Struct LangfuseContext 

pub struct LangfuseContext { /* private fields */ }

Thread-safe storage for Langfuse context attributes.

This context allows you to set attributes that will be automatically included in all spans created within the same context.

Implementations

impl LangfuseContext

pub fn new() -> Self

Create a new empty context.

pub fn set_session_id(&self, session_id: impl Into<String>) -> &Self

Set the session ID for the current trace.

pub fn set_user_id(&self, user_id: impl Into<String>) -> &Self

Set the user ID for the current trace.

pub fn add_tags(&self, tags: Vec<String>) -> &Self

Add tags to the current trace.

Tags are stored as a JSON array string.

pub fn add_tag(&self, tag: impl Into<String>) -> &Self

Add a single tag.

pub fn set_metadata(&self, metadata: Value) -> &Self

Set metadata as JSON string.

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

Set a custom attribute.

pub fn set_trace_name(&self, name: impl Into<String>) -> &Self

Set the trace name.

pub fn clear(&self)

Clear all attributes.

pub fn get_attributes(&self) -> Vec<KeyValue>

Get all current attributes as key-value pairs.

pub fn has_attribute(&self, key: &str) -> bool

Check if a specific attribute is set.

pub fn get_attribute(&self, key: &str) -> Option<String>

Get a specific attribute value.

Trait Implementations

impl Clone for LangfuseContext

fn clone(&self) -> LangfuseContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for LangfuseContext

fn default() -> Self

Returns the “default value” for a type.