rs_openai 0.5.0

The OpenAI Rust library provides convenient access to the OpenAI API from Rust applications.
Documentation 
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//! Errors originating from API calls, parsing responses, and reading-or-writing to the file system.
use serde::Deserialize;

#[derive(Debug, thiserror::Error)]
pub enum OpenAIError {
    /// Underlying error from reqwest library after an API call was made
    #[error("http error: {0}")]
    Reqwest(#[from] reqwest::Error),
    /// OpenAI returns error object with details of API call failure
    // #[error("{}: {}", .0.r#type, .0.message)]
    #[error("{:?}", .0.error)]
    ApiError(ApiErrorResponse),
    /// Error when a response cannot be deserialized into a Rust type
    #[error("failed to deserialize api response: {0}")]
    JSONDeserialize(serde_json::Error),
    /// Error when trying to stream completions SSE
    #[error("stream failed: {0}")]
    StreamError(String),
    /// Error from client side validation
    /// or when builder fails to build request before making API call
    #[error("invalid args: {0}")]
    InvalidArgument(String),
}

#[derive(Debug, Deserialize)]
pub struct ApiErrorDetail {
    pub message: String,
    pub r#type: String,
    pub param: Option<serde_json::Value>,
    pub code: Option<serde_json::Value>,
}

/// OpenAI API returns error object on failure
#[derive(Debug, Deserialize)]
pub struct ApiErrorResponse {
    pub error: ApiErrorDetail,
}

pub type OpenAIResponse<T> = Result<T, OpenAIError>;