fixed #116

README.md

@@ -115,6 +115,7 @@ $iss = new IssueService(new ArrayConfiguration(
 - [Create Sub Task](#create-sub-task)
 - [Add Attachment](#add-attachment)
 - [Update issue](#update-issue)
+    - [Update Labels](#update-labels)
 - [Change assignee](#change-assignee)
 - [Remove issue](#remove-issue)
 - [Add comment](#add-comment)
@@ -633,6 +634,48 @@ try {
 
 If you want to change the custom field type when updating an issue, you can call the *addCustomField* function just as you did for creating issue.
 
+
+##### Update labels
+
+This function is a convenient wrapper for add or remove label in the issue.
+
+```php
+<?php
+require 'vendor/autoload.php';
+
+use JiraRestApi\Issue\IssueService;
+use JiraRestApi\JiraException;
+
+try {
+    $issueKey = 'TEST-123';
+
+    $issueService = new IssueService();
+
+    $addLabels = [
+        'triaged', 'customer-request', 'sales-request'
+    ];
+
+    $removeLabel = [
+        'will-be-remove', 'this-label-is-typo'
+    ];
+
+    $ret = $issueService->updateLabels($issueKey,
+            $addLabels,
+            $removeLabel,
+            $notifyUsers = false
+        );
+
+    var_dump($ret);
+} catch (JiraException $e) {
+    $this->assertTrue(false, 'testSearch Failed : '.$e->getMessage());
+}
+```
+
+
+### #Change Assignee
+
+
+
 #### Change Assignee
 
 [See Jira API reference](https://docs.atlassian.com/software/jira/docs/api/REST/7.6.1/#api/2/issue-assign)

src/Issue/IssueService.php

@@ -2,6 +2,7 @@
 
 namespace JiraRestApi\Issue;
 
+use JiraRestApi\Dumper;
 use JiraRestApi\JiraException;
 
 class IssueService extends \JiraRestApi\JiraClient
@@ -927,4 +928,42 @@ public function getIssueSecuritySchemes($securityId)
 
         return $res;
     }
+
+    /**
+     * convenient wrapper function for add or remove labels.
+     *
+     * @param string|int $issueIdOrKey
+     * @param array|null $addLablesParam
+     * @param array|null $removeLabelsParam
+     * @param bool $notifyUsers
+     *
+     * @return Issue|object class
+     *
+     * @throws JiraException
+     */
+    public function updateLabels($issueIdOrKey, $addLablesParam, $removeLabelsParam, $notifyUsers = true)
+    {
+        $labels = [];
+        foreach($addLablesParam as $a) {
+            array_push($labels, ["add" => $a]);
+        }
+
+        foreach($removeLabelsParam as $r) {
+            array_push($labels, ["remove" => $r]);
+        }
+
+        $postData = json_encode([
+            "update" => [
+                "labels" => $labels
+            ]
+        ], JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT );
+
+        $this->log->addInfo("Update labels=\n".$postData);
+
+        $queryParam = '?'.http_build_query(["notifyUsers" => $notifyUsers]);
+
+        $ret = $this->exec($this->uri."/$issueIdOrKey".$queryParam, $postData, 'PUT');
+
+        return $ret;
+    }
 }