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Add staging environment identification headers #326

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Merged
aram356 merged 2 commits into from
Feb 19, 2026
Merged

Add staging environment identification headers #326

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89a9e79
Add X-TS-Version and X-TS-Env response headers for staging identifica…
aram356 Feb 18, 2026
1a78e61
Remove unnessary logging of Fastly service version in main request ha…
aram356 Feb 18, 2026
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8 changes: 8 additions & 0 deletions crates/common/src/constants.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,14 @@ pub const HEADER_X_REQUEST_ID: HeaderName = HeaderName::from_static("x-request-i
pub const HEADER_X_COMPRESS_HINT: HeaderName = HeaderName::from_static("x-compress-hint");
pub const HEADER_X_DEBUG_FASTLY_POP: HeaderName = HeaderName::from_static("x-debug-fastly-pop");

// Staging / version identification headers
pub const HEADER_X_TS_VERSION: HeaderName = HeaderName::from_static("x-ts-version");
pub const HEADER_X_TS_ENV: HeaderName = HeaderName::from_static("x-ts-env");

// Fastly environment variables
pub const ENV_FASTLY_SERVICE_VERSION: &str = "FASTLY_SERVICE_VERSION";
pub const ENV_FASTLY_IS_STAGING: &str = "FASTLY_IS_STAGING";

// Common standard header names used across modules
pub const HEADER_USER_AGENT: HeaderName = HeaderName::from_static("user-agent");
pub const HEADER_ACCEPT: HeaderName = HeaderName::from_static("accept");
Expand Down
15 changes: 10 additions & 5 deletions crates/fastly/src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,9 @@ use log_fastly::Logger;
use trusted_server_common::auction::endpoints::handle_auction;
use trusted_server_common::auction::{build_orchestrator, AuctionOrchestrator};
use trusted_server_common::auth::enforce_basic_auth;
use trusted_server_common::constants::{
ENV_FASTLY_IS_STAGING, ENV_FASTLY_SERVICE_VERSION, HEADER_X_TS_ENV, HEADER_X_TS_VERSION,
};
use trusted_server_common::error::TrustedServerError;
use trusted_server_common::integrations::IntegrationRegistry;
use trusted_server_common::proxy::{
Expand Down Expand Up @@ -61,11 +64,6 @@ async fn route_request(
integration_registry: &IntegrationRegistry,
req: Request,
) -> Result<Response, Error> {
log::info!(
"FASTLY_SERVICE_VERSION: {}",
::std::env::var("FASTLY_SERVICE_VERSION").unwrap_or_else(|_| String::new())
);

if let Some(response) = enforce_basic_auth(settings, &req) {
return Ok(response);
}
Expand Down Expand Up @@ -132,6 +130,13 @@ async fn route_request(
// Convert any errors to HTTP error responses
let mut response = result.unwrap_or_else(|e| to_error_response(&e));

if let Ok(v) = ::std::env::var(ENV_FASTLY_SERVICE_VERSION) {
response.set_header(HEADER_X_TS_VERSION, v);
}
if ::std::env::var(ENV_FASTLY_IS_STAGING).as_deref() == Ok("1") {
response.set_header(HEADER_X_TS_ENV, "staging");
}

for (key, value) in &settings.response_headers {
response.set_header(key, value);
}
Expand Down