nestjs-mvc-tools/dist/lib/middlewares/nest-mvc-view.middleware.js

NestJS MVC Tools is a small set of tools designed to help you get started more easily with traditional web development approaches in NestJS.

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.NestMvcViewMiddleware = void 0;
const common_1 = require("@nestjs/common");
const edge_js_service_1 = require("../services/edge-js.service");
const nest_mvc_logger_service_1 = require("../services/nest-mvc-logger.service");
const nest_mvc_options_service_1 = require("../services/nest-mvc-options.service");
let NestMvcViewMiddleware = class NestMvcViewMiddleware {
    constructor(edgeJsService, optionsService, logger) {
        this.edgeJsService = edgeJsService;
        this.optionsService = optionsService;
        this.logger = logger;
    }
    use(req, res, next) {
        // 제외 경로 체크
        if (this.optionsService.excludePaths.some((path) => req.originalUrl.startsWith(path))) {
            return next();
        }
        // 매 요청마다 새로운 렌더러 생성
        // request 객체 view 속성에 생성된 랜더러 참조
        // 해당 속성은 라이브러리를 사용하는 nestjs의 인터셉터, 가드, 컨트롤러에서 사용될 수 있음
        const edge = this.edgeJsService.getEdgeInstance();
        req.view = edge.createRenderer();
        this.logger.debug("Create EdgeJs Renderer");
        // 헬퍼 등록이 안되어있으면 건너뜀
        const helperEntries = Object.entries(this.optionsService.viewOptions.helpers);
        if (helperEntries.length === 0) {
            return next();
        }
        // 뷰에서 사용할 헬퍼 함수들을 수집
        const helpers = {};
        helperEntries.forEach(([key, helperFactory]) => {
            const helperFn = helperFactory(req);
            helpers[key] = helperFn; // 헬퍼 함수를 키-값 쌍으로 저장
        });
        req.view.share(helpers);
        return next();
    }
};
exports.NestMvcViewMiddleware = NestMvcViewMiddleware;
exports.NestMvcViewMiddleware = NestMvcViewMiddleware = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [edge_js_service_1.EdgeJsService,
        nest_mvc_options_service_1.NestMvcOptionsService,
        nest_mvc_logger_service_1.NestMvcLoggerService])
], NestMvcViewMiddleware);