# RequestHeaderConfiguration

Configuration for HTTP request headers that will be passed through to the runtime.

- Source: [`aws-bedrockagentcore/lib/runtime/types.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-bedrockagentcore/lib/runtime/types.ts#L99)
- Type last changed: v2.255.0 · 19 May 2026

## Example

```ts
const repository = new ecr.Repository(this, "TestRepository", {
  repositoryName: "test-agent-runtime",
});

const agentRuntimeArtifact = agentcore.AgentRuntimeArtifact.fromEcrRepository(repository, "v1.0.0");

new agentcore.Runtime(this, 'test-runtime', {
  runtimeName: 'test_runtime',
  agentRuntimeArtifact: agentRuntimeArtifact,
  requestHeaderConfiguration: {
    allowlistedHeaders: ['X-Amzn-Bedrock-AgentCore-Runtime-Custom-H1'],
  },
});
```

## Properties

- `allowlistedHeaders`: string[] — A list of HTTP request headers that are allowed to be passed through to the runtime.

  **Default:** No request headers allowed