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()
}