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Node.js Rejection Handling and N-API Enhancements

2 posts · Mar 2019 – Oct 2020

What this trail covers

Node.js 15 introduced significant changes to unhandled promise rejection handling, defaulting to process termination for better debugging. It also included npm 7 with default peer dependency installation, N-API Version 7 with new array buffer manipulation methods, and refinements to experimental Async Local Storage APIs. Node.js 14.x became the next LTS version, featuring stable Diagnostic Reports and full ICU data.

All IBM trails
  1. Node.js 15 release: Updated handling of rejections, npm 7, N-API Version 7, and moreThis post details the Node.js 15 release, focusing on the updated default behavior for unhandled promise rejections which now terminate the process instead of issuing warnings. It also highlights the inclusion of npm 7 with default peer dependency installation, N-API Version 7 with `napi_detach_arraybuffer` and `napi_is_detached_arraybuffer` methods, and continued refinement of the experimental Async Local Storage APIs. The post also notes that Node.js 14.x is becoming the LTS version, featuring stable Diagnostic Reports and built-in ICU data.
  2. TLS1.3 in Node.jsThis post details the integration of TLS 1.3 support into Node.js. It explains the prerequisite of updating to OpenSSL 1.1.1 and the subsequent work required to handle protocol-level differences in TLS 1.3, such as handshake variations, session ticket handling, and event timing. The post also highlights the security improvements of TLS 1.3, including assured forward secrecy, removal of RSA key agreement, a reduced and safer set of cipher suites, and the mandatory use of AEAD cipher modes.