OAuth-2.0-google-cloud-storage-api-over-NATS/

README

OAuth-2.0-google-cloud-storage-api-over-NATS

*** UNDER CONSTRUCTION - CHECK BACK SOON ***

Using OAuth 2.0 (frontend and backend via protobuf over NATS) to access a users google cloud storage (based on scopes) via googles api.

GitHub Webpage

REFRESH TOKEN

You only get refresh token once. So you must save it. User must revoke privileges here in order to get a new refresh token.

config := &oauth2.Config{
    ClientID:     cs.Web.ClientID,
    ClientSecret: cs.Web.ClientSecret,
    Endpoint: oauth2.Endpoint{
    TokenURL: "https://accounts.google.com/o/oauth2/token",
    },
}

restoredToken := &oauth2.Token{
    AccessToken:  token.AccessToken,
    RefreshToken: token.RefreshToken,
    Expiry:       token.Expiry,
    TokenType:    token.TokenType,
}

tokenSource := config.TokenSource(oauth2.NoContext, restoredToken)
client := oauth2.NewClient(oauth2.NoContext, tokenSource)
token, err = tokenSource.Token()

// Now use it in the api call
response, err "= client.Get("https://www.googleapis.com/storage/v1/b?project=PROJECT_NAME")

HIGH-LEVEL VIEW

This example expands on OAuth-2.0-google-cloud-storage-api and adds protobuf and NATS to pass auth code from front-end to back-end.

RUN

Boot up a NATS server such as,

gnatsd -DV -addr localhost --port 4222

Run both the frontend and backend processes,

cd frontend
go run client.go messages.pb.go

cd backend
go run server.go messages.pb.go

Then use by going to a browser,

http://127.0.0.1:3000