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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2721/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: just a tribute (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImY4YkQtUElGNm9FQmlueVBGSnRVT0k0d3VTbXBQU1VaWXV0Z01fV3FEUEkiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjllODVlMTY0ZTE0YjI0NmViOGVhIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc1NjYwNDg4NSwiZXhwIjoxNzU2NjA1MTg1LCJqdGkiOiIyYzc2ODI3NDUzNzRmMDNlN2JhYiJ9.IAubgGMlNvoMZNr-yudBSxijvDLc3oHi5d2MMXQUzjXL-FuokLfYQwwK8z8QUkc7Ni5iVYlvB5hdgZqpg5K4g45qNKBYNZurGu0nWrudLUry64qaxKq2J_ufaJhdU_4frJ2tnUcq3GndBg5GG_0iIQf7ed6QbIHqU_RC1uS_ns8fqKvtJTV9oTm0v8H-eKUTc6RiVWRXEcC8OlVsRdPBJfmU5pC8DaT85vPEB3tJ1gU5I9uDL-nEua4oS66OHUHhhC5GBbzjFoH7qvk7yVZ4DCUmVLWcaGxdpyTwlpvqtMV0jrgL0oZv02DYZJRl8Z5by8LFdfI3-rWF_r0oDjWkJA (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: 9e85e164e14b246eb8ea (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)