为了好玩，我想尝试制作一个工具，让chatgpt来为Rust文件生成文档。我发现了一个问题，API允许的最大消息长度似乎是2048个字符。

OpenAI API 允许发送文件，所以我希望通过将文件发送到服务器，模型能够获得生成注释所需的上下文。

然而，我似乎无法做到这一点，我尝试了以下方法：

use std::fmt::Write;use std::fs;use std::io;use std::io::Read;use chatgpt::prelude::*;use clap::Parser;use syn;use syn::Item;use reqwest;#[derive(Parser, Debug)]#[command(author, version, about, long_about = None)]struct Args{    /// Path to the source code to document    #[arg(short, long)]    file_path: String,}fn main(){    let args = Args::parse();    let mut file = std::fs::File::open(args.file_path).unwrap();    let mut content = String::new();    file.read_to_string(&mut content).unwrap();    let ast = syn::parse_file(&content).unwrap();    let mut input_buffer = String::new();    // Getting the API key here    let key = "My key that I have replaced for obvious reasons";    {        // Create a reqwest client        let client = reqwest::blocking::Client::new();        // Make a POST request to the OpenAI API        let response = client            .post("https://api.openai.com/v1/files")            .header("Authorization", "Bearer My key that I have replaced for obvious reasons")            .header("Content-Type", "application/json")            .body(content.clone())            .send().unwrap();        // Check if the request was successful        if response.status().is_success() {            println!("File uploaded successfully!");        } else {            println!("Failed to upload file. Status code: {}", response.status());        }        std::mem::forget(client);        std::mem::forget(response);    }}

我得到的响应是：

Failed to upload file. Status code: 415 Unsupported Media Type

我不确定我做错了什么。我还尝试将内容类型更改为text/plain，但得到了相同的错误。

回答：

async-openai 包中有 Files，它允许你向OpenAI上传文件：

let client = Client::new();let request = CreateFileRequest {    input: "path/to/my/file.bin".into(),    purpose: "test".into(),};let response = client.files().create (request).await?;