Opensea Scraper

DISCLAIMER: You can get accurate realtime floor prices from this official opensea API endpoint: https://api.opensea.io/api/v1/collection/{slug}/stats:
``js
const axios = require("axios");

async function getFloorPrice(slug) {
try {
const url = https://api.opensea.io/collection/${slug}/stats;
const response = await axios.get(url);
return response.data.stats.floor_price;
} catch (err) {
console.log(err);
return undefined;
}
}

await getFloorPrice("lostpoets");
await getFloorPrice("treeverse");
await getFloorPrice("cool-cats-nft");
`

If you need floor prices, please use the official API (see above 👆👆👆). This scraper still can be used to scrape additional information about offers (tokenId, name, tokenContractAddress and offerUrl) as well as the ranking.

Install

`bash
npm install opensea-scraper
`

Usage

ℹ slug is the human readable identifier that opensea uses to identify a collection. It can be extracted from the URL: https://opensea.io/collection/{slug}
!slug

ℹ options is an object with the following keys
- debug [Boolean] launches chromium locally, omits headless mode (default: false)
- logs [Boolean]: display logs in the console (default: false)
- sort [Boolean]: sorts the offers by lowest to highest (default: true)
- additionalWait [Number]: time to wait (in milliseconds) after page was loaded before the scraping starts (default: 0)
- browserInstance [PuppeteerBrowser]: bring your own browser instance for more control

`js
const OpenseaScraper = require("opensea-scraper");

// which nft project to scrape?
const slug = "cool-cats-nft";

// options
const options = {
debug: false,
logs: false,
sort: true,
additionalWait: 0,
browserInstance: undefined,
}

// get basic info (from the opensea API)
const basicInfo = await OpenseaScraper.basicInfo(slug);

// get offers from opensea. Each offer includes the
// floor price, tokenName, tokenId, tokenContractAddress
// and offerUrl
// scrapes only the first 20 offers from opensea.
let result = await OpenseaScraper.offers(slug, options);
console.dir(result, {depth: null}); // result object contains keys stats and offers

// get offers from opensea using a custom link
// Opensea supports encoding filtering in the URL so
// this method is helpful for getting a specific asset
// (for example floor price for a deadfellaz with
// a purple fur trait)
let url = "https://opensea.io/collection/deadfellaz?search[sortAscending]=true&search[sortBy]=PRICE&search[stringTraits][0][name]=Body&search[stringTraits][0][values][0]=Purple%20Fur&search[toggles][0]=BUY_NOW";
result = await OpenseaScraper.offersByUrl(url, options);
// result object contains keys stats and offers
console.dir(result, {depth: null});

// DISCLAIMER: FUNCTION offersByScrolling
// IS CURRENTLY NOT WORKING (!!!) see issue#36
// get offersByScrolling from opensea. This is an
// alternative method to get the same data as with
// the function offers, with the only difference
// that the data is here scraped actively by scrolling
// through the page. This method is not as efficient
// as the offers method, but it can scrape more
// than 20 offers. You could even scrape a whole
// collection with ~10k spots (this is not recommended
// though).
// IMPORTANT: if you need less than 20 offers,
// please use the function offers() instead
let resultSize = 40;
result = await OpenseaScraper.offersByScrolling(slug, resultSize, options);
// result object contains keys stats and offers
console.dir(result, {depth: null});

// DISCLAIMER: FUNCTION offersByScrollingByUrl
// IS CURRENTLY NOT WORKING (!!!) see issue#36
// get offersByScrollingByUrl from opensea using a
// custom link instead of the slug. the same logic
// applies as in offersByScrolling()
// Opensea supports encoding filtering in the URL so
// this method is helpful for getting a specific asset
// (for example floor price for a deadfellaz with
// a purple fur trait)
// IMPORTANT: if you need less than 20 offers,
// please use the function offersByUrl() instead
url = "https://opensea.io/collection/deadfellaz?search[sortAscending]=true&search[sortBy]=PRICE&search[stringTraits][0][name]=Body&search[stringTraits][0][values][0]=Purple%20Fur&search[toggles][0]=BUY_NOW";
resultSize = 40;
result = await OpenseaScraper.offersByScrollingByUrl(url, resultSize, options);
// result object contains keys stats and offers
console.dir(result, {depth: null});

// scrape all slugs, names and ranks from the top collections from the rankings page
// "type" is one of the following:
// "24h": ranking of last 24 hours: https://opensea.io/rankings?sortBy=one_day_volume
// "7d": ranking of last 7 days: https://opensea.io/rankings?sortBy=seven_day_volume
// "30d": ranking of last 30 days: https://opensea.io/rankings?sortBy=thirty_day_volume
// "total": scrapes all time ranking: https://opensea.io/rankings?sortBy=total_volume
// "chain" is one of the following: "ethereum", "matic", "klaytn", "solana"
// if chain is unset, all chains will be selected by default
const type = "24h"; // possible values: "24h", "7d", "30d", "total"
const chain = "solana";
const ranking = await OpenseaScraper.rankings(type, chain, options);
`

$3

To investigate an issue turn on logs and debug mode (debug: true and logs: true):
`js
const result = await OpenseaScraper.offers("treeverse", {
debug: true,
logs: true
});
`

$3

if you want to customize the settings for your puppeteer instance you can add your own puppeteer browser instance in the options. 🚧 IMPORTANT: I recommend using stealth plugin as otherwise you most likely won't be able to scrape opensea. If you find a way without using the stealth plugin please report in the form of an issue!
`js
const puppeteer = require('puppeteer-extra');
// add stealth plugin and use defaults (all evasion techniques)
const StealthPlugin = require('puppeteer-extra-plugin-stealth');
puppeteer.use(StealthPlugin());

const myPuppeteerInstance = await puppeteer.launch(myCustomSettings);

const result = await OpenseaScraper.offer("cool-cats-nft", {
browserInstance: myPuppeteerInstance
});
`

Demo

`bash
npm run demo
`

Run local console / REPL


To test the functions in an REPL node environment that has OpenseaScraper service preloaded simply run:
`bash
node --experimental-repl-await -i -e "$(< init-dev-env.js)"
`
I recommend saving an alias:
`bash
alias consl='node --experimental-repl-await -i -e "$(< init-dev-env.js)"';
`

Contribute

Open PR or issue if you would like to have more features added.

Donations 🙏

`
Thanks for your support!
BTC: bc1qq5qn96ahlqjxfxz2n9l20kem8p9nsz5yzz93f7
ETH: 0x3e4503720Fb8f4559Ecf64BE792b3100722dE940
``

nftfloorprice.info 🔔

Simple NFT floor price alerts. Easily track all your NFTs and receive realtime email alerts with: https://nftfloorprice.info