How do I post JSON String in console application [Answered] RSS

• • Reply
  neerajkumarm...

  Member

  58 Points

  176 Posts

  How do I post JSON String in console application

  May 19, 2020 11:25 AM|neerajkumarmodi|LINK

  Hi Support,

  I can use Postman or Insomnia to post the data and get result, same way i want to implement in console application,but i am unable to find way to pass my json string 

  Below is the json string i am passing to post using postman or insomnia

  	{
  	"source": {
  		"id": "cdl",
  		"emp": "test",
  		"pass": "0000",
  		"work": {
  			"typ": "lo",
  			"stn": "mo"
  		}
  	},
  	"ver": "2.0",
  	"tok": "",
  	"alive": false,
  	"single": true,
  	"trans": [
  		{
  			"cms": [
  				{
  					"cm": {
  						"name": "findname",
  						"u_no": "test",
  						"u_part_n": ""
  					}
  				}
  			],
  			"u": {
  				"u_id": "test",
  				"p_no": "",
  				"qty": -1,
  				"rev": ""
  			},
  			"r_unit": true
  		}
  	]
  }
  
  

  Now I am using below code to pass it inside console application but looks it is not the correct way

  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  
  using System.Net;
  using System.Net.NetworkInformation;
  using System.Net.Sockets;
  using System.Net.Http;
  
  using System.Data.SqlClient;
  using System.Data;
  using System.IO;
  
  
  namespace PostAPI
  {
      class Program
      {
          static void Main(string[] args)
          {
              MainAsync().Wait();
          }
          static async Task MainAsync()
          {
              string myJson = @"	{
  	'source': {
  		'id': 'cdl',
  		'emp': 'test',
  		'pass': '0000',
  		'work': {
  			'typ': 'lo',
  			'stn': 'mo'
  		}
  	},
  	'ver': '2.0',
  	'tok': '',
  	'alive': false,
  	'single': true,
  	'trans': [
  		{
  			'cms': [
  				{
  					'cm': {
  						'name': 'findname',
  						'u_no': 'test',
  						'u_part_n': ''
  					}
  				}
  			],
  			'u': {
  				'u_id': 'test',
  				'p_no': '',
  				'qty': -1,
  				'rev': ''
  			},
  			'r_unit': true
  		}
  	]
  }
  
  
  ";
  
              using (var client = new HttpClient())
              {
                  var response = await client.PostAsync("https://xyz.w.com:99006/test", new StringContent(myJson, Encoding.UTF8, "application/json"));
              }
  
          }
      }
  }
  

  Error:{StatusCode: 500, ReasonPhrase: '[json.exception.parse_error.101] parse error at line 2, column 2: syntax error while parsing object key - invalid literal; last read: '<U+0009>{<U+000D><U+000A><U+0009>â'; expected string literal'

  Thanks!

  Manish
  
• • Reply
  bruce (sqlwo...

  All-Star

  58184 Points

  15655 Posts

  Re: How do I post JSON String in console application

  May 19, 2020 02:43 PM|bruce (sqlwork.com)|LINK

  Your json is not valid. Unlike JavaScript, single quotes are not supported.

  bruce (sqlwork.com)
• • Reply
  yij sun

  Contributor

  3730 Points

  1417 Posts

  Re: How do I post JSON String in console application

  May 20, 2020 07:21 AM|yij sun|LINK

  Hi neerajkumarmodi,

  Accroding to your description,as far as I think,your json string format is wrong.

  Just like this:

  var json = "{ \"source\": {\"id\":\"cdl\",\"emp\":\"test\",\"0000\"}," +
                 "\"ver\":\"2.0\"};

  var record = JsonConvert.DeserializeObject(json);

  Best regards,

  Yijing Sun

  .NET forums are moving to a new home on Microsoft Q&A, we encourage you to go to Microsoft Q&A for .NET for posting new questions and get involved today.
• • Reply
  PatriceSc

  All-Star

  48510 Points

  18072 Posts

  Re: How do I post JSON String in console application

  May 20, 2020 07:49 AM|PatriceSc|LINK

  Hi,

  Another option could be to take advantage of the PostAsJsonAsync extension method: https://docs.microsoft.com/en-us/previous-versions/aspnet/hh944339(v=vs.118)

  This way you can post a .NET object (possibly declared using an anonymous type) and let a json serializer to produce the corresponding json for you.

• • Reply
  neerajkumarm...

  Member

  58 Points

  176 Posts

  Re: How do I post JSON String in console application

  May 21, 2020 05:02 AM|neerajkumarmodi|LINK

  It accepted double quotes like below

  ""source"": {
  		""id"": ""cdl"",

  Manish
  
• • Reply
  RJ BOY

  None

  0 Points

  3 Posts

  Re: How do I post JSON String in console application

  May 23, 2020 05:46 PM|RJ BOY|LINK

  Hi,

   I would suggest you first create the object then serialization in JSON format.