Add JSDoc to server/*

Signed-off-by: Matthew Nickson <mnickson@sidingsmedia.com>

server/rate-limiter.js

@@ -2,11 +2,26 @@ const { RateLimiter } = require("limiter");
 const { debug } = require("../src/util");
 
 class KumaRateLimiter {
+    /**
+     * @param {Object} config Rate limiter configuration object
+     */
     constructor(config) {
         this.errorMessage = config.errorMessage;
         this.rateLimiter = new RateLimiter(config);
     }
 
+    /**
+     * Callback for pass
+     * @callback passCB
+     * @param {Object} err Too many requests
+     */
+
+    /**
+     * Should the request be passed through
+     * @param {passCB} callback
+     * @param {number} [num=1] Number of tokens to remove
+     * @returns {Promise<boolean>}
+     */
     async pass(callback, num = 1) {
         const remainingRequests = await this.removeTokens(num);
         debug("Rate Limit (remainingRequests):" + remainingRequests);
@@ -22,6 +37,11 @@ class KumaRateLimiter {
         return true;
     }
 
+    /**
+     * Remove a given number of tokens
+     * @param {number} [num=1] Number of tokens to remove
+     * @returns {Promise<number>}
+     */
     async removeTokens(num = 1) {
         return await this.rateLimiter.removeTokens(num);
     }