How to get data regarding random smart contract addresses. Such as creation date, chain, holders (how many wallets are holding)

Question

Basically, the node.js or javascript function will pull data from ETH or BSC scan using web3 or whatever, analyze it and display by the following steps:

System will take the smart contract address of the ETH or BSC chain.
The system will find chains via a platform like Etherscan.io, BSC scan.
After knowing the chain, the system will check how many wallets are holding the token "Holders"
Get Contract creation date via ETH or BSC scan.

How can I achieve the required results?

I dont think we can differentiate an address from ETH chain or BSC chain as one address can be both ETH and BSC. — , Jul 24 '21 at 09:01
If its correct. No worries. I want to get required data. Is that possible using web3 or ethers library? — Haider Yaqoob, Jul 24 '21 at 11:02

score 2 · Accepted Answer · edited Jul 26 '21 at 12:58

The system will find chains via a platform like Etherscan.io, BSC scan.

Answer: Create accounts on ETH and BSC scan, get API key then in the response of following 2 requests, if you get status code = 1, it means the contract is deployed on that particular chain.

Using Etherscan dev API https://api.etherscan.io/api?module=contract&action=getabi&address=0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413&apikey=xxx

Similarly for BSC, using BSC scan dev API https://api.bscscan.com/api?module=contract&action=getabi&address=0x0000000000000000000000000000000000001004&apikey=xxx

After knowing the chain, the system will check how many wallets are holding the token "Holders"

Well, for this I tried to find etherscan free API. However, I think they provide API in the PRO plan. So the quick solution I found using node.js and web scraping npm library cheerio is:

     const options1 = {
                method: 'GET',
                url: `https://etherscan.io/token/${req.query.tokenAddress}`,
                headers: { 'content-type': 'application/json' },
                json: true
            };
            request(options1, (error, response, html) => {
                if (!error && response.statusCode == 200) {
                    const $ = cheerio.load(html);

                    const holders = $('div[id = "ContentPlaceHolder1_tr_tokenHolders"] > div > div').text().trim();

                    console.log(holders);
                    res.send({ chain, holders });
                } else if (error) throw new Error(error);
            });

Get Contract creation date via ETH or BSC scan.

The very first transaction of any contract is for the deployment of the smart contract. So, we can get the contract creation date and time by getting the execution timestamp of the first transaction for that particular smart contract.

For EthScan, we can get transactions of any contract via their API call https://api.etherscan.io/api?module=account&action=txlist&address=0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae&startblock=0&endblock=99999999&page=1&offset=10&sort=asc&apikey=xxx

and for BSC it's https://api.bscscan.com/api?module=account&action=txlist&address=0x0000000000000000000000000000000000001004&startblock=1&endblock=99999999&page=1&offset=10&sort=asc&apikey=xxx

For more information Please consult BSC scan docs and ETH scan docs

How to get data regarding random smart contract addresses. Such as creation date, chain, holders (how many wallets are holding)

1 Answers1