How to upload file to Storage without login
 
In order to upload file to Storage without login google account, we have to implement policy document. After that, user can upload file to Storage from web page via Form directly.   There are 4 rough steps:   Service Account p12 file, it can be created at  GCP Console    Uploading object metadata, including   Bucket  Key  ACL  Expiration, for more information:  Policy Document   encryption  fill above info to Form, upload file      Step One:p12 file   After login GCP Console , you can generate p12 file via API Manager -> Credentials -> Create credentials                 Only Storage Admin assigned because we utilize Storage service only. If you need more permissions for other services, please refer available roles.   Please save your p12 file properly because there is only one chance to download the file.     Step Two:uploading object metadata   According to  Policy Document , JSON format is required for uploading object metadata. There are two major parts:...
