finance-rust

 1use std::time::Duration;
 2
 3use crate::Config;
 4
 5/// One shared reqwest client for all outbound data requests.
 6///
 7/// rustls negotiates HTTP/2 over ALPN, and gzip/brotli are decompressed
 8/// transparently. A reusable client is correct here: unlike a latency
 9/// probe, these calls are plain data fetches with no per-request handshake
10/// measurement to preserve.
11pub fn build_client(config: &Config) -> reqwest::Client {
12    reqwest::Client::builder()
13        .user_agent(config.user_agent.clone())
14        .timeout(Duration::from_secs(25))
15        // Yahoo's v10 `quoteSummary` endpoint is crumb-gated and the crumb
16        // round-trip requires session cookies — the GET to fc.yahoo.com sets
17        // one, which the subsequent /v1/test/getcrumb call must echo. With
18        // cookies enabled here, [`YahooProvider::ensure_crumb`] does the
19        // dance and the cookies replay automatically on later requests.
20        .cookie_store(true)
21        .build()
22        .expect("reqwest client builds")
23}
24
25/// A client for SEC EDGAR requests.
26///
27/// SEC's fair-access policy asks every consumer to identify itself, so the
28/// configured contact email is appended to the User-Agent on these requests
29/// only (the public market endpoints get the plain browser string from
30/// `build_client`). A `companyfacts` payload can run to several MB, so the
31/// timeout is more generous than the default client's.
32pub fn build_sec_client(config: &Config) -> reqwest::Client {
33    let user_agent = if config.sec_contact_email.is_empty() {
34        config.user_agent.clone()
35    } else {
36        format!("{} {}", config.user_agent, config.sec_contact_email)
37    };
38    reqwest::Client::builder()
39        .user_agent(user_agent)
40        .timeout(Duration::from_secs(40))
41        .build()
42        .expect("reqwest client builds")
43}