Add graphql-upload (#35276)

types/graphql-upload/graphql-upload-tests.ts

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+import express from "express";
+import Koa from "koa";
+import { graphqlUploadExpress, graphqlUploadKoa } from "graphql-upload";
+
+express()
+  .use(graphqlUploadExpress({ maxFileSize: 10000000, maxFiles: 10 }))
+  .listen(3000);
+
+new Koa()
+  .use(graphqlUploadKoa({ maxFileSize: 10000000, maxFiles: 10 }))
+  .listen(3000);

types/graphql-upload/index.d.ts

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+// Type definitions for graphql-upload 8.0
+// Project: https://github.com/jaydenseric/graphql-upload#readme
+// Definitions by: Mike Marcacci <https://github.com/mike-marcacci>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.3
+
+/* tslint:disable:no-unnecessary-generics */
+
+import { IncomingMessage, ServerResponse } from "http";
+import { GraphQLScalarType } from "graphql";
+import { RequestHandler } from "express";
+import { Middleware } from "koa";
+
+export interface UploadOptions {
+  maxFieldSize?: number;
+  maxFileSize?: number;
+  maxFiles?: number;
+}
+
+export interface GraphQLOperation {
+  query: string;
+  operationName?: null | string;
+  variables?: null | unknown;
+}
+
+export function processRequest(
+  request: IncomingMessage,
+  response: ServerResponse,
+  uploadOptions?: UploadOptions
+): Promise<GraphQLOperation | GraphQLOperation[]>;
+
+export function graphqlUploadExpress(
+  uploadOptions?: UploadOptions
+): RequestHandler;
+
+export function graphqlUploadKoa <StateT = any, CustomT = {}>(
+  uploadOptions?: UploadOptions
+): Middleware<StateT, CustomT>;
+
+export const GraphQLUpload: GraphQLScalarType;

types/graphql-upload/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "esModuleInterop": true
+    },
+    "files": [
+        "index.d.ts",
+        "graphql-upload-tests.ts"
+    ]
+}

types/graphql-upload/tslint.json

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+{ "extends": "dtslint/dt.json" }