go-mod

Initialize new module

$ go mod init [module-name]

$ go mod download

$ go mod tidy

$ go mod vendor

$ go mod verify

go mod command [arguments]

go mod manages Go modules, the official dependency management system for Go. Modules are collections of packages with versioned dependencies defined in go.mod files.
The command initializes modules, manages dependencies, and maintains reproducible builds. It integrates with module proxies and checksum databases to ensure package integrity and availability.

init NAME

Initialize new module.

Download modules to cache.

Add missing, remove unused.

Create vendor directory.

Verify dependencies.

Print dependency graph.

Explain why needed.

Display help information.

go.mod

Module definition file containing module path, Go version, and dependency requirements.

Checksums of module dependencies for verification.

Environment variable to skip checksum verification for specific modules.

Default flags applied to go commands, including go mod subcommands.

Requires Go 1.11+. go.sum should be committed. Vendor mode for offline builds.

Go modules were introduced in Go 1.11 as the official dependency management solution, replacing GOPATH-based workflows.

go(1), go-get(1)