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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/1991/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: 12345 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6InRZQVlDbVFyWWRJaDdPVjdJQVI0Qml3YUJQNDBsX3gxazlYSDNoRTdOcFEiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoxOTkxLCJzdGF0ZV9ub25jZSI6IjVmZjBmNzE4NmYwNTc2MDYwY2E4IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIxOTkxIn0sImlzcyI6IkRLVG9vbFRlc3QiLCJzdWIiOiIxMjM0NSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzIyMzEvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3MzE1NjIxMCwiZXhwIjoxNzczMTU2NTEwLCJqdGkiOiI4ZGE5MmY1NGVjNmVkYzIwYzIzNCJ9.ZHbE8Pb0Bav_x5m7kw9qElQr5df_y-aKn9VdVTIWccY5ccvA6Y2dHwBXODjWnDr06eU-MpLKjHMvnxMRUpK79lVXgW1GNMZkO3zDugR1KqUaMkstzmDH7v0TKwMUrzbGRzi1IJqG3YXGfqJWqpOev0g9SQwQDsaCs61NGiflNUhmyf-UHTtrrOlcXjXaDaQuJEn-xmVW7Nsbgzj2CWabO7z2kvDE1G6F9ZFYHwCQBrf8pzTjKo1d3QER6XDRfrwqcZiTNeFNAAAPM-WOaqOK20GoUoAk-15lMD1QX7EzuXLxpsoZvKsitcQECApqBAcx45VZe1COra599eSQ4wmFYQ (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: 5ff0f7186f0576060ca8 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)