nest-request-interceptor
Version:
96 lines • 4.27 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);
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);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.RPCInterceptor = void 0;
const core_1 = require("@nestjs/core");
const common_1 = require("@nestjs/common");
const microservices_1 = require("@nestjs/microservices");
const operators_1 = require("rxjs/operators");
const log_1 = require("../utils/log");
let RPCInterceptor = class RPCInterceptor {
/**
* Constructor for RPCInterceptor.
*
* @param {Reflector} [reflector] - Optional NestJS Reflector for handling metadata.
*/
constructor(reflector) {
this.reflector = reflector;
}
/**
* Intercepts incoming RPC requests and logs relevant details.
*
* Logs:
* - Message ID (if available)
* - RPC pattern
* - Execution time
* - Errors (if any)
*
* @param {ExecutionContext} context - Execution context of the RPC 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 rpc = context.switchToRpc();
const ctx = rpc.getContext();
const msg = ctx.getMessage();
let id;
let pattern;
try {
const data = JSON.parse(msg.content.toString());
id = data.id;
pattern = data.pattern;
}
catch (error) {
(0, log_1.default)(`Error parsing message content: ${error.message}`);
return next.handle();
}
if (!skip)
(0, log_1.default)(`\x1b[34m${id ? "REQUEST" : "RECEIVED"}\x1b[0m ${id || "-"} ${pattern}`);
return next.handle().pipe((0, operators_1.tap)(() => {
const duration = Date.now() - startTime;
if (!skip)
(0, log_1.default)(`\x1b[32m${id ? "SEND" : "EMIT"}\x1b[0m ${id || "-"} ${pattern} ${duration}ms`);
}), (0, operators_1.catchError)(error => {
var _a;
if (!error.status || error.status >= 500)
console.error(error);
const duration = Date.now() - startTime;
let message = error.message || error;
if ((_a = error.response) === null || _a === void 0 ? void 0 : _a.message) {
if (typeof error.response.message === "string")
message = error.response.message;
else
message = error.response.message.join(", ");
}
(0, log_1.default)(`\x1b[31m${id ? "SEND" : "EMIT"}\x1b[0m ${id || "-"} ${pattern} ${duration}ms - \x1b[33m${message}\x1b[0m`);
throw new microservices_1.RpcException(message);
}));
}
};
exports.RPCInterceptor = RPCInterceptor;
exports.RPCInterceptor = RPCInterceptor = __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])
], RPCInterceptor);
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