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Chapter 72. Slack Source


Receive messages from a Slack channel.

72.1. Configuration Options

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

Expand
PropertyNameDescriptionTypeDefaultExample

channel *

Channel

The Slack channel to receive messages from.

string

 

#myroom

token *

Token

The Bot User OAuth Access Token to access Slack. A Slack app that has the following permissions is required: channels:history, groups:history, im:history, mpim:history, channels:read, groups:read, im:read, and mpim:read.

string

  

delay

Delay

The delay between polls. If no unit provided, milliseconds is the default.

string

60000

60s or 6000 or 1m

naturalOrder

Natural Order

Create exchanges in natural order (oldest to newest) or not.

boolean

False

 

serverUrl

Server URL

The Slack API server endpoint URL.

string

https://slack.com

https://slack.com

* = Fields marked with an asterisk are mandatory.

72.2. Dependencies

72.2.1. Quarkus dependencies

<dependencies>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifact>camel-quarkus-gson</artifact>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifact>camel-quarkus-kamelet</artifact>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifact>camel-quarkus-slack</artifact>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.kamelets</groupId>
    <artifact>camel-kamelets-utils</artifact>
    <version>4.8.5</version>
  </dependency>
</dependencies>
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72.3. Usage

72.3.1. Camel JBang usage

72.3.1.1. Prerequisites for JBang

  • Install JBang.
  • You have executed the following command:

    jbang app install camel@apache/camel
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72.3.1.2. Running a route with JBang

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

- route:
    from:
      uri: "kamelet:timer-source"
      parameters:
        period: 10000
        message: 'test'
      steps:
        - to:
            uri: "kamelet:log-sink"
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You can now run it directly through the following command.

camel run route.yaml
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72.3.2. Knative Source

You can use the slack-source Kamelet as a Knative source by binding it to a Knative object.

slack-source-binding.yaml

apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: slack-source-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: slack-source
    properties:
      channel: "#myroom"
      token: "The Token"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
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72.3.3. Kafka Source

You can use the slack-source Kamelet as a Kafka source by binding it to a Kafka topic.

slack-source-binding.yaml

apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: slack-source-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: slack-source
    properties:
      channel: "#myroom"
      token: "The Token"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
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72.4. Kamelets source file

https://github.com/jboss-fuse/camel-kamelets/blob/camel-kamelets-4.10.3-branch/kamelets/slack-source.kamelet.yaml

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