feat: migrate to picoquery

Migrates to using picoquery for query string parsing, a much faster and
lighter library.

Note that we have to decode the stringified query in some cases since we
were previously double encoding.

package.json

@@ -86,7 +86,7 @@
     "node-fetch-commonjs": "^3.3.2",
     "openapi-path-templating": "^1.5.1",
     "openapi-server-url-templating": "^1.0.0",
-    "qs": "^6.10.2",
+    "picoquery": "^1.4.0",
     "ramda-adjunct": "^5.0.0",
     "neotraverse": "=0.6.15"
   },

src/http/serializers/request/index.js

@@ -1,8 +1,17 @@
-import qs from 'qs';
+import * as pq from 'picoquery';
 
 import formatKeyValue from './format.js';
 import { isFile, isArrayOfFile, FileWithData } from './file.js';
 
+const PQ_OPTIONS = {
+  arrayRepeat: true,
+  arrayRepeatSyntax: 'repeat',
+};
+
+function stringifyQuery(obj) {
+  return decodeURIComponent(pq.stringify(obj, PQ_OPTIONS));
+}
+
 function buildFormData(reqForm) {
   /**
    * Build a new FormData instance, support array as field value
@@ -60,7 +69,7 @@ export function encodeFormOrQuery(data) {
     return result;
   }, {});
 
-  return qs.stringify(encodedQuery, { encode: false, indices: false }) || '';
+  return stringifyQuery(encodedQuery);
 }
 
 // If the request has a `query` object, merge it into the request.url, and delete the object
@@ -96,10 +105,10 @@ export function serializeRequest(req = {}) {
     let newStr = '';
 
     if (oriSearch) {
-      const oriQuery = qs.parse(oriSearch);
+      const oriQuery = pq.parse(oriSearch, PQ_OPTIONS);
       const keysToRemove = Object.keys(query);
       keysToRemove.forEach((key) => delete oriQuery[key]);
-      newStr = qs.stringify(oriQuery, { encode: true });
+      newStr = pq.stringify(oriQuery, PQ_OPTIONS);
     }
 
     const finalStr = joinSearch(newStr, encodeFormOrQuery(query));