Struct Command 

pub struct Command {
    pub update: Option<HashMap<String, Value>>,
    pub goto: Option<Vec<String>>,
    pub resume: Option<Value>,
}

A command that can be returned from a node to control execution flow.

Commands provide a way for nodes to influence graph execution beyond just updating state. They can update state, change routing, or control interrupts.

Example

use rust_langgraph::types::Command;
use serde_json::json;

// Update state and go to specific nodes
let cmd = Command::new()
    .with_update("key", json!("value"))
    .with_goto(vec!["node1", "node2"]);

Fields

update: Option<HashMap<String, Value>>

State updates to apply

goto: Option<Vec<String>>

Specific nodes to route to (overrides normal routing)

resume: Option<Value>

Value to resume with after interrupt

Implementations

impl Command

pub fn new() -> Self

Create a new empty command

pub fn with_update(self, key: impl Into<String>, value: Value) -> Self

Add a state update

pub fn with_goto(self, nodes: Vec<impl Into<String>>) -> Self

Set the goto nodes

pub fn with_resume(self, value: Value) -> Self

Set the resume value

Trait Implementations

impl Clone for Command

fn clone(&self) -> Command

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Command

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Command

fn default() -> Command

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Command

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Command

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.