docs/modules/ROOT/pages/telegram-source.adoc

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= image:kamelets/telegram-source.svg[] Telegram Source

*Provided by: "Apache Software Foundation"*

Receive all messages that people send to your Telegram bot.

To create a bot, contact the @botfather account using the Telegram app.

== Configuration Options

The following table summarizes the configuration options available for the `telegram-source` Kamelet:
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|===
| Property| Name| Description| Type| Default| Example
| *authorizationToken {empty}* *| Token| The token to access your bot on Telegram. You you can obtain it from the Telegram @botfather.| string| | 
|===

NOTE: Fields marked with ({empty}*) are mandatory.

== Usage

This section summarizes how the `telegram-source` can be used in various contexts.

=== Knative Source

The `telegram-source` Kamelet can be used as Knative source by binding it to a Knative object.

.telegram-source-binding.yaml
[source,yaml]
----
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: telegram-source-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: telegram-source
    properties:
      authorizationToken: "The Token"
  sink:
    ref:
      kind: InMemoryChannel
      apiVersion: messaging.knative.dev/v1
      name: mychannel

----

Make sure you have xref:latest@camel-k::installation/installation.adoc[Camel K installed] into the Kubernetes cluster you're connected to.

Save the `telegram-source-binding.yaml` file into your hard drive, then configure it according to your needs.

You can run the source using the following command:

[source,shell]
----
kubectl apply -f telegram-source-binding.yaml
----
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