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Package comet
Short Description Modern PHP framework for building blazing fast REST APIs and microservices
License MIT
Homepage https://github.com/gotzmann/comet
Informations about the package comet
Comet
Comet is a modern PHP framework for building blazing fast REST APIs, CRUDs, admin panels and microservices.
What's new in Comet v2
- Performance improvments - up to 20-30% faster than first version!
- Embedded secure web-server to serve static content like images, CSS styles and JS scripts
- Extended session support for complex authentication and authorizathion services
- Hassle-free out-of-the-box integration with full-featured Auth library
Superpowers at your disposal
- Blazing fast with 100K HTTP requests per second and ~0.1 ms latency on commodity cloud hardware
- Really cross-platform, works like a charm on Linux, MacOS and Windows 7/10
- Embedded web-server to serve static content like CSS/JS and images
- Integration with full-featured auth library Comet\Auth for users management
- Embedded validation and testing features you could use with easy to create robust software
- Based on bullet-proof components from Guzzle, SlimPHP and Workerman
- Extendable with Composer: use ORM and templating engine of your choice (Eloquent and Twig are recommended)
- PSR compliant with native implementations of all PSR-7 interfaces and PHP sessions abstraction
- Has its own efficient HTTP client with simple programming interface
Standing on the shoulders of giants
Comet combines all superpowers of Slim PHP, Guzzle and Workerman and mix its own magic to achieve 10x speed up.
Slim is a micro-framework that helps write web applications and APIs based on modern PSR standards.
Guzzle is a set of PHP components to work with HTTP/1.1 and HTTP/2 services.
Workerman is an asynchronous event-driven framework to build fast and scalable network applications.
Comet allows you natively use all the classes and methods of Slim framework: http://www.slimframework.com/docs/v4/
Performance
PHP is often criticized for its low throughput and high latency. But that is not necessarily true for modern frameworks. Let's see how Comet outperforms others.
Benchmarking stripped versions of frameworks with no ORM under 1,000 concurrent connections
As you can see, the right architecture provides it with tenfold advantage over Symfony and other popular frameworks.
Latency
How long it takes to get response from API often is even more important than overall service throughput. And that is where Comet really shines!
Response latency of minimal versions of popular PHP frameworks under series of serial web requests
Comet provides sub-millisecond latency for typical scenarios. Even under hard pressure of thousand concurrent connections it can compete with frameworks of compiled platforms like Go and Java.
Too good to be true?
You may run all benchmarks on your own to be sure charts are not scam: https://github.com/gotzmann/benchmarks
Basics
Installation
It is recommended that you use Composer to install Comet.
This will install framework itself and all required dependencies. Comet requires PHP 7.2 or newer.
Hello Comet
Create single app.php file at project root folder with content:
Start it from command line:
Then open browser and type in default address http://localhost - you'll see hello from Comet!
Simple JSON Response
Let's start Comet server listening on custom host:port and returning JSON payload.
Start browser or Postman and see the JSON resonse from GET http://127.0.0.1:8080
Authorization, authentication, ACL and users management
There special full featured Comet/Auth library which allows you to create secure and sofisticated scenarios for user registration, email checking, password management, role-based access and so on.
Please refer for the corresponging documentation on how to use Comet\Auth in your own projects.
Validation
Comet validation engine is based on clean yet powerful Rakit Validation library.
To start using Comet Validation in your own project, specify use statement:
You can use different predefined and user-defined rules, custom error messages and controller logic to deal with errors. Look at this example:
Please refer to the docs about Rakit Validation for more information on available rules and possibilities.
Advanced Topics
PSR-4 and Autoloading
Before you proceed with complex examples, be sure that your composer.json contains "autoload" section like this:
If not, you should add the section mentioned above and update all vendor packages and autoload logic by command:
Controllers
Create src/Controllers/SimpleController.php:
Then create Comet server app.php at project root folder:
Now you are ready to get counter value with API GET endpoint. And pay attention to '/api/v1' prefix of URL:
GET http://localhost:8080/api/v1/counter
You can change counter sending JSON request for POST method:
POST http://localhost:8080/api/v1/counter with body { "counter": 100 } and 'application/json' header.
Any call with malformed body will be replied with HTTP 500 code, as defined in controller.
Deployment
Debugging and Logging
Comet allows you to debug application showing errors and warnings on the screen console. When you move service to the production it better to use file logs instead. Code snippet below shows you how to enable on-the-screen debug and logging with popular Monolog library:
Docker
Please see Dockerfile at this repo as starting point for creating your own app images and containers.
Nginx
If you would like to use Nginx as reverse proxy or load balancer for your Comet app, insert into nginx.conf these lines:
FAQ
Got error stream_socket_server(): unable to connect to tcp://0.0.0.0:80 (Permission denied)
trying to start Comet under my Ubuntu?
Comet needs to be run as root in order to bind to port 80 or any other port lower than 1000. So either start with sudo or just use port like 8080.
All versions of comet with dependencies
workerman/workerman Version ^4.1
slim/slim Version ^4.10
rakit/validation Version ^1.4