How to return a pdf download file instead of data ?

[rimiti]

Hi,

Sorry to put an issue but I don't have found a response to my answer.
Can you say me how I can return a file instead of data in a service method ?

I have tried to access on the express request method but it doesn't work... Do you know how I can make it ?

Version
feathers-rest: 1.2.3
node: 6.11.1
npm: 5.3.0

Server configuration

require('source-map-support').install() //For mapping errors from es5 to es6
import feathers from 'feathers'
import rest from 'feathers-rest'
import bodyParser from 'body-parser'
import services from './services'
import hooks from 'feathers-hooks'
import configuration from 'feathers-configuration'
import sequelize from './db'
import swaggerObject from '../api/2.0/swagger.json'
import jwtCheck from './middlewares/jwtCheckMiddleware'
import {handler} from './modules/errors/handler'
import uaparser from 'ua-parser-js'
import {default as logger, errorLog} from './lib/logger'
// import AWS from 'aws-sdk'
import validationErrorHandler from './middlewares/validationErrorHandler'
import compression from 'compression'
import packageJson from '../package.json'
import config from './config'
import environmentMiddleware from './middlewares/environmentMiddleware'
let initializeSwagger = require('swagger-tools').initializeMiddleware

sequelize.authenticate()
	.then(() => console.log('Connection has been established successfully.'))
	.catch((e) => console.error('Unable to connect to the database', {error: e}))


// Configure non-Swagger related middleware and server components prior to Swagger middleware
initializeSwagger(swaggerObject, (swaggerMiddleware) => {

	let app = feathers()
	app.use(bodyParser.json({limit: '5mb'}))
	app.use(environmentMiddleware)
	app.use(swaggerMiddleware.swaggerRouter({controllers: './dist/services'}))

	// Interpret Swagger resources and attach metadata to request - must be first in swagger-tools middleware chain
	app.use(swaggerMiddleware.swaggerMetadata())

	// Provide the security handlers
	app.use(swaggerMiddleware.swaggerSecurity({
		oauth2: (req, def, scopes, callback) => {
		}
	}))

	// Validate Swagger requests
	app.use(swaggerMiddleware.swaggerValidator({validateResponse: false}))

	// Return custom headers
	app.use((req, res, next) => {
		res.header("Access-Control-Allow-Origin", "*")
		res.header("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS")
		res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization, x-g8-device-name, x-g8-device-Uid, X-g8-masterkey, x-g8-environment, x-g8-device-uid, x-g8-refresh-token")
		res.header("x-powered-by", `g8 ${packageJson.version}`)
		next()
	})

	// Compress all requests
	app.use(compression())

	// Serve the Swagger documents and Swagger UI
	app.use(swaggerMiddleware.swaggerUi({swaggerUi: "/swagger"}))

	app.configure(rest())
		.use(jwtCheck)
		.use(services)
		.use((req, res, next) => {
			req.feathers.useragent = uaparser(req.headers['user-agent'])
			next()
		})
		.use((req, res, next) => {
			req.feathers.headers = req.headers
			next()
		})
		.configure(hooks())
		.configure(configuration(__dirname, 'config'))

	//intercept swagger validation tool errors
	app.use(validationErrorHandler)
	app.use(handler)
	app.listen(3000)

})

Invoice service

export default {
	/**
	 * @description Download user company order invoice
	 * @param data - passed data from request
	 * @param params - params send with the request
	 * @param callback
	 * @returns {Promise}
	 */
	create(data, params, callback){
		// how to return a pdf download file ?
	},
	setup(app, path){
		this.app = app
		//Bind the apps service method to service to always look services up dynamically
		this.service = app.service.bind(app)
		let h = (service) => {
			return (hook) => {
				if (hook.type === 'before') {
					console.time(`${hook.method}:${service}`)
				} else if (hook.type === 'after') {
					console.timeEnd(`${hook.method}:${service}`)
				}
			}
		}
		this.before({all: h('users/companies/orders/invoices/root')})
		this.after({all: h('users/companies/orders/invoices/root')})
	}
}

Thank you so much for you help.
Regards,