In case they are already logged into <tt>master.odoo.com</tt>, all they need to do is to click it. Otherwise, they will be redirected to <tt>master.odoo.com</tt> to provide their credentials.
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<h2>Creating JSON APIs with OAuth2 authorization</h2>
<p>Along with the ID token, it's possible for the OpenID Connect Client to request access token, that can be used to authorize access to a custom JSON API.</p>
<p>You can create such API in a way that is similar to creating regular Odoo controllers:</p>