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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.

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 === "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 signInUp recipe function in the init function call.

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: {
functions: (originalImplementation) => {
return {
...originalImplementation,
signInUp: async function (input) {

// First we call the original implementation of signInUp.
let response = await originalImplementation.signInUp(input);

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

// This is the response from the OAuth 2 provider that contains their tokens or user info.
let providerAccessToken = response.oAuthTokens["access_token"];
let firstName = response.rawUserInfoFromProvider.fromUserInfoAPI!["first_name"];

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({ /* ... */ })
]
});

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.
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