/**
 * 3D Foundation Project
 * Copyright 2019 Smithsonian Institution
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ import { LoadingManager } from "three" ; export default class JSONReader { private _loadingManager : LoadingManager ; constructor ( loadingManager ) { this . _loadingManager = loadingManager ; } async get ( url ) { this . _loadingManager . itemStart ( url ) ; return fetch ( url , { headers : { "Accept" : "application/json" } } ) . then ( result => { if ( ! result . ok ) { this . _loadingManager . itemError ( url ) ; this . _loadingManager . itemEnd ( url ) ; throw new Error ( `failed to fetch from '${ url }', status: ${ result . status } ${ result . statusText }` ) ; } this . _loadingManager . itemEnd ( url ) ; return result . json ( ) ; } ) ; } }