Ethereumjs Devp2p Versions Save

• Moved TypeScript type packages for lru-cache and bl from devDependencies to dependencies, PR #90

• Fixed TypeScript import issue causing problems when integrating the library in a TypeScript project, PR #88
• Updated k-bucket library to v5, added types from new @types/k-bucket package from @tomonari-t, PR #88

This release focuses on improving the debugging capabilities of the library. PR #72 reduces the verbosity of the log output to cut on noise on everyday debugging. There is a new verbose logger to retain the more verbose output (e.g. with full message bodies) which can be used like this:

DEBUG=devp2p:*,verbose node -r ts-node/register ./examples/peer-communication.ts

Other Logging Improvements

Relevant PRs #75 and #73:

• Added number of peers to refillConnections() debug message
• Replaced try/catch logic for EIP-8 auth check to avoid side-effects and get rid of misleading wrong-ecies-header debug output
• Moved debug output in BanList.add() after the set operation to get the correct size output
• Added debug message for DISCONNECT reason from peer (this was always some constant re-debug reason, and at the end it's mostly TOO_MANY_PEERS)
• Internalize detached logger output from the devp2p:util logger

Other Changes

• Refactored Peer class for better code readability, PR #77

There has also been a new high-level diagram added to the README which can be used to get an overview on the structure, available loggers and the event flow of the library (PR #76).

First TypeScript release of the library, see PR #56 for all the changes and associated discussion.

All source parts of the library have been ported to TypeScript and working with the library should now therefore be much more reliable due to the additional type safety features provided by the TypeScript language. The API of the library remains unchanged in a JavaScript context.

Noteworthy Changes from PR #56:

• Type additions for all method signatures and class members of all protocol components (dpt, eth, les, rlpx)
• Addition of various structuring interfaces (like PeerInfo for DPT message input) and enum constructs (like MESSAGE_CODES from the ETH protocol)
• Port of the examples to TypeScript
• Port of all the test cases to TypeScript
• Integration of the library into the common ethereumjs-config EthereumJS configuration setup (standard -> TSLint linting, docs with TypeDoc, TypeScript compilation, Prettier formatting rules)
• Lots of code cleanups and code part modernizations

Thanks @dryajov for all the great work on this! ❤

Other Updates:

• Added Node 12,13 support, upgrade from Travis to GitHub actions, PR #57
• Updated ethereumjs-common dependency to v1.5.1 for a bootnode update, PR #67
• Removed Node 6, 8 support, updated secp256k1 dependency to from v3.1.0 to v4.0.1, PR #68
• Updated keccak dependency to v3.0.0, PR #64
• Some dependency cleanup, PRs #62, #65, #58

• Fix connection error by ignoring RLPX peers with missing tcp port, PR #45

• Light client protocol (LES/2) implementation, PR #21
• LES/2 usage example, see: examples/peer-communication-les.js
• Better test coverage for upper-layer protocols (ETH, LES/2), PR #34

• First release providing a reliable ETH connection
• Fix Parity DPT ping echo hash bug preventing the library to connect to Parity clients, PR #32
• Fixed a bug not setting weHello in peer after sent HELLO msg

• Fix critical RLPX bug leading to not processing incoming EIP-8 Auth or Ack messages, PR #26
• Fix bug not forwarding k-bucket remove event through DPT (so peer:removed from DPT was not working), PR #27
• Fix updating ingressMac with wrong Auth msg leading to diverging Mac hashes, PR #29
• Fix bug not let first ETH status message emit a message event, PR #30
• Large rework of the test setup, additional DPT, RLPX and ETH simulator tests, improving test coverage from 48% to 84%, PR #25

• EIP-8 compatibility
• Improved debug messages
• Fixes a bug on DPT ping timeout being triggered even if pong message is received
• Only send connect event after both HELLO msgs are exchanged (fixes unreliable upper-protocol communication start)
• Connection reliability improvements for peer-communication example
• API documentation