Struct Message 

pub struct Message {
    pub id: MessageId,
    pub thread_id: ThreadId,
    pub execution_id: Option<ExecutionId>,
    pub parent_id: Option<MessageId>,
    pub parent_type: ParentType,
    pub role: MessageRole,
    pub content: String,
    pub parts: Vec<MessagePart>,
    pub created_at: DateTime<Utc>,
    pub updated_at: Option<DateTime<Utc>>,
    pub deleted_at: Option<DateTime<Utc>>,
    pub metadata: MessageMetadata,
}

A message in a thread (AI SDK compatible)

Fields

id: MessageId

Unique message identifier

thread_id: ThreadId

Thread this message belongs to

execution_id: Option<ExecutionId>

Link to execution (for assistant messages)

parent_id: Option<MessageId>

Parent message (for reply chains)

parent_type: ParentType

What triggered this message

role: MessageRole

Message role

content: String

Simple text content (for display)

parts: Vec<MessagePart>

Rich content parts (AI SDK format)

created_at: DateTime<Utc>

When created

updated_at: Option<DateTime<Utc>>

When last updated

deleted_at: Option<DateTime<Utc>>

Soft delete timestamp

metadata: MessageMetadata

Additional metadata

Implementations

impl Message

pub fn user(thread_id: ThreadId, content: impl Into<String>) -> Self

Create a new user message

pub fn assistant( thread_id: ThreadId, execution_id: ExecutionId, content: impl Into<String>, parent_id: Option<MessageId>, ) -> Self

Create a new assistant message

pub fn system(thread_id: ThreadId, content: impl Into<String>) -> Self

Create a new system message

pub fn is_deleted(&self) -> bool

Check if message is soft-deleted

pub fn with_parent(self, parent_id: MessageId, parent_type: ParentType) -> Self

Set the parent message

pub fn with_parts(self, parts: Vec<MessagePart>) -> Self

Add rich content parts

pub fn with_metadata(self, metadata: MessageMetadata) -> Self

Set metadata

Trait Implementations

impl Clone for Message

fn clone(&self) -> Message

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Message

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Message

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Message

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

where __S: Serializer,

Serialize this value into the given Serde serializer.