PHP runtime for AWS Lambda
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

60 lines
1.9 KiB

#! /opt/bin/php -c /opt/etc/php.ini
<?php
// This invokes Composer's autoloader so that we'll be able to use Guzzle and any other 3rd party libraries we need.
require __DIR__ . '/vendor/autoload.php';
function getNextRequest()
{
$client = new \GuzzleHttp\Client();
$response = $client->get('http://' . $_ENV['AWS_LAMBDA_RUNTIME_API'] . '/2018-06-01/runtime/invocation/next');
return [
'invocationId' => $response->getHeader('Lambda-Runtime-Aws-Request-Id')[0],
'payload' => json_decode((string)$response->getBody(), true)
];
}
function sendResponse($invocationId, $response)
{
$client = new \GuzzleHttp\Client();
$client->post(
'http://' . $_ENV['AWS_LAMBDA_RUNTIME_API'] . '/2018-06-01/runtime/invocation/' . $invocationId . '/response',
['body' => $response]
);
}
function sendError($invocationId, $error)
{
$client = new \GuzzleHttp\Client();
$client->post(
'http://' . $_ENV['AWS_LAMBDA_RUNTIME_API'] . '/2018-06-01/runtime/invocation/' . $invocationId . '/error',
['body' => $error]
);
}
// This is the request processing loop. Barring unrecoverable failure, this loop runs until the environment shuts down.
do {
// Ask the runtime API for a request to handle.
$request = getNextRequest();
try {
// Obtain the function name from the _HANDLER environment variable and ensure the function's code is available.
$handlerFunction = array_slice(explode('.', $_ENV['_HANDLER']), -1)[0];
require_once $_ENV['LAMBDA_TASK_ROOT'] . '/src/' . $handlerFunction . '.php';
// Execute the desired function and obtain the response.
$response = $handlerFunction($request['payload']);
// Submit the response back to the runtime API.
sendResponse($request['invocationId'], $response);
} catch (Throwable $e) {
sendError($request['invocationId'], (string)$e);
}
} while (true);