mukan-ignite/docs/versioned_docs/version-v29/07-packages/chaincmd.md

sidebar_position	title	slug
7	Chain Command Builder (chaincmd)	/packages/chaincmd

Chain Command Builder (chaincmd)

The chaincmd package builds step.Option command definitions for Cosmos SDK daemon binaries (simd, gaiad, and others). It does not execute commands directly.

For full API details, see the chaincmd Go package documentation.

When to use

• Build consistent daemon command lines from typed options.
• Reuse command composition across services and tests.
• Keep chain binary-specific flags centralized.

Key APIs

• New(appCmd string, options ...Option) ChainCmd
• WithHome(home string) Option
• WithChainID(chainID string) Option
• InitCommand(moniker string, options ...string) step.Option
• BankSendCommand(fromAddress, toAddress, amount string, options ...BankSendOption) step.Option

Example

package main

import (
	"fmt"

	"github.com/ignite/cli/v29/ignite/pkg/chaincmd"
	"github.com/ignite/cli/v29/ignite/pkg/cmdrunner/step"
)

func main() {
	cmd := chaincmd.New(
		"simd",
		chaincmd.WithHome("./.simapp"),
		chaincmd.WithChainID("demo-1"),
	)

	initStep := step.New(cmd.InitCommand("validator"))
	fmt.Println(initStep.Exec.Command)
	fmt.Println(initStep.Exec.Args)
}