How to send a JSON object to my API through customization project ?

Hi @ifelix!

Sending an http post request from Acumatica is petty much the same as sending one from any .net application.
Here is a code sample showing how to do it inside an Acumatica Action but the same process will work in other places also.

        public PXAction<MasterTable> apiPostTest;
        [PXUIField(DisplayName = "API Post Test")]
        [PXButton]
        public virtual void ApiPostTest()
        {
            // your url goes here
            string url = "https://httpbin.org/post";
            // your json body text goes here
            string jsonBody = "{ \"message\" : \"post message\"}";

            using (var client = new HttpClient())
            {
                var content = new StringContent(jsonBody, Encoding.UTF8, 
                   "application/json");

                // send the post request and store the return value in results 
                var result = client.PostAsync(url, content).Result;

                // check to see if the post request was successful
                if (result.IsSuccessStatusCode)
                {
                    var returnString = result.Content.ReadAsStringAsync();
                }
                else
                {
                    // a non success http status code was returned, i.e. not 200
                }
            }
        }

The above code uses HttpClient which System.Net.Http dll/using statement. For me visual studio will automatically add that to my project.
Also note, the above code runs the request synchronously, if you want to run it asynchronously that is also possible.

Let me know if you run into any issues or have follow up questions!

Philip Engesser