mares-app-service/index.js

슬로그업 ddd 패턴의 application layer에서 사용되는 base class

/**
 * App Service Super Class
 */
class MaresAppService {

	/**
	 * @constructor
	 * @param {string} appKey - app key
	 */
	constructor(appKey) {
		this.appKey = appKey
	}

	/**
	 * send 204 response
	 * @returns {{status: number}}
	 */
	static sendNoContents() {
		return {
			status: 204
		}
	}

	/**
	 * normalize return value for object
	 * @param {number} status - status code
	 * @param {Object} [obj] - returning object
	 * @param {Object} [others = null] - other returning object
	 * @returns {Object}
	 */
	static sendObject(status, obj, others = null) {
		if (!obj) {
			return {
				status
			}
		}
		let body = Object.assign({
			row: obj
		}, others || {})
		return {
			status,
			body
		}
	}

	/**
	 * normalize return error for mares error
	 * @param {MaresError} e - Mares Error
	 * @returns {Object}
	 */
	static sendError(e) {
		let error = {}
		if (e.getError) {
			error = e.getError()
		} else {
			throw e
		}

		return error
	}

	/**
	 * normalize return value for array
	 * @param {number} status - status code
	 * @param {Object} array - returning array
	 * @param {number} count - returning count
	 * @param {Object} [others = null] - other returning object
	 * @returns {Object}
	 */
	static sendArray(status, array, count, others = null) {
		let body = Object.assign({
			rows: array,
			count: count
		}, others || {})
		return {
			status,
			body
		}
	}
}

module.exports = MaresAppService