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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2578/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: test_ruby_ri (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImhLNjI5SDN2TmszZ1Y0NXlPbzI0cFpyUkRYeUlydG0wWUYtdnRaSWhLWk0iLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjM5NjY5ZDc1NWFjY2E2NmYzNTE1IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3NzQwMTU3NzQsImV4cCI6MTc3NDAxNjA3NCwianRpIjoiYWVhZTUyOGEwZWRiNzQxNmZmMzcifQ.fWF72lU3FT27q2ahR0E-SZTh1iIv3VQeNtxQzPhOAGIjyTlwgcTxVu8sZTF1MwAmlfzOBYg--k0K8mNPTCspWieaYEUpvwtdfwUye8KwRWj4QIvJDRc6HHt5e7OVK7eo5v9D5yxs7DYyz0n3GP5B0eHQXBmTs1h1aE-siR0LQkZTn2V1pGLmaf6tLhzTkEU1G9uwN8NpmWxqucor45tgxl8rAkcWo6OPLmKWCJtzurOUVBMXWBg4_eNKu0ub4QL3PQLeX-WBURVKhvFjzdmSOtOeQm9NGzOOXQcm8P_bcyAbeM_2RnVhhPI0JvtH_nGiNoicGVTTgKxmn0AP9Lxa8g (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: 39669d755acca66f3515 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)