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Chapter 91. Kamelet Main

Since Camel 3.11

A main class that is opinionated to boostrap and run Camel standalone with Kamelets (or plain YAML routes) for development and demo purposes.

91.1. Initial configuration
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The KameletMain is pre-configured with the following properties: 

camel.component.kamelet.location = classpath:/kamelets,github:apache:camel-kamelets/kamelets
camel.component.rest.consumerComponentName = platform-http
camel.component.rest.producerComponentName = vertx-http
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You can override these settings by updating the configuration in application.properties.

91.2. Automatic dependencies downloading
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The Kamelet Main can automatically download Kamelet YAML files from a remote location over http/https, and from github as well.

The official Kamelets from the Apache Camel Kamelet Catalog is stored on github and they can be used out of the box as-is.

For example a Camel route can be coded in YAML which uses the Earthquake Kamelet from the catalog, as shown below: 

- route:
    from: "kamelet:earthquake-source"
    steps:
      - unmarshal:
          json: {}
      - log: "Earthquake with magnitude ${body[properties][mag]} at ${body[properties][place]}"
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In the above example, the earthquake kamelet will be downloaded from github, and as well its required dependencies.

For more information, see Kamelet Main example

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