> ## Documentation Index
> Fetch the complete documentation index at: https://braintrust.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# TypeScript SDK eval process hangs after completion

export const plans_0 = "Starter, Pro, Enterprise"

export const deployments_0 = "Braintrust-hosted, Self-hosted"

export const data_plane_version_0 = undefined

export const use_case_0 = "Use case - Running evals with TypeScript SDK v1.0.0+ using direct Azure OpenAI or other external LLM endpoints"

<Note>
  **Applies to:**

  * Plan - {plans_0}
  * Deployment - {deployments_0}
  * {data_plane_version_0}
  * {use_case_0}
</Note>

## Summary

**Issue:** TypeScript SDK eval completes successfully and prints results, but the Node.js process hangs indefinitely instead of exiting (CPU shows 99.3% idle).

**Cause:** SDK versions 1.0.0+ have a resource leak in `HTTPBackgroundLogger` that leaves open handles preventing process exit (regression introduced in commit 369ce701).

**Resolution:** Downgrade to SDK v0.4.9, force process exit after eval completion, or switch to Braintrust AI Proxy endpoints.

## Resolution Steps

## Option 1: Use Braintrust AI Proxy (Recommended)

#### Step 1: Configure AI Proxy endpoints

Switch from direct Azure OpenAI endpoints to Braintrust AI Proxy (eliminates hang but requires proxy setup).\@.

Option 2: Downgrade SDK

Step 1: Install SDK v0.4.9

Downgrade to the last working version.

```text theme={"theme":{"light":"github-light","dark":"github-dark-dimmed"}}
npm install braintrust@0.4.9

```

#### Step 2: Verify eval exits cleanly

Run your eval and confirm the process terminates after completion.

### Option 2: Force Process Exit

### Step 1: Add explicit exit after eval

Force Node.js to exit after eval completes.

```text theme={"theme":{"light":"github-light","dark":"github-dark-dimmed"}}
await Eval("my-eval", {
  data: () => dataset,
  task: async (input) => { /* your task */ },
  scores: [/* your scores */],
});

// Force exit after eval completes
process.exit(0);

```

#### Step 2: Run with --no-send-logs flag

Disable telemetry to reduce open handles.

```text theme={"theme":{"light":"github-light","dark":"github-dark-dimmed"}}
bt eval --no-send-logs

```