koaMiddleware.js

app.use(function* (next) {
	this.accountService = {};
	for (const method in accountServiceClient) {
		this.accountService[method] = function* () {
			try {
				return yield accountServiceClient[method].apply(null, arguments);
			}
			catch (e) {
				requestLogger.error(e);
				throw e;
			}
		};
	}
	this.legacyApi = {};
	for (const method in apiLegacyClient) {
		this.legacyApi[method] = function* () {
			try {
				return yield apiLegacyClient[method].apply(null, arguments);
			}
			catch (e) {
				requestLogger.error(e);
				throw e;
			}
		};
	}
	yield next;
});