v3.10.18: feat(#368) add config for HTTP keep alive via axios

package.json

@@ -1,6 +1,6 @@
 {
   "name": "bybit-api",
-  "version": "3.10.17",
+  "version": "3.10.18",
   "description": "Complete & robust Node.js SDK for Bybit's REST APIs and WebSockets, with TypeScript & strong end to end tests.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

src/util/BaseRestClient.ts

@@ -1,5 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 import axios, { AxiosRequestConfig, AxiosResponse, Method } from 'axios';
+import https from 'https';
 
 import {
   APIID,
@@ -137,6 +138,16 @@ export default abstract class BaseRestClient {
       },
     };
 
+    // If enabled, configure a https agent with keepAlive enabled
+    if (this.options.keepAlive) {
+      // For more advanced configuration, raise an issue on GitHub or use the "networkOptions"
+      // parameter to define a custom httpsAgent with the desired properties
+      this.globalRequestOptions.httpsAgent = new https.Agent({
+        keepAlive: true,
+        keepAliveMsecs: this.options.keepAliveMsecs,
+      });
+    }
+
     this.baseUrl = getRestBaseUrl(!!this.options.testnet, restOptions);
     this.key = this.options.key;
     this.secret = this.options.secret;

src/util/requestUtils.ts

@@ -29,6 +29,19 @@ export interface RestClientOptions {
    */
   enable_time_sync?: boolean;
 
+  /**
+   * Enable keep alive for REST API requests (via axios).
+   * See: https://github.com/tiagosiebler/bybit-api/issues/368
+   */
+  keepAlive?: boolean;
+
+  /**
+   * When using HTTP KeepAlive, how often to send TCP KeepAlive packets over sockets being kept alive. Default = 1000.
+   * Only relevant if keepAlive is set to true.
+   * Default: 1000 (defaults comes from https agent)
+   */
+  keepAliveMsecs?: number;
+
   /** How often to sync time drift with bybit servers */
   sync_interval_ms?: number | string;