# PSR-7 implementation
[](https://github.com/Nyholm/psr7/releases)
[](https://packagist.org/packages/nyholm/psr7)
[](https://packagist.org/packages/nyholm/psr7)
[](LICENSE)
[](https://github.com/Nyholm/psr7/actions/workflows/static.yml?query=branch%3Amaster)
[](https://github.com/Nyholm/psr7/actions/workflows/tests.yml?query=branch%3Amaster)
A super lightweight PSR-7 implementation. Very strict and very fast.
| Description | Guzzle | Laminas | Slim | Nyholm |
| ---- | ------ | ---- | ---- | ------ |
| Lines of code | 3.300 | 3.100 | 1.900 | 1.000 |
| PSR-7* | 66% | 100% | 75% | 100% |
| PSR-17 | No | Yes | Yes | Yes |
| HTTPlug | No | No | No | Yes |
| Performance (runs per second)** | 14.553 | 14.703 | 13.416 | 17.734 |
\* Percent of completed tests in https://github.com/php-http/psr7-integration-tests
\** Benchmark with 50.000 runs. See https://github.com/devanych/psr-http-benchmark (higher is better)
## Installation
```bash
composer require nyholm/psr7
```
If you are using Symfony Flex then you get all message factories registered as services.
## Usage
The PSR-7 objects do not contain any other public methods than those defined in
the [PSR-7 specification](https://www.php-fig.org/psr/psr-7/).
### Create objects
Use the PSR-17 factory to create requests, streams, URIs etc.
```php
$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$request = $psr17Factory->createRequest('GET', 'http://tnyholm.se');
$stream = $psr17Factory->createStream('foobar');
```
### Sending a request
With [HTTPlug](http://httplug.io/) or any other PSR-18 (HTTP client) you may send
requests like:
```bash
composer require kriswallsmith/buzz
```
```php
$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$psr18Client = new \Buzz\Client\Curl($psr17Factory);
$request = $psr17Factory->createRequest('GET', 'http://tnyholm.se');
$response = $psr18Client->sendRequest($request);
```
### Create server requests
The [`nyholm/psr7-server`](https://github.com/Nyholm/psr7-server) package can be used
to create server requests from PHP superglobals.
```bash
composer require nyholm/psr7-server
```
```php
$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$creator = new \Nyholm\Psr7Server\ServerRequestCreator(
$psr17Factory, // ServerRequestFactory
$psr17Factory, // UriFactory
$psr17Factory, // UploadedFileFactory
$psr17Factory // StreamFactory
);
$serverRequest = $creator->fromGlobals();
```
### Emitting a response
```bash
composer require laminas/laminas-httphandlerrunner
```
```php
$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$responseBody = $psr17Factory->createStream('Hello world');
$response = $psr17Factory->createResponse(200)->withBody($responseBody);
(new \Laminas\HttpHandlerRunner\Emitter\SapiEmitter())->emit($response);
```
## Our goal
This package is currently maintained by [Tobias Nyholm](http://nyholm.se) and
[Martijn van der Ven](https://vanderven.se/martijn/). They have decided that the
goal of this library should be to provide a super strict implementation of
[PSR-7](https://www.php-fig.org/psr/psr-7/) that is blazing fast.
The package will never include any extra features nor helper methods. All our classes
and functions exist because they are required to fulfill the PSR-7 specification.
Initiates a new payment transaction.
create-order
| Parameter | Type | Details |
|---|---|---|
| amount | decimal | Your Amount , Must be rounded at 2 precision. |
| currency | string | Currency Code, Must be in Upper Case (Alpha-3 code) |
| success_url | string | Enter your return or success URL |
| cancel_url | string (optional) | Enter your cancel or failed URL |
Request Example (guzzle)
<?php
require_once('vendor/autoload.php');
$client = new \GuzzleHttp\Client();
$response = $client->request('POST', $base_url.'create-order', [
'headers' => [
'Authorization' => 'Bearer '. $authorizationToken,
'accept' => 'application/json',
'content-type' => 'application/json',
],
'form_params' => [
'amount' => '$amount',
'currency' => 'currency',
'success_url' => 'success_url',
'cancel_url' => 'cancel_url',
],
]);
echo $response->getBody();
**Response: SUCCESS (200 OK)**
{
"message": {
"success": [
"Order created successfully."
]
},
"data": {
"redirect_url":"https://example.com/login/OISADFDFSDFSF",
"order_details":{
"amount" : "10",
"fixed_charge" : 2,
"percent_charge" : 1,
"total_charge" : 3,
"total_payable" : 13,
"currency" : "USD",
"expiry_time": "2024-04-25T06:48:35.984285Z",
"success_url": "http://127.0.0.1/nfcpay/user/transaction/success",
"cancel_url": "http://127.0.0.1/nfcpay/user/transaction/cancel"
}
},
"type": "success"
}
**Response: ERROR (400 FAILED)**
{
"message": {
"error": [
"Invalid token."
]
},
"data": null,
"type": "error"
}