Enum Error 

pub enum Error {
    ExecutionError(String),
    StateError(String),
    CheckpointError(String),
    ChannelError(String),
    RecursionLimitError {
        current: usize,
        limit: usize,
    },
    NodeNotFound(String),
    InvalidGraph(String),
    SerializationError(Error),
    Interrupt(String),
    InvalidUpdate(String),
    Other(String),
}

The main error type for LangGraph operations.

Variants

ExecutionError(String)

Error during graph execution

StateError(String)

Error during state operations

CheckpointError(String)

Error during checkpoint operations

ChannelError(String)

Error during channel operations

RecursionLimitError

Graph recursion limit exceeded

Fields

current: usize

limit: usize

NodeNotFound(String)

Node not found in graph

InvalidGraph(String)

Invalid graph configuration

SerializationError(Error)

Serialization/deserialization error

Interrupt(String)

Interrupt was triggered

InvalidUpdate(String)

Invalid update to state

Other(String)

Generic error with context

Implementations

impl Error

pub fn execution(msg: impl Into<String>) -> Self

Create a new execution error

pub fn state(msg: impl Into<String>) -> Self

Create a new state error

pub fn checkpoint(msg: impl Into<String>) -> Self

Create a new checkpoint error

pub fn channel(msg: impl Into<String>) -> Self

Create a new channel error

pub fn invalid_graph(msg: impl Into<String>) -> Self

Create a new invalid graph error

pub fn node_not_found(name: impl Into<String>) -> Self

Create a new node not found error

pub fn interrupt(msg: impl Into<String>) -> Self

Create an interrupt error

pub fn invalid_update(msg: impl Into<String>) -> Self

Create an invalid update error

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.