dvach_api 0.0.2

Методы для работы с API 'Двач'
Documentation 
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use super::structs::{
    CatalogResponse,
    CatalogThread,
    ThreadResponse,
    Thread,
};
use reqwest::header::COOKIE;
use std::result::Result;

/// Запрос к API
pub struct Fetch;
impl Fetch {

    // Содержимое Cookie для передачи Абуше
    const COOKIE_BODY: &'static str = "usercode_auth=1d1262ef030bfb23499773c8a3ab01cb";

    /// Получения списка всех тредов в разделе
    pub fn catalog(board: &str) -> Result<Vec<CatalogThread>, String> {
        let catalog_link = Links::catalog(&board, "json");
        let client = reqwest::Client::new();

        let response: CatalogResponse<CatalogThread> = client.get(&catalog_link)
            .header(COOKIE, Fetch::COOKIE_BODY)
            .send()
            .map_err(|err| {
                format!("Ошибка получения раздела {} ({})", &board, err)
            })?
            .json()
            .map_err(|err| {
                format!("Ошибка преобразования раздела {} ({})", &board, err)
            })?;

        Ok(response.threads.clone())
    }

    /// Получение списка постов в треде
    pub fn thread(board: &str, thread: &CatalogThread) -> Result<Thread, String> {
        let thread_link = Links::thread(&board, &thread.num, "json");
        let client = reqwest::Client::new();

        let response: ThreadResponse<Thread> = client.get(&thread_link)
            .header(COOKIE, Fetch::COOKIE_BODY)
            .send()
            .map_err(|err| {
                format!("Ошибка получения треда {} ({})", &thread.num, err)
            })?
            .json()
            .map_err(|err| {
                format!("Ошибка преобразования треда {} ({})", &thread.num, err)
            })?;

        Ok(response.threads[0].clone())
    }
}

/// Links. Just links. HTML or Json.
/// #TODO: Rewrite using builder pattern
pub struct Links;
#[allow(dead_code)]
impl Links {

    /// URL for catalog
    pub fn catalog(board: &str, format: &str) -> String {
        let url = format!("https://2ch.hk/{}/threads.{}", board, format);
        url
    }

    /// URL for board page
    pub fn board(board: &str, page: i32, format: &str) -> String {
        let page_id: String = match page {
            0 => "index".to_string(),
            _ => page.to_string(),
        };

        let url = format!("https://2ch.hk/{}/{}.{}", board, page_id, format);
        url
    }

    /// URL for thread
    pub fn thread(board: &str, thread_num: &str, format: &str) -> String {
        let url = format!("https://2ch.hk/{}/res/{}.{}", board, thread_num, format);
        url
    }
}