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Title
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How-To: Create a REST API
Category
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How-tos
Yii version
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Tags
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REST, API, Tutorial, Backbone
Content
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This article will explain how to create a REST API with the Yii framework.
## Information about REST
A good introduction about implementing REST service with PHP can be found on [http://www.gen-x-design.com](
https://web.archive.org/web/20130910164802/http://www.gen-x-design.com/archives/create-a-rest-api-with-php/).
## Usefull Tools[...]
'Error: Mode <b>list</b> is not implemented for model <b>%s</b>',
$_GET['model']) );
exitYii::app()->end();
}
// Did we get some results?
if(
is_nullempty($models)) {
// No
$this->_sendResponse(200,[...]
'Mode <b>view</b> is not implemented for model <b>%s</b>',
$_GET['model']) );
exitYii::app()->end();
}
// Did we find the requested model? If not, raise an error[...]
$this->_sendResponse(404, 'No Item found with id '.$_GET['id']);
else
$this->_sendResponse(200, CJSON::encode($_GET['model
']));
}
```[...]
sprintf('Mode <b>create</b> is not implemented for model <b>%s</b>',
$_GET['model']) );
exitYii::app()->end();
}
// Try to assign POST values to attributes[...]
// Try to save the model
if($model->save())
$this->_sendResponse(200,
$this->_getObjectECJSON::encode
d($
_GET['model'], $model->attributes) model));
else {
// Errors occurred[...]
public function actionUpdate()
{
// Parse the PUT parameters
. This didn't work: parse_str(file_get_contents('php://input'), $put_vars);
$json = file_get_contents('php://input'); //$GLOBALS['HTTP_RAW_POST_DATA'] is not preferred: http://www.php.net/manual/en/ini.core.php#ini.always-populate-raw-post-data
$put_vars = CJSON::decode($json,true); //true means use associative array
switch($_GET['model'])[...]
sprintf( 'Error: Mode <b>update</b> is not implemented for model <b>%s</b>',
$_GET['model']) );
exitYii::app()->end();
}
// Did we find the requested model? If not, raise an error
if(
is_null($model)$model === null)
$this->_sendResponse(400,
sprintf("Error: Didn't find any model <b>%s</b> with ID <b>%s</b>.",[...]
// Try to save the model
if($model->save())
$this->_sendResponse(200,
sprintf('The model <b>%s</b> with id <b>%s</b> has been updated.',
$_GET['model'], $_GET['id']) CJSON::encode($model));
else
// prepare the error $msg[...]
sprintf('Error: Mode <b>delete</b> is not implemented for model <b>%s</b>',
$_GET['model']) );
exitYii::app()->end();
}
// Was a model found? If not, raise an error
if(
is_null($model)$model === null)
$this->_sendResponse(400,
sprintf("Error: Didn't find any model <b>%s</b> with ID <b>%s</b>.",[...]
$num = $model->delete();
if($num>0)
$this->_sendResponse(200,
sprintf("Model <b>%s</b> with ID <b>%s</b> has been deleted.",
$_GET['model'], $_GET['id']) );$num); //this is the only way to work with backbone
else
$this->_sendResponse(500,[...]
How are the API responses actually sent? Right, we need to implement the _sendResponse method.
This code is borrowed from [http://www.gen-x-design.com/archives/create-a-rest-api-with-php](https://web.archive.org/web/20130910164802/http://www.gen-x-design.com/archives/create-a-rest-api-with-php
/).[...]
// send the body
echo $body;
exit;
}
// we need to create the body if none is passed
else[...]
echo $body;
}
exit;
}Yii::app()->end();
}
```
### Getting the Status Codes[...]