The NEST Prize Bot is a tool for the activity of the NEST community.

Related tags

Learning resource telegram-bot erc20
Overview

NEST Prize Bot

The NEST Prize Bot is a tool developed by our team for the activity of the NEST community. It can record the receipt of Prize and export them.

This repository contains:

  1. The bot main program
  2. The contract interface used by the bot
  3. Get the function source code of the condition interface

Table of Contents

Background

Our development team has developed countless telegram bots for rewarding active users, which is a very exhausting job. Therefore, we decided to develop a general-purpose bot that can help members of the NEST community to distribute and receive NEST red packets in Telegram groups.

The goals for this repository are:

  1. Record the receipt of NEST Prize
  2. Export all the receipt data
  3. Reduce the cost of reward distribution and reduce transaction errors
  4. Anti cheating

Install

This project uses a serverless architecture design, so you need to be familiar with AWS related services, including: Lambda, DynamoDB, IAM, CloudWatch, etc.

$ npm install

Usage

You need to replace some configuration in the source code, including:

  1. Create a new Telegram bot account and configure its token in Lambda's environment variables
  2. Modify the whitelist of administrators in the original code, WHITELIST
  3. Need to create a DynamoDB database

DynamoDB Design

Table: nest-prize

Attribute Name Type Description
chat_id Number pk of table
message_id Number sk of table
status String pk of GSI(status-index)

Table: nest-prize-users

Attribute Name Type Description
user_id Number pk
wallet Number pk of GSI(wallet-index)

Example Bot

NEST Prize Bot

Related Efforts

Maintainers

@tunogya.

Contributing

Feel free to dive in! Open an issue or submit PRs.

Contributors

This project exists thanks to all the people who contribute.

@kitty-tin

License

MIT © NEST Protocol

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Comments
  • ctx.session storage intent is delayed

    ctx.session storage intent is delayed

    Now, we use bot.use(session()) to store the intent of user's input.

    We found that there was a long delay in updating and reading data during a spike in usage.

    We plan to write the changes to our database. Wish us good luck.

    opened by tunogya 1
  • Repeated Liquidate BUG

    Repeated Liquidate BUG

    We found a big bug in the recent use process. Clicking the liquidation button once will lead to the issuance of more Prize. At present, the analysis results and preliminary solutions have been obtained.

    Reproduction process:

    1. DynamoDB uses a pre-made billing model, 1-10. If the AWS performance scheduling is not timely, the request will fail.
    2. Since DynamoDB does not have a batch update function, a for loop is set in the program to update the red envelopes. Multiple write requests will be generated in a short period of time.
    3. Due to the above reasons, the write request will fail, and if the robot fails, it will be repeated, resulting in multiple transfer transactions.

    solution:

    1. DynamoDB enables on-demand mode.
    2. Optimize the structure of DynamoDB and use batch delete instead of for loop to update one by one.
    3. The robot only generates a settlement slip, and the maximum number of transactions allowed per block is packaged at a time. Batch settlement is handled by another Lambda function.
    opened by tunogya 1
  • Balance overflow

    Balance overflow

    We set up a balance field, whose initial value is set to the total amount of the red envelope, and the balance will be reduced each time you grab it. In theory there shouldn't be a negative balance, but it does happen.

    We intend to use Redis to solve the problem of read and write latency. Or use telegram session.

    opened by tunogya 1
Owner
NEST Protocol
Truly Decentralized Oracle, Nodeless Permissionless Quotation, On-chain Verification.
NEST Protocol
GitHub https://t.me/NESTRedEnvelopesBot
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