response_type: id_token (required, the tool must use a value of id_token)

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2257/launches (required, This URI must exactly match a value pre-registered with the platform)

response_mode: form_post (required, tools and platforms must support a value of form_post)

client_id: 123456789 (required, client identifier valid at the Platform)

scope: openid (required, must contain the openid scope value)

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImMzQjZyZ1FrSGxET3h1amhON3V6LVZSWjh2Tm1sODJCSGVuWEl1WkREaUUiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyMjU3LCJzdGF0ZV9ub25jZSI6ImY2N2JkN2E5YmM0MjM2NTljZTM2IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyMjU3In0sImlzcyI6Ik5hbWUgb2YgdG9vbCIsInN1YiI6IjEyMzQ1Njc4OSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzI1MTQvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc2OTIzMDY5MCwiZXhwIjoxNzY5MjMwOTkwLCJqdGkiOiJmMjNiYmQ3NWJlYTc5OWM2NmUzZSJ9.j_b-GcV7hDdXbIdrkkyxUaOegPfVzQQcfs3JXAzXHO9FM1wXU5EbgHOanu6Hy1R8KBvcLQr0PPSbfGq3IM1tk4Apgolo0L9Kcnp8mKkVXi9AFaU7JXagHC2fBMNXjTAsxCkpFMdtuiH0me1lEgSpbi7fS1WGM1egmfNsCIK545752mG9KOxh_pyiDAOZUrqWvxuBCFn15-a3vnOaYzRHroMEI9ZM1W1RV_aAz8FGOxRX1PXCfZm319bLYJE3LWZ261JVuLgTIrQvFS-xNePqnIdgwDfe0z-t16g9D02Q7LEoMSDCp1HFRHfrUuswLjOy2kPP94Sf1WM9A5dGzaq1Ig (required, opaque value used to maintain state between the request and the callback)

login_hint: (required, tools and platforms must support a value of form_post)

lti_message_hint: (required, a platform opaque identifier identifying the user to login)

prompt: none (optional, The tool should use a value of none. In the future a re-launch flow may support additional values being used here)

nonce: f67bd7a9bc423659ce36 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)