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Example code of xp-forge/lambda-ws

Informations about the package lambda-ws

AWS Lambda Webservices for the XP Framework

Build status on GitHub XP Framework Module BSD Licence Requires PHP 7.0+ Supports PHP 8.0+ Latest Stable Version

Run XP web applications on AWS lambda using API Gateway or Lambda Function URLs. Unlike other implementations, this library does not spawn PHP-FPM but runs requests directly, resulting in an overhead of less than 1ms.

Example

Put this code in a file called Greet.class.php:

The request context is passed into a request value named request and contains a RequestContext instance. The lambda context is passed in context.

To run existing web applications, return an instance of your web.Application subclass from the routes() method.

Development & testing

To run the HTTP APIs locally, this library integrates with xp-forge/web via a wrapper:

By adding -m develop, these can be run in the development webserver.

Setup and deployment

Follow the steps shown on the xp-forge/lambda README to create the runtime layer, the service role and the lambda function itself. Next, create the function URL as follows:

The URL will be returned by this command.

Invocation

You can either open the HTTP endpoint in your browser or by using curl:

Deploying changes

After having initially created your lambda, you can update its code as follows:

Streaming

This library implements HTTP response streaming as announced by AWS in April 2023, improving TTFB and memory consumption of web applications. Response streaming is available for lambda function URLs which have their invoke mode set to RESPONSE_STREAM.

Inherit from the HttpStreaming base class instead of HttpApi:

Next, deploy the change, then update the function configuration:

Request context

The request context passed via the request value is defined as follows:

See also

All versions of lambda-ws with dependencies

PHP Build Version
Package Version
Requires xp-framework/core Version ^12.0 | ^11.0 | ^10.0
xp-forge/lambda Version ^5.0
xp-forge/web Version ^4.0 | ^3.0
php Version >=7.0.0
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