CODEWITHSUNDEEP
androidjsonandroid-volley
Ido
Ido

Reputation: 73

Post json as string to server using Volley

I'm trying to send a JSON as string (not as object) to the server (in this case it's a WebAPI). I always get a error code 500.

I succeeded to get response from the server when the request was GET and without sending data to the server. this achieved by JsonObjectRequest.

Now, I trying to send a POST request with JSON as string. For that I try

Before using volley, I used other methods to send request to server which require to simply build an object, serialized to json (string) and pass via StringEntity.

I can't understand where should I pass the json in the request. or what I'm doing wrong.

Upvotes: 3

Views: 2562

Answers (2)

GoRoS
GoRoS

Reputation: 5375

I don't exactly understand why do you want to send the JSON as a string and not as an object. Nevertheless, in your WebAPI endpoint you should put a breakpoint in the Post method of the ApiController and see whether the request gets there or not.

Probably, you're mixing the content-types of the request. If you want to send a simple string request from Volley, you should just use the StringRequest and send there the JSON text. Thus, in the WebAPI POST method you must get the string without being deserialized to JSON. I answered once a similar question of how this string request should be made here.

However, as I said before I would suggest using always JSON requests which includes the contentType:"application/json" header, and receive requests in the WebAPI deserialized.

Upvotes: 3

Ivan
Ivan

Reputation: 978

url = "yoururl"; StringRequest postRequest = new StringRequest(Request.Method.POST, url, 
new Response.Listener<String>() 
{
    @Override
    public void onResponse(String response) {
        // response
        Log.d("Response", response);
    }
}, 
new Response.ErrorListener() 
{
     @Override
     public void onErrorResponse(VolleyError error) {
         // error
         Log.d("Error.Response", response);
   }
} ) {     
@Override
protected Map<String, String> getParams() 
{  
        Map<String, String>  params = new HashMap<String, String>();  
        params.put("your_field", youJSONObject.toString());  

        return params;  
} }; queue.add(postRequest);

Try in this way to make the post (it should work with json obj or array)

Upvotes: 0

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