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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6ImI3YzY4YTNjNDk3MTQ5NzRkNDEyIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc0MTc1NDQ1MCwiZXhwIjoxNzQxNzU0NzUwLCJqdGkiOiIyYmE4OTY5YzNmODIwMGRjYmIyNyJ9.lsdGnPXsiRPji6q51PZjTkyVmx-FwND7Lsb9SISUuAqJdBmhJYpYSJWiBj4TUtuMUtcYz6fmeDLinpPpf4GuqfEDu-ZSoBCJqn5-y3Vl4UE1tVbkdfA153S9yg_4eJdC1R50L57624U6VUZxrePbGqyLbxwnrW0QE5D79Qx4_0oOvTEIO1FINnK9yAfMoJU83RKcMq6u4ukd1Dpjd9Oc_aby33ymLLcDk9jRRXiued2fqCqNGh4dKR_76WBpkHXy1FZwVeTy3OOCaJz6qy0K0MdaMQYphKq7cvMyUCxJs898g0s8ZGlrY2fv8dyjEyuLy1ioYyZ0PyvLMCb6DPpkqQ (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: b7c68a3c49714974d412 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)