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.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjA5MGY1OTExYzRlYThjYWUxMDZlIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3ODc4MzcwNjIsImV4cCI6MTc4NzgzNzM2MiwianRpIjoiODg4MTk4MmZkOTIzZTdlMGY0NmIifQ.G_r5Fu6GK9EszpcS3qbMYkRh1i8FgrvJ3WxI9S-Vu_2wRyLQoW9G720swPVW2tRIx8zhw_BoQnccHLE8rXnR1kgkh7xPTRl3SNJs9SadARiZOM2fOjnCJ6tfPoCGuRbCBBnQH5LYD11SnyBwyTnA_4lYD1VVmO_OQrS6AtEdoJv8u3iDIn934w48OcA250pOps1ELX1nBeMBpLYXA-KvwsBt_2-6bMD70IieIlGK6bxjEoKpYNEyXHxmqTo9b7EzegaylB8OwQ50-EhWkLJImEdG8fXR7T2yE1WubtJns4lNkBtgVpDU6KapnMa9dtS9RXAdlcQ8bYfbf8a2tQF2Aw (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: 090f5911c4ea8cae106e (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)