Managing dependencies

Context

Go modules are the standard dependency management system. Use go get to add a dependency, go mod tidy to clean up, and go mod vendor to vendor dependencies. The go.mod file records module paths and versions.

Example

Add a third‑party dependency and use it.

Code example

go mod init mymodule
go get github.com/google/uuid

package main

import (
    "fmt"
    "github.com/google/uuid"
)

func main() {
    id := uuid.New()
    fmt.Println(id)
}

Output (example)

550e8400-e29b-41d4-a716-446655440000

Useful links

• Managing dependencies (official)
• Go modules reference