New source found from dndbeyond.com

ddb_main/node_modules/axios/lib/helpers/buildURL.js

@@ -1,15 +1,22 @@
 'use strict';
 
-var utils = require('./../utils');
+import utils from '../utils.js';
+import AxiosURLSearchParams from './AxiosURLSearchParams.js';
 
-function encode(val) {
-  return encodeURIComponent(val).
-    replace(/%3A/gi, ':').
-    replace(/%24/g, '$').
-    replace(/%2C/gi, ',').
-    replace(/%20/g, '+').
-    replace(/%5B/gi, '[').
-    replace(/%5D/gi, ']');
+/**
+ * It replaces URL-encoded forms of `:`, `$`, `,`, and spaces with
+ * their plain counterparts (`:`, `$`, `,`, `+`).
+ *
+ * @param {string} val The value to be encoded.
+ *
+ * @returns {string} The encoded value.
+ */
+export function encode(val) {
+  return encodeURIComponent(val)
+    .replace(/%3A/gi, ':')
+    .replace(/%24/g, '$')
+    .replace(/%2C/gi, ',')
+    .replace(/%20/g, '+');
 }
 
 /**
@@ -17,54 +24,43 @@ function encode(val) {
  *
  * @param {string} url The base of the url (e.g., http://www.google.com)
  * @param {object} [params] The params to be appended
+ * @param {?(object|Function)} options
+ *
  * @returns {string} The formatted url
  */
-module.exports = function buildURL(url, params, paramsSerializer) {
-  /*eslint no-param-reassign:0*/
+export default function buildURL(url, params, options) {
   if (!params) {
     return url;
   }
 
-  var serializedParams;
-  if (paramsSerializer) {
-    serializedParams = paramsSerializer(params);
-  } else if (utils.isURLSearchParams(params)) {
-    serializedParams = params.toString();
+  const _encode = (options && options.encode) || encode;
+
+  const _options = utils.isFunction(options)
+    ? {
+        serialize: options,
+      }
+    : options;
+
+  const serializeFn = _options && _options.serialize;
+
+  let serializedParams;
+
+  if (serializeFn) {
+    serializedParams = serializeFn(params, _options);
   } else {
-    var parts = [];
-
-    utils.forEach(params, function serialize(val, key) {
-      if (val === null || typeof val === 'undefined') {
-        return;
-      }
-
-      if (utils.isArray(val)) {
-        key = key + '[]';
-      } else {
-        val = [val];
-      }
-
-      utils.forEach(val, function parseValue(v) {
-        if (utils.isDate(v)) {
-          v = v.toISOString();
-        } else if (utils.isObject(v)) {
-          v = JSON.stringify(v);
-        }
-        parts.push(encode(key) + '=' + encode(v));
-      });
-    });
-
-    serializedParams = parts.join('&');
+    serializedParams = utils.isURLSearchParams(params)
+      ? params.toString()
+      : new AxiosURLSearchParams(params, _options).toString(_encode);
   }
 
   if (serializedParams) {
-    var hashmarkIndex = url.indexOf('#');
+    const hashmarkIndex = url.indexOf('#');
+
     if (hashmarkIndex !== -1) {
       url = url.slice(0, hashmarkIndex);
     }
-
     url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
   }
 
   return url;
-};
+}