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feat(pb): configure total slots header for rivetkit from outbound req #3021

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feat(pb): configure total slots header for rivetkit from outbound req #3021

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21 changes: 18 additions & 3 deletions packages/core/pegboard-serverless/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ use universaldb::utils::IsolationLevel::*;
use vbare::OwnedVersionedData;

const X_RIVET_TOKEN: HeaderName = HeaderName::from_static("x-rivet-token");
const X_RIVETKIT_TOTAL_SLOTS: HeaderName = HeaderName::from_static("x-rivetkit-total-slots");

struct OutboundConnection {
handle: JoinHandle<()>,
Expand Down Expand Up @@ -158,6 +159,7 @@ async fn tick(
url.clone(),
headers.clone(),
Duration::from_secs(*request_lifespan as u64),
*slots_per_runner,
)
})
.take(start_count);
Expand All @@ -183,14 +185,23 @@ fn spawn_connection(
url: String,
headers: HashMap<String, String>,
request_lifespan: Duration,
slots_per_runner: u32,
) -> OutboundConnection {
let (shutdown_tx, shutdown_rx) = oneshot::channel::<()>();
let draining = Arc::new(AtomicBool::new(false));

let draining2 = draining.clone();
let handle = tokio::spawn(async move {
if let Err(err) =
outbound_handler(&ctx, url, headers, request_lifespan, shutdown_rx, draining2).await
if let Err(err) = outbound_handler(
&ctx,
url,
headers,
request_lifespan,
slots_per_runner,
shutdown_rx,
draining2,
)
.await
{
tracing::error!(?err, "outbound req failed");

Expand All @@ -217,6 +228,7 @@ async fn outbound_handler(
url: String,
headers: HashMap<String, String>,
request_lifespan: Duration,
slots_per_runner: u32,
shutdown_rx: oneshot::Receiver<()>,
draining: Arc<AtomicBool>,
) -> Result<()> {
Expand All @@ -232,7 +244,10 @@ async fn outbound_handler(
})
.collect();

let mut req = client.get(url).headers(headers);
let mut req = client
.get(url)
.headers(headers)
.header(X_RIVETKIT_TOTAL_SLOTS, slots_per_runner.to_string());

// Add admin token if configured
if let Some(auth) = &ctx.config().auth {
Expand Down
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