Struct Context 

pub struct Context { /* private fields */ }

Context for tool and handler execution

Provides access to server functionality like progress tracking, logging, and request metadata.

Implementations

impl Context

pub fn new() -> Self

Create a new empty context

pub fn with_session_id(self, session_id: String) -> Self

Create a context with session ID

pub fn with_request_id(self, request_id: String) -> Self

Create a context with request ID

pub fn with_metadata(self, key: String, value: Value) -> Self

Add metadata to the context

pub fn with_logger_config(self, config: LoggerConfig) -> Self

Configure the logger for this context

pub fn with_notification_sender( self, sender: Arc<dyn Fn(JsonRpcMessage) -> Pin<Box<dyn Future<Output = MCPResult<()>> + Send>> + Send + Sync>, ) -> Self

Set the notification sender

pub fn with_cancellation_manager( self, manager: Arc<CancellationManager>, ) -> Self

Set the cancellation manager

pub fn session_id(&self) -> Option<&str>

Get the session ID

pub fn request_id(&self) -> Option<&str>

Get the request ID

pub fn get_metadata(&self, key: &str) -> Option<&Value>

Get metadata value

pub fn set_log_level(&mut self, level: LogLevel)

Set the minimum log level

pub fn get_log_level(&self) -> &LogLevel

Get the current minimum log level

pub async fn progress( &self, message: &str, progress: f64, total: Option<f64>, ) -> Result<(), Box<dyn Error + Send + Sync>>

Send a progress update

Arguments

• message - Progress message
• progress - Current progress value (0.0 to 1.0)
• total - Optional total value

pub async fn log_debug( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a debug message

pub async fn log_debug_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a debug message with structured data

pub async fn log_info( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an info message

pub async fn log_info_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an info message with structured data

pub async fn log_notice( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a notice message

pub async fn log_notice_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a notice message with structured data

pub async fn log_warn( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a warning message

pub async fn log_warn_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a warning message with structured data

pub async fn log_error( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an error message

pub async fn log_error_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an error message with structured data

pub async fn log_critical( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a critical message

pub async fn log_critical_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log a critical message with structured data

pub async fn log_alert( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an alert message

pub async fn log_alert_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an alert message with structured data

pub async fn log_emergency( &self, message: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an emergency message

pub async fn log_emergency_structured( &self, message: &str, data: Value, ) -> Result<(), Box<dyn Error + Send + Sync>>

Log an emergency message with structured data

pub async fn is_cancelled(&self) -> bool

Check if the current request has been cancelled

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Context

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

Formats the value using the given formatter.

impl Default for Context

fn default() -> Self

Returns the “default value” for a type.