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.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6ImVkNjM3ZTc0MWEwMDU5OGVmZDk3IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3ODI0NzM1NDEsImV4cCI6MTc4MjQ3Mzg0MSwianRpIjoiMmM4MmVmNTNkZjc3YzY2MjljZWMifQ.Az-rWO_TyHSNV-vOYrt-P--vipWUXtr1vg6oPAZk5bRLwQkaIqzHE25k2WpoSfMh2dJAPWjGyKfOsBa7W7yeMjHCWPUxnT_3vb1mcrhiIPdEzalvDAUgmnofKXAUBXmtF2Z6XPXdbNvDy2azaCpPuaSrC3yA_1wCsaU_TrM_Spvl6NKoyB2SyodN_h1U7BAf52KPL2SOxvnhll1IQ_YfU-8iyyUMvIqdYkXvoTl6ufPZcqr_QuIRi2-SLxx69kSgcTRWG_enX-fgfD9ioCk72Qot7YN-8BQnRP5Z395WVjuM2Fwmpe5h43WMdBCN4fpEvHzUfICFA89mIENVHsHiPA (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: ed637e741a00598efd97 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)