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