JSend

A simple PHP implementation of the JSend specification.

Usage

use JSend\JSendResponse;

New response

$success = new JSendResponse('success', $data);
$fail = new JSendResponse('fail', $data);
$error = new JSendResponse('error', $data, 'Not cool.', 9001);

$success = JSendResponse::success($data);
$fail = JSendResponse::fail($data);
$error = JSendResponse::error('Not cool.', 9001, $data);

Note: an InvalidJSendException is thrown if the status is invalid or if you're creating an error without a message.

Convert JSendResponse to JSON

__toString() is overridden to encode JSON automatically.

$json = $success->encode();
$json = (string) $success;

As JSendResponse is JsonSerializable, you can use the object directly in json_encode

json_encode($success);

Setting flags

You can set flags if needed:

$success->setEncodingOptions(\JSON_PRETTY_PRINT | \JSON_BIGINT_AS_STRING);
$json = $success->encode();

Convert JSON to JSendResponse

try {
    $response = JSendResponse::decode($json);
} catch (InvalidJSendException $e) {
    echo "You done gone passed me invalid JSend.";
}

Send JSON as HTTP Response

This sets the Content-Type header to application/json and spits out the JSON.

$jsend = new JSendResponse('success', $data);
$jsend->respond();

Get info

$isSuccess = $response->isSuccess();
$isError = $response->isError();
$isFail = $response->isFail();
$status = $response->getStatus();
$data = $response->getData();
$array = $response->asArray();

Additionally, you can call the following methods on an error. A BadMethodCallException is thrown if the status is not error, so check first.

if ($response->isError()) {
    $code = $response->getErrorCode;
    $message = $response->getErrorMessage;
}

Development

For your convenience, there is a dockerfile with the right dependencies (php, composer) available. Please use those to run various things (composer, phpunit, etc). You will need docker installed, but you don't need PHP or composer or any of the other dependencies.

Setting up and using a local environment

To start using the local environment for testing and debugging all you have to is open a shell in the root folder of where this project is checked out. Then run the following command.

make build install

This command should be run occasionally to keep the local environment up to date. For instance when the composer dependencies are changed.

Using the shell

To open a shell in the docker container run the following command.

make shell

Available commands are in /bin

Running the code quality tools locally

We use a variety of tools to keep the code quality of the library high. To run one the tools you only need to run

make <tool_name>

Available tools:

• phpstan PHPStan is static analyser tool that can detect various code issues.
• phpunit PHPUnit is the unit testing framework we use for this library.
• codeclimate CodeClimate

Notes

• Note that the composer.lock file is ignored.

Credits

The library was written by Jamie Schembri. It has been transfered to the current account Nanne Huiges in december 2015.