            override: {                apis: (originalImplementation) => {                    return {                        ...originalImplementation,                        signInUpPOST: async function (input) {
                            if (originalImplementation.signInUpPOST === undefined) {                                throw Error("Should never come here");                            }
                            // First we call the original implementation of signInUpPOST.                            let response = await originalImplementation.signInUpPOST(input);
                            // Post sign up response, we check if it was successful                            if (response.status === "OK") {                                let { id, email } = response.user;
                                // This is the response from the OAuth 2 provider that contains their tokens or user info.                                let thirdPartyAuthCodeResponse = response.authCodeResponse;
                                if (response.createdNewUser) {                                    // TODO: Post sign up logic                                } else {                                    // TODO: Post sign in logic                                }                            }                            return response;                        }                    }                }            }        }),        Session.init({ /* ... */ })    ]});

import (    "fmt"
    "github.com/supertokens/supertokens-golang/recipe/thirdparty"    "github.com/supertokens/supertokens-golang/recipe/thirdparty/tpmodels"    "github.com/supertokens/supertokens-golang/supertokens")
func main() {
    supertokens.Init(supertokens.TypeInput{        RecipeList: []supertokens.Recipe{            thirdparty.Init(&tpmodels.TypeInput{                Override: &tpmodels.OverrideStruct{                    APIs: func(originalImplementation tpmodels.APIInterface) tpmodels.APIInterface {                        // create a copy of the originalImplementation                        originalSignInUpPOST := *originalImplementation.SignInUpPOST
                        // override the sign in up API                        (*originalImplementation.SignInUpPOST) = func(provider tpmodels.TypeProvider, code string, authCodeResponse interface{}, redirectURI string, options tpmodels.APIOptions, userContext supertokens.UserContext) (tpmodels.SignInUpPOSTResponse, error) {
                            // First we call the original implementation of SignInUpPOST.                            response, err := originalSignInUpPOST(provider, code, authCodeResponse, redirectURI, options, userContext)                            if err != nil {                                return tpmodels.SignInUpPOSTResponse{}, err                            }
                            if response.OK != nil {                                // sign in / up was successful
                                // user object contains the ID, email and other third party info                                user := response.OK.User                                fmt.Println(user)
                                // This is the response from the OAuth 2 provider that contains their tokens or user info.                                thirdPartyAuthCodeResponse := response.OK.AuthCodeResponse                                fmt.Println(thirdPartyAuthCodeResponse)
                                if response.OK.CreatedNewUser {                                    // TODO: Post sign up logic                                } else {                                    // TODO: Post sign in logic                                }
                            }                            return response, nil                        }
                        return originalImplementation                    },                },            }),        },    })}

from supertokens_python import init, InputAppInfofrom supertokens_python.recipe import thirdpartyfrom supertokens_python.recipe.thirdparty.interfaces import APIInterface, APIOptions, SignInUpPostOkResultfrom typing import Union, Dict, Anyfrom supertokens_python.recipe.thirdparty.provider import Provider
def override_thirdparty_apis(original_implementation: APIInterface):    original_sign_in_up_post = original_implementation.sign_in_up_post        async def sign_in_up_post(provider: Provider, code: str, redirect_uri: str, client_id: Union[str, None], auth_code_response: Union[Dict[str, Any], None], api_options: APIOptions,                              user_context: Dict[str, Any]):        # First we call the original implementation of signInPOST.        response = await original_sign_in_up_post(provider, code, redirect_uri, client_id, auth_code_response, api_options, user_context)                # Post sign up response, we check if it was successful        if isinstance(response, SignInUpPostOkResult):            _ = response.user.user_id            __ = response.user.email
            # This is the response from the OAuth 2 provider that contains their tokens or user info.            ___ = response.auth_code_response
            if response.created_new_user:                pass # TODO: Post sign up logic            else:                pass # TODO: Post sign in logic
        return response                original_implementation.sign_in_up_post = sign_in_up_post    return original_implementation
init(    app_info=InputAppInfo(api_domain="...", app_name="...", website_domain="..."),        framework='...',     recipe_list=[        thirdparty.init(            override=thirdparty.InputOverrideConfig(                apis=override_thirdparty_apis            ),            sign_in_and_up_feature=thirdparty.SignInAndUpFeature(providers=[])        )    ])

Using the code above, if createdNewUser is true, you can (for example):

Add the user's ID and their info to your own database (in addition to it being stored in SuperTokens).
Send analytics events about a sign up.
Send a welcome email to the user.