Add missing parameter types

Author: danielrearden

src/__tests__/http-test.js

@@ -19,6 +19,7 @@ import {
  GraphQLNonNull,
  GraphQLString,
  GraphQLError,
+ ValidationContext,
  BREAK,
  Source,
  validate,
@@ -75,11 +76,13 @@ function urlString(urlParams?: { [param: string]: string, ... }): string {
  return string;
 }
 
-[
+const implementations: Array<[(...args: Array<any>) => any, string]> = [
  [connect, 'connect'],
  [express, 'express'],
  [restify.createServer, 'restify'],
-].forEach(([serverImpl, name]) => {
+];
+
+implementations.forEach(([serverImpl, name]) => {
  function server() {
  const app = serverImpl();
  if (app.set) {
@@ -94,12 +97,12 @@ function urlString(urlParams?: { [param: string]: string, ... }): string {
  return app;
  }
 
- function get(app, ...args) {
+ function get(app: any, ...args: Array<any>) {
  // Connect only likes using app.use.
  return app.get ? app.get(...args) : app.use(...args);
  }
 
- function post(app, ...args) {
+ function post(app: any, ...args: Array<any>) {
  // Connect only likes using app.use.
  return app.post ? app.post(...args) : app.use(...args);
  }
@@ -2016,7 +2019,7 @@ function urlString(urlParams?: { [param: string]: string, ... }): string {
  });
 
  describe('Custom validation rules', () => {
- const AlwaysInvalidRule = function (context) {
+ const AlwaysInvalidRule = function (context: ValidationContext) {
  return {
  enter() {
  context.reportError(

src/parseBody.js

@@ -76,7 +76,10 @@ export async function parseBody(
 const jsonObjRegex = /^[ \t\n\r]*\{/;
 
 // Read and parse a request body.
-async function readBody(req, typeInfo) {
+async function readBody(
+ req: $Request,
+ typeInfo: {| type: string, parameters: { [param: string]: string, ... } |},
+) {
  const charset = (typeInfo.parameters.charset ?? 'utf-8').toLowerCase();
 
  // Assert charset encoding per JSON RFC 7159 sec 8.1
@@ -105,7 +108,7 @@ async function readBody(req, typeInfo) {
 }
 
 // Return a decompressed stream, given an encoding.
-function decompressed(req, encoding) {
+function decompressed(req: $Request, encoding: string) {
  switch (encoding) {
  case 'identity':
  return req;

src/renderGraphiQL.js

@@ -19,9 +19,9 @@ export type GraphiQLOptions = {|
 |};
 
 // Ensures string values are safe to be used within a <script> tag.
-function safeSerialize(data) {
+function safeSerialize(data: mixed) {
  return data != null
- ? JSON.stringify(data).replace(/\//g, '\\/')
+ ? ((JSON.stringify(data): any): string).replace(/\//g, '\\/')
  : 'undefined';
 }