nralcm/lifecycle/dependency-resolver/dependency-injection.js

This is a framework based on NodeJs to manage rest api request lifecycle

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
require("reflect-metadata/Reflect");
const functions_1 = require("../../common/functions");
/**
 * Resolves Dependency Of controller
 */
class DependencyInjection {
    constructor(context, httpResponse) {
        this.context = context;
        this.httpResponse = httpResponse;
    }
    /**
     * Method to inject depedency
     * @param context HttpContext Object in case when resolving dependency of controller. undefined when resolving dependency of class
     * @param target class object when HttpContext undefined
     */
    inject() {
        let targetObject = this.context.controller;
        const constructorParameterTypes = Reflect.getMetadata("design:paramtypes", targetObject);
        if (constructorParameterTypes && constructorParameterTypes.length > 0) {
            const constructorParameters = functions_1.getConstructorParameters(targetObject);
            constructorParameterTypes.forEach((val, index) => {
                this.context.controllerObject[constructorParameters[index]] = new val();
                functions_1.circularInjection(val, this.context.controllerObject[constructorParameters[index]]);
            });
        }
        this.context.controllerObject["request"] = this.context.request;
        this.context.controllerObject["response"] = this.httpResponse;
    }
}
exports.DependencyInjection = DependencyInjection;