worker/http/
header.rs

1use crate::Result;
2use http::{HeaderMap, HeaderName, HeaderValue};
3use js_sys::Array;
4
5pub(crate) fn header_map_from_web_sys_headers(
6    from_headers: web_sys::Headers,
7    to_headers: &mut HeaderMap,
8) -> Result<()> {
9    // Header.entries() doesn't error: https://developer.mozilla.org/en-US/docs/Web/API/Headers/entries
10    for res in from_headers.entries().into_iter() {
11        // The entries iterator.next() will always return a proper value: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
12        let a: Array = res?.into();
13        // The entries iterator always returns an array[2] of strings
14        let key = a.get(0).as_string().unwrap();
15        let value = a.get(1).as_string().unwrap();
16        to_headers.append(
17            HeaderName::from_bytes(key.as_bytes())?,
18            HeaderValue::from_str(&value)?,
19        );
20    }
21    Ok(())
22}
23
24pub(crate) fn web_sys_headers_from_header_map(headers: &HeaderMap) -> Result<web_sys::Headers> {
25    let output = web_sys::Headers::new()?;
26    for (key, value) in headers.iter() {
27        output.append(key.as_str(), std::str::from_utf8(value.as_bytes())?)?;
28    }
29    Ok(output)
30}
worker/http/header.rs

worker/http/
header.rs
