Version 1.0.0.

Author: jaydenseric

.editorconfig

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+# http://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+insert_final_newline = true

.eslintignore

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+dist

.gitignore

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+node_modules
+npm-debug.log
+.DS_Store
+dist

apollo-upload-logo.svg

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+{
+  "name": "apollo-upload-server",
+  "version": "1.0.0",
+  "license": "MIT",
+  "author": {
+    "name": "Jayden Seric",
+    "email": "[email protected]",
+    "url": "http://jaydenseric.com"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jaydenseric/apollo-upload-server.git"
+  },
+  "dependencies": {
+    "formidable": "^1.1.1",
+    "mkdirp": "^0.5.1",
+    "object-path": "^0.11.3"
+  },
+  "devDependencies": {
+    "babel-eslint": "^7.1.1",
+    "babel-preset-env": "^1.1.8",
+    "babel-preset-stage-0": "^6.22.0",
+    "eslint": "^3.16.0",
+    "eslint-config-standard": "^6.2.1",
+    "eslint-plugin-promise": "^3.4.2",
+    "eslint-plugin-standard": "^2.0.1",
+    "rollup": "^0.41.4",
+    "rollup-plugin-babel": "^2.7.1",
+    "rollup-watch": "^3.2.2"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "prebuild": "npm run lint",
+    "build": "rollup --config",
+    "build:watch": "npm run build -- --watch",
+    "prepublish": "npm run build"
+  },
+  "main": "dist/apollo-upload-server.js",
+  "module": "dist/apollo-upload-server.module.js",
+  "files": [
+    "src",
+    "dist"
+  ],
+  "engines": {
+    "node": ">=6.4"
+  },
+  "babel": {
+    "presets": [
+      [
+        "env",
+        {
+          "targets": {
+            "node": 6.4
+          },
+          "modules": false,
+          "loose": true
+        }
+      ],
+      "stage-0"
+    ]
+  },
+  "eslintConfig": {
+    "parser": "babel-eslint",
+    "extends": [
+      "standard"
+    ]
+  }
+}

package.json

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+# ![Apollo upload server](https://cdn.rawgit.com/jaydenseric/apollo-upload-server/v1.0.0/apollo-upload-logo.svg)
+
+![NPM version](https://img.shields.io/npm/v/apollo-upload-server.svg?style=flat-square) ![Github issues](https://img.shields.io/github/issues/jaydenseric/apollo-upload-server.svg?style=flat-square) ![Github stars](https://img.shields.io/github/stars/jaydenseric/apollo-upload-server.svg?style=flat-square)
+
+In combination with [Apollo upload client](https://github.com/jaydenseric/apollo-upload-client), enhances [Apollo](http://apollodata.com) for intuitive file uploads via GraphQL mutations or queries.
+
+- Node >= 6.4 supported.
+- [MIT license](https://en.wikipedia.org/wiki/MIT_License).
+
+## Setup
+
+Install with [Yarn](https://yarnpkg.com):
+
+```
+yarn add apollo-upload-server
+```
+
+Add the server middleware just before `graphqlExpress`:
+
+```js
+import {apolloUploadExpress} from 'apollo-upload-server'
+```
+
+```js
+app.use(
+  '/graphql',
+  bodyParser.json(),
+  apolloUploadExpress({
+    // Optional, defaults to OS temp directory
+    uploadDir: '/tmp/uploads'
+  }),
+  graphqlExpress()
+)
+```
+
+Add this type to your schema:
+
+```graphql
+input File {
+  name: String!,
+  type: String!,
+  size: Int!,
+  path: String!
+}
+```
+
+Also setup [Apollo upload client](https://github.com/jaydenseric/apollo-upload-client).
+
+## Usage
+
+Once setup, you will be able to use [`File`](https://developer.mozilla.org/en/docs/Web/API/File) objects, [`FileList`](https://developer.mozilla.org/en/docs/Web/API/FileList) objects, or `File` arrays within query or mutation input variables. See the [client usage](https://github.com/jaydenseric/apollo-upload-client#Usage).
+
+The files upload to a temp directory. The file path and metadata will be avalable under the variable name in the resolver in the shape of the input `File` type in the GraphQL schema.
+
+The resolver variable will hold an array if it is populated as a list (`FileList` or `File` array) on the client – even if the list has only 1 file.
+
+### Single file
+
+In types:
+
+```graphql
+type Mutation {
+  updateUserAvatar (userId: String!, avatar: File!): User!
+}
+```
+
+In resolvers:
+
+```js
+updateUserAvatar (root, {userId, avatar}) {
+  // Auth…
+  // Update avatar…
+  console.log(`New avatar for user ${userId} is ${avatar.size} bytes`)
+  // Return fresh user data…
+}
+```
+
+See [client usage for this example](https://github.com/jaydenseric/apollo-upload-client#Single-file).
+
+### Multiple files
+
+In types:
+
+```graphql
+type Mutation {
+  updateGallery (galleryId: String!, images: [File!]!): Gallery!
+}
+```
+
+In resolvers:
+
+```js
+updateGallery (root, {galleryId, images}) {
+  // Auth…
+  // Update gallery…
+  console.log(`New images for gallery ${userId}:`)
+  images.forEach((image, index) => console.log(`Image ${index} is ${image.size} bytes`))
+  // Return fresh gallery data…
+}
+```
+
+See [client usage for this example](https://github.com/jaydenseric/apollo-upload-client#Multiple-files).
+
+## Caveats
+
+- No max upload file size option yet.
+
+## Inspiration
+
+- [@HriBB](https://github.com/HriBB)’s [apollo-upload-network-interface](https://github.com/HriBB/apollo-upload-network-interface) and [graphql-server-express-upload](https://github.com/HriBB/graphql-server-express-upload) projects.
+- [@danielbuechele](https://github.com/danielbuechele)’s [Medium article](https://medium.com/@danielbuechele/file-uploads-with-graphql-and-apollo-5502bbf3941e).
+- [@jessedvrs](https://github.com/jessedvrs)’s [example code](https://github.com/HriBB/apollo-upload-network-interface/issues/5#issuecomment-280018715).

readme.md

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+import babel from 'rollup-plugin-babel'
+
+const pkg = require('./package.json')
+
+export default {
+  entry: 'src/index.js',
+  external: Object.keys(pkg.dependencies),
+  plugins: [
+    babel()
+  ],
+  targets: [{
+    dest: pkg['main'],
+    format: 'cjs',
+    sourceMap: true
+  }, {
+    dest: pkg['module'],
+    format: 'es',
+    sourceMap: true
+  }]
+}

rollup.config.js

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+import mkdirp from 'mkdirp'
+import formidable from 'formidable'
+import objectPath from 'object-path'
+
+export function apolloUploadExpress ({
+  // Defaults to the OS temp directory
+  uploadDir
+}) {
+  // Ensure provided upload directory exists
+  if (uploadDir) mkdirp.sync(uploadDir)
+
+  return (request, response, next) => {
+    // Skip if there are no uploads
+    if (!request.is('multipart/form-data')) return next()
+
+    // Parse the multipart request
+    const form = formidable.IncomingForm({
+      uploadDir
+    })
+    form.parse(request, (error, fields, files) => {
+      if (error) return next(error)
+
+      // Decode the GraphQL variables
+      fields.variables = JSON.parse(fields.variables)
+
+      // File field names contain the original path to
+      // the File object in the GraphQL input variables.
+      // Relevent data for each uploaded file now gets
+      // placed back in the variables.
+      const variables = objectPath(fields.variables)
+      Object.keys(files).forEach(variablesPath => {
+        const {name, type, size, path} = files[variablesPath]
+        variables.set(variablesPath, {name, type, size, path})
+      })
+
+      // Apollo expects the fields in the request body
+      request.body = fields
+
+      // Request ready for Apollo middleware
+      next()
+    })
+  }
+}