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.eyJ0b29sX2lkIjoyMjU3LCJzdGF0ZV9ub25jZSI6ImVmOWM4MzIyZWY5NGI1NjcxYzY1IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyMjU3In0sImlzcyI6Ik5hbWUgb2YgdG9vbCIsInN1YiI6IjEyMzQ1Njc4OSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzI1MTQvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc4NTE2NzcwNSwiZXhwIjoxNzg1MTY4MDA1LCJqdGkiOiIwNDhiNTBiMTA0YmE5MmYwYjg5MSJ9.KMbRamNzrfw_LPXNuTxc5rEsZCdJbDJ1vcp8ts-leyqkp_Xk94uz_sS1-mfSRuIVZLjWLkvzzfIRorSvQGnhhqEj9zQi4F6sGUlrTteepHtlMdkNUQ4_mj--_9fZN03qzSTWJZeoky3jC6G1wnfQpGqgnbXPhRbP0f3Xk-k7aIp3p_o5AzPd9jDEbuX2czCTkABKrxoVQd0myLo_XGJH2WQVI9nNvK5ij_SOw4AjbuLOyNIJq1jyExQss6otAqca4HvH5DYDyBUPr2EXdr3bYhEJ70RXZrtTTX3RLGrVV3fM-9c2XkKc6GtZmhK-_ISlWDfv5R_RXtQLNFHL2sHESg (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: ef9c8322ef94b5671c65 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)