ruststream 0.7.5

Async messaging framework for Rust: broker-agnostic traits, router, codecs, and a conformance harness for broker authors.
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---
sidebar_position: 11
title: batches_raw
description: "batches_raw() returns the bytes a batch handler received, one list per call."
---

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

# batches_raw

[`batches_raw()`](api:ruststream::testing::SubscriberAssertions::batches_raw) returns the bytes a batch handler received, one list per call.

It is [`received_raw`](./received-raw.md) with the batch boundaries kept.
A single-message handler yields lists of one.
Here the handler takes raw frames, `&[Frame<'_>]`, so no codec runs on the way in or in the check.
The batches come from a replayed log, as on the [`batches`](./batches.md) page.
A batch built from a bare publisher is driven with [`settle`](../driving/settle.md).

## Example

<Tabs groupId="api">
<TabItem value="macros" label="Macros">

```rust reference="examples/testing_subscriber_payloads.rs#batches_raw"
```

</TabItem>
<TabItem value="manual" label="Manual">

```rust reference="examples/manual/testing_subscriber_payloads.rs#batches_raw"
```

</TabItem>
</Tabs>