not Accept any json in post method of webapi controller

Question

Hello all,

I am working on writing one API which is having post method. in that method I had set string property as FromBody. like below

TryItOut([FromBody] string body)

but when I am sending any json through swagger its just read first character of parameter. like

e.g. Json

{
"data": [{
"type": "articles",
"id": "1",
"attributes": {
"title": "JSON:API paints my bikeshed!",
"body": "The shortest article. Ever."
}
}],
"included": [
{
"type": "people",
"id": "42",
"attributes": {
"name": "John"
}
}
]
}

Then its reads only "{" charactor I tired with text/plain but not read complete json.

can any one help me to resolve this issue. how can I read complete json from parameter.

Thanks in advance.

Omkar

Answer 1

Hi @Omkar Mhaiskar ,

You could refer to the following method to accept the data from the request body.

1. Based on the json string to create a model and get the data via the model. For example, according to the json string to create a JsonResultModel model

   public class JsonResultModel  
   {  
       public List<Datum> data { get; set; }  
       public List<Included> included { get; set; }  
   }  
   public class Attributes  
   {  
       public string title { get; set; }  
       public string body { get; set; }  
       public string name { get; set; }  
   }  
   
   public class Datum  
   {  
       public string type { get; set; }  
       public string id { get; set; }  
       public Attributes attributes { get; set; }  
   }  
   
   public class Included  
   {  
       public string type { get; set; }  
       public string id { get; set; }  
       public Attributes attributes { get; set; }  
   }  
   

   Then, in the API post method, set it as the parameter:

   [HttpPost]  
   public void Post([FromBody] JsonResultModel result)  
   {  
   }  
   

   The result is like this:
2. Transfer the json string as a string type parameter. The API post method is like this:

   [HttpPost]  
   public void Post([FromBody] string result)  
   {  
   }  
   

   When calling the API via swagger, the parameter is a string value. "{\"data\":[{\"type\":\"articles\",\"id\":\"1\",\"attributes\":{\"title\":\"JSON:APIpaintsmybikeshed!\",\"body\":\"Theshortestarticle.Ever.\"}}],\"included\":[{\"type\":\"people\",\"id\":\"42\",\"attributes\":{\"name\":\"John\"}}]}" The result is like this: Then, in the Post method, you can deserialize the json string to the object

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Best regards,
Dillion