graphql-upload-minimal implementation plugin for Fastify & mercurius.
Plugin made for Fastify v5:
yarn add mercurius-upload # or npm i mercurius-upload # or pnpm add mercurius-uploadPlugin options should conform to https://github.com/flash-oss/graphql-upload-minimal#type-processrequestoptions
fastify.register(require('mercurius-upload'), { // options passed to processRequest from graphql-upload-minimal // maxFileSize: 1024 * 1024 * 5, // maxFiles: 1, })or
import MercuriusGQLUpload from 'mercurius-upload' // ... fastify.register(MercuriusGQLUpload, { // options passed to processRequest from graphql-upload-minimal })const GQL = require('mercurius') const { GraphQLUpload } = require('graphql-upload-minimal') const fs = require('fs') const util = require('util') const stream = require('stream') const path = require('path') const pipeline = util.promisify(stream.pipeline) const uploadsDir = path.resolve(__dirname, '../uploads') const schema = /* GraphQL */ ` scalar Upload type Query { add(x: Int, y: Int): Int } type Mutation { uploadImage(image: Upload): Boolean } ` const resolvers = { Upload: GraphQLUpload, Query: { add: async (_, { x, y }) => { return x + y }, }, Mutation: { uploadImage: async (_, { image }) => { const { filename, createReadStream } = await image const rs = createReadStream() const ws = fs.createWriteStream(path.join(uploadsDir, filename)) await pipeline(rs, ws) return true }, }, } module.exports = function (fastify, options, done) { fastify.register(require('mercurius-upload')) fastify.register(GQL, { schema, resolvers, graphiql: true, }) done() }