How to create your own bot for vk "FAQ"?

Question

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How to create a program - a bot for VK (dialogue with the community) so that the bot can answer the FAQ, but the bottom line is that the audience of the community is 7.8k people. What you need to create a bot and make it respond to a large number of people at the same time. Servers ... As you probably understood ... I'm a complete dummy in this)

Answer 1

Optimization only:

1. minimize the number of VK API calls. For Reply 1, the user needs to a) mark the incoming message as read and b) send a reply. That's 2 API calls. Up to 25 API calls can be packed into a single execute() - this will answer 12 users for 1 execute() call and with a limit of 3 calls per second - 36 users per second.
   With such an organization, one weak server will be enough for you and you can approach the theoretical limit of 36 messages per second.

Answer 2

There is a ready-made bot constructor - robochat.io .
Mass mailing, filters, responses to commands. Everything you need in general :)

Answer 3

Well, I think you need 10 servers. So that each bot has and monitors chats)