DS Express Errors — v1.7.0 & v1.7.1 Release Notes

In this post, I’m covering updates from v1.7.0 and v1.7.1.
Version 1.7.0 introduced new features and internal improvements, while 1.7.1 focuses on bug fixes, security hardening, and stability.

ds-express-errors v1.7.0 – January 5, 2026

Changes

• Added express-validator support

• Updated error mapping logic for Mongoose and Prisma

• Added validation checks for setConfig

• Refactored internal error handling logic

• Fixed a logger-related bug

What this means

Version 1.7.0 improves validation support, provides more reliable database error mapping, and strengthens overall logging behavior.

ds-express-errors v1.7.1 – January 7, 2026

This patch release focuses on security, stability, and edge-case fixes discovered shortly after v1.7.0.

Security

• Fixed a log injection vulnerability in the internal logger

Fixes & Improvements

• Improved validation checks for setConfig to prevent invalid configurations

• Fixed a crash in custom mappers when returning Promises or async functions

• Enhanced environment configuration checks for safer runtime detection

• Added a missing fallback statusCode in defaultErrorAnswer to prevent unexpected 500 responses

Why you should upgrade

If you use custom mappers, custom configuration, or rely on internal logging, upgrading to v1.7.1 is strongly recommended for improved safety and reliability.

Upgrade Notes

Update to the latest version:

npm install ds-express-errors@latest

Additional notes:

express-validator: Make sure validators are properly registered in your routes to take full advantage of the new support.

Custom mappers / setConfig: Ensure your configuration and custom mappers follow the validation rules to avoid runtime errors.

Example usage:

const { setConfig, errorHandler } = require('ds-express-errors');

setConfig({
  customLogger: logger,
  customMappers: [
    (err) => {
      if (err.name === 'newError') {
        return Errors.BadRequest();
      }
    }
  ],
  devEnvironments: ['development', 'dev'],
  formatError: (err, { req, isDev }) => ({
    success: false,
    error: {
      code: err.statusCode,
      message: err.message,
      ...(isDev ? { debug_stack: err.stack } : {})
    }
  })
});

const app = express();
// ... your routes ...
app.use(errorHandler);

More details:

Website & full changelog: changelog