RestSharp Serializing Json objects to Post parameters

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I'm working on this project that needs to serialize JSON objects to post parameters using RestSharp, below is my code:

        var request = new RestRequest();
        request.Method = Method.POST;
        request.RequestFormat = DataFormat.Json;

        return client.Execute<dynamic>(request);

What I realize is instead of adding each JSON name value pair as a post parameter, request.AddBody adds the whole JSON string as one large post parameter. My question is, is there any way to cause request.AddBody method to add each JSON name-value pair as individual post parameters? I know that request.AddParameter() does the job but that requires manual effort to add each parameter.

Instead of:

               "name":"john doe",
               "age": "12",
               "gender": "male"}

Desired Result:

     [0]:"name":"john doe"

The answer would seem to be to iterate through your jsonObject and turn each desired JSON name-value pair into a parameter. To do this you can use the request.AddParameter method in a loop which iterates through the name-value pairs of your jsonObject with something like:

foreach (var pair in jsonObject) 
    request.AddParameter(pair.Key, pair.Value); 

This is probably oversimplified, but using a library like JSON.NET, it should be quite easy to do. Then you can wrap this functionality into a nice little method somewhere and reuse at will. No manual labour.

NB: You probably want to remove the line request.RequestFormat = DataFormat.Json in your existing code, since JSON is exactly what you don't appear to want to POST.

RestSharp JSON Parameter Posting, You don't have to serialize the body yourself. Just do request.RequestFormat = DataFormat.Json; request.AddBody(new { A = "foo", B = "bar" });  The NewtonsoftJson package is the most popular JSON serializer for .NET. It handles all possible scenarios and is very configurable. Such a flexibility comes with the cost of performance. If you need something faster, please check Utf8Json or System.Text.Json serializers (below). RestSharp support Json.Net serializer via a separate package.


should do what you expect

Quote from RestSharp docs:

To add all properties for an object as parameters, use AddObject().

Request Parameters, If you have files, RestSharp will send a multipart/form-data request. Instructs the RestClient to serialize the object parameter as JSON when  In the current version of RestSharp ( you can add a JSON object to the request body with: request.AddJsonBody(new { A = "foo", B = "bar" }); This method sets content type to application/json and serializes the object to a JSON string.

Had a similar question and found this thread. Came up with a simple approach that I thought I would share in case it would help others.

The trick is to use anonymous objects along with AddJsonBody().

request.AddJsonBody(new { name = "john doe", age = "12", gender = "male" });

RestSharp will automatically serialize the anonymous object into the desired JSON...

    "name":"john doe",
    "age": "12",
    "gender": "male"

Serialization · restsharp/RestSharp Wiki · GitHub, Before, objects were serialized when added to the RestRequest by In v106.6 body parameter is serialized just before executing the request. RestSharp includes deserializers to process XML and JSON. Usage · RestSharp Blog Posts and Links · Serialization · Submission Guidelines · Usage way  Quite often I deal with strings of JSON, not nicely populated objects that I can call AddBody on a RestSharp request object for auto serialization. Fortunately RestSharp comes with a nice way of adding any raw body values to a request, you just add the raw value with the content-type as a parameter, ensuring you specify the parameter type as ParameterType.RequestBody.

Sending JSON strings with RestSharp, This post actually applies to sending any raw body using RestSharp for I can call AddBody on a RestSharp request object for auto serialization. with the content-type as a parameter, ensuring you specify the parameter  Those methods will set the proper request type and do the serialization work for you. # AddJsonBody. When you call AddJsonBody, it does the following for you: Instructs the RestClient to serialize the object parameter as JSON when making a request; Sets the content type to application/json; Sets the internal data type of the request body to DataType.Json

Working around the Json Serializer in RestSharp's RestClient : csharp, I had issues is my tests when using RestSharp's RestClient to send Json. of using the AddJsonBody method, I serialize the object with Newtonsoft and set the​  If it's a GET request, you can't have a request body and AddParameter adds values to the URL querystring. If it's a POST you can't include a POST parameter and a serialized request body since they occupy the same space. You could do a multipart POST body but this is not very common.

What is RestSharp? Code Examples, Tutorials & More, In today's post, though, we'll take a look at RestSharp specifically, its features and Automatic XML and JSON parsing, including fuzzy element name matching execution, and handling of said request, deserialization, and authentication. The response object can also be used to parse your data. How to write .NET objects to JSON (serialize) To write JSON to a string or to a file, call the JsonSerializer.Serialize method. The following example creates JSON as a string: string jsonString; jsonString = JsonSerializer.Serialize(weatherForecast); The following example uses synchronous code to create a JSON file: