Which UI do you use?

Custom UI

Pre built UI

Post signin / signup callbacks

1) On the frontend

ReactJS

Important

SuperTokens does not provide non-React UI components. So we will be using the supertokens-auth-react SDK and will inject the React components to show the UI. Therefore, the code snippet below refers to the supertokens-auth-react SDK.

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

import SuperTokens from "supertokens-auth-react";
import Passwordless from "supertokens-auth-react/recipe/passwordless";
import Session from "supertokens-auth-react/recipe/session";

SuperTokens.init({
    appInfo: {
        apiDomain: "...",
        appName: "...",
        websiteDomain: "..."
    },
    recipeList: [
        Passwordless.init({
            contactMethod: "EMAIL_OR_PHONE",

            onHandleEvent: async (context) => {
                if (context.action === "SESSION_ALREADY_EXISTS") {
                    // TODO:
                } else if (context.action === "PASSWORDLESS_RESTART_FLOW") {
                    // TODO:
                } else if (context.action === "PASSWORDLESS_CODE_SENT") {
                    // TODO:
                } else {
                    let {id, emails, phoneNumbers} = context.user;
                    if (context.action === "SUCCESS") {
                        if (context.isNewRecipeUser && context.user.loginMethods.length === 1) {
                            // TODO: Sign up
                        } else {
                            // TODO: Sign in
                        }
                    }
                }
            }
        }),
        Session.init()
    ]
});

info

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

Angular

Important

SuperTokens does not provide non-React UI components. So we will be using the supertokens-auth-react SDK and will inject the React components to show the UI. Therefore, the code snippet below refers to the supertokens-auth-react SDK.

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

import SuperTokens from "supertokens-auth-react";
import Passwordless from "supertokens-auth-react/recipe/passwordless";
import Session from "supertokens-auth-react/recipe/session";

SuperTokens.init({
    appInfo: {
        apiDomain: "...",
        appName: "...",
        websiteDomain: "..."
    },
    recipeList: [
        Passwordless.init({
            contactMethod: "EMAIL_OR_PHONE",

            onHandleEvent: async (context) => {
                if (context.action === "SESSION_ALREADY_EXISTS") {
                    // TODO:
                } else if (context.action === "PASSWORDLESS_RESTART_FLOW") {
                    // TODO:
                } else if (context.action === "PASSWORDLESS_CODE_SENT") {
                    // TODO:
                } else {
                    let {id, emails, phoneNumbers} = context.user;
                    if (context.action === "SUCCESS") {
                        if (context.isNewRecipeUser && context.user.loginMethods.length === 1) {
                            // TODO: Sign up
                        } else {
                            // TODO: Sign in
                        }
                    }
                }
            }
        }),
        Session.init()
    ]
});

info

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

Vue

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

import SuperTokens from "supertokens-auth-react";
import Passwordless from "supertokens-auth-react/recipe/passwordless";
import Session from "supertokens-auth-react/recipe/session";

SuperTokens.init({
    appInfo: {
        apiDomain: "...",
        appName: "...",
        websiteDomain: "..."
    },
    recipeList: [
        Passwordless.init({
            contactMethod: "EMAIL_OR_PHONE",

            onHandleEvent: async (context) => {
                if (context.action === "SESSION_ALREADY_EXISTS") {
                    // TODO:
                } else if (context.action === "PASSWORDLESS_RESTART_FLOW") {
                    // TODO:
                } else if (context.action === "PASSWORDLESS_CODE_SENT") {
                    // TODO:
                } else {
                    let {id, emails, phoneNumbers} = context.user;
                    if (context.action === "SUCCESS") {
                        if (context.isNewRecipeUser && context.user.loginMethods.length === 1) {
                            // 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 the consumeCode recipe function in the init function call.

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 SuperTokens from "supertokens-node";
import Passwordless from "supertokens-node/recipe/passwordless";
import Session from "supertokens-node/recipe/session";

SuperTokens.init({
    appInfo: {
        apiDomain: "...",
        appName: "...",
        websiteDomain: "..."
    },
    recipeList: [
        Passwordless.init({
            contactMethod: "EMAIL", // This example will work with any contactMethod
            flowType: "USER_INPUT_CODE_AND_MAGIC_LINK", // This example will work with any flowType

            override: {
                functions: (originalImplementation) => {
                    return {
                        ...originalImplementation,
                        consumeCode: async (input) => {
                            
                            // First we call the original implementation of consumeCode.
                            let response = await originalImplementation.consumeCode(input);

                            // Post sign up response, we check if it was successful
                            if (response.status === "OK") {
                                let { id, emails, phoneNumbers } = response.user;

                                if (input.session === undefined) {
                                    if (response.createdNewRecipeUser && response.user.loginMethods.length === 1) {
                                        // TODO: post sign up logic
                                    } else {
                                        // TODO: post sign in logic
                                    }
                                }
                            }
                            return response;
                        }
                    }
                }
            }
        }),
        Session.init({ /* ... */ })
    ]
});

Python

import (
    "fmt"

    "github.com/supertokens/supertokens-golang/recipe/passwordless"
    "github.com/supertokens/supertokens-golang/recipe/passwordless/plessmodels"
    "github.com/supertokens/supertokens-golang/supertokens"
)

func main() {

    supertokens.Init(supertokens.TypeInput{
        RecipeList: []supertokens.Recipe{
            passwordless.Init(plessmodels.TypeInput{
                Override: &plessmodels.OverrideStruct{
                    Functions: func(originalImplementation plessmodels.RecipeInterface) plessmodels.RecipeInterface {
                        // create a copy of the original function
                        originalConsumeCode := *originalImplementation.ConsumeCode

                        // override the sign in up function
                        (*originalImplementation.ConsumeCode) = func(userInput *plessmodels.UserInputCodeWithDeviceID, linkCode *string, preAuthSessionID string, tenantId string, userContext supertokens.UserContext) (plessmodels.ConsumeCodeResponse, error) {

                            // First we call the original implementation of ConsumeCode.
                            response, err := originalConsumeCode(userInput, linkCode, preAuthSessionID, tenantId, userContext)
                            if err != nil {
                                return plessmodels.ConsumeCodeResponse{}, err
                            }

                            if response.OK != nil {
                                // sign in was successful

                                // user object contains the ID and email or phone number
                                user := response.OK.User
                                fmt.Println(user)

                                if response.OK.CreatedNewUser {
                                    // TODO: Post sign up logic
                                } else {
                                    // TODO: Post sign in logic
                                }

                            }
                            return response, nil
                        }

                        return originalImplementation
                    },
                },
            }),
        },
    })
}

Other Frameworks

from supertokens_python import init, InputAppInfo
from supertokens_python.recipe import session, passwordless
from supertokens_python.recipe.passwordless.interfaces import RecipeInterface, ConsumeCodeOkResult
from typing import Dict, Any, Union

def override_passwordless_functions(original_implementation: RecipeInterface) -> RecipeInterface:
    original_consume_code = original_implementation.consume_code
    
    async def consume_code(
        pre_auth_session_id: str,
        user_input_code: Union[str, None],
        device_id: Union[str, None],
        link_code: Union[str, None],
        tenant_id: str,
        user_context: Dict[str, Any]
    ):
        # First we call the original implementation of consume_code.
        result = await original_consume_code(pre_auth_session_id, user_input_code, device_id, link_code, tenant_id, user_context)

        # Post sign up response, we check if it was successful
        if isinstance(result, ConsumeCodeOkResult):
            id = result.user.user_id
            phone_number = result.user.phone_number
            email = result.user.email
            print(id)
            print(phone_number)
            print(email)
            
            if result.created_new_user:
                # TODO: post sign up logic
                pass
            else:
                # TODO: post sign in logic
                pass
        
        return result
                
    original_implementation.consume_code = consume_code

    return original_implementation

init(
    app_info=InputAppInfo(api_domain="...", app_name="...", website_domain="..."),
    framework='...', 
    recipe_list=[
        passwordless.init(
            contact_config=passwordless.ContactConfig(
                contact_method="EMAIL", # This example will work with any contactMethod
            ),
            flow_type="USER_INPUT_CODE_AND_MAGIC_LINK", # This example will work with any flowType
            override=passwordless.InputOverrideConfig(
                functions=override_passwordless_functions
            ),
        ),
        session.init(),
    ]
)

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.
• You can associate a role to the user.