Want to be the next cryptocurrency scientist expedition team? [Wangchai] If you are interested, you can chat with me to sign up. Thank you for your support!

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First of all, welcome everyone to join the group. In the group, everyone can communicate with each other and learn about the technology of the cryptocurrency circle.

Recently, several group members want to learn technology. Today, I thought about it and will probably arrange to learn the following main things later.

1. Nodejs syntax

1. Nodejs environment installation

2. Variables, data types, functions, objects, arrays

3. Node module (npm package)

4. File system

4. How to call http request, websocket

5. Database

2. Centralized exchange application (taking Binance as an example)

1. Price fluctuations (using the main technology websocket, http)

2. Contract rate (using the main technology http)

3. Strategy automatic order (comprehensive)

4. Exchange announcement, API addition (using the main technology http, crawler, npm module package ）

5. Financial news (main technologies used are http and crawlers)

III. Web3js basics

Web3js is a blockchain library of nodejs, which provides the function of interacting with the Ethereum blockchain

1. How to connect to the blockchain network (eth, sol, bsc)

2. Account management, obtain account information, balance, etc.

3. How to send transactions, obtain transaction details, query transaction status and information

4. How to obtain blockchain information, such as the latest block number, etc.

5. How to call smart contracts, how to sign, query contract status, and monitor transaction status

IV. On-chain applications (specific applications will be combined with the hot spots at the time)

1. Get the price of a certain currency on the chain

2. On-chain transactions and transfers

3. Batch create wallets

4. Batch transfers

5. Batch pledges

6. Batch haircuts

7. Batch mint nft

Friends who are interested, add me on WeChat ZX66BTC