github.com/Jeffail/benthos/v3@v3.65.0/website/docs/components/outputs/aws_kinesis_firehose.md

---
title: aws_kinesis_firehose
type: output
status: stable
categories: ["Services","AWS"]
---

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     THIS FILE IS AUTOGENERATED!

     To make changes please edit the contents of:
     lib/output/aws_kinesis_firehose.go
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import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';


Sends messages to a Kinesis Firehose delivery stream.

Introduced in version 3.36.0.


<Tabs defaultValue="common" values={[
  { label: 'Common', value: 'common', },
  { label: 'Advanced', value: 'advanced', },
]}>

<TabItem value="common">

```yaml
# Common config fields, showing default values
output:
  label: ""
  aws_kinesis_firehose:
    stream: ""
    max_in_flight: 1
    batching:
      count: 0
      byte_size: 0
      period: ""
      check: ""
    region: eu-west-1
```

</TabItem>
<TabItem value="advanced">

```yaml
# All config fields, showing default values
output:
  label: ""
  aws_kinesis_firehose:
    stream: ""
    max_in_flight: 1
    batching:
      count: 0
      byte_size: 0
      period: ""
      check: ""
      processors: []
    region: eu-west-1
    endpoint: ""
    credentials:
      profile: ""
      id: ""
      secret: ""
      token: ""
      role: ""
      role_external_id: ""
    max_retries: 0
    backoff:
      initial_interval: 1s
      max_interval: 5s
      max_elapsed_time: 30s
```

</TabItem>
</Tabs>

### Credentials

By default Benthos will use a shared credentials file when connecting to AWS
services. It's also possible to set them explicitly at the component level,
allowing you to transfer data across accounts. You can find out more
[in this document](/docs/guides/cloud/aws).

## Performance

This output benefits from sending multiple messages in flight in parallel for
improved performance. You can tune the max number of in flight messages with the
field `max_in_flight`.

This output benefits from sending messages as a batch for improved performance.
Batches can be formed at both the input and output level. You can find out more
[in this doc](/docs/configuration/batching).

## Fields

### `stream`

The stream to publish messages to.


Type: `string`  
Default: `""`  

### `max_in_flight`

The maximum number of messages to have in flight at a given time. Increase this to improve throughput.


Type: `int`  
Default: `1`  

### `batching`

Allows you to configure a [batching policy](/docs/configuration/batching).


Type: `object`  

```yaml
# Examples

batching:
  byte_size: 5000
  count: 0
  period: 1s

batching:
  count: 10
  period: 1s

batching:
  check: this.contains("END BATCH")
  count: 0
  period: 1m
```

### `batching.count`

A number of messages at which the batch should be flushed. If `0` disables count based batching.


Type: `int`  
Default: `0`  

### `batching.byte_size`

An amount of bytes at which the batch should be flushed. If `0` disables size based batching.


Type: `int`  
Default: `0`  

### `batching.period`

A period in which an incomplete batch should be flushed regardless of its size.


Type: `string`  
Default: `""`  

```yaml
# Examples

period: 1s

period: 1m

period: 500ms
```

### `batching.check`

A [Bloblang query](/docs/guides/bloblang/about/) that should return a boolean value indicating whether a message should end a batch.


Type: `string`  
Default: `""`  

```yaml
# Examples

check: this.type == "end_of_transaction"
```

### `batching.processors`

A list of [processors](/docs/components/processors/about) to apply to a batch as it is flushed. This allows you to aggregate and archive the batch however you see fit. Please note that all resulting messages are flushed as a single batch, therefore splitting the batch into smaller batches using these processors is a no-op.


Type: `array`  
Default: `[]`  

```yaml
# Examples

processors:
  - archive:
      format: lines

processors:
  - archive:
      format: json_array

processors:
  - merge_json: {}
```

### `region`

The AWS region to target.


Type: `string`  
Default: `"eu-west-1"`  

### `endpoint`

Allows you to specify a custom endpoint for the AWS API.


Type: `string`  
Default: `""`  

### `credentials`

Optional manual configuration of AWS credentials to use. More information can be found [in this document](/docs/guides/cloud/aws).


Type: `object`  

### `credentials.profile`

A profile from `~/.aws/credentials` to use.


Type: `string`  
Default: `""`  

### `credentials.id`

The ID of credentials to use.


Type: `string`  
Default: `""`  

### `credentials.secret`

The secret for the credentials being used.


Type: `string`  
Default: `""`  

### `credentials.token`

The token for the credentials being used, required when using short term credentials.


Type: `string`  
Default: `""`  

### `credentials.role`

A role ARN to assume.


Type: `string`  
Default: `""`  

### `credentials.role_external_id`

An external ID to provide when assuming a role.


Type: `string`  
Default: `""`  

### `max_retries`

The maximum number of retries before giving up on the request. If set to zero there is no discrete limit.


Type: `int`  
Default: `0`  

### `backoff`

Control time intervals between retry attempts.


Type: `object`  

### `backoff.initial_interval`

The initial period to wait between retry attempts.


Type: `string`  
Default: `"1s"`  

### `backoff.max_interval`

The maximum period to wait between retry attempts.


Type: `string`  
Default: `"5s"`  

### `backoff.max_elapsed_time`

The maximum period to wait before retry attempts are abandoned. If zero then no limit is used.


Type: `string`  
Default: `"30s"`