Migrate from legacy API to URLSearchParams

.eslintrc.yml

@@ -104,7 +104,7 @@ rules:
 
   # Best Practices
   # https://github.com/mysticatea/eslint-plugin-node#best-practices
-  node/no-deprecated-api: off # FIXME
+  node/no-deprecated-api: error
 
   # Stylistic Issues
   # https://github.com/mysticatea/eslint-plugin-node#stylistic-issues

.mocharc.yml

@@ -1,4 +1,4 @@
-# TODO: throw-deprecation: true
+throw-deprecation: true
 check-leaks: true
 require:
   - '@babel/register'

src/__tests__/http-test.js

@@ -1,7 +1,6 @@
 // @flow strict
 
 import zlib from 'zlib';
-import { stringify } from 'querystring';
 
 import connect from 'connect';
 import express from 'express';
@@ -61,10 +60,17 @@ const TestSchema = new GraphQLSchema({
   }),
 });
 
-function urlString(urlParams?: ?{ [param: string]: mixed, ... }) {
+function stringifyURLParams(urlParams?: {
+  [param: string]: string,
+  ...
+}): string {
+  return new URLSearchParams(urlParams).toString();
+}
+
+function urlString(urlParams?: { [param: string]: string, ... }): string {
   let string = '/graphql';
   if (urlParams) {
-    string += '?' + stringify(urlParams);
+    string += '?' + stringifyURLParams(urlParams);
   }
   return string;
 }
@@ -599,7 +605,7 @@ function urlString(urlParams?: ?{ [param: string]: mixed, ... }) {
 
         const response = await request(app)
           .post(urlString())
-          .send(stringify({ query: '{test}' }));
+          .send(stringifyURLParams({ query: '{test}' }));
 
         expect(response.text).to.equal('{"data":{"test":"Hello World"}}');
       });
@@ -660,7 +666,7 @@ function urlString(urlParams?: ?{ [param: string]: mixed, ... }) {
         const response = await request(app)
           .post(urlString())
           .send(
-            stringify({
+            stringifyURLParams({
               query: 'query helloWho($who: String){ test(who: $who) }',
               variables: JSON.stringify({ who: 'Dolly' }),
             }),
@@ -709,7 +715,7 @@ function urlString(urlParams?: ?{ [param: string]: mixed, ... }) {
             }),
           )
           .send(
-            stringify({
+            stringifyURLParams({
               query: 'query helloWho($who: String){ test(who: $who) }',
             }),
           );
@@ -1106,7 +1112,7 @@ function urlString(urlParams?: ?{ [param: string]: mixed, ... }) {
         const prettyResponse = await request(app).get(
           urlString({
             query: '{test}',
-            pretty: 1,
+            pretty: '1',
           }),
         );
 
@@ -1122,7 +1128,7 @@ function urlString(urlParams?: ?{ [param: string]: mixed, ... }) {
         const unprettyResponse = await request(app).get(
           urlString({
             query: '{test}',
-            pretty: 0,
+            pretty: '0',
           }),
         );
 

src/index.js

@@ -1,6 +1,5 @@
 // @flow strict
 
-import url from 'url';
 import { type IncomingMessage, type ServerResponse } from 'http';
 
 import accepts from 'accepts';
@@ -447,9 +446,9 @@ export type GraphQLParams = {|
  */
 module.exports.getGraphQLParams = getGraphQLParams;
 async function getGraphQLParams(request: $Request): Promise<GraphQLParams> {
+  const { url = '' } = request;
+  const urlData = new URLSearchParams(url.split('?')[1]);
   const bodyData = await parseBody(request);
-  const urlData =
-    (request.url != null && url.parse(request.url, true).query) || {};
 
   return parseGraphQLParams(urlData, bodyData);
 }
@@ -458,17 +457,17 @@ async function getGraphQLParams(request: $Request): Promise<GraphQLParams> {
  * Helper function to get the GraphQL params from the request.
  */
 function parseGraphQLParams(
-  urlData: { [param: string]: string, ... },
+  urlData: URLSearchParams,
   bodyData: { [param: string]: mixed, ... },
 ): GraphQLParams {
   // GraphQL Query string.
-  let query = urlData.query ?? bodyData.query;
+  let query = urlData.get('query') ?? bodyData.query;
   if (typeof query !== 'string') {
     query = null;
   }
 
   // Parse the variables if needed.
-  let variables = urlData.variables ?? bodyData.variables;
+  let variables = urlData.get('variables') ?? bodyData.variables;
   if (typeof variables === 'string') {
     try {
       variables = JSON.parse(variables);
@@ -480,12 +479,12 @@ function parseGraphQLParams(
   }
 
   // Name of GraphQL operation to execute.
-  let operationName = urlData.operationName || bodyData.operationName;
+  let operationName = urlData.get('operationName') || bodyData.operationName;
   if (typeof operationName !== 'string') {
     operationName = null;
   }
 
-  const raw = urlData.raw !== undefined || bodyData.raw !== undefined;
+  const raw = urlData.get('raw') != null || bodyData.raw !== undefined;
 
   return { query, variables, operationName, raw };
 }