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.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjY1ZTU3YjRiYzQ0ZTc5YmQ3MTUxIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3NzU4NTI1NDcsImV4cCI6MTc3NTg1Mjg0NywianRpIjoiNGVlN2Q3OGU3ZjM2OWE2N2Y0ZjkifQ.uwtgT40j_ueD-Bz4Q0MeAdrnG7M6XnTRUm9L9I5bgaZkIW9la66iAu3hzjNoZs-1Rwf65jyaWBVckappTEXj4sBN1VMMBqupUYxx5-PXTsQMCZG7OgctcnJZMEL0a6OySk5X1eG533zcLWCFAoF5CNKjzzQ2wBk69lGXxAD78apoB53dg3ikILnfQQbwT_xGE4n2A8Jh1IEDbG7G2AGAHS7JTjFhAzDhYJEZlsFU50IxpqDIqPvCKOY2cQ4RRJEFCG7xGACcmE4bd_Zpd7J-cYyiiYzTuCA8n7oKu9b7tPEUF1_yMSjgDXOWcuhECsrdMTJBIFfRWf-UlQgjAod4FA (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: 65e57b4bc44e79bd7151 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)