Struct MessagesRequest

pub struct MessagesRequest {

    pub model: String,
    pub messages: Vec<Message>,
    pub max_tokens: u64,
    pub metadata: Option<Metadata>,
    pub stop_sequences: Option<Vec<String>>,
    pub stream: Option<bool>,
    pub system: Option<String>,
    pub temperature: Option<f64>,
    pub tool_choice: Option<ToolChoice>,
    pub tools: Option<Vec<Tool>>,
    pub top_k: Option<u32>,
    pub top_p: Option<f64>,
    pub credentials: Option<Credentials>,
}

Request to the Anthropic Messages API.

This struct represents a complete request to the Messages API, including all parameters that control generation behavior.

Fields

model: String

The model to use (e.g., “claude-3-7-sonnet-20250219”).

messages: Vec<Message>

The conversation messages.

max_tokens: u64

Maximum number of tokens to generate.

metadata: Option<Metadata>

Optional metadata.

stop_sequences: Option<Vec<String>>

Sequences where generation should stop.

stream: Option<bool>

Whether to stream the response.

system: Option<String>

System prompt to guide the assistant’s behavior.

temperature: Option<f64>

Sampling temperature (0.0 to 1.0).

tool_choice: Option<ToolChoice>

Tool choice specification.

tools: Option<Vec<Tool>>

Tools the assistant can use.

top_k: Option<u32>

Top-k sampling parameter.

top_p: Option<f64>

Top-p (nucleus) sampling parameter.

credentials: Option<Credentials>

Credentials for authentication (not serialized).

Trait Implementations

impl Clone for MessagesRequest

fn clone(&self) -> MessagesRequest

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MessagesRequest

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

Formats the value using the given formatter.

impl Serialize for MessagesRequest

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

where __S: Serializer,

Serialize this value into the given Serde serializer.