# Encore

URL: https://tailrace.dev/docs/integrations/encore

> OpenAI-compatible Encore middleware for raw proxy endpoints - scan chat bodies and SSE, return 422 on policy block.



Enforce data policy on OpenAI-compatible proxy endpoints in Encore.ts. Target **raw** endpoints so bodies and SSE are available.

## Quickstart [#quickstart]

```ts
import { createTailrace } from "@tailrace/core";
import { tailraceEncore } from "@tailrace/encore";
import { Service } from "encore.dev/service";

export default new Service("api", {
  middlewares: [
    tailraceEncore(createTailrace(), {
      agent: "api",
      workflowId: "default",
    }),
  ],
});
```

Peer: `encore.dev` `>=1.46`. Only `mode: "openai-compatible"` in v0.1. Use `api.raw` for streaming proxies.

## Boundaries covered [#boundaries-covered]

| Location                | Tailrace boundary                                   | Direction            |
| ----------------------- | --------------------------------------------------- | -------------------- |
| Chat request messages   | `{ kind: "model", provider }` (`model` field as-is) | Outbound to upstream |
| JSON chat completion    | same model boundary                                 | Inbound              |
| SSE `text/event-stream` | same; carry-buffer across chunks                    | Inbound              |

Block → **422** `{ error: { type: "policy_violation", entity, rule } }`. SSE: cancel upstream, emit one error `data:` event, close (abort-only; no `streamBlockBehavior` in v0.1).

## Guides [#guides]

* [Block secrets in an Encore service](/docs/guides/block-secrets-in-encore)
* [Boundaries](/docs/concepts/boundaries)

## Reference [#reference]

* [Encore package](/docs/reference/encore)
* [HTTP shared pipeline](/docs/reference/http)