source/http/HttpJsonResponse.js

import HttpResponse from "./HttpResponse";


/**
 * Extends HttpResponse with extra functionality for
 * working with JSON response data.
 *
 * The most important addition is the {@link HttpJsonResponse#bodydata}
 * property that you will want to use instead of
 * {@link HttpResponse#body}.
 */
export default class HttpJsonResponse extends HttpResponse {

    /**
     * Get the response body (the responseText attribute of the XMLHttpRequest)
     * decoded from JSON.
     */
    get bodydata() {
        if(this.isConnectionRefused()) {
            return null;
        } else {
            return this.__parseResponseTextAsJson();
        }
    }

    __parseResponseTextAsJson() {
        return JSON.parse(this.body);
    }

    /**
     * Overriden to make use of JSON.stringify to produce more
     * pretty output.
     */
    getPrettyfiedBody() {
        let prettyBody;
        try {
            prettyBody = JSON.stringify(this.bodydata, null, 2);
        } catch (SyntaxError) {
            prettyBody = this.body;
        }
        return prettyBody;
    }
}