Perl

Call an AWS Lambda Function

See more AWS Misc Examples

Demonstrates how to call an AWS Lambda function. Perl

use chilkat();

$success = 0;

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

$rest = chilkat::CkRest->new();

#  Connect to the Amazon AWS REST server.
#  such as https://email.us-west-2.amazonaws.com/
$bTls = 1;
$port = 443;
$bAutoReconnect = 1;

#  -------------------------------------------------------------------------------------------
#  Note: The source of the lambda function (hosted on AWS) is shown at the bottom of this page.
#  --------------------------------------------------------------------------------------------

#  If your lambda function URL is: https://itwxyj3vd6gjtaerbfqnfccs2e0fplzh.lambda-url.us-west-2.on.aws/
#  then use just the domain part here:
$success = $rest->Connect("itwxyj3vd6gjtaerbfqnfccs2e0fplzh.lambda-url.us-west-2.on.aws",$port,$bTls,$bAutoReconnect);

#  Provide AWS credentials for the REST call.
$authAws = chilkat::CkAuthAws->new();
$authAws->put_AccessKey("AWS_ACCESS_KEY");
$authAws->put_SecretKey("AWS_SECRET_KEY");
#  the region should match our domain above..
$authAws->put_Region("us-west-2");
$authAws->put_ServiceName("lambda");

$rest->SetAuthAws($authAws);

$json = chilkat::CkJsonObject->new();
$json->UpdateString("name","Benny");

$rest->AddHeader("Content-Type","application/json");

$sbRequestBody = chilkat::CkStringBuilder->new();
$json->EmitSb($sbRequestBody);

$sbResponseBody = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestSb("POST","/",$sbRequestBody,$sbResponseBody);
if ($success == 0) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$statusCode = $rest->get_ResponseStatusCode();
if ($statusCode >= 400) {
    print "Response Status Code: " . $statusCode . "\r\n";
    print "Response Body: " . $sbResponseBody->getAsString() . "\r\n";
    print "Failed." . "\r\n";
    exit;
}

print "Response Body:" . "\r\n";
print $sbResponseBody->getAsString() . "\r\n";

JavaScript

export const handler = async (event) => {

    let body = "Hello World";

    if (event.body) {
        const input = JSON.parse(event.body);
        if (input.name) {
            body = "Hello " + input.name;
        }
    }

    return {
        statusCode: 200,
        headers: {
            "Content-Type": "application/json"
        },
        body: JSON.stringify({
            message: body
        })
    };
};