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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/4431/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: tool123 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ilk5RVliSUVHMlNNeVM1anV1SDVveVNLQTNrTEd1dGtuaFJDbzY0RXA2ZWMiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjo0NDMxLCJzdGF0ZV9ub25jZSI6IjlhMmNmYjQ4ODhjOTJmNzU5N2NkIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiI0NDMxIn0sImlzcyI6ImhlbGxvdG9vbDEyMyIsInN1YiI6InRvb2wxMjMiLCJhdWQiOiJodHRwczovL2x0aS1yaS5pbXNnbG9iYWwub3JnL3BsYXRmb3Jtcy80NTE4L2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3OTM5MDM3MzUsImV4cCI6MTc5MzkwNDAzNSwianRpIjoiNDg3ZTAwZTRmNjAwNTUzNzUwYjgifQ.Yl2QkbL0pIgEMuyYulgZW8vc9d66Hm0ZguWUBpEoKN_K5M2UBFcA-vmDfowK9HXByZ0lY36_X2vshNhvRudZRr_naOTnR7Pd5wD3m9_WPR3LCZm8U2wJUKNHTVcTCIn4QBll7X-dfu_lhCiQ-gGvSZQkukXvQ0z48cg_I2fLKB5kQngQbbmwtWJdw20H4QejyAhhN1UHeiAwyKylHpKYyzoCSzr-XDonDlZgmxwspnswlIsf3PoOcHHCG3JWLyqDyraJpmQy_LIynipa9sgQfchWSelCLCiI7OFt_uZaXYEmIeCXQ-JM86E-Yniy9sYJW0BkOBk11Sg2dyouSM2eEQ (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: 9a2cfb4888c92f7597cd (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)