[GH-ISSUE #1542] TelegramBotHandler throws when Telegram API returns "message is too long" error #660

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opened 2026-03-04 02:16:46 +03:00 by kerem · 2 comments

kerem commented

2026-03-04 02:16:46 +03:00

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Originally created by @sergiks on GitHub (Mar 17, 2021).
Original GitHub issue: https://github.com/Seldaek/monolog/issues/1542

Monolog version 2.0.0

Telegram Bot API sendMessage() method has a message length limit of "4096 characters after entities parsing"

Added logging to my Telegram bot. Since stack trace might get long, Telegram API returns an error which is thrown unhandled by TelegramBotHandler:

Fatal error: Uncaught RuntimeException: Telegram API error.
Description: Bad Request: message is too long 
in /var/www/prod/lumen/vendor/monolog/monolog/src/Monolog/Handler/TelegramBotHandler.php:96

Solution options:

trim message length to 4096
split long message into multiple messages
attach long messages as a text file attachment to a message
strip stack trace from message

Originally created by @sergiks on GitHub (Mar 17, 2021). Original GitHub issue: https://github.com/Seldaek/monolog/issues/1542 Monolog version 2.0.0 Telegram Bot API [sendMessage()][1] method has a message length limit of "4096 characters after entities parsing" Added logging to my Telegram bot. Since stack trace might get long, Telegram API returns an error which is thrown unhandled by TelegramBotHandler: Fatal error: Uncaught RuntimeException: Telegram API error. Description: Bad Request: message is too long in /var/www/prod/lumen/vendor/monolog/monolog/src/Monolog/Handler/TelegramBotHandler.php:96 Solution options: * trim message length to 4096 * split long message into multiple messages * attach long messages as a text file attachment to a message * strip stack trace from message [1]: https://core.telegram.org/bots/api#sendmessage

kerem

2026-03-04 02:16:46 +03:00

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kerem commented

2026-03-04 02:16:48 +03:00

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@alexandrmazur96 commented on GitHub (Mar 30, 2021):

Hi!

I have introduced PR some time ago. Before (and if!) it will be merged you can alternatively handle this by yourself:

Create a new TelegramBotHandler class in your project and extend it from Monolog\TelegramBotHandler, then override proper methods in your class (you can use code from my PR).

@alexandrmazur96 commented on GitHub (Mar 30, 2021): Hi! I have introduced PR some time ago. Before (**and if!**) it will be merged you can alternatively handle this by yourself: Create a new `TelegramBotHandler` class in your project and extend it from `Monolog\TelegramBotHandler`, then override proper methods in your class (you can use code from my PR).

kerem commented

2026-03-04 02:16:48 +03:00

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@Seldaek commented on GitHub (Mar 13, 2022):

Fixed by #1616

@Seldaek commented on GitHub (Mar 13, 2022): Fixed by #1616

kerem referenced this issue

2026-03-04 03:08:23 +03:00

[PR #660] [CLOSED] Fix RavenHandlerTest to work with upstream changes #1282