modified code

index.html

@@ -22,12 +22,8 @@
 			} )
 		}
 
-		async function wait_data(){
-			return await this.fetch_data()
-		}
-
 		riot.compile().then(() => {
-			riot.mount('onzer', {items: wait_data()});
+			riot.mount('onzer', {items: fetch_data()});
 		})
 	</script>
 

onzer.riot

@@ -29,14 +29,15 @@
 
     <script>
         export default {
-            onBeforeMount(props){
-                console.log(props.items.value);
+            async onBeforeMount(props){
                 this.state = {
                     placeholder: "Rechercher dans les albums",
-                    items: props.value.items.results,
+                    items: await props.value.items,
                     search: "albums"
                 };
                 this.paintButton();
+                console.log(props);
+                console.log(this.state.items);
                 this.album_style = "isActivate";
             },
             onMounted(){