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BappTutorial/nftbapp/backend-nftdapp/build/contracts/ERC721Receiver.json
elegant651 6e0388b653 init
2020-03-24 14:39:38 +09:00

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{
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"type": "address"
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{
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"type": "uint256"
},
{
"name": "_data",
"type": "bytes"
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],
"name": "onERC721Received",
"outputs": [
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"type": "bytes4"
}
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"bytecode": "0x",
"deployedBytecode": "0x",
"sourceMap": "",
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"source": "pragma solidity ^0.4.24;\n\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract ERC721Receiver {\n /**\n * @dev Magic value to be returned upon successful reception of an NFT\n * Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`,\n * which can be also obtained as `ERC721Receiver(0).onERC721Received.selector`\n */\n bytes4 internal constant ERC721_RECEIVED = 0x150b7a02;\n\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safetransfer`. This function MAY throw to revert and reject the\n * transfer. Return of other than the magic value MUST result in the\n * transaction being reverted.\n * Note: the contract address is always the message sender.\n * @param _operator The address which called `safeTransferFrom` function\n * @param _from The address which previously owned the token\n * @param _tokenId The NFT identifier which is being transferred\n * @param _data Additional data with no specified format\n * @return `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(\n address _operator,\n address _from,\n uint256 _tokenId,\n bytes _data\n )\n public\n returns(bytes4);\n}\n",
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