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odata

How to build the EDM model for the OData service which having return type of KeyValuePair

Post Method:

[HttpPost]
public Dictionary<string, object> PostData(ODataActionParameters param)
{     
}

To Build EDM Model:

 ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
 var customSave = builder.EntityType<Model>().Collection.Action("PostData");

How to set the return of an action "customSave"?

Solution 
  •  ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
 var customSave = builder.EntityType<Model>().Collection.Action("PostData");
 customSave.ReturnsCollection<Dictionary<string, object>>();

    To establish the return type of the Action used when the return type is a collection of either Primitive or ComplexTypes.