{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"467222", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/2898/launches", "lti_message_hint"=>"71376", "client_id"=>"12345", "lti_deployment_id"=>"1"}

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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2898/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: 12345 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IlU4VUx1N2U3WXpHNnZhek9uRk83azl6N19hMzYyMHRZOWlsVkdXNG1vYWciLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyODk4LCJzdGF0ZV9ub25jZSI6IjM5Yjk5MjliZjQ4ODAzOGM3Yjg5IiwicGFyYW1zIjp7ImlzcyI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmciLCJsb2dpbl9oaW50IjoiNDY3MjIyIiwidGFyZ2V0X2xpbmtfdXJpIjoiaHR0cHM6Ly9sdGktcmkuaW1zZ2xvYmFsLm9yZy9sdGkvdG9vbHMvMjg5OC9sYXVuY2hlcyIsImx0aV9tZXNzYWdlX2hpbnQiOiI3MTM3NiIsImNsaWVudF9pZCI6IjEyMzQ1IiwibHRpX2RlcGxveW1lbnRfaWQiOiIxIiwiY29udHJvbGxlciI6Imx0aS9sb2dpbl9pbml0aWF0aW9ucyIsImFjdGlvbiI6ImluZGV4IiwidG9vbF9pZCI6IjI4OTgifSwiaXNzIjoiVG9ib3QgdG9vbCBMVEkgMS4zIiwic3ViIjoiMTIzNDUiLCJhdWQiOiJodHRwczovL2x0aS1yaS5pbXNnbG9iYWwub3JnL3BsYXRmb3Jtcy8zMjI3L2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3NTE1MTQ3MzQsImV4cCI6MTc1MTUxNTAzNCwianRpIjoiMzg2NWM4YTgzYmE1OTc4ZGMwOGIifQ.iQj1xjwlU1TUF9AAUjd_SPKSC1Fx_WyX6BkgV-V-SuGMi7vvjrrll5_51rzOLahrxR_lJLjKhp8vxwc8ssLQZGO9Y9JeFuyJpC9kAQ2S3t4piwEK6YzquID4XPCO7BZU0XuNsS6N_FskA5_YUFX8cYdfEfWd2SwwUlZxhcx_ZvvzA3AyF6E8GMpjUerUWS3KtrMI5Zhn19zBYzzgeZO91koXGwy0DKPWUQGXGE7TwaC2P-e4t75AAuVZzRh6LhK_DDOne8Xc7UccWSUIdvGoEeiJT5yO_TtiXUaYCfl60L2bnevZYiWTHex-V4AlYN61ZAP3papMgYXYGQUlTjnfEw (required, opaque value used to maintain state between the request and the callback)

login_hint: 467222 (required, tools and platforms must support a value of form_post)

lti_message_hint: 71376 (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: 39b9929bf488038c7b89 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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