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3.1.5.1.1.3 Processing Details

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The steps performed by the OAuth 2.0 client to request an authorization code grant are defined in [RFC6749] section 4.1.1 (Authorization Request).

If the client chooses to send the optional resource_params query parameter, it MUST send it as a base64 URL encoded JSON-formatted string. The resource_params query parameter MAY include the optional acr element that specifies the URI of the authentication method wanted.