diff --git a/.env b/.env
index 6f4f11c9..11adbffe 100644
--- a/.env
+++ b/.env
@@ -21,7 +21,7 @@ APP_SECRET=5dd8ffca252d95e8b4fb5b2d15310e92
 
 SYMFONY_DOCS_SECRET=''
 SYMFONY_SECRET=''
-
+BOT_USERNAME='carsonbot-test'
 ###> knplabs/github-api ###
 #GITHUB_TOKEN=XXX
 ###< knplabs/github-api ###
diff --git a/.env.test b/.env.test
index bda08f6f..f887c229 100644
--- a/.env.test
+++ b/.env.test
@@ -5,3 +5,5 @@ SYMFONY_DEPRECATIONS_HELPER=999999
 PANTHER_APP_ENV=panther
 SYMFONY_DOCS_SECRET=''
 SYMFONY_SECRET=''
+
+BOT_USERNAME='carsonbot-test'
diff --git a/config/services.yaml b/config/services.yaml
index 471f1655..f58badd1 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -42,6 +42,9 @@ services:
         autowire: true
         autoconfigure: true
 
+        bind:
+            string $botUsername: '%env(BOT_USERNAME)%'
+
     App\:
         resource: '../src/*'
         exclude: '../src/{DependencyInjection,Subscriber,Kernel.php,GitHubEvents.php}'
@@ -62,6 +65,10 @@ services:
         factory: ['@Github\Client', api]
         arguments: [pullRequest]
 
+    Github\Api\Search:
+        factory: ['@Github\Client', api]
+        arguments: [search]
+
     Github\Api\Issue\Labels:
         factory: ['@Github\Api\Issue', labels]
 
diff --git a/src/Api/Issue/GithubIssueApi.php b/src/Api/Issue/GithubIssueApi.php
index 6592c58d..19205fd8 100644
--- a/src/Api/Issue/GithubIssueApi.php
+++ b/src/Api/Issue/GithubIssueApi.php
@@ -3,15 +3,50 @@
 namespace App\Api\Issue;
 
 use App\Model\Repository;
+use Github\Api\Issue;
 use Github\Api\Issue\Comments;
+use Github\Api\Search;
 
 class GithubIssueApi implements IssueApi
 {
     private $issueCommentApi;
+    private $botUsername;
+    private $issueApi;
+    private $searchApi;
 
-    public function __construct(Comments $issueCommentApi)
+    public function __construct(Comments $issueCommentApi, Issue $issueApi, Search $searchApi, string $botUsername)
     {
         $this->issueCommentApi = $issueCommentApi;
+        $this->issueApi = $issueApi;
+        $this->searchApi = $searchApi;
+        $this->botUsername = $botUsername;
+    }
+
+    public function open(Repository $repository, string $title, string $body, array $labels)
+    {
+        $params = [
+            'title' => $title,
+            'labels' => $labels,
+            'body' => $body,
+        ];
+
+        $issueNumber = null;
+        $exitingIssues = $this->searchApi->issues(sprintf('repo:%s "%s" is:open author:%s', $repository->getFullName(), $title, $this->botUsername));
+        foreach ($exitingIssues['items'] ?? [] as $issue) {
+            $issueNumber = $issue['number'];
+        }
+
+        if (null === $issueNumber) {
+            $this->issueApi->create($repository->getVendor(), $repository->getName(), $params);
+        } else {
+            unset($params['labels']);
+            $this->issueApi->update($repository->getVendor(), $repository->getName(), $issueNumber, $params);
+        }
+    }
+
+    public function close(Repository $repository, $issueNumber)
+    {
+        $this->issueApi->update($repository->getVendor(), $repository->getName(), $issueNumber, ['state' => 'closed']);
     }
 
     /**
diff --git a/src/Api/Issue/IssueApi.php b/src/Api/Issue/IssueApi.php
index 7a6f1641..6ddc30bb 100644
--- a/src/Api/Issue/IssueApi.php
+++ b/src/Api/Issue/IssueApi.php
@@ -12,5 +12,15 @@
  */
 interface IssueApi
 {
+    /**
+     * Open new issue or update existing issue.
+     */
+    public function open(Repository $repository, string $title, string $body, array $labels);
+
     public function commentOnIssue(Repository $repository, $issueNumber, string $commentBody);
+
+    /**
+     * Close an issue or a pull request.
+     */
+    public function close(Repository $repository, $issueNumber);
 }
diff --git a/src/Api/Issue/NullIssueApi.php b/src/Api/Issue/NullIssueApi.php
index be4675b1..c38b2513 100644
--- a/src/Api/Issue/NullIssueApi.php
+++ b/src/Api/Issue/NullIssueApi.php
@@ -6,7 +6,15 @@
 
 class NullIssueApi implements IssueApi
 {
+    public function open(Repository $repository, string $title, string $body, array $labels)
+    {
+    }
+
     public function commentOnIssue(Repository $repository, $issueNumber, string $commentBody)
     {
     }
+
+    public function close(Repository $repository, $issueNumber)
+    {
+    }
 }