gem-sdk

npm install gem-sdk

const web3Provider = new Web3(window.ethereum);

const gemInstance = new Gem(web3Provider);

Test Cases

fork mainnet
ganache-cli --fork https://mainnet.infura.io/v3/infuraid

rename .env.example to .env and input required fields

npm test

batchBuyNft

const account = senders wallet address;

const paymentToken = "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"; // ethereum
or
const paymentToken = "0x6B175474E89094C44Da98b954EedeAC495271d0F"; // dai

in case of dai it will automatically approve dai.
in case of both eth and dai it will automatically check users balance.
you can use any currency the function will manage.

single asset buying

await gemNewInstance.batchBuyNfts(account, paymentToken, [
     {
          standard: "ERC1155",
          address: "0xa342f5d851e866e18ff98f351f2c6637f4478db5",
          tokenId:
            "53343204100803765692379285688171671302437967278842259121980540727210832568320",
          amount: 1,
     }
]);

multiple asset buying (single transaction)

await gemNewInstance.batchBuyNfts(account, paymentToken, [
      {
        standard: "ERC721",
        address: "0xf9d53e156fe880889e777392585feb46d8d840f6",
        tokenId: "993",
        amount: 1,
      },
      {
        standard: "ERC721",
        address: "0xf9d53e156fe880889e777392585feb46d8d840f6",
        tokenId: "3167",
        amount: 1,
      },
      {
        standard: "ERC721",
        address: "0xf75140376d246d8b1e5b8a48e3f00772468b3c0c",
        tokenId: "7085",
        amount: 1,
      },
      {
        standard: "ERC721",
        address: "0xe5545fa0636a82c0b37c7db62e2104e69a11d062",
        tokenId: "642",
        amount: 1,
      },
 ]);


await gemNewInstance.batchBuyNfts(account, paymentToken, [
      {
        standard: "ERC1155",
        address: "0x76be3b62873462d2142405439777e971754e8e77",
        tokenId: "10172",
        amount: 2,
      },
      {
        standard: "ERC1155",
        address: "0x76be3b62873462d2142405439777e971754e8e77",
        tokenId: "10391",
        amount: 2,
      },
      {
        standard: "ERC1155",
        address: "0x28472a58a490c5e09a238847f66a68a47cc76f0f",
        tokenId: "0",
        amount: 2,
      },
      {
        standard: "ERC721",
        address: "0xf9d53e156fe880889e777392585feb46d8d840f6",
        tokenId: "993",
        amount: 1,
      },
      {
        standard: "ERC721",
        address: "0xf9d53e156fe880889e777392585feb46d8d840f6",
        tokenId: "3167",
        amount: 1,
      },
      {
        standard: "ERC721",
        address: "0xf75140376d246d8b1e5b8a48e3f00772468b3c0c",
        tokenId: "7085",
        amount: 1,
      },
      {
        standard: "ERC721",
        address: "0xe5545fa0636a82c0b37c7db62e2104e69a11d062",
        tokenId: "642",
        amount: 1,
      },
]);

refer to this doc to use these ahead functions in detailed manner

https://drive.google.com/file/d/1YwZ7nradT_iS-BRNtz3EIdLAVBQav9Xq/view

getNftData

const data = await gemInstance.getNftData({
      nftAddress: "0x28472a58a490c5e09a238847f66a68a47cc76f0f",
      nftId: "0",
});

const fields = {
        name: 1,
        symbol: 1,
        standard: 1,
        description: 1,
        address: 1,
        createdDate: 1,
        externalUrl: 1,
        imageUrl: 1,
        totalSupply: 1,
        sevenDayVolume: 1,
        oneDayVolume: 1,
        stats: 1,
        traits: 1,
        indexingStatus: 1,
        discordUrl: 1,
        instagramUsername: 1,
        isVerified: 1,
        lastNumberOfUpdates: 1,
        lastOpenSeaCancelledId: 1,
        lastOpenSeaSaleCreatedId: 1,
        lastOpenSeaTransferId: 1,
        lastRaribleAssetUpdateId: 1,
        mediumUsername: 1,
        telegramUrl: 1,
        twitterUsername: 1,
        updatedAt: 1,
        wikiUrl: 1,
      }

getCollectionData

 sdk is using this api from the doc

 https://gem-public-api.herokuapp.com/collections

 const data = await gemInstance.getCollectionData({
      sort: { sevenDayVolume: 1 },
      limit: 1,
      fields: fields, // by default if you dont have fileds key in object it will take automatically take above fields object
    });

getFilteredData

the sdk is using this api https://gem-public-api.herokuapp.com/collections with filter field is here

const data = await gemInstance.getCollectionData({
      filters: { address: "0x50f5474724e0ee42d9a4e711ccfb275809fd6d4a" },
      limit: 1,
      fields: fields,
    });

    const data = await gemInstance.getCollectionData({
      sort: { sevenDayVolume: 1 },
      filters: { searchText: "bored" },
      limit: 1,
      fields: fields,
    });

const assetFields = {
    "id": 1,
    "name": 1,
    "address": 1,
    "collectionName": 1,
    "collectionSymbol": 1,
    "externalLink": 1,
    "imageUrl": 1,
    "smallImageUrl": 1,
    "animationUrl": 1,
    "standard": 1,
    "decimals": 1,
    "market": 1,
    "currentBasePrice": 1,
    "paymentToken": 1,
    "marketUrl": 1,
    "marketplace": 1,
    "tokenId": 1,
    "priceInfo": 1,
    "tokenReserves": 1,
    "ethReserves": 1,
    "url": 1,
    "sellOrders": 1
};

getAssetData

the sdk is using this api https://gem-public-api.herokuapp.com/assets from the doc

const data = await gemInstance.getAssetData({
      filters: {
        address: "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
      },
      // { "field name": "asc" or "desc"}, you can sort by multiple fields
      sort: { currentEthPrice: "asc" },
      // { "field name": 1 (include field) or -1 (ignore field) }
      fields: assetFields, // by default if you dont have fileds key in object it will take automatically take above assetFields object
      limit: 10,
      offset: 0,
      markets: ["opensea", "rarible", "nftx", "nft20","larvalabs"],
    });