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perf(sdk): re-use Undici Agent across instances #143

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QuiiBz merged 2 commits into from
Apr 10, 2026
Merged

perf(sdk): re-use Undici Agent across instances #143

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perf(sdk): re-use Undici `Agent` across instances
QuiiBz Apr 10, 2026
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QuiiBz Apr 10, 2026
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5 changes: 5 additions & 0 deletions .changeset/cyan-worlds-work.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@vercel/sandbox": patch
---

Reuse Undici `Agent` across instances
8 changes: 5 additions & 3 deletions packages/vercel-sandbox/src/api-client/base-client.ts
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Expand Up @@ -13,6 +13,10 @@ export interface RequestParams extends RequestInit {
retry?: Partial<RetryOptions>;
}

const DEFAULT_AGENT = new Agent({
bodyTimeout: 0, // disable body timeout to allow long logs streaming
});

/**
* A base API client that provides a convenience wrapper for fetching where
* we can pass query parameters as an object, support retries, debugging
Expand All @@ -35,9 +39,7 @@ export class BaseClient {
this.baseUrl = params.baseUrl;
this.debug = params.debug ?? process.env.DEBUG_FETCH === "true";
this.token = params.token;
this.agent = new Agent({
bodyTimeout: 0, // disable body timeout to allow long logs streaming
});
this.agent = DEFAULT_AGENT;
}

protected async request(path: string, opts?: RequestParams) {
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