ng-jhipster/src/interceptor/http.interceptor.js

A Jhipster util library for Angular 2

var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
import { Injectable } from '@angular/core';
import { Http, ConnectionBackend, RequestOptions, Headers } from '@angular/http';
export var HttpInterceptor = (function (_super) {
    __extends(HttpInterceptor, _super);
    function HttpInterceptor(backend, defaultOptions, interceptors) {
        _super.call(this, backend, defaultOptions);
        /**
         * building a responsibility chain of http interceptables, so when processXXXInterception is called on first interceptor,
         * all http interceptables are called in a row
         * Note: the array of interceptors are wired in customHttpProvider of the generated Jhipster app in file `http.provider.ts`
         *
        */
        if (interceptors.length > 0) {
            interceptors.reduce(function (chain, current) {
                chain.successor = current;
                return current;
            });
            this.firstInterceptor = interceptors[0];
        }
    }
    HttpInterceptor.prototype.request = function (url, options) {
        return this.intercept(_super.prototype.request.call(this, url, this.getRequestOptionArgs(options)));
    };
    HttpInterceptor.prototype.get = function (url, options) {
        return _super.prototype.get.call(this, url, this.getRequestOptionArgs(options));
    };
    HttpInterceptor.prototype.post = function (url, body, options) {
        return _super.prototype.post.call(this, url, body, this.getRequestOptionArgs(options));
    };
    HttpInterceptor.prototype.put = function (url, body, options) {
        return _super.prototype.put.call(this, url, body, this.getRequestOptionArgs(options));
    };
    HttpInterceptor.prototype.delete = function (url, options) {
        return _super.prototype.delete.call(this, url, this.getRequestOptionArgs(options));
    };
    HttpInterceptor.prototype.getRequestOptionArgs = function (options) {
        if (options == null) {
            options = new RequestOptions();
        }
        if (options.headers == null) {
            options.headers = new Headers();
        }
        return !this.firstInterceptor ? options : this.firstInterceptor.processRequestInterception(options);
    };
    HttpInterceptor.prototype.intercept = function (observable) {
        return !this.firstInterceptor ? observable : this.firstInterceptor.processResponseInterception(observable);
    };
    HttpInterceptor.decorators = [
        { type: Injectable },
    ];
    /** @nocollapse */
    HttpInterceptor.ctorParameters = function () { return [
        { type: ConnectionBackend, },
        { type: RequestOptions, },
        { type: Array, },
    ]; };
    return HttpInterceptor;
}(Http));