Integrate Gitlab with Flock. This allows users to: 1. Send messages to the flock channel via webhook. 2 Send json payload to any webhook url 3. Only send message when MR is merged with master branch only

flock_gitlab_mr.php

<?php
function isGetParamPresent($param)
{
    return isset($_GET[$param]) && !empty($_GET[$param]);
}

$rawData = trim(file_get_contents("php://input"));
$decoded_data = json_decode($rawData, true);

$FLOCK_API_URL = "https://api.flock.com/hooks/sendMessage/";

$repoName = isGetParamPresent('repoName') ? $_GET['repoName'] : $decoded_data['repository']['name'];
$projectMessage = isGetParamPresent('skipProjectMessage') && $_GET['skipProjectMessage'] == "true" ? "" : " to {$repoName}";

$title = $decoded_data["object_attributes"]["title"];
$merge_request_creator = $decoded_data["object_attributes"]["last_commit"]["author"]["name"];

$upload_message = "Uploading{$projectMessage}: {$title} (@{$merge_request_creator})";

$event = $decoded_data["object_kind"];
$state = $decoded_data["object_attributes"]["state"];
$targetBranch = $decoded_data["object_attributes"]["target_branch"];

$API_URL = "";
$JSON_MESSAGE_KEY = "text";
if (isGetParamPresent('flockApiKey')) {
    $API_URL = $FLOCK_API_URL . $_GET['flockApiKey'];
}
if (isGetParamPresent('apiUrl')) {
    $API_URL = $_GET['apiUrl'];
}
if (isGetParamPresent('apiMessageKey')) {
    $JSON_MESSAGE_KEY = $_GET['apiMessageKey'];
}

if ($API_URL != "" && $JSON_MESSAGE_KEY != "" && $event == "merge_request" && $state == "merged" && $targetBranch == "master") {
    $data = array(
        $JSON_MESSAGE_KEY => $upload_message
    );
    $content = json_encode($data);
    echo $content;

    $curl = curl_init($API_URL);
    curl_setopt($curl, CURLOPT_HEADER, false);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array("Content-type: application/json"));
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $content);
    $result = curl_exec($curl);
    var_dump($result);
    curl_close($curl);
} else {
    $message = "Reasons for not sending message:";
    if ($API_URL == "") {
        $message .= "\n- API URL is empty. Please send query-param: flockApiKey or apiUrl";
    }
    if ($JSON_MESSAGE_KEY == "") {
        $message .= "\n- apiMessageKey is empty";
    }
    if ($event !== "merge_request") {
        $message .= "\n- eventType: {$event} != merge_request";
    }
    if ($state !== "merged") {
        $message .= "\n- state: {$state} != merged";
    }
    if ($targetBranch !== "master") {
        $message .= "\n- targetBranch: {$targetBranch} != master";
    }
    echo $message;
}