Jira post error - expecting comma to separate OBJECT entries


I am trying to use the below code to create new project issue in my jira,

using System.Text;
using System.Net.Http;
using System.Json;
using System.Web.Script.Serialization;

namespace Test
    class Class1
        public void CreateIssue()
            string message = "Hai \"!Hello\" ";
            string data = "{\"fields\":{\"project\":{\"key\":\"TP\"},\"summary\":\"" + message +    "\",\"issuetype\":{\"name\": \"Bug\"}}}";
            System.Net.Http.HttpClient client = new System.Net.Http.HttpClient();
            client.DefaultRequestHeaders.ExpectContinue = false;
            client.Timeout = TimeSpan.FromMinutes(90);
            byte[] crdential = UTF8Encoding.UTF8.GetBytes("adminName:adminPassword");
            client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(crdential));
            client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));     
            System.Net.Http.HttpContent content = new StringContent(data, Encoding.UTF8, "application/json");
                        HttpResponseMessage response = requesTask.Result;
                        response.Content.ReadAsStringAsync().ContinueWith(readTask =>
                            var out1 = readTask.Result;
                    catch (Exception exception)
            catch (Exception exc)

It throws the issue like below:

"{\"errorMessages\":[\"Unexpected character ('!' (code 33)): was expecting comma to separate OBJECT entries\\n at [Source: org.apache.catalina.connector.CoyoteInputStream@1ac4eeea; line: 1, column: 52]\"]}"

But i use the same json file in Firefox Poster , i have created the issue.

Json file : {"fields":{"project":{"key":"TP"},"summary":"Hai \"!Hello\" ",\"issuetype\":{\"name\": \"Bug\"}}}"

1 answer

1 accepted

0 votes
Penny Wyatt Atlassian Team May 12, 2013

The issue is that you are not JSON-encoding the message when concatenating it into the string.

This line of Java:

string message = "Hai \"!Hello\" ";

Will put this value into memory:

Hai "!Hello"

And hence this line of Java:

string data = "{\"fields\":{\"project\":{\"key\":\"TP\"},\"summary\":\"" + message + "\",\"issuetype\":{\"name\": \"Bug\"}}}";

Will put this value into memory:

{"fields":{"project":{"key":"TP"},"summary":"Hai "!Hello"","issuetype":{"name": "Bug"}}}

You can see there's a syntax error there in the summary part - the double quotes inside the message are breaking your JSON.

Rather than generating JSON by string concatenation, which is pretty much guaranteed to give you functionality and security issues, I recommend using a JSON library instead. We use Jersey in JIRA but any would do.

Suggest an answer

Log in or Join to answer
Community showcase
Sarah Schuster
Posted Jan 29, 2018 in Jira

What are common themes you've seen across successful & failed Jira Software implementations?

Hey everyone! My name is Sarah Schuster, and I'm a Customer Success Manager in Atlassian specializing in Jira Software Cloud. Over the next few weeks I will be posting discussion topics (8 total) to ...

2,815 views 11 18
Join discussion

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you
Atlassian Team Tour

Join us on the Team Tour

We're bringing product updates and pro tips on teamwork to ten cities around the world.

Save your spot