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.eyJ0b29sX2lkIjoyMjU3LCJzdGF0ZV9ub25jZSI6ImQ1YmE0ZTdlYjc3NWJiOTFhYzU0IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyMjU3In0sImlzcyI6Ik5hbWUgb2YgdG9vbCIsInN1YiI6IjEyMzQ1Njc4OSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzI1MTQvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc2NTg3MDc4NywiZXhwIjoxNzY1ODcxMDg3LCJqdGkiOiI2YWNiNTFmZmZkOTljYjM5MDkzMSJ9.TnJJxMvoI9s4Zzg-l0o3avVEcckreYQQa6crsGRPFkQyGpj0sP72_CMKOeIfktd6VD9TW1YNu1yax_W8_ZaS3YnyLxT6ffS1YljVSnNGnTd4qsd9PuxUhTPevY-Ksb1vQrBo2CFrfobiVWLJDyLyimsFGQtdEgVDCYNMxE24Tea1rpn2TxvF8rJjqDzmRDJkDmin84y27Livw78Bnqrwk3S9ipNP8Dw-ghlIqjCTgm8ZeNuKwSB_b1J4ZfvzXLhv-pAh0Sh0d3fPkEIze3dDjsFe3TTO43lWOV5aTdibl_0em-6odZoeflIvQipX74cVL9qkBWfMez5UClyxA1y6jQ (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: d5ba4e7eb775bb91ac54 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)