title: Is it possible to automate login to Azure AD B2C using the authorization code flow with PKCE
body: <p>I am setting up a system which uses the OAuth 2.0 authorization code flow with PKCE to connect to Azure AD B2C as described <a href="https://docs.microsoft.com/en-us/azure/active-directory-b2c/authorization-code-flow" rel="nofollow noreferrer">here</a>.</p>
  <p>In the first step of the flow the user is makes a call to <code>https://...b2clogin.com.../authorize?...</code> where they enter their credentials before the initial token is sent back to the redirect URI defined in the query.</p>
  <p>I was wondering if it was possible to send through the user credentials with this initial call so that there is no interactive step - this would allow for automated testing without resorting to browser automation.</p>