Struct ChatResponse 

pub struct ChatResponse {
    pub id: String,
    pub object: String,
    pub created: u64,
    pub model: String,
    pub choices: Vec<Choice>,
    pub content: String,
    pub reasoning_content: Option<String>,
    pub usage: Option<Usage>,
    pub system_fingerprint: Option<String>,
}

Chat completion response

Fields

id: String

A unique identifier for the chat completion.

object: String

Object type (always “chat.completion”)

created: u64

Unix timestamp of creation

model: String

Model used for the completion

choices: Vec<Choice>

List of completion choices

content: String

Convenience field: first choice content Extracted from choices[0].message.content if present

reasoning_content: Option<String>

Reasoning content (for reasoning models like DeepSeek Reasoner) Extracted from choices[0].message.reasoning_content if present

usage: Option<Usage>

Usage statistics

system_fingerprint: Option<String>

System fingerprint

Implementations

impl ChatResponse

pub fn prompt_tokens(&self) -> u32

Convenience: prompt tokens or 0

pub fn completion_tokens(&self) -> u32

Convenience: completion tokens or 0

pub fn total_tokens(&self) -> u32

Convenience: total tokens or 0

pub fn get_usage_safe(&self) -> (u32, u32, u32)

Convenience: get usage safely as a tuple (prompt, completion, total)

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

Convenience: get first choice content as Option<&str> Returns None if the convenience content field is empty

pub fn populate_reasoning_synonyms(&mut self, raw: &Value)

Provider-agnostic post-processor: populate reasoning synonyms into messages

Trait Implementations

impl Clone for ChatResponse

fn clone(&self) -> ChatResponse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChatResponse

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

Formats the value using the given formatter.

impl Default for ChatResponse

fn default() -> ChatResponse

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ChatResponse

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ChatResponse

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

where __S: Serializer,

Serialize this value into the given Serde serializer.