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    {
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        "id": "vm8vn9t8DvC_"
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      "source": [
        "# Blockchain"
      ]
    },
    {
      "attachments": {},
      "cell_type": "markdown",
      "metadata": {
        "id": "5WjXERXzFEhg"
      },
      "source": [
        "## Overview"
      ]
    },
    {
      "attachments": {},
      "cell_type": "markdown",
      "metadata": {
        "id": "juAmbgoWD17u"
      },
      "source": [
        "The intention of this notebook is to provide a means of testing functionality in the Langchain Document Loader for Blockchain.\n",
        "\n",
        "Initially this Loader supports:\n",
        "\n",
        "*   Loading NFTs as Documents from NFT Smart Contracts (ERC721 and ERC1155)\n",
        "*   Ethereum Maninnet, Ethereum Testnet, Polgyon Mainnet, Polygon Testnet (default is eth-mainnet)\n",
        "*   Alchemy's getNFTsForCollection API\n",
        "\n",
        "It can be extended if the community finds value in this loader.  Specifically:\n",
        "\n",
        "*   Additional APIs can be added (e.g. Tranction-related APIs)\n",
        "\n",
        "This Document Loader Requires:\n",
        "\n",
        "*   A free [Alchemy API Key](https://www.alchemy.com/)\n",
        "\n",
        "The output takes the following format:\n",
        "\n",
        "- pageContent= Individual NFT\n",
        "- metadata={'source': '0x1a92f7381b9f03921564a437210bb9396471050c', 'blockchain': 'eth-mainnet', 'tokenId': '0x15'})"
      ]
    },
    {
      "attachments": {},
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "## Load NFTs into Document Loader"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {},
      "outputs": [],
      "source": [
        "alchemyApiKey = \"get from https://www.alchemy.com/ and set in environment variable ALCHEMY_API_KEY\""
      ]
    },
    {
      "attachments": {},
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "### Option 1: Ethereum Mainnet (default BlockchainType)"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "id": "J3LWHARC-Kn0"
      },
      "outputs": [],
      "source": [
        "contractAddress = \"0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d\" # Bored Ape Yacht Club contract address\n",
        "\n",
        "blockchainType = BlockchainType.ETH_MAINNET  #default value, optional parameter\n",
        "\n",
        "blockchainLoader = BlockchainDocumentLoader(contract_address=contractAddress,\n",
        "                                            api_key=alchemyApiKey)\n",
        "\n",
        "nfts = blockchainLoader.load()\n",
        "\n",
        "nfts[:2]"
      ]
    },
    {
      "attachments": {},
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "### Option 2: Polygon Mainnet"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {},
      "outputs": [],
      "source": [
        "contractAddress = \"0x448676ffCd0aDf2D85C1f0565e8dde6924A9A7D9\" # Polygon Mainnet contract address\n",
        "\n",
        "blockchainType = BlockchainType.POLYGON_MAINNET \n",
        "\n",
        "blockchainLoader = BlockchainDocumentLoader(contract_address=contractAddress, \n",
        "                                            blockchainType=blockchainType, \n",
        "                                            api_key=alchemyApiKey)\n",
        "\n",
        "nfts = blockchainLoader.load()\n",
        "\n",
        "nfts[:2]"
      ]
    }
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