Replace unix-dgram to unix_dgram_rs

CLAUDE.md

@@ -22,7 +22,7 @@ hot-shots is a Node.js client library for StatsD, DogStatsD (Datadog), and Teleg
 The library supports multiple transport protocols:
 - **UDP**: Default protocol using dgram sockets
 - **TCP**: Persistent connection with graceful error handling
-- **UDS**: Unix Domain Sockets (requires unix-dgram optional dependency)
+- **UDS**: Unix Domain Sockets (requires unix-dgram-rs dependency)
 - **Stream**: Raw stream protocol for custom transports
 
 ### Client Architecture

lib/transport.js

@@ -4,13 +4,11 @@ const net = require('net');
 const dns = require('dns');
 const os = require('os');
 const util = require('util');
+const unixDgram = require('unix_dgram_rs');
 const { PROTOCOL } = require('./constants');
 
 const debug = util.debuglog('hot-shots');
 
-// Imported below, only if needed
-let unixDgram;
-
 const UDS_PATH_DEFAULT = '/var/run/datadog/dsd.socket';
 
 /**
@@ -231,21 +229,10 @@ const createUdpTransport = args => {
 /**
  * Creates a Unix Domain Socket (UDS) transport for local IPC metric delivery.
  * Implements automatic retry logic with exponential backoff for EAGAIN and congestion errors.
- * Requires the optional unix-dgram dependency to be installed.
  * @param {Object} args - Configuration options including path and udsRetryOptions
  * @returns {Transport} A transport object implementing the Transport interface
  */
 const createUdsTransport = args => {
-  try {
-    // This will not always be available, as noted in the error message below
-    unixDgram = require('unix-dgram'); // eslint-disable-line global-require
-  } catch (err) {
-    throw new Error(
-      'The library `unix_dgram`, needed for the uds protocol to work, is not installed. ' +
-      'You need to pick another protocol to use hot-shots. ' +
-      'See the hot-shots README for additional details.'
-    );
-  }
   // Only retry-related options live here now
   const udsOpts = args.udsRetryOptions || {};
   const udsPath = args.path ? args.path : UDS_PATH_DEFAULT;
@@ -284,8 +271,8 @@ const createUdsTransport = args => {
   };
 
   /**
-   * Checks if an error is a congestion error from unix-dgram.
-   * unix-dgram returns an internal 'congestion' error (err === 1) via callback.
+   * Checks if an error is a congestion error from unix_dgram_rs.
+   * unix_dgram_rs returns an internal 'congestion' error (err === 1) via callback.
    * @param {Error} err - The error to check
    * @returns {boolean} True if the error is a congestion error
    */
@@ -351,7 +338,7 @@ const createUdsTransport = args => {
       socket.emit('close');
     },
     unref: () => {
-      throw new Error('unix-dgram does not implement unref for sockets');
+      throw new Error('unix_dgram_rs does not implement unref for sockets');
     }
   };
 };