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LTI 2.0 Bad Request 400 at Tool Registration

Question asked by fm0056063 on Jul 7, 2017
Latest reply on Aug 1, 2017 by mkauffman

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Hi there,

I'm implementing an LTI2.0 Tool Provider, and I'm getting this error while accepting the registration process:

{"status":400,"message":"Service type not found in tool consumer profile : https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile#ToolProxy"}

Below's some data related from POST call. Please let me know if I can include some more data that could help to resolve this issue.

Thanks in advance for your help!

CURLOPT_URL = 'https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolproxy'

CURLOPT_HTTPHEADER = array (

0 => 'Authorization: OAuth oauth_version="1.0",oauth_nonce="131518430bce6c5a3ae6bde2e7c28117",oauth_timestamp="1499454924",oauth_consumer_key="e443adfec85640d6979163f5bd142d7f",oauth_body_hash="I3Np%2FR3Apf6LTD7bkUZiepBGx1Q%3D",oauth_signature_method="HMAC-SHA1",oauth_signature="8dNsV%2F8EfZHta4LpZwaAdTjszSc%3D"',

1 => 'Content-Type: application/vnd.ims.lti.v2.toolproxy+json',

2 => 'Content-Length: 2295',

)

CURLOPT_POSTFIELDS = '{"@context":["http:\\/\\/purl.imsglobal.org\\/ctx\\/lti\\/v2\\/ToolProxy"],"@type":"ToolProxy","@id":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/external\\/toolproxy","lti_version":"LTI-2p0","tool_consumer_profile":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile","tool_profile":{"product_instance":{"guid":"myGuid","product_info":{"product_name":{"default_value":"MyApp","key":"tool.name"},"description":{"default_value":"LTI tool provider","key":"tool.description"},"product_version":"3.9.1499450484","product_family":{"vendor":{"code":"ims","vendor_name":{"default_value":"IMSGlobal","key":"tool.vendor.name"},"description":{"default_value":"IMS Global Learning Consortium Inc","key":"tool.vendor.description"},"website":"https:\\/\\/www.imsglobal.org\\/"}}}},"lti_version":"LTI-2p0","resource_handler":[{"resource_type":{"code":"resource-selection"},"resource_name":{"default_value":"Resource selection","key":"resource-selection.resource.name"},"description":{"default_value":"Tool provider which allows to select a resource.","key":"resourse-selection.resource.description"},"message":[{"message_type":"basic-lti-launch-request","path":"lti_connect.php","enabled_capability":["User.id","Membership.role"],"parameter":[]}],"icon_info":[{"default_location":{"path":"logo.jpg"},"key":"resource-selection.icon.path"}]},{"resource_type":{"code":"site-navigation"},"resource_name":{"default_value":"Site Navigation","key":"site-navigation.resource.name"},"description":{"default_value":"Tool provider which allows to navigate app site.","key":"site-navigation.resource.description"},"message":[{"message_type":"basic-lti-launch-request","path":"lti_connect.php","enabled_capability":["User.id","Membership.role"],"parameter":[]}],"icon_info":[{"default_location":{"path":"logo.jpg"},"key":"site-navigation.icon.path"}]}],"base_url_choice":[{"default_base_url":"myBaseUrl"}]},"security_contract":{"shared_secret":"Jif1c6CIrqAO","tool_service":[{"@type":"RestService","service":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile#ToolProxy","action":["POST"]}]}}'

The Tool Consumer Profile Json:

{"@context":["http://purl.imsglobal.org/ctx/lti/v2/ToolConsumerProfile",{"tcp":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile#"}],"@type":"ToolConsumerProfile","@id":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile","lti_version":"LTI-2p0","guid":"","product_instance":{"guid":"6c68135eb8bc4ba3b4a4643afe2f76ca","product_info":{"product_name":{"default_value":"Blackboard Learn","key":"product.name"},"description":{"default_value":"Blackboard Inc. is a global leader in enterprise technology and innovative solutions that improve the experience of millions of students and learners around the world every day. Blackboard\'s solutions allow thousands of higher education, K-12, professional, corporate, and government organizations to extend teaching and learning online, facilitate campus commerce and security, and communicate more effectively with their communities. Founded in 1997, Blackboard is headquartered in Washington, D.C., with offices in North America, Europe, Asia and Australia.","key":"product.vendor.description"},"product_version":"3200.8.0-rel.18+b6e4dc1","product_family":{"@id":"product.family.id","code":"Blackboard Learn","vendor":{"@id":"blackboard","code":"blackboard","vendor_name":{"default_value":"Blackboard Inc.","key":"product.vendor.name"},"description":{"default_value":"Blackboard Inc. is a global leader in enterprise technology and innovative solutions that improve the experience of millions of students and learners around the world every day. Blackboard\'s solutions allow thousands of higher education, K-12, professional, corporate, and government organizations to extend teaching and learning online, facilitate campus commerce and security, and communicate more effectively with their communities. Founded in 1997, Blackboard is headquartered in Washington, D.C., with offices in North America, Europe, Asia and Australia.","key":"product.vendor.description"},"website":"http://www.blackboard.com","timestamp":"2017-07-07T19:15:07.319Z","contact":{"email":"NA"}}}},"support":{"email":"admin@bd-partner-a-original.blackboard.com"},"service_owner":{"@id":"ServiceOwner","service_owner_name":{"default_value":"Blackboard, Inc.","key":"service_owner_name"},"description":{"default_value":"Blackboard, Inc.","key":"service_owner_description"},"support":{"email":"admin@bd-partner-a-original.blackboard.com"},"timestamp":"2017-07-07T19:15:07.319Z"}},"capability_offered":["Context.sourcedId","CourseSection.sourcedId","LtiLink.custom.url","Membership.role","Person.email.primary","Person.name.family","Person.name.full","Person.name.given","Person.sourcedId","Result.autocreate","Result.sourcedId","Result.url","ToolConsumerProfile.url","ToolProxy.custom.url","ToolProxy.url","ToolProxyBinding.custom.url","ToolProxyRegistrationRequest","User.id","User.username","basic-lti-launch-request","caliper.federated.session.id","caliper.profile.url"],"service_offered":[{"@type":"RestService","@id":"tcp:ToolConsumerProfile","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile","format":["application/vnd.ims.lti.v2.toolconsumerprofile+json"],"action":["GET"]},{"@type":"RestService","@id":"tcp:ToolProxy","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolproxy","format":["application/vnd.ims.lti.v2.toolproxy+json"],"action":["GET","POST"]},{"@type":"RestService","@id":"tcp:ToolProxySettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/toolproxy/{tool_proxy_guid}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:ToolProxyBindingSettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/toolbinding/{context_id}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:LtiLinkSettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/link/{link_id}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:Result.item","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/result/{sourcedId}","format":["application/vnd.ims.lis.v2.result+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:CaliperProfile.collection","endpoint":"https://bd-partner-a-original.blackboard.com/api/v1/telemetry/caliper/profile/","format":["application/vnd.ims.lti.v1.caliperprofile+json"],"action":["GET"]}]}'

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fm0056063 Jul 17, 2017 9:35 AM

Just wanted to say that we are testing our tool on Learning Tools Interoperability Certification Suite | IMS Global Learning Consortium, and we are passing the registration process without issues.

So, if someone knows if Blackboard needs something different or extra in this registration step it would be really helpful, thanks!

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vickers.stephen @ fm0056063 on Jul 17, 2017 10:43 AM

Looks like Blackboard is not expecting you to expand the service ID. You could try defining the "tcp" context in your Tool Proxy and giving the service as "tcp:ToolProxy". This will become the required way of doing this in future releases of LTI anyway to minimise any need to handle JSON-LD constructs.

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fm0056063 @ vickers.stephen on Jul 17, 2017 2:33 PM

Thanks for your reply Stephen.

I've tried adding the "tcp" context, but now I'm getting error 500 response from Blackboard. {"status":500,"extraInfo":"3b5e8308e1584127b89df1a53c9c547b"}

Please let me know if I'm missing something. Basically what I did on ToolProxy was:

1- Add tcp context to have it like this => @context":["http:\\/\\/purl.imsglobal.org\\/ctx\\/lti\\/v2\\/ToolProxy",{"tcp":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile#"}],

2- Update tool_service from security_contract to have it like this => "tool_service":[{"@type":"RestServiceProfile","service":"tcp:ToolProxy","action":["POST"]}]

By the way, I tested it again on Learning Tools Interoperability Certification Suite | IMS Global Learning Consortium and it continues working with above changes.

Below I'll include the updated ConsumerProfile & ToolProxy representation, in case this helps!

ToolConsumerProfile:

{"@context":["http://purl.imsglobal.org/ctx/lti/v2/ToolConsumerProfile",{"tcp":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile#"}],"@type":"ToolConsumerProfile","@id":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile","lti_version":"LTI-2p0","guid":"","product_instance":{"guid":"6c68135eb8bc4ba3b4a4643afe2f76ca","product_info":{"product_name":{"default_value":"Blackboard Learn","key":"product.name"},"description":{"default_value":"Blackboard Inc. is a global leader in enterprise technology and innovative solutions that improve the experience of millions of students and learners around the world every day. Blackboard\'s solutions allow thousands of higher education, K-12, professional, corporate, and government organizations to extend teaching and learning online, facilitate campus commerce and security, and communicate more effectively with their communities. Founded in 1997, Blackboard is headquartered in Washington, D.C., with offices in North America, Europe, Asia and Australia.","key":"product.vendor.description"},"product_version":"3200.8.0-rel.30+16cb269","product_family":{"@id":"product.family.id","code":"Blackboard Learn","vendor":{"@id":"blackboard","code":"blackboard","vendor_name":{"default_value":"Blackboard Inc.","key":"product.vendor.name"},"description":{"default_value":"Blackboard Inc. is a global leader in enterprise technology and innovative solutions that improve the experience of millions of students and learners around the world every day. Blackboard\'s solutions allow thousands of higher education, K-12, professional, corporate, and government organizations to extend teaching and learning online, facilitate campus commerce and security, and communicate more effectively with their communities. Founded in 1997, Blackboard is headquartered in Washington, D.C., with offices in North America, Europe, Asia and Australia.","key":"product.vendor.description"},"website":"http://www.blackboard.com","timestamp":"2017-07-17T18:10:55.638Z","contact":{"email":"NA"}}}},"support":{"email":"admin@bd-partner-a-original.blackboard.com"},"service_owner":{"@id":"ServiceOwner","service_owner_name":{"default_value":"Blackboard, Inc.","key":"service_owner_name"},"description":{"default_value":"Blackboard, Inc.","key":"service_owner_description"},"support":{"email":"admin@bd-partner-a-original.blackboard.com"},"timestamp":"2017-07-17T18:10:55.637Z"}},"capability_offered":["Context.sourcedId","CourseSection.sourcedId","LtiLink.custom.url","Membership.role","Person.email.primary","Person.name.family","Person.name.full","Person.name.given","Person.sourcedId","Result.autocreate","Result.sourcedId","Result.url","ToolConsumerProfile.url","ToolProxy.custom.url","ToolProxy.url","ToolProxyBinding.custom.url","ToolProxyRegistrationRequest","User.id","User.username","basic-lti-launch-request","caliper.federated.session.id","caliper.profile.url"],"service_offered":[{"@type":"RestService","@id":"tcp:ToolConsumerProfile","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile","format":["application/vnd.ims.lti.v2.toolconsumerprofile+json"],"action":["GET"]},{"@type":"RestService","@id":"tcp:ToolProxy","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolproxy","format":["application/vnd.ims.lti.v2.toolproxy+json"],"action":["GET","POST"]},{"@type":"RestService","@id":"tcp:ToolProxySettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/toolproxy/{tool_proxy_guid}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:ToolProxyBindingSettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/toolbinding/{context_id}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:LtiLinkSettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/link/{link_id}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:Result.item","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/result/{sourcedId}","format":["application/vnd.ims.lis.v2.result+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:CaliperProfile.collection","endpoint":"https://bd-partner-a-original.blackboard.com/api/v1/telemetry/caliper/profile/","format":["application/vnd.ims.lti.v1.caliperprofile+json"],"action":["GET"]}]}

ToolProxy

{"@context":["http:\\/\\/purl.imsglobal.org\\/ctx\\/lti\\/v2\\/ToolProxy",{"tcp":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile#"}],"@type":"ToolProxy","@id":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/external\\/toolproxy","lti_version":"LTI-2p0","tool_consumer_profile":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile","tool_profile":{"product_instance":{"guid":"https:\\/\\/www-dev.nearpod.us\\/","product_info":{"product_name":{"default_value":"Nearpod","key":"tool.name"},"description":{"default_value":"LTI tool provider","key":"tool.description"},"product_version":"3.9.1500313056","product_family":{"vendor":{"code":"ims","vendor_name":{"default_value":"IMSGlobal","key":"tool.vendor.name"},"description":{"default_value":"IMS Global Learning Consortium Inc","key":"tool.vendor.description"},"website":"https:\\/\\/www.imsglobal.org\\/"}}}},"lti_version":"LTI-2p0","resource_handler":[{"resource_type":{"code":"nearpod-selection"},"resource_name":{"default_value":"Nearpod selection","key":"nearpod-selection.resource.name"},"description":{"default_value":"Tool provider which allows to select a Nearpod lesson.","key":"nearpod-selection.resource.description"},"message":[{"message_type":"basic-lti-launch-request","path":"lti_connect.php","enabled_capability":["User.id","Membership.role"],"parameter":[]}],"icon_info":[{"default_location":{"path":"logo.jpg"},"key":"nearpod-selection.icon.path"}]},{"resource_type":{"code":"nearpod-navigation"},"resource_name":{"default_value":"Nearpod navigation","key":"nearpod-navigation.resource.name"},"description":{"default_value":"Tool provider which allows to navigate Nearpod site.","key":"nearpod-navigation.resource.description"},"message":[{"message_type":"basic-lti-launch-request","path":"lti_connect.php","enabled_capability":["User.id","Membership.role"],"parameter":[]}],"icon_info":[{"default_location":{"path":"logo.jpg"},"key":"nearpod-navigation.icon.path"}]}],"base_url_choice":[{"default_base_url":"https:\\/\\/ct-dev.nearpod.us\\/"}]},"security_contract":{"shared_secret":"899WWjEknpbh","tool_service":[{"@type":"RestServiceProfile","service":"tcp:ToolProxy","action":["POST"]}]}}

Thanks!

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vickers.stephen @ fm0056063 on Jul 17, 2017 2:54 PM

I don't see any more reasons for getting a 500 response for this; indeed there should be no reasons for a 500. Have you raised this with Blackboard? If you are using a version of Learn which is certified for LTI 2.0 then you could also raise it via the IMS member forum so they can follow it up too.

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fm0056063 @ vickers.stephen on Jul 18, 2017 9:24 AM

Ok, thanks again Stephen!

Yes, I've been talking with someone from Blackboard, and yesterday I've created a Case to them. So we're waiting for news, I'll keep you posted.

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mkauffman @ fm0056063 on Aug 1, 2017 7:39 PM

We've been working with our LTI 2.0 Developer, and Frederico's team to resolve this. At the moment it looks like the internal Learn system we gave them to work with has some issues. (Database errors...) It fails with our sample LTI 2.0 provider in a similar fashion to what's described above. GitHub - blackboard/BBDN-LTI-Tool-Provider-Node: A node.js LTI Tool Provider for testing LTI launches, Caliper, and Outc… We've given Frederico's team a different system to test with where the results from using the sample code look correct. Let's see how a different Learn system works out.

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fm0056063 Jul 17, 2017 9:35 AM
Mark Correct
Correct Answer
Just wanted to say that we are testing our tool on Learning Tools Interoperability Certification Suite | IMS Global Learning Consortium, and we are passing the registration process without issues.

So, if someone knows if Blackboard needs something different or extra in this registration step it would be really helpful, thanks!
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- vickers.stephen @ fm0056063 on Jul 17, 2017 10:43 AM
  Mark Correct
  Correct Answer
  Looks like Blackboard is not expecting you to expand the service ID. You could try defining the "tcp" context in your Tool Proxy and giving the service as "tcp:ToolProxy". This will become the required way of doing this in future releases of LTI anyway to minimise any need to handle JSON-LD constructs.
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  - fm0056063 @ vickers.stephen on Jul 17, 2017 2:33 PM
    Mark Correct
    Correct Answer
    Thanks for your reply Stephen.
    
    I've tried adding the "tcp" context, but now I'm getting error 500 response from Blackboard. {"status":500,"extraInfo":"3b5e8308e1584127b89df1a53c9c547b"}
    
    Please let me know if I'm missing something. Basically what I did on ToolProxy was:
    1- Add tcp context to have it like this => @context":["http:\\/\\/purl.imsglobal.org\\/ctx\\/lti\\/v2\\/ToolProxy",{"tcp":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile#"}],
    2- Update tool_service from security_contract to have it like this => "tool_service":[{"@type":"RestServiceProfile","service":"tcp:ToolProxy","action":["POST"]}]
    
    By the way, I tested it again on Learning Tools Interoperability Certification Suite | IMS Global Learning Consortium and it continues working with above changes.
    
    Below I'll include the updated ConsumerProfile & ToolProxy representation, in case this helps!
    
    ToolConsumerProfile:
    
    {"@context":["http://purl.imsglobal.org/ctx/lti/v2/ToolConsumerProfile",{"tcp":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile#"}],"@type":"ToolConsumerProfile","@id":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile","lti_version":"LTI-2p0","guid":"","product_instance":{"guid":"6c68135eb8bc4ba3b4a4643afe2f76ca","product_info":{"product_name":{"default_value":"Blackboard Learn","key":"product.name"},"description":{"default_value":"Blackboard Inc. is a global leader in enterprise technology and innovative solutions that improve the experience of millions of students and learners around the world every day. Blackboard\'s solutions allow thousands of higher education, K-12, professional, corporate, and government organizations to extend teaching and learning online, facilitate campus commerce and security, and communicate more effectively with their communities. Founded in 1997, Blackboard is headquartered in Washington, D.C., with offices in North America, Europe, Asia and Australia.","key":"product.vendor.description"},"product_version":"3200.8.0-rel.30+16cb269","product_family":{"@id":"product.family.id","code":"Blackboard Learn","vendor":{"@id":"blackboard","code":"blackboard","vendor_name":{"default_value":"Blackboard Inc.","key":"product.vendor.name"},"description":{"default_value":"Blackboard Inc. is a global leader in enterprise technology and innovative solutions that improve the experience of millions of students and learners around the world every day. Blackboard\'s solutions allow thousands of higher education, K-12, professional, corporate, and government organizations to extend teaching and learning online, facilitate campus commerce and security, and communicate more effectively with their communities. Founded in 1997, Blackboard is headquartered in Washington, D.C., with offices in North America, Europe, Asia and Australia.","key":"product.vendor.description"},"website":"http://www.blackboard.com","timestamp":"2017-07-17T18:10:55.638Z","contact":{"email":"NA"}}}},"support":{"email":"admin@bd-partner-a-original.blackboard.com"},"service_owner":{"@id":"ServiceOwner","service_owner_name":{"default_value":"Blackboard, Inc.","key":"service_owner_name"},"description":{"default_value":"Blackboard, Inc.","key":"service_owner_description"},"support":{"email":"admin@bd-partner-a-original.blackboard.com"},"timestamp":"2017-07-17T18:10:55.637Z"}},"capability_offered":["Context.sourcedId","CourseSection.sourcedId","LtiLink.custom.url","Membership.role","Person.email.primary","Person.name.family","Person.name.full","Person.name.given","Person.sourcedId","Result.autocreate","Result.sourcedId","Result.url","ToolConsumerProfile.url","ToolProxy.custom.url","ToolProxy.url","ToolProxyBinding.custom.url","ToolProxyRegistrationRequest","User.id","User.username","basic-lti-launch-request","caliper.federated.session.id","caliper.profile.url"],"service_offered":[{"@type":"RestService","@id":"tcp:ToolConsumerProfile","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/profile","format":["application/vnd.ims.lti.v2.toolconsumerprofile+json"],"action":["GET"]},{"@type":"RestService","@id":"tcp:ToolProxy","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolproxy","format":["application/vnd.ims.lti.v2.toolproxy+json"],"action":["GET","POST"]},{"@type":"RestService","@id":"tcp:ToolProxySettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/toolproxy/{tool_proxy_guid}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:ToolProxyBindingSettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/toolbinding/{context_id}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:LtiLinkSettings","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/toolsettings/link/{link_id}","format":["application/vnd.ims.lti.v2.toolsettings+json","application/vnd.ims.lti.v2.toolsettings.simple+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:Result.item","endpoint":"https://bd-partner-a-original.blackboard.com/learn/api/v1/lti/external/result/{sourcedId}","format":["application/vnd.ims.lis.v2.result+json"],"action":["GET","PUT"]},{"@type":"RestService","@id":"tcp:CaliperProfile.collection","endpoint":"https://bd-partner-a-original.blackboard.com/api/v1/telemetry/caliper/profile/","format":["application/vnd.ims.lti.v1.caliperprofile+json"],"action":["GET"]}]}
    
    ToolProxy
    
    {"@context":["http:\\/\\/purl.imsglobal.org\\/ctx\\/lti\\/v2\\/ToolProxy",{"tcp":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile#"}],"@type":"ToolProxy","@id":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/external\\/toolproxy","lti_version":"LTI-2p0","tool_consumer_profile":"https:\\/\\/bd-partner-a-original.blackboard.com\\/learn\\/api\\/v1\\/lti\\/profile","tool_profile":{"product_instance":{"guid":"https:\\/\\/www-dev.nearpod.us\\/","product_info":{"product_name":{"default_value":"Nearpod","key":"tool.name"},"description":{"default_value":"LTI tool provider","key":"tool.description"},"product_version":"3.9.1500313056","product_family":{"vendor":{"code":"ims","vendor_name":{"default_value":"IMSGlobal","key":"tool.vendor.name"},"description":{"default_value":"IMS Global Learning Consortium Inc","key":"tool.vendor.description"},"website":"https:\\/\\/www.imsglobal.org\\/"}}}},"lti_version":"LTI-2p0","resource_handler":[{"resource_type":{"code":"nearpod-selection"},"resource_name":{"default_value":"Nearpod selection","key":"nearpod-selection.resource.name"},"description":{"default_value":"Tool provider which allows to select a Nearpod lesson.","key":"nearpod-selection.resource.description"},"message":[{"message_type":"basic-lti-launch-request","path":"lti_connect.php","enabled_capability":["User.id","Membership.role"],"parameter":[]}],"icon_info":[{"default_location":{"path":"logo.jpg"},"key":"nearpod-selection.icon.path"}]},{"resource_type":{"code":"nearpod-navigation"},"resource_name":{"default_value":"Nearpod navigation","key":"nearpod-navigation.resource.name"},"description":{"default_value":"Tool provider which allows to navigate Nearpod site.","key":"nearpod-navigation.resource.description"},"message":[{"message_type":"basic-lti-launch-request","path":"lti_connect.php","enabled_capability":["User.id","Membership.role"],"parameter":[]}],"icon_info":[{"default_location":{"path":"logo.jpg"},"key":"nearpod-navigation.icon.path"}]}],"base_url_choice":[{"default_base_url":"https:\\/\\/ct-dev.nearpod.us\\/"}]},"security_contract":{"shared_secret":"899WWjEknpbh","tool_service":[{"@type":"RestServiceProfile","service":"tcp:ToolProxy","action":["POST"]}]}}
    
    Thanks!
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    - vickers.stephen @ fm0056063 on Jul 17, 2017 2:54 PM
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      I don't see any more reasons for getting a 500 response for this; indeed there should be no reasons for a 500. Have you raised this with Blackboard? If you are using a version of Learn which is certified for LTI 2.0 then you could also raise it via the IMS member forum so they can follow it up too.
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      - fm0056063 @ vickers.stephen on Jul 18, 2017 9:24 AM
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        Ok, thanks again Stephen!
        
        Yes, I've been talking with someone from Blackboard, and yesterday I've created a Case to them. So we're waiting for news, I'll keep you posted.
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        mkauffman @ fm0056063 on Aug 1, 2017 7:39 PM
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        We've been working with our LTI 2.0 Developer, and Frederico's team to resolve this. At the moment it looks like the internal Learn system we gave them to work with has some issues. (Database errors...) It fails with our sample LTI 2.0 provider in a similar fashion to what's described above. GitHub - blackboard/BBDN-LTI-Tool-Provider-Node: A node.js LTI Tool Provider for testing LTI launches, Caliper, and Outc… We've given Frederico's team a different system to test with where the results from using the sample code look correct. Let's see how a different Learn system works out.
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LTI 2.0 Bad Request 400 at Tool Registration

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