Dataloader.js

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var process = require("process");
var e=require("process");function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var r,n=function(){function e(r,n){if(t(this,e),"function"!=typeof r)throw new TypeError("DataLoader must be constructed with a function which accepts Array<key> and returns Promise<Array<value>>, but got: "+r+".");this._batchLoadFn=r,this._options=n,this._promiseCache=s(n),this._queue=[]}return e.prototype.load=function(e){var t=this;if(null==e)throw new TypeError("The loader.load() function must be called with a value,but got: "+String(e)+".");var r=this._options,n=!r||!1!==r.batch,a=!r||!1!==r.cache,c=r&&r.cacheKeyFn,s=c?c(e):e;if(a){var u=this._promiseCache.get(s);if(u)return u}var h=new Promise(function(r,a){t._queue.push({key:e,resolve:r,reject:a}),1===t._queue.length&&(n?o(function(){return i(t)}):i(t))});return a&&this._promiseCache.set(s,h),h},e.prototype.loadMany=function(e){var t=this;if(!Array.isArray(e))throw new TypeError("The loader.loadMany() function must be called with Array<key> but got: "+e+".");return Promise.all(e.map(function(e){return t.load(e)}))},e.prototype.clear=function(e){var t=this._options&&this._options.cacheKeyFn,r=t?t(e):e;return this._promiseCache.delete(r),this},e.prototype.clearAll=function(){return this._promiseCache.clear(),this},e.prototype.prime=function(e,t){var r=this._options&&this._options.cacheKeyFn,n=r?r(e):e;if(void 0===this._promiseCache.get(n)){var o=t instanceof Error?Promise.reject(t):Promise.resolve(t);this._promiseCache.set(n,o)}return this},e}(),o="object"==typeof e&&"function"==typeof e.nextTick?function(t){r||(r=Promise.resolve()),r.then(function(){return e.nextTick(t)})}:setImmediate||setTimeout;function i(e){var t=e._queue;e._queue=[];var r=e._options&&e._options.maxBatchSize;if(r&&r>0&&r<t.length)for(var n=0;n<t.length/r;n++)a(e,t.slice(n*r,(n+1)*r));else a(e,t)}function a(e,t){var r=t.map(function(e){return e.key}),n=(0,e._batchLoadFn)(r);if(!n||"function"!=typeof n.then)return c(e,t,new TypeError("DataLoader must be constructed with a function which accepts Array<key> and returns Promise<Array<value>>, but the function did not return a Promise: "+String(n)+"."));n.then(function(e){if(!Array.isArray(e))throw new TypeError("DataLoader must be constructed with a function which accepts Array<key> and returns Promise<Array<value>>, but the function did not return a Promise of an Array: "+String(e)+".");if(e.length!==r.length)throw new TypeError("DataLoader must be constructed with a function which accepts Array<key> and returns Promise<Array<value>>, but the function did not return a Promise of an Array of the same length as the Array of keys.\n\nKeys:\n"+String(r)+"\n\nValues:\n"+String(e));t.forEach(function(t,r){var n=t.resolve,o=t.reject,i=e[r];i instanceof Error?o(i):n(i)})}).catch(function(r){return c(e,t,r)})}function c(e,t,r){t.forEach(function(t){var n=t.key,o=t.reject;e.clear(n),o(r)})}function s(e){var t=e&&e.cacheMap;if(!t)return new Map;var r=["get","set","delete","clear"].filter(function(e){return t&&"function"!=typeof t[e]});if(0!==r.length)throw new TypeError("Custom cacheMap missing methods: "+r.join(", "));return t}module.exports=n;
},{"process":5}],1:[function(require,module,exports) {
var a=require("dataloader");window.Dataloader=a;
},{"dataloader":3}]},{},[1], null)
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