trc-client-core/src/utils/Request.js

The core of the TRC Client

import TrcAPI from 'trc-api-js';
import PromiseErrorHandler from 'trc-client-core/src/utils/PromiseErrorHandler';
import PromiseSuccessHandler from 'trc-client-core/src/utils/PromiseSuccessHandler';

var api = TrcAPI();

// wrapper for reducing objects.
function reduceObject(obj, reducer) {
    return Object.keys(obj).reduce(reducer, {});
}

//
// Append each method on the trc-api-js with the global promise handlers
// Only handles two levels deep. This might be naive.
// 

// Reduce the top level
module.exports = reduceObject(api, (reduction, key) => {
    // reduce second level
    reduction[key] = reduceObject(api[key], (subReduction, subKey) => {
        // proxy each sub method
        subReduction[subKey] = function PromiseProxyApi() {
            // Apply the given arguments and attach the global `then()` 
            return api[key][subKey].apply(null, arguments)
                .then(PromiseSuccessHandler, PromiseErrorHandler);
        }
        return subReduction;
    });
    return reduction;
});