I want to upload a file to google cloud storage with my phoenix application, i found some github project but i didn’t understand them very well, can any one help me to how doing that please !
I once attempted to use GCS for file uploading using elixir google api but I change a cloud provider since I needed a ecto integration and waffle and s3 integrates well.
As for your question please kindly read the README of elixir google api.
- Add
google_api_storageandgothto your dependencies - Get your google client id and secret
- export the client id and secret as shown below:
export GOOGLE_CLIENT_ID=[YOUR-OAUTH-CLIENT-ID]
export GOOGLE_CLIENT_SECRET=[YOUR-OAUTH-CLIENT-SECRET]
- Perform requests
# Obtain an access token using goth
{:ok, token} = Goth.Token.for_scope("https://www.googleapis.com/auth/cloud-platform")
conn = GoogleApi.Storage.V1.Connection.new(token.token)
# Call the Storage V1 API (for example) to list buckets
{:ok, response} = GoogleApi.Storage.V1.Api.Buckets.storage_buckets_list(conn, project_id)
# Print the response
Enum.each(response.items, &IO.puts(&1.id))
You can also checkout the example repo: https://github.com/GoogleCloudPlatform/elixir-samples/tree/master/storage
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Is the file generated by the server or by the user? If the file is uploaded by the user, I would not bother uploading the file to your server and then forwarding it to the GCS bucket. Instead, I would generate a signed URL on the server, send that to the browser and let the browser upload the file directly to the bucket.
I describe two variants for creating such a signed URL on gcs_signed_url. The two variants differ in whether your application is running on the Google cloud itself or not.
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yes that’s exactly my problem i couldn’t know how to “Get your google client id and secret” and also where i suppose write : “export GOOGLE_CLIENT_ID=[YOUR-OAUTH-CLIENT-ID]
export GOOGLE_CLIENT_SECRET=[YOUR-OAUTH-CLIENT-SECRET]”
Please kindly search on your own how to generate google client id and secrets, for starters
- you head over to API and services
- click on Credentials
- click on Create credentials and select OAuth client ID
As for these two
export GOOGLE_CLIENT_ID=[YOUR-OAUTH-CLIENT-ID]
export GOOGLE_CLIENT_SECRET=[YOUR-OAUTH-CLIENT-SECRET]
after you secure you client id and secret, open a new terminal on the current project directory and type those above.
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To be honest, I didn’t use OAuth2 for authentication instead I use Google service account. Do you really need to use OAuth2?
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for me any thing work will be fine, can you please tell me how you did that without OAuth.
Because i have a service account but i didn’t know how to use it and because i am begginer on that i suppose that i make some things wrong
Sure, do you have the service account json file already, if not please secure it first.
Then in your terminal just type:
export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service_account.json
Then try make a request again and see if it works.
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i did that at first i didn’t use export cmd because i am in windows:
after that i run my app and i got the same error:
I’m really not sure anymore I never encounter such error when I implement a file upload function to GCS. Have you inspect if there’s a token return from Goth.Token.for_scope. Could you also try using Goth.fetch/1 instead of for_scope.
Maybe you can try this last one, manually specify the service account json path inside config.ex. Currently I’m on a phone right now but you can Goth documentation.
ok i will search how to do that, thanks a lot i appreciate that
