Alertmanager configuration for Telegram

[jjdiazgarcia]

Hello everybody,

I am trying to send alerts to Telegram from Alertmanager but I am getting below error:

ts=2022-09-26T10:40:11.512Z caller=notify.go:732 level=warn component=dispatcher receiver=telegram integration=telegram[0] msg="Notify attemp failed, will retry later" attempts=1 err="telebot: invalid character '<' looking for beginning of value"

I have configured alertmanager as official doc says but I am not able to get alerts from my telegram bot.

This is the configuration of alertmanager.

receivers:

- name: telegram

  telegram_configs:

  - api_url: <private_bot_url>

    bot_token: <private_token>

    chat_id: <private_chat_id>

    message: Test telegram receiver

    send_resolved: True

I am using my custom bot. I am not using the official telegram api url with webhook configuration. I have a python script that sends to telegram the same message that is sent to it.

Does anyone know what could be the problem?

Thanks in advance.

[Julius Volz]

Since you are using your custom code, it's hard to say what exactly is happening, but the error message you posted is a common one in case a JSON parser tries to decode something that looks more like XML or HTML (it's complaining about the body starting with a "<" rather than something that looks like valid JSON). Maybe you mixed up JSON and XML/HTML somewhere?

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Julius Volz

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