Monday, June 04, 2018

Conventions in .NET API method names

In .NET APIs we usually adorn the action methods with [Http<HTTP method>] attributes, like HttpGetAttribute or AcceptVerbsAttribute, to set the HTTP methods that are accepted. However, there are conventions on the names of the methods that make them work when such attributes are not used. How does ASP.Net determine which methods on a controller are considered "actions"? The documentation explains this, but the information is hidden in one of the paragraphs:
  1. Attributes as described above: AcceptVerbs, HttpDelete, HttpGet, HttpHead, HttpOptions, HttpPatch, HttpPost, or HttpPut.
  2. Through the beginning of the method name: "Get", "Post", "Put", "Delete", "Head", "Options", or "Patch"
  3. If none of the rules above apply, POST is assumed

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