在不妨碍.Net Web API 中的现有功能的情况下，使用额外的输入更新 POST 端点

Question

Consider the scenario where I have a POST endpoint which takes an ID in route parameter and a specific request payload Range . I want to update this endpoint to also include an additional parameter Type by providing it into POST request payload.

I have considered multiple options here:

• Updating the route parameter to provided additional parameter in route. [Route("updateItem/{id:int}/{type}")] .
• Changing the request payload DTO Range on server and update the existing consumers.
• Using [FromBody] in the controller arguments.

However these approaches will hamper the existing consumers of the API.

 [HttpPost]
 [Route("updateItem/{id:int}")]
 public IHttpActionResult UpdateItem(int id, Range range) 
 { 
    return Ok(Service.UpdateItem(id, range)); 
 } 

Is there a way to pass on the information of Type to the API without impacting existing consumers of the API?

Answer 1

Try this

[HttpPost]
 [Route("updateItem/{id:int}"/{type:Type?})]
 public IHttpActionResult UpdateItem(int id, Type? type=null, Range range) 
 { 
 if (type != null)
{ 
    return Ok(Service.UpdateItem(id, range)); 
    }
    else
    {
    //implementation for type parameter
    }
 }