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[Source] ASP.NET WebApi uses MessageHandlers to unify the return interface model format

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Posted on 10/28/2020 1:29:28 PM | | | |
Scenario: When the frontend calls the backend API, we want the backend to return a unified JSON model interface, and the data returned by different interfaces is wrapped in the data field of the unified interface.

The original approach was to return the same model object for all interface settings, which could be done, but it was a bit verbose.

In the ASP.NET WebAPI, a full HTTP request, the flowchart is as follows:



My own understanding of MessageHandlers is the Middleware middleware in ASP.NET Core.

For example:

It turns out to return json content:

["value1","itsvse.com"]
We would like to return the following format:

{"success":true,"message":"ok","data":["value1","itsvse.com"]}
All interface return models contain fields such as success, message, etc.

Unified response entity model


Create a new ApiHandler object with the following code:

Register a custom MessageHandlers in the WebApiConfig configuration file with the following code:

Use the default ValuesController controller in the new project, and modify it as follows:

Try accessing our API interface, the rendering is as follows:



(End)





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