@takentrade/takentrade-libs
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TakeNTrade shared libraries
50 lines (49 loc) • 2.21 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.PaginationInterceptor = void 0;
const common_1 = require("@nestjs/common");
/**
* This is intended to intercept incoming requests for routes that intend to use pagination.
* It attaches a `Pagination` object named `pagination` to the request object.
*
* This new `pagination` property on the request body uses the `page` and `limit` properties on
* the request's query object if they exist. If no `page` or `limit` property is provided by
* the request client, this interceptor sets defaults.
*
* Defaults:
*
* `page` = 1 and;
*
* `limit` = 10
*/
let PaginationInterceptor = class PaginationInterceptor {
intercept(context, next) {
const request = context.switchToHttp().getRequest();
let page = Number.parseInt(request.query.page);
let limit = Number.parseInt(request.query.limit);
// check validity and set defaults where necessary
page = page.toString() === Number.NaN.toString() ? 1 : page;
limit = limit.toString() === Number.NaN.toString() ? 10 : limit;
// set boundaries
page = page <= 0 ? 1 : page;
limit = limit > 100 ? 100 : limit;
const pagination = {
offset: page * limit - limit,
skip: (page - 1) * limit,
limit,
page,
};
request.pagination = pagination;
return next.handle();
}
};
exports.PaginationInterceptor = PaginationInterceptor;
exports.PaginationInterceptor = PaginationInterceptor = __decorate([
(0, common_1.Injectable)()
], PaginationInterceptor);