Awesome tool.
Do you guys have any plans to add Google application-default-credentials support?
Tks so much.

This is just what I need, a way of uploading images then compressing them with sharp, as most pictures taken from smartphones are ~5 MB each. Way too big. I am not a fan of Google Cloud Storage, though, I dug through the docs but didn't find anything. Is there a local storage option?

Currently, we used sharp v0.20+. We need to update the version but there are some deprecated, so it will impact our library. To see the changelog: http://sharp.pixelplumbing.com/en/stable/changelog/

multer-sharp-s3 non-image handler is available, how about the GCS?

cc @ikhsanalatsary

First of all, great job on this package!
Works great out the box.

Currently, it's only possible to enable or disable cropping.

Could we add these various sharp crop resizing options?
http://sharp.pixelplumbing.com/en/stable/api-resize/#crop

Thanks

TypeScript has quite a big community, it would be great to get TypeScript support as well. For reference: https://www.typescriptlang.org/docs/handbook/declaration-files/by-example.html

do you plan to include the upload of multiple (array) of images ?

Really great project! I was just testing it out, but I came across an issue when uploading withMetadata.

const storage = gcsSharp({
bucket: config.cloud_bucket,
projectId: config.projectID,
//keyFilename: 'YOUR_KEYFILENAME',
destination: 'Images',
acl: 'publicRead',
metadata: true,
sizes:[
{ suffix: 'xlg', width: 1200, height: 1200 },
{ suffix: 'lg', width: 800, height: 800 },
{ suffix: 'md', width: 500, height: 500 },
{ suffix: 'sm', width: 300, height: 300 },
{ suffix: 'xs', width: 100 }
],
withMetadata: true,
toFormat: 'jpeg',
max: true
});

/home/sharrington/dev/okistuff/node_modules/sharp/lib/output.js:120
if (is.defined(withMetadata.orientation)) {

TypeError: Cannot read property 'orientation' of null

Please let me know if there's anything I can do to assist.

Error: Input buffer contains unsupported image format

This module doesn't except credentials for authentication only keyfilename this can be fixed by adding

options.credentials = options.credentials || process.env.GCS_Credentials || null; on line 23

and
if(options.keyFilename != null){
try{
this.gcStorage = new Storage({
projectId: options.projectId,
credentials: options.keyFilename
});
}catch(error){
console.log(error);
}
}else if(options.credentials != null){
try{
this.gcStorage = new Storage({
projectId: options.projectId,
credentials: options.credentials
});
}catch(error){
console.log(error);
}
} or something similar to this starting on line 37

I ran into this issue trying to host an app on Heroku. Without this added if the user inputs google credentials (client_email, and private_key) and not the keyfilename the google-auth-library module looks to the environment to get GOOGLE_APPLICATION_CREDENTIALS and returns an error saying that the it was unable to load default credentials, pretty much ignoring the client email, and private_key credentials. I have had no luck trying to add my google auth json file as a config var to Heroku and found that this is an alternative solution.

Our library depends on Google storage too, so We need to update it but still wait until Typescript definition rollout. And some breaking change (you can check it in this release )

Some package needs to be updated due to vulnerability

I see @google-cloud/storage has some sort of mocking in place. Would work for this library?
https://github.com/googleapis/nodejs-storage/blob/e46f69eb82014f50586cd8525e3af7ca15490c29/samples/system-test/quickstart.test.js

It would be great to have a way of testing a function/API that uses multer-sharp but actually nothing gets uploaded and the tests are much faster