This is for creating a React Native Jira Issue collector In-App! NOTE: You’ll need to import `import base64 from 'react-native-base64';

jira-ticketing.js

// This code sample uses the 'node-fetch' library:
// https://www.npmjs.com/package/node-fetch
const fetch = require("node-fetch");
 
const bodyData = `{
 "update": {},
 "fields": {
   "summary": "Main order flow broken",
   "parent": {
     "key": "PROJ-123"
   },
   "issuetype": {
     "id": "10000"
   },
   "components": [
     {
       "id": "10000"
     }
   ],
   "customfield_20000": "06/Jul/19 3:25 PM",
   "customfield_40000": {
     "type": "doc",
     "version": 1,
     "content": [
       {
         "type": "paragraph",
         "content": [
           {
             "text": "Occurs on all orders",
             "type": "text"
           }
         ]
       }
     ]
   },
   "customfield_70000": [
     "jira-administrators",
     "jira-software-users"
   ],
   "project": {
     "id": "10000"
   },
   "description": {
     "type": "doc",
     "version": 1,
     "content": [
       {
         "type": "paragraph",
         "content": [
           {
             "text": "Order entry fails when selecting supplier.",
             "type": "text"
           }
         ]
       }
     ]
   },
   "reporter": {
     "id": "5b10a2844c20165700ede21g"
   },
   "fixVersions": [
     {
       "id": "10001"
     }
   ],
   "customfield_10000": "09/Jun/19",
   "priority": {
     "id": "20000"
   },
   "labels": [
     "bugfix",
     "blitz_test"
   ],
   "timetracking": {
     "remainingEstimate": "5",
     "originalEstimate": "10"
   },
   "customfield_30000": [
     "10000",
     "10002"
   ],
   "customfield_80000": {
     "value": "red"
   },
   "security": {
     "id": "10000"
   },
   "environment": {
     "type": "doc",
     "version": 1,
     "content": [
       {
         "type": "paragraph",
         "content": [
           {
             "text": "UAT",
             "type": "text"
           }
         ]
       }
     ]
   },
   "versions": [
     {
       "id": "10000"
     }
   ],
   "duedate": "2019-05-11",
   "customfield_60000": "jira-software-users",
   "customfield_50000": {
     "type": "doc",
     "version": 1,
     "content": [
       {
         "type": "paragraph",
         "content": [
           {
             "text": "Could impact day-to-day work.",
             "type": "text"
           }
         ]
       }
     ]
   },
   "assignee": {
     "id": "5b109f2e9729b51b54dc274d"
   }
 }
}`;
 
fetch("https://your-domain.atlassian.com/rest/api/3/issue", {
 method: "POST",
 headers: {
   Authorization: `Basic ${Buffer.from(
     "email@example.com:<api_token>"
   ).toString("base64")}`,
   Accept: "application/json",
   "Content-Type": "application/json",
 },
 body: bodyData,
})
 .then((response) => {
   console.log(`Response: ${response.status} ${response.statusText}`);
   return response.text();
 })
 .then((text) => console.log(text))
 .catch((err) => console.error(err));
 
// Notes:
// fields, issue-type, project, and summary are mandatory for a basic call.
// Issue Type id can be got by inspecting the "issue-type" when creating an issue,
// It's under the div id="issue-type-single-select" in the input element
// Ex: <input type="text" value="10101" data-container-class="issuetype-ss" class="issuetype-field aui-ss-select" id="issuetype" name="issuetype" style="display: none;">
// You'll need to connect an api token to this. Select "Account Settings" in the top right corner under your avatar. Then "Security" then "create and manager api tokens"
// For the projectId, go to project settings, inspect automation and find something like this:
// <a draggable="false" class="css-1xfx3ew " href="/plugins/servlet/ac/com.codebarrel.addons.automation/cb-automation-project-config?project.key=AJ&amp;project.id=10000" target="_self"><div class="css-1oyzili"><span class="css-ek7kgj"><span class="css-5mekwu" data-item-title="true">Automation</span></span></div></a>

react-native-implementation.js

callMe() {
   const bodyData = `{
     "fields": {
       "summary": "This was sent from a mobile app",
       "issuetype": {
         "id": "10106"
       },
       "project": {
         "id": "10012"
       }
     }
   }`;
   // https://domain.atlassian.net/projects/AJ/board
   fetch('https://domain.atlassian.net/rest/api/3/issue', {
     method: 'POST',
     headers: {
       Authorization: `Basic ${base64
         .encode('me@domain.com:JGTibcJZo0otv36afUix9DFF')
         .toString('base64')}`,
       Accept: 'application/json',
       'Content-Type': 'application/json',
     },
     body: bodyData,
   })
     .then((response) => {
       console.log(`Response: ${response.status} ${response.statusText}`);
       return response.text();
     })
     .then((text) => console.log(text))
     .catch((err) => console.error(err));
 }


//NOTE: You’ll need to import `import base64 from 'react-native-base64';

@valentinbegnis there is a secondary API endpoint for attachments/files you'll have to hit - and then it'll return an ID of that file and I believe you need to add that into the first endpoint for the ticket:
Step 1. Attachment API
Step 2. Get ID from success
Step 3. New issue API endpoint including the ID from step 2