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POPost batch request with Breezejs
 

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    <p>I've been trying to POST an entity using Breezejs and WebAPI OData Controllers. <br/>Here are the configurations:</p> <pre><code>config.Routes.MapODataRoute( routeName: "odata", routePrefix: "odata", model: model, batchHandler: new DefaultODataBatchHandler(GlobalConfiguration.DefaultServer)); </code></pre> <p>Where the model is very straight forward:</p> <pre><code>public class ServiceMetadata { public int ServiceMetadataId { get; set; } public string ServiceName { get; set; } public string Description { get; set; } public ObjectState? State { get; set; } public DateTime? LastUpdated { get; set; } } </code></pre> <p>And it is mapped through the default:</p> <pre><code>ODataModelBuilder modelBuilder = new ODataConventionModelBuilder(); </code></pre> <p><strong>The Client</strong> is also very simple taken using AngularJs and partially from the Todo example: <a href="http://www.breezejs.com/samples/todo-angular" rel="nofollow">http://www.breezejs.com/samples/todo-angular</a> </p> <pre><code>breeze.config.initializeAdapterInstance("modelLibrary", "backingStore", true); var serviceName = 'http://localhost:8081/odata/'; breeze.config.initializeAdapterInstances({ dataService: "OData" }); var manager = new breeze.EntityManager(serviceName); manager.enableSaveQueuing(true); </code></pre> <p>The actual Posting is done using the default createEntity() method:</p> <pre><code>function createServiceMetadata(initialValues) { return manager.createEntity('ServiceMetadata', initialValues); } </code></pre> <p>And the whole thing looks like:</p> <pre><code> serviceMetadatas.createServiceMetadata({ ServiceName: $scope.newServiceName, Description: $scope.newServiceDescription }); serviceMetadatas.saveChanges(); </code></pre> <p><br/> However, the request is not being transferred to the correct controller (ServiceMetadatasController which inherits from EntitySetController), or any other controller for that matter. <br/> The HTTP request looks like this:</p> <pre><code> POST http://localhost:8081/odata/$batch HTTP/1.1 Host: localhost:8081 User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0 Accept: multipart/mixed Accept-Language: he-IL,he;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate DataServiceVersion: 2.0 Content-Type: multipart/mixed; charset=UTF-8;boundary=batch_4f09-d7cf-dd99 MaxDataServiceVersion: 2.0 Referer: http://localhost:9000/ Content-Length: 580 Origin: http://localhost:9000 Connection: keep-alive Pragma: no-cache Cache-Control: no-cache --batch_4f09-d7cf-dd99 Content-Type: multipart/mixed; boundary=changeset_ca0c-06b7-ddbe --changeset_ca0c-06b7-ddbe Content-Type: application/http Content-Transfer-Encoding: binary POST ServiceMetadatas HTTP/1.1 Content-ID: 1 DataServiceVersion: 2.0 Accept: application/atomsvc+xml;q=0.8, application/json;odata=verbose;q=0.5, */*;q=0.1 Content-Type: application/json;odata=verbose MaxDataServiceVersion: 2.0 {"ServiceMetadataId":-1,"ServiceName":"sdf sdf","Description":"sd fgs df","LastUpdated":null} --changeset_ca0c-06b7-ddbe-- --batch_4f09-d7cf-dd99-- </code></pre> <p>And the response:</p> <pre><code> HTTP/1.1 202 Accepted Cache-Control: no-cache Pragma: no-cache Content-Type: multipart/mixed; boundary=batchresponse_966d4460-e00e-4900-b1c9-85b17081cfac Expires: -1 Server: Microsoft-IIS/8.0 Access-Control-Allow-Origin: http://localhost:9000 Access-Control-Allow-Credentials: true DataServiceVersion: 2.0 X-AspNet-Version: 4.0.30319 X-SourceFiles: =?UTF-8?B?QzpcVXNlcnNcVG9tZXJcRG9jdW1lbnRzXFZpc3VhbCBTdHVkaW8gMjAxMlxQcm9qZWN0c1xFYXN5Qml6eVxFYXN5Qml6eS5XZWJBUElcb2RhdGFcJGJhdGNo?= X-Powered-By: ASP.NET Date: Sun, 15 Sep 2013 14:32:39 GMT Content-Length: 443 --batchresponse_966d4460-e00e-4900-b1c9-85b17081cfac Content-Type: multipart/mixed; boundary=changesetresponse_44da5dcf-877d-4041-a82b-c51d06a4e9a4 --changesetresponse_44da5dcf-877d-4041-a82b-c51d06a4e9a4 Content-Type: application/http Content-Transfer-Encoding: binary HTTP/1.1 406 Not Acceptable Content-ID: 1 --changesetresponse_44da5dcf-877d-4041-a82b-c51d06a4e9a4-- --batchresponse_966d4460-e00e-4900-b1c9-85b17081cfac-- </code></pre> <p>Any idea what the hack is going on? B.T.W GET requests works great.</p> <p>P.S. After looking at couple of demos, I though the using BreezeJS will be straight forward considering WebApi and OData.<br/> I must say it is <strong>Far</strong> from being easy to configure this JS library. I hope it will turn out to be hard-to-setup but easy-to-use.</p> <p>Thanks.</p> <p><strong>@UPDATE</strong> See <strong>Javier</strong>'s great answer!!</p> <p>In after digging allllot on the breeze code, I came to realize that the problem is laying deep in the createChangeRequests() of breezejs, right here:</p> <pre><code>request.requestUri = entity.entityType.defaultResourceName; </code></pre> <p>Where for some reason the defaultResouceName, completely ignores the path to this entity. Long story short, the following is a hack to resolve:</p> <pre><code>manager.metadataStore.getEntityType(ENTITY_TYPE).setProperties({defaultResourceName: THE_MISSING_PART_FROM_THE_URL + ENTITY_TYPE}); manager.createEntity(ENTITY_TYPE, values); </code></pre> <p>Not very nice, but still works!</p>
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    1. COFew notes - it looks like you are trying to post data of type X while the server is expecting type Y. As far as configuration, think of how much more difficult it would be to create and set up your own data library.
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    2. COHow do you conclude the types are different? Thanks!
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    3. COhttp://www.odata.org/documentation/odata-v2-documentation/operations/ check out the section describing why you get a 406
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