Meteor slingshot file upload to Google Cloud Storage internal server error - meteor

Question

I am trying to upload files using edgee:slingshot, but I have several errors. I have did everything as described in github page. This is my settings on server:
Slingshot.GoogleCloud.directiveDefault.GoogleSecretKey = Assets.getText('google-cloud-service-key.pem');
Slingshot.createDirective("myFileUploads", Slingshot.GoogleCloud, {
bucket: 'dossum-app',
GoogleAccessId: "GOOGXXXX",
GoogleSecretKey: "qZEsLZ/NiXXXXXXXXXXXXUW8NVjSvRb8SgdxXXXXX2",
acl: 'bucket-owner-full-control',
authorize: function() {
if (!this.userId) {
var message = 'Please login before posting file';
throw new Meteor.Error('Login Required', message);
}
return true;
},
key: function(file) {
var user = Meteor.users.findOne(this.userId);
return user.username + '/' + file.name;
}
});
And this is cors.json:
[{"origin": ["http://localhost:3000", "http://qnekt.zehinz.com"], "responseHeader": ["Origin", "Accept", "X-Requested-With", "Authorization", "Content-Type", "Content-Length", "Accept-Encoding", "X-CSRF-Token"], "method": ["GET", "HEAD", "DELETE", "PUT", "POST", "HEAD"], "maxAgeSeconds": 3600}]
If I run with above configuration I get this error without any details: {error: 500, reason: "Internal server error"....
I have tried to comment this line: //GoogleSecretKey:"qZEsLZ/NiEkXo641XHIUW8NVjSvRb8SgdxIyYcV2"
This time I receive this error:
{error: "Forbidden - 403", reason: "Failed to upload file to cloud storage", details: undefined ...
Can anyone please guide me?
Where should I get GoogleAccessId if I am using .pem file instead of GoogleSecretKey?
What should be the cors.json file for file uploading and public reading?

Answer 1

I had troubles with edgee:slingshot and Google Cloud Storage. But this settings now work for me:
//server
Slingshot.GoogleCloud.directiveDefault.GoogleSecretKey = Assets.getText('google-cloud-service-key.pem');
Slingshot.createDirective('avatarUploader', Slingshot.GoogleCloud, {
bucket: 'my_bucket',
GoogleAccessId: 'xxxxxxxxxxxxxx#developer.gserviceaccount.com',
acl: 'public-read',
authorize: function() {
if (!this.userId) {
var message = 'Please login before posting file';
throw new Meteor.Error('Login Required', message);
}
return true;
},
key: function(file) {
var user = Meteor.users.findOne(this.userId);
var ext = file.type.split('/')[1];
return user.username + '/' + randomString(20) + '.' + ext;
}
});
//CORS settings
[
{
"origin": ["*"],
"responseHeader": ["*"],
"method": ["GET", "POST", "PUT", "HEAD"],
"maxAgeSeconds": 3000
}
]
For details look here.