https://github.com/lance/telegram-demo
Knative and Camel-K app which translates Telegram messages via Google Translate API
https://github.com/lance/telegram-demo
Last synced: 11 months ago
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Knative and Camel-K app which translates Telegram messages via Google Translate API
- Host: GitHub
- URL: https://github.com/lance/telegram-demo
- Owner: lance
- Created: 2023-02-22T21:22:39.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-02-23T17:18:47.000Z (over 3 years ago)
- Last Synced: 2024-10-30T18:13:36.934Z (over 1 year ago)
- Language: JavaScript
- Size: 206 KB
- Stars: 2
- Watchers: 2
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Knative and Camel-K Telegram Translate Bot Example
This demo converts Telegram messages into English using Camel-K and Knative functions.
It uses a Camel-K Kamelet to periodically poll Telegram for messages.
The Kamelet converts each message into a CloudEvent, sending it to the default Knative
Broker. A `translate` function receives these events via a `Trigger` between the
`Broker` and the function which filters for these types of events.
The `translate` function uses the Google Translation API is used to convert the
message text to English, and the result is returned to the broker as `data` in a new
translation CloudEvent.
The broker has two additional triggers that respond to these translation events. One
forwards the event to a `viewer` function, which simply displays the event on the
console so that we can see if things are behaving as expected. The other trigger sends
the event to a `responder` function, which responds to the message in the Telegram
chat with the translation.
## Prerequisites
* A cluster with Knative installed
* CamelK https://camel.apache.org/camel-k/1.9.x/installation/installation.html installed
* Google Translation API key in `translate/service-account-file.json`
* Update the Telegram API key in [./resources/telegram-binding-v1.yaml](resources/telegram-binding-v1.yaml)
## Steps
* Ensure your Google Translation API key is correctly set in `translate/service-account-file.json`
* Create a Kubernetes secret containing your Telegram API key
```
kubectl create secret generic telegram --from-literal=API_KEY=
```
* Install a default Knative Broker
```
kn broker create default
```
* Deploy the functions
```
func deploy -p viewer
func deploy -p translate
func deploy -p responder
```
* Create the Telegram->Translate trigger
```
kn trigger create telegram-trigger -s translate --filter type=telegram.source
```
* Create the Translation->Viewer trigger
```
kn trigger create translate-trigger -s viewer --filter type=knative.function.translation
```
* Create the Translation->Responder trigger
```
kn trigger create responder-trigger -s responder --filter type=knative.function.translation
```
* Install the Kamelet
```
kubectl apply -f resources/telegram-binding-v1.yaml
```
* Send a Telegram message to your bot channel
* Check the logs
```
k logs -l app=viewer -f
k logs -l app=responder -f
k logs -l app=translate -f
```
* Cleanup
```
./resources/teardown.sh
```