@arcgis/core
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ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API
6 lines (5 loc) • 764 B
JavaScript
/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.33/esri/copyright.txt for details.
*/
import{fetchArcGISServiceJSON as t}from"../../support/requestPresets.js";class e{constructor(){this._serviceMetadatas=new Map,this._itemDatas=new Map}async fetchServiceMetadata(e,a){const s=this._serviceMetadatas.get(e);if(s)return s;const r=await t(e,a);return this._serviceMetadatas.set(e,r),r}async fetchItemData(t){const{id:e}=t;if(!e)return null;const{_itemDatas:a}=this;if(a.has(e))return a.get(e);const s=await t.fetchData();return a.set(e,s),s}async fetchCustomParameters(t,e){const a=await this.fetchItemData(t);return a&&"object"==typeof a&&(e?e(a):a.customParameters)||null}}export{e as LayerLoadContext};