The following google cloud function properly uploads an image, but I would also like to compress the image as to avoid unnecessary charges due to large files being uploaded. Any suggestions would be greatly appreciated!!! the code is as follows:
exports.uploadImage = (req, res) => {
const BusBoy = require("busboy")
const path = require("path")
const os = require("os")
const fs = require("fs")
const busboy = new BusBoy({ headers: req.headers })
let imageToBeUploaded = {}
let imageFileName
busboy.on("file", (fieldname, file, filename, encoding, mimetype) => {
if (mimetype !== `image/jpeg` && mimetype !== `image/png`) {
return res.status(400).json({ error: `Not an acceptable file type` })
}
// my.image.png => ['my', 'image', 'png']
const imageExtension = filename.split(".")[filename.split(".").length - 1]
// 32756238461724837.png
imageFileName = `${Math.round(
Math.random() * 1000000000000
).toString()}.${imageExtension}`
const filepath = path.join(os.tmpdir(), imageFileName)
imageToBeUploaded = { filepath, mimetype }
file.pipe(fs.createWriteStream(filepath))
})
busboy.on("finish", () => {
admin
.storage()
.bucket(config.storageBucket)
.upload(imageToBeUploaded.filepath, {
resumable: false,
metadata: {
metadata: {
contentType: imageToBeUploaded.mimetype
}
}
})
.then(() => {
const imageUrl = `https://firebasestorage.googleapis.com/v0/b/${config.storageBucket}/o/${imageFileName}?alt=media`
return db.doc(`/users/${req.user.uid}`).update({ imageUrl })
})
.then(() => {
return res.json({ message: "image uploaded successfully" })
})
.catch(err => {
console.error(err)
return res.status(500).json({ error: "something went wrong" })
})
})
busboy.end(req.rawBody)
}
