feat: add support for custom fetch headers in requests#84
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godronus
approved these changes
Jul 16, 2026
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Pull request overview
Adds support in the simple_fetch WASI HTTP example to optionally forward a caller-provided header to the upstream fetch request.
Changes:
- Build the upstream request via a mutable
Request::Builderand optionally add a header fromx-fetch-header. - Bump the
simple_fetchexample crate version to0.1.1.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| examples/http/wasi/simple_fetch/src/lib.rs | Adds parsing of x-fetch-header to inject a caller-provided header into the upstream request builder. |
| examples/http/wasi/simple_fetch/Cargo.toml | Bumps the example crate version to 0.1.1. |
Comment on lines
+31
to
+39
| if let Some(fetch_header) = request | ||
| .headers() | ||
| .get("x-fetch-header") | ||
| .and_then(|v| v.to_str().ok()) | ||
| { | ||
| if let Some((key, value)) = fetch_header.split_once(':') { | ||
| builder = builder.header(key.trim(), value.trim()); | ||
| } | ||
| } |
| [package] | ||
| name = "simple_fetch" | ||
| version = "0.1.0" | ||
| version = "0.1.1" |
qrdl
approved these changes
Jul 16, 2026
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