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add: remove_http_request_header convenient func #256

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@itsLucario itsLucario commented Aug 28, 2024

This is a convenient method to remove request header by key than using set_http_request_header with empty value. Since we already have the things in place, it's just about exposing it for usage with HttpContext.

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}
}
}

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Style: Could you move it above, so that it's not in-between set_map_value and set_map_value_bytes?

Ideally, could you group it with the extern C prototype, so that it's:

extern "C" {
    fn proxy_remove_header_map_value(
    [...]
}

pub fn remove_map_value(map_type: MapType, key: &str) -> Result<(), Status> {
[...]

extern "C" {
    fn proxy_replace_header_map_value(
    [...]
}

pub fn set_map_value(map_type: MapType, key: &str, value: Option<&str>) -> Result<(), Status> {
[...]

to match the existing style in this file?

@@ -351,6 +351,10 @@ pub trait HttpContext: Context {
hostcalls::add_map_value_bytes(MapType::HttpRequestHeaders, name, value).unwrap()
}

fn remove_http_request_header(&self, name: &str) {
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Could you add those for request trailer, response header and response trailer as well? Thanks!

Signed-off-by: Nandan B N <[email protected]>
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