Question 1

How to build a multi-step conversation bot with Echotron?

Accepted Answer

Use the functional state machine pattern by defining a self-referential function type; the README provides an example where each state returns the next handler, enabling clean, allocation-free transitions without external dependencies.

Question 2

Echotron vs go-telegram-bot-api: which is better for production bots?

Accepted Answer

Echotron excels with built-in concurrency and rate limiting, making it ideal for stateful, high-load bots; go-telegram-bot-api is simpler but requires manual handling of these aspects, so choose based on your need for out-of-the-box robustness.

Question 3

How to set up webhooks with a custom HTTP server in Echotron?

Accepted Answer

Integrate by calling SetHTTPServer on the dispatcher with your existing server, then use ListenWebhook; the README shows an example with a custom mux without displacing routes, supporting gzip-compressed payloads transparently.

Question 4

Does Echotron support inline mode and handling callback queries?

Accepted Answer

Yes, it fully supports inline mode and callback queries; updates are routed based on type, and you can handle them in the Update method, as demonstrated in the callback query example with AnswerCallbackQuery.

Question 5

What are the default rate limits and how can I adjust them?

Accepted Answer

Defaults are 30 requests per second globally and 20 per minute per chat; adjust using SetGlobalRequestLimit and SetChatRequestLimit methods on the API instance, with intervals and burst parameters.

Question 6

How to handle errors and retries when the Telegram API fails?

Accepted Answer

API errors are typed as *APIError, allowing inspection of error codes and descriptions; for retries, the dispatcher's Poll method handles network errors by returning them, and you can implement retry logic in a loop with a sleep delay.

Question 7

Can I use Echotron with a local Bot API server for larger files?

Accepted Answer

Yes, use echotron.CustomAPI to point to your local server URL; all methods will route through it, enabling increased file size limits and upload throughput as per the README's local API server support section.

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