diff --git a/lib/api/source/init.php b/lib/api/source/init.php
index ff01337..b3b6e35 100755
--- a/lib/api/source/init.php
+++ b/lib/api/source/init.php
@@ -15,7 +15,7 @@
 		}
 
 		// remove unwanted spaces or linebreaks
-		$url = preg_replace('/\s/', '', $url).'/init';
+		$url = preg_replace('/\s/', '', $url).'/init/';
 
 
 		/* (2) Fetch machine id */
@@ -26,6 +26,7 @@
 			return 127;
 		}
 
+		$id_machine = (int) preg_replace('/\s/', '', $id_machine);
 
 
 		/* (3) Fetch cyclic hash */
@@ -120,9 +121,26 @@
 			return 127;
 		}
 
+		
+		/* [6] Response management
+		=========================================================*/
+		/* (1) Try to json_decode response */
+		$response_arr = json_decode($response, true);
+
+		// if cannot, abort
+		if( is_null($response_arr) )
+			return 127;
+
+		/* (2) Check response error */
+		if( !isset($response_arr['error']) || $response_arr['error'] != 0 )
+			return 127;
 
 
-		/* [6] Decrement cyclic-hash so request has ran successfully
+		/* (3) Writes request to temporary pipe */
+		file_put_contents(TMP_DIR.'/api.response', $response);
+
+
+		/* [7] Decrement cyclic-hash so request has ran successfully
 		=========================================================*/
 		/* (1) Decrement the hash */
 		$decr = syscall(SOURCE_DIR.'/lib/cyclic-hash/decr');
@@ -132,21 +150,21 @@
 			return 127;
 		}
 
-		
-		/* [6] Response management
-		=========================================================*/
-		/* (1) Writes request to temporary pipe */
-		file_put_contents(TMP_DIR.'/api.response', $response);
+		return 0;
 
-		/* (2) Manage response deployement */
+
+		/* [8] Deploy received data
+		=========================================================*/
+		/* (1) Manage response deployement */
 		$deploy = syscall(SOURCE_DIR.'/lib/api/deploy init');
 		
-		/* (3) Return state */
+		/* (2) Return state */
 		return ($deploy === true) ? 0 : 127;
+
 	
 	}
 
-	echo api_init();
+	die(api_init());
 	
 	
 
diff --git a/lib/api/source/sync.php b/lib/api/source/sync.php
index c0768a4..70b5ac3 100755
--- a/lib/api/source/sync.php
+++ b/lib/api/source/sync.php
@@ -15,7 +15,7 @@
 		}
 
 		// remove unwanted spaces or linebreaks
-		$url = preg_replace('/\s/', '', $url).'/sync';
+		$url = preg_replace('/\s/', '', $url).'/sync/';
 
 
 		/* (2) Fetch cyclic hash */
@@ -108,19 +108,6 @@
 			return 127;
 		}
 
-
-
-		/* [6] Decrement cyclic-hash so request has ran successfully
-		=========================================================*/
-		/* (1) Decrement the hash */
-		$decr = syscall(SOURCE_DIR.'/lib/cyclic-hash/decr');
-
-		if( $decr === false ){
-			slog("cyclic-hash:decr returned $decr EXIT_STATUS", 'api:sync','update');
-			return 127;
-		}
-
-		
 		/* [6] Response management
 		=========================================================*/
 		/* (1) Try to json_decode response */
@@ -137,15 +124,31 @@
 		/* (3) Writes request to temporary pipe */
 		file_put_contents(TMP_DIR.'/api.response', $response);
 
-		/* (4) Manage response deployement */
+
+		/* [7] Decrement cyclic-hash so request has ran successfully
+		=========================================================*/
+		/* (1) Decrement the hash */
+		$decr = syscall(SOURCE_DIR.'/lib/cyclic-hash/decr');
+
+		if( $decr === false ){
+			slog("cyclic-hash:decr returned $decr EXIT_STATUS", 'api:init','update');
+			return 127;
+		}
+
+		return 0;
+
+		/* [8] Deploy received data
+		=========================================================*/
+		/* (1) Manage response deployement */
 		$deploy = syscall(SOURCE_DIR.'/lib/api/deploy sync');
 		
-		/* (5) Return state */
+		/* (2) Return state */
 		return ($deploy === true) ? 0 : 127;
+
 	
 	}
 
-	echo api_request();
+	die(api_request());