uspto-patents-view-api
Version:
An api wrapper for the patent view api run by the uspto
75 lines • 9.5 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Range = void 0;
const path_1 = __importDefault(require("path"));
const rxjs_1 = require("rxjs");
const operators_1 = require("rxjs/operators");
const query_system_1 = require("../../../query-system");
const base_1 = require("../../base");
const config_1 = __importDefault(require("../config"));
function buildRangeQueryStringObject(args) {
return [
{
_eq: {
patent_type: 'design'
}
},
{
_gte: {
patent_date: args.startDate
}
},
{
_lte: {
patent_date: args.endDate
}
}
];
}
class Range extends base_1.BaseEndpoint {
constructor() {
super();
this.endNotifier = new rxjs_1.Subject();
this.apiEndpointUrl = path_1.default.join(config_1.default.subsdirectory, config_1.default.endpoint);
}
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
between({ args, dataPoints = [], sortBy }) {
const { pageSize, ...rangeArgs } = args;
this.pageSize = pageSize || base_1.PAGE_SIZE;
this.pages = args.pages || 10;
const queryObject = query_system_1.QueryBuilder.build({
and: buildRangeQueryStringObject(args)
});
const requestArgs = {
args: rangeArgs,
dataPoints,
queryParamObject: queryObject,
sortingOptions: sortBy
};
return this.request(requestArgs, 1).pipe((0, operators_1.expand)((data, index) => {
const { count, total_patent_count } = data;
const hasHitMaxUserReqPageCount = this.pageSize * this.pages <= count;
const hasHitMaxServerPageCount = count >= total_patent_count;
if (hasHitMaxServerPageCount || hasHitMaxUserReqPageCount) {
this.completeRequestSequence();
return rxjs_1.EMPTY;
}
const nextPage = index + 1;
return this.request(requestArgs, nextPage);
}), (0, operators_1.takeUntil)(this.endNotifier), (0, operators_1.map)((data) => [...data.patents]), (0, operators_1.reduce)((acc, data) => {
return acc.concat(...data);
}));
}
mapper(data) {
return JSON.parse(data);
}
completeRequestSequence() {
this.endNotifier.next(true);
this.endNotifier.complete();
}
}
exports.Range = Range;
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