# Go client for the Docker Engine API

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The `docker` command uses this package to communicate with the daemon. It can
also be used by your own Go applications to do anything the command-line
interface does; running containers, pulling or pushing images, etc.

For example, to list all containers (the equivalent of `docker ps --all`):

```go
package main

import (
	"context"
	"fmt"

	"github.com/moby/moby/client"
)

func main() {
	// Create a new client with "client.FromEnv" (configuring the client
	// from commonly used environment variables such as DOCKER_HOST and
	// DOCKER_API_VERSION) and set a custom User-Agent.
	//
	// API-version negotiation is enabled by default to allow downgrading
	// the API version when connecting with an older daemon version.
	apiClient, err := client.New(
		client.FromEnv,
		client.WithUserAgent("my-application/1.0.0"),
	)
	if err != nil {
		panic(err)
	}
	defer apiClient.Close()

	// List all containers (both stopped and running).
	result, err := apiClient.ContainerList(context.Background(), client.ContainerListOptions{
		All: true,
	})
	if err != nil {
		panic(err)
	}

	// Print each container's ID, status and the image it was created from.
	fmt.Printf("%s  %-22s  %s\n", "ID", "STATUS", "IMAGE")
	for _, ctr := range result.Items {
		fmt.Printf("%s  %-22s  %s\n", ctr.ID, ctr.Status, ctr.Image)
	}
}
```

Full documentation is available on [pkg.go.dev](https://pkg.go.dev/github.com/moby/moby/client).
