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Posted on / by Vivan Web Solution / in Symfony Development / 7 comments

How To Create Api in Symfony 4 using JSON data ?

Here, I will show you how to create Api in symfony for beginners.

Step 1:

Navigate to project directory & run below command for create fresh project.

composer create-project symfony/skeleton [project-name]

Step 2:

Now Navigate to project path & Create controller via below command.

php bin/console make:controller

Step 3:

Open that controller, now we need to create three methods for api, first of all we look into listing method which make the list of given JSON array [ index() ]

/**
* @Route("/api/user", name="api_user")
*/
public function index(Request $request)
{
//initilize array
$data = array();
$userArr = array();

// make api request
$request_user_url = '../users.json';
$request_user_result = file_get_contents( $request_user_url );
$user_details = json_decode( $request_user_result, true );

foreach ($user_details as $user)
{
$userArr['id'] = $user['id'];
$userArr['name'] = $user['name'];
$userArr['date'] = $user['date'];
$userArr['address'] = $user['address'];
$userArr['last_modified'] = $user['last_modified'];

array_push($data, $userArr);
}

return new JsonResponse(array('data' => $data, 'count' => count($data)));
}

Step 4:

Second method for update the JSON data [ update() ]

/** * @Route("/api/user-update/{id}/{name}/{date}/{address}", name="api_user_update") */ 
public function update( Request $request, $name = null, $date = null, $address = null ) { 
$status = 'error'; 
$message = 'User not found!'; 
$id = $request->get('id'); 
$name = $request->get('name'); 
$date = $request->get('date'); 
$address = $request->get('address'); 
// make api request 
$request_user_url = '../users.json'; 
$request_user_result = file_get_contents( $request_user_url ); 
$user_details = json_decode( $request_user_result, true ); 
foreach ( $user_details as $key => $value ) { 
if( $value['id'] == $id ) { 
if( $name != null ) { 
$user_details[$key]['name'] = $name; 
} 
if( $date != null) { 
$user_details[$key]['date'] = $date; 
} 
if( $address != null ) { 
$user_details[$key]['address'] = $address; 
} 
$user_details[$key]['last_modified'] = date('Y-m-d H:i:s'); 
// updates the specific user.. 
$status = 'success'; 
$message = 'User details update successfully!'; 
}
} 

// encode array to json and save to file 

file_put_contents($request_user_url, json_encode($user_details)); 
return new JsonResponse(array('status' => $status, 'message' => $message)); 
}
Step 5:

Third method for delete the JSON data [ delete() ]

/** * @Route("/api/user-delete/{id}", name="api_user_delete") */ 
public function delete(Request $request) { 
$status = 'error'; 
$message = 'User not found!'; 
$userId = $request->get('id'); 

// make api request 

$request_user_url = '../users.json'; 
$request_user_result = file_get_contents( $request_user_url ); 
$user_details = json_decode( $request_user_result, true ); 
foreach ( $user_details as $key => $value ) 
{ 
 if( $value['id'] == $userId ) { 
// delete specific user.. 
  unset($user_details[$key]); $status = 'success'; $message = 'User deleted successfully!'; 
  } 
} 

// encode array to json and save to file 

file_put_contents($request_user_url, json_encode($user_details)); 
return new JsonResponse(array('status' => $status, 'message' => $message)); 
}
That's all, thanks for reading our blog, hope this will help a lot to you.

	


	




			
			
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