@takentrade/takentrade-libs/dist/utils/interceptors/response.interceptor.js

TakeNTrade shared libraries

"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 ResponseInterceptor_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ResponseInterceptor = void 0;
const common_1 = require("@nestjs/common");
const operators_1 = require("rxjs/operators");
const utils_1 = require("../utils");
let ResponseInterceptor = ResponseInterceptor_1 = class ResponseInterceptor {
    logger = new common_1.Logger(ResponseInterceptor_1.name);
    config;
    constructor(config = {}) {
        this.config = {
            includeTimestamp: true,
            includePath: true,
            includeRequestId: true,
            includeVersion: false,
            includeExecutionTime: true,
            defaultSuccessMessage: 'Request successful',
            ...config,
        };
    }
    intercept(context, next) {
        const startTime = Date.now();
        const request = context.switchToHttp().getRequest();
        const metadata = this.buildMetadata(request, startTime);
        return next.handle().pipe((0, operators_1.tap)(() => {
            this.logger.log(`${request.method} ${request.url} - ${Date.now() - startTime}ms`);
        }), (0, operators_1.map)((data) => {
            if (data instanceof utils_1.AppResponse) {
                return this.enhanceExistingResponse(data, metadata, startTime);
            }
            return this.createSuccessResponse(data, metadata, startTime);
        }));
    }
    buildMetadata(request, startTime) {
        const metadata = {};
        if (this.config.includeTimestamp) {
            metadata.timestamp = new Date().toISOString();
        }
        if (this.config.includePath) {
            metadata.path = `${request.method} ${request.url}`;
        }
        if (this.config.includeRequestId) {
            metadata.requestId = this.extractRequestId(request);
        }
        if (this.config.includeVersion && this.config.version) {
            metadata.version = this.config.version;
        }
        return metadata;
    }
    enhanceExistingResponse(response, metadata, startTime) {
        if (this.config.includeExecutionTime) {
            response.executionTime = Date.now() - startTime;
        }
        response.timestamp = response.timestamp || metadata.timestamp;
        response.path = response.path || metadata.path;
        response.requestId = response.requestId || metadata.requestId;
        response.version = response.version || metadata.version;
        return response;
    }
    createSuccessResponse(data, metadata, startTime) {
        if (this.config.includeExecutionTime) {
            metadata.executionTime = Date.now() - startTime;
        }
        return utils_1.AppResponse.success(this.config.defaultSuccessMessage, data, metadata);
    }
    extractRequestId(request) {
        return ((request.headers && request.headers['x-request-id']) ||
            (request.headers && request.headers['x-correlation-id']) ||
            (request.headers && request.headers['x-trace-id']) ||
            this.generateRequestId());
    }
    generateRequestId() {
        return `req_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
    }
};
exports.ResponseInterceptor = ResponseInterceptor;
exports.ResponseInterceptor = ResponseInterceptor = ResponseInterceptor_1 = __decorate([
    (0, common_1.Injectable)()
], ResponseInterceptor);