An NMDC / ADC client protocol library for Golang.

Install via go get: go get


  • Connect to NMDC and ADC hubs
  • SSL (NMDCS/ADCS) with option to ignore certificate validity
  • Autodetect NMDC/ADC protocol by timeout
  • Send public and private chat messages, UserCommand support
  • Protocol keepalives
  • Parse user details (including UserIP2 for NMDC)
  • Fast NMDC login via NoHello and QuickList
  • Both synchronous (callback) and asynchronous (channel) -based APIs, including example


2018-12-31 0.18.0

  • BREAKING: Return error from more functions
  • Feature: Add new EVENT constant to detect connection failures caused by bad password, hub full, etc
  • Convert to Go Modules

2018-03-24 0.17.0

  • Feature: Re-add sayInfo() function for reannouncing MyINFO changes

2017-11-26 0.16.0

  • Feature: Support connecting to ADC hubs
  • BREAKING: Simplify connection API
  • Vendor new dependency on (MIT license)

2017-11-14 0.15.0

  • Feature: Fallback reconnection if no data (not even keepalives) are recieved from the hub in 24 hours
  • Fix an issue with detecting protocol messages inside multi-line chat messages
  • Update examples and the default client version number

2017-02-09 0.14.0

  • Fix an issue with crashing on malformed IP addresses supplied by the hub

2017-02-09 0.13.0

  • Feature: Implement UserIP2 extension, to retrieve IP addresses of other users
  • Enhancement: Implement QuickList extension (reduce one network roundtrip during initial connection)
  • Enhancement: Implement NoHello extension (faster connection performance)
  • Enhancement: Implement ChatOnly extension
  • Fix an issue with not notifying client on all MyINFO updates

2017-02-05 0.12.0

  • Fix an issue with mutex deadlock when accessing user information from a callback
  • Fix an issue with silent disconnection if a password was required but not present

2016-11-29 0.11.0

  • BREAKING: Remove some exported methods
  • BREAKING: Fix an issue with missing sufficient parameters in the synchronous API
  • Enhancement: Improve output under godoc
  • Fix an issue with special characters appearing in recieved private messages
  • Fix an issue with parsing active/passive connection modes
  • Fix an issue with errors appearing on stdout

2016-10-08 0.10.0

  • Feature: Support $UserCommand

2016-08-27 0.9.0

  • Fix an issue with parsing MyINFO strings with zero-length speed descriptions
  • Fix an issue with not storing updated profile information

2016-05-10 0.8.0

  • Enhancement: Separate ClientTag and ClientVersion in UserInfo structs

2016-05-08 0.7.0

  • BREAKING: Remove direct access to HubConnection.Users map
  • Feature: Threadsafe user map accessor
  • Feature: Option to disable auto-reconnection
  • Feature: New Disconnect(), UserCount(), UserExists() functions
  • Enhancement: Support $OpList, add IsOperator member to UserInfo structs
  • Refactor into multiple files

2016-04-16 0.6.0

  • Fix an issue with calling panic() on certain types of abnormal network failure

2016-04-04 0.5.0

  • Enhancement: Support protocol keepalives
  • Enhancement: Support hub redirects ($ForceMove)

2016-04-03 0.4.0

  • Feature: Add synchronous API
  • Fix an issue with reading HubConnection's state parameter
  • Fix an issue with buffered protocol commands

2016-04-03 0.3.0

  • Feature: Add SkipVerifyTLS option
  • Fix an issue with calling panic() if connection failed

2016-04-02 0.2.0

  • Enhancement: Support NMDC-over-TLS (NMDCS)
  • Fix an issue recieving private messages
  • Fix an issue with calling panic() if connection failed
  • Fix an issue parsing URIs without a specified port
  • Move sample content into directory with excluded build

2016-02-12 0.1.0

  • Initial public release