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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6Ijk1Mjk5MmYwOTIwNDVjNzAyOTJlIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTczODczNDg0NSwiZXhwIjoxNzM4NzM1MTQ1LCJqdGkiOiI5Yzg5ODVhOGI3ZWYxNDE4NGNlNSJ9.lyA1lQf-QwjGBd5TLm7tMGEY3ee7Xaqch-YlQH1CD3mLFqePPjwfnm0ELQ7kYpO4UMju9JcF-FI6jbyeu_Ja7X15uoUA4s6znwBWH4snuAAwlhoTYeN2PEqu4wKnSP9ZhnomyGzjThHkiny5OZm9WzJyLDD84JvyrsnG0dcKeBr-ZJRDYzJde14HIiJCM_l6Vua-4Xr-wz-TEoZeh4owdtCBIhIoWIJP32iFPRuCV2N_EdK8qEWlJaIW0Wq4XPMqMqsb0jF71H5m6_etDiNEAr2qlFFymH8sG5Zn6ksma1NT-pJChK4twi6VTl0V58p0hggdDU3P5h3FmJEsClkusQ (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: 952992f092045c70292e (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)