How to retrieve json parameters from postman in webapi?

If we send parameters in text format we can make use of the following code and convert it into a class object.

In your method copy the following code,

                  1.var json = await Request.Content.ReadAsStringAsync();

         

            2.clsFeilds objJson = JsonConvert.DeserializeObject<clsFeilds>(json);

In the above code stmt 1 retrieves the JSON parameters in JSON string format.

In stmt 2 when we pass the JSON string it deserializes it to a class object.

Note: To use the above code we need to make our method as ''ASYNC".

ex:

        [HttpGet]

        public async Task<string> multiple()

        {

            //        { "UserId":["12345","125545","456456","789456"]

            //} ---Sample

             var json=await Request.Content.ReadAsStringAsync();

             classname objectname=JsonConvert.DeserializeObject<classname>(json);

         }


If we send parameters in JSON format we can make use of the following code and convert it into a class object. 

Json Parameters:{"WeekEndingDates":["2019-09-08","2019-08-15"],"SupervisorID":["14202","22429"]}

ex:

          [HttpGet]

        public Task<string> WorkOrderUpdate(clsFeilds json)

        {

            //Here we can directly get the JSON parameters as class fields 

        }

In clsFeilds class,

if we want to get multiple parameters declare the field as an array type

ex: public class clsFeilds{

         public string[] SupervisorID { get; set; }

        public string[] WeekEndingDates { get; set; }

       }