= pulsar
:type: output
:status: experimental
:categories: ["Services"]



////
     THIS FILE IS AUTOGENERATED!

     To make changes, edit the corresponding source file under:

     https://github.com/redpanda-data/connect/tree/main/internal/impl/<provider>.

     And:

     https://github.com/redpanda-data/connect/tree/main/cmd/tools/docs_gen/templates/plugin.adoc.tmpl
////

// © 2024 Redpanda Data Inc.


component_type_dropdown::[]


Write messages to an Apache Pulsar server.

Introduced in version 3.43.0.


[tabs]
======
Common::
+
--

```yml
# Common config fields, showing default values
output:
  label: ""
  pulsar:
    url: pulsar://localhost:6650 # No default (required)
    topic: "" # No default (required)
    tls:
      root_cas_file: ""
    key: ""
    ordering_key: ""
    max_in_flight: 64
```

--
Advanced::
+
--

```yml
# All config fields, showing default values
output:
  label: ""
  pulsar:
    url: pulsar://localhost:6650 # No default (required)
    topic: "" # No default (required)
    tls:
      root_cas_file: ""
    key: ""
    ordering_key: ""
    max_in_flight: 64
    auth:
      oauth2:
        enabled: false
        audience: ""
        issuer_url: ""
        scope: ""
        private_key_file: ""
      token:
        enabled: false
        token: ""
```

--
======

== Fields

=== `url`

A URL to connect to.


*Type*: `string`


```yml
# Examples

url: pulsar://localhost:6650

url: pulsar://pulsar.us-west.example.com:6650

url: pulsar+ssl://pulsar.us-west.example.com:6651
```

=== `topic`

The topic to publish to.


*Type*: `string`


=== `tls`

Specify the path to a custom CA certificate to trust broker TLS service.


*Type*: `object`


=== `tls.root_cas_file`

An optional path of a root certificate authority file to use. This is a file, often with a .pem extension, containing a certificate chain from the parent trusted root certificate, to possible intermediate signing certificates, to the host certificate.


*Type*: `string`

*Default*: `""`

```yml
# Examples

root_cas_file: ./root_cas.pem
```

=== `key`

The key to publish messages with.
This field supports xref:configuration:interpolation.adoc#bloblang-queries[interpolation functions].


*Type*: `string`

*Default*: `""`

=== `ordering_key`

The ordering key to publish messages with.
This field supports xref:configuration:interpolation.adoc#bloblang-queries[interpolation functions].


*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*: `64`

=== `auth`

Optional configuration of Pulsar authentication methods.


*Type*: `object`

Requires version 3.60.0 or newer

=== `auth.oauth2`

Parameters for Pulsar OAuth2 authentication.


*Type*: `object`


=== `auth.oauth2.enabled`

Whether OAuth2 is enabled.


*Type*: `bool`

*Default*: `false`

=== `auth.oauth2.audience`

OAuth2 audience.


*Type*: `string`

*Default*: `""`

=== `auth.oauth2.issuer_url`

OAuth2 issuer URL.


*Type*: `string`

*Default*: `""`

=== `auth.oauth2.scope`

OAuth2 scope to request.


*Type*: `string`

*Default*: `""`

=== `auth.oauth2.private_key_file`

The path to a file containing a private key.


*Type*: `string`

*Default*: `""`

=== `auth.token`

Parameters for Pulsar Token authentication.


*Type*: `object`


=== `auth.token.enabled`

Whether Token Auth is enabled.


*Type*: `bool`

*Default*: `false`

=== `auth.token.token`

Actual base64 encoded token.


*Type*: `string`

*Default*: `""`