nest-request-interceptor
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117 lines • 5.22 kB
JavaScript
;
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);
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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);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.HTTPInterceptor = void 0;
const common_1 = require("@nestjs/common");
const core_1 = require("@nestjs/core");
const rxjs_1 = require("rxjs");
const operators_1 = require("rxjs/operators");
const log_1 = require("../utils/log");
let HTTPInterceptor = class HTTPInterceptor {
/**
* Constructor for HTTPInterceptor.
*
* @param {Reflector} [reflector] - Optional NestJS Reflector for handling metadata.
*/
constructor(reflector) {
this.reflector = reflector;
}
/**
* Intercepts incoming HTTP requests and logs relevant details.
*
* Logs:
* - HTTP method
* - URL
* - Status code (color-coded)
* - Response time
* - Response size (if available)
* - Errors (if any)
*
* @param {ExecutionContext} context - Execution context of the HTTP request.
* @param {CallHandler} next - Next handler in the request pipeline.
* @returns {Observable<any>} Observable with request response or error.
*/
intercept(context, next) {
const startTime = Date.now();
// Check if logging is skipped for this request
const skip = this.reflector
? this.reflector.getAllAndOverride("skip-request-interceptor", [
context.getHandler(),
context.getClass()
])
: false;
const http = context.switchToHttp();
const req = http.getRequest();
const res = http.getResponse();
return next.handle().pipe((0, operators_1.tap)(() => {
const duration = Date.now() - startTime;
const statusCodeColor = this.getStatusCodeColor(res.statusCode);
if (!skip)
(0, log_1.default)(`\x1b[34m${req.method}\x1b[0m ${req.url} ${statusCodeColor || "-"} ${res.getHeader("content-length") || "-"} ${duration}ms`);
}), (0, operators_1.catchError)(error => {
var _a;
if (!error.status || error.status >= 500)
console.error(error);
const duration = Date.now() - startTime;
const statusCode = error.status || error.statusCode || common_1.HttpStatus.INTERNAL_SERVER_ERROR;
const statusCodeColor = this.getStatusCodeColor(statusCode);
let message = error.message || error;
if ((_a = error.response) === null || _a === void 0 ? void 0 : _a.message) {
if (typeof error.response.message === "string")
message = error.response.message;
else
message = error.response.message.join(", ");
}
(0, log_1.default)(`\x1b[34m${req.method}\x1b[0m ${req.url} ${statusCodeColor || "-"} ${res.getHeader("content-length") || "-"} ${duration}ms \x1b[33m${message}\x1b[0m`);
return (0, rxjs_1.throwError)(() => error);
}));
}
/**
* Returns an ANSI color-coded string for the given HTTP status code.
*
* Colors:
* - Green (2xx): Successful responses
* - Blue (3xx): Redirections
* - Yellow (4xx): Client errors
* - Red (5xx): Server errors
*
* @param {number} statusCode - HTTP response status code.
* @returns {string} Color-coded status code string.
*/
getStatusCodeColor(statusCode) {
if (statusCode >= 200 && statusCode < 300) {
return `\x1b[32m${statusCode}\x1b[0m`; // Green for 2xx
}
else if (statusCode >= 300 && statusCode < 400) {
return `\x1b[34m${statusCode}\x1b[0m`; // Blue for 3xx
}
else if (statusCode >= 400 && statusCode < 500) {
return `\x1b[33m${statusCode}\x1b[0m`; // Yellow for 4xx
}
else if (statusCode >= 500) {
return `\x1b[31m${statusCode}\x1b[0m`; // Red for 5xx
}
else {
return `${statusCode}`; // Default no color
}
}
};
exports.HTTPInterceptor = HTTPInterceptor;
exports.HTTPInterceptor = HTTPInterceptor = __decorate([
(0, common_1.Injectable)(),
__param(0, (0, common_1.Optional)()),
__param(0, (0, common_1.Inject)(core_1.Reflector)),
__metadata("design:paramtypes", [core_1.Reflector])
], HTTPInterceptor);
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