Google Pubsub Source

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Stable"

Consume messages from Google Cloud Pub/Sub.

If you specify the serviceAccountKey property, you must base64 encode it before you pass it as a parameter.

Configuration Options

The following table summarizes the configuration options available for the google-pubsub-source Kamelet:

Property	Name	Description	Type	Default
projectId	Project Id	Required The Google Cloud Pub/Sub Project ID.	string
subscriptionName	Subscription Name	Required The subscription name.	string
concurrentConsumers	Concurrent Consumers	The number of parallel streams to consume from the subscription.	integer	1
maxMessagesPerPoll	Max Messages Per Poll	The maximum number of messages to receive from the server in a single API call.	integer	1
serviceAccountKey	Service Account Key	The service account key to use as credentials for the Pub/Sub publisher/subscriber. You must encode this value in base64.	binary
synchronousPull	Synchronous Pull	Specifies to synchronously pull batches of messages.	boolean	false

Property

Name

Description

Type

Default

Example

projectId

Project Id

Required The Google Cloud Pub/Sub Project ID.

string

subscriptionName

Subscription Name

Required The subscription name.

string

concurrentConsumers

Concurrent Consumers

The number of parallel streams to consume from the subscription.

integer

maxMessagesPerPoll

Max Messages Per Poll

The maximum number of messages to receive from the server in a single API call.

integer

serviceAccountKey

Service Account Key

The service account key to use as credentials for the Pub/Sub publisher/subscriber. You must encode this value in base64.

binary

synchronousPull

Synchronous Pull

Specifies to synchronously pull batches of messages.

boolean

false

Dependencies

At runtime, the google-pubsub-source Kamelet relies upon the presence of the following dependencies:

camel:kamelet
camel:google-pubsub
camel:jackson

Camel JBang usage

Prerequisites

You’ve installed JBang.
You have executed the following command:

jbang app install camel@apache/camel

Supposing you have a file named route.yaml with this content:

- route:
    from:
      uri: "kamelet:google-pubsub-source"
      parameters:
        .
        .
        .
      steps:
        - to:
            uri: "kamelet:log-sink"

You can now run it directly through the following command

camel run route.yaml

Kamelet source file

https://github.com/apache/camel-kamelets/blob/main/kamelets/google-pubsub-source.kamelet.yaml