mod

• Go Modules are the standard way to manage dependencies and versioning in Go projects

init

• Initialize a module.
• This creates a go.mod file in cwd

go mod init github.com/username/myproject

downloads

• Downloads the modules required by the project into the local go module cache ($GOPATH/pkg/mod)

go mod download

vendor

• Copy the dependencies from the local go module cache into the ./vendor directory

go mod vendor

tidy

• Remove unused dependencies
• This also performs other operations like adding the //indirect comment for implicit dependencies at go.mod

go mod tidy

why

• Explains why a particular dependency is added

go mod why

verify

• Checks that the dependencies in go.mod and go.sum are correct

go mod verify