@errpulse/node

@errpulse/node

Backend error monitoring SDK for Node.js, Express, and Next.js. Part of ErrPulse — the error monitoring tool that runs with one command.

Installation

npm install @errpulse/node

Quick Start

// Zero-config — auto-captures uncaught exceptions, rejections, console.error
import "@errpulse/node";

That's it. Errors are sent to http://localhost:3800 by default.

Express Integration

import express from "express";
import { init, expressRequestHandler, expressErrorHandler } from "@errpulse/node";

init({ serverUrl: "http://localhost:3800", projectId: "my-api" });

const app = express();
app.use(expressRequestHandler()); // Track all requests — add first
// ... your routes ...
app.use(expressErrorHandler()); // Catch route errors — add last

Next.js Integration

import { withErrPulse } from "@errpulse/node";

export const GET = withErrPulse(async (req) => {
  const data = await db.query();
  return Response.json({ data });
});

Manual Capture

import { captureError, captureMessage } from "@errpulse/node";

captureError(new Error("Payment failed"), { userId: "123" });
captureMessage("Deployment started", "info", { version: "2.0" });

What Gets Caught

Error Type	How
Uncaught exceptions	process.on('uncaughtException')
Unhandled promise rejections	process.on('unhandledRejection')
Express route errors	Error handler middleware
Next.js API route errors	withErrPulse() wrapper
console.error calls	Monkey-patch
Memory warnings	Periodic process.memoryUsage() check
All HTTP requests	Request handler middleware

Configuration

import { init } from "@errpulse/node";

init({
  serverUrl: "http://localhost:3800",
  projectId: "my-api",
  enabled: true,
  sampleRate: 1.0,
  captureConsoleErrors: true,
  captureUncaughtExceptions: true,
  captureUnhandledRejections: true,
  monitorMemory: true,
  memoryThresholdMB: 512,
  beforeSend: (event) => event, // Modify or drop events
});

Documentation

• Full SDK Docs
• GitHub Repository

License

MIT