How to Use OAuth2 in Go

Use the GOAUTH environment variable to configure how the go command authenticates with private module proxies. Set GOAUTH to a command that outputs credentials for specific URLs, or use built-in methods like netrc or git. For example, to use Git credentials for a specific repository, run: export GOAUTH="git /path/to/git/repo"

GOAUTH tells the Go tool how to log in to private code repositories when downloading dependencies. It works like a keychain that automatically hands over your password when the Go command needs to fetch code from a secure server. You configure it once, and Go handles the rest without asking you for credentials every time.