Note: this article is about letting members log in to your own application. Looking for the Congressus Manager login? Click here!

When you build your own application, it is a nuisance that members need a separate account for it. With Log in with Congressus, members log in with their association account. It works like "Sign in with Google", but under the name of your association.

In short: you send the member to your association's website. There the member logs in and gives your application permission. We send the member back to your application with a code, and you exchange that code for a token. With the token you see who logged in and request the member's details.

Congressus follows the OAuth2 and OpenID Connect standards for this. Every website of your association has its own Discovery URL, such as https://www.vereniging.nl/.well-known/openid-configuration, so a standard OpenID Connect library works without custom code.

You create the app for your application yourself, under Settings > Apps.