414 lines
No EOL
7.7 KiB
JavaScript
414 lines
No EOL
7.7 KiB
JavaScript
const ContractABI = JSON.parse(`[
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": true,
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"internalType": "address",
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"name": "previousOwner",
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"type": "address"
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},
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{
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"indexed": true,
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"internalType": "address",
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"name": "newOwner",
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"type": "address"
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}
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],
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"name": "OwnershipTransferred",
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"type": "event"
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},
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{
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"inputs": [],
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"name": "buyToken",
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"outputs": [],
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"stateMutability": "payable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "_amount",
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"type": "uint256"
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}
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],
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"name": "depositTokens",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "renounceOwnership",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "_amount",
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"type": "uint256"
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}
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],
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"name": "sellTokens",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "_price",
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"type": "uint256"
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}
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],
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"name": "setPrice",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "_priceDivider",
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"type": "uint256"
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}
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],
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"name": "setPriceDivider",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "newOwner",
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"type": "address"
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}
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],
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"name": "transferOwnership",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "token",
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"type": "address"
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}
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],
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"stateMutability": "nonpayable",
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"type": "constructor"
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},
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{
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"inputs": [],
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"name": "getPrice",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getPriceDivider",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getSmartContractBalance",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "owner",
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"outputs": [
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{
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"internalType": "address",
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"name": "",
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"type": "address"
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}
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],
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"stateMutability": "view",
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"type": "function"
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}
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]`);
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const ERC20ABI = JSON.parse(`[
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": true,
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"internalType": "address",
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"name": "owner",
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"type": "address"
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},
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{
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"indexed": true,
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"internalType": "address",
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"name": "spender",
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"type": "address"
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},
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{
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"indexed": false,
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"internalType": "uint256",
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"name": "value",
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"type": "uint256"
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}
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],
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"name": "Approval",
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"type": "event"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": true,
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"internalType": "address",
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"name": "from",
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"type": "address"
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},
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{
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"indexed": true,
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"internalType": "address",
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"name": "to",
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"type": "address"
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},
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{
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"indexed": false,
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"internalType": "uint256",
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"name": "value",
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"type": "uint256"
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}
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],
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"name": "Transfer",
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"type": "event"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "owner",
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"type": "address"
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},
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{
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"internalType": "address",
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"name": "spender",
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"type": "address"
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}
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],
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"name": "allowance",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "spender",
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"type": "address"
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},
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{
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"internalType": "uint256",
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"name": "amount",
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"type": "uint256"
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}
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],
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"name": "approve",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "account",
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"type": "address"
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}
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],
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"name": "balanceOf",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "totalSupply",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "to",
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"type": "address"
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},
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{
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"internalType": "uint256",
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"name": "amount",
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"type": "uint256"
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}
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],
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"name": "transfer",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "from",
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"type": "address"
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},
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{
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"internalType": "address",
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"name": "to",
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"type": "address"
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},
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{
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"internalType": "uint256",
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"name": "amount",
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"type": "uint256"
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}
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],
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"name": "transferFrom",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"stateMutability": "nonpayable",
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"type": "function"
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}
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]`);
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const ContractAddress = "0x124375e24Ce464074B3f3Fe50B26839fCCbD49d7";
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const tokenAddress = '0x6C954E9355CBeFb21E1523B3784F162BbBF2e64e';
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const tokenSymbol = 'EHUF';
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const tokenDecimals = 18;
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const tokenImage = 'https://en.numista.com/catalogue/photos/hongrie/5f2ad53298dae2.07716248-original.jpg';
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function registerToken() {
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const wasAdded = ethereum.request({
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method: 'wallet_watchAsset',
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params: {
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type: 'ERC20', // Initially only supports ERC20, but eventually more!
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options: {
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address: tokenAddress, // The address that the token is at.
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symbol: tokenSymbol, // A ticker symbol or shorthand, up to 5 chars.
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decimals: tokenDecimals, // The number of decimals in the token
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image: tokenImage, // A string url of the token logo
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},
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},
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});
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}
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async function registerTestnet() {
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try {
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await ethereum.request({
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method: 'wallet_switchEthereumChain',
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params: [{ chainId: '0x9C85' }],
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});
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} catch (switchError) {
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// This error code indicates that the chain has not been added to MetaMask.
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if (switchError.code === 4902) {
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try {
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await ethereum.request({
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method: 'wallet_addEthereumChain',
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params: [
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{
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chainId: '0x9C85',
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chainName: 'BME Testnet',
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rpcUrls: ['https://testnet.toldi.eu'],
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iconUrls: ['https://www.bme.hu/sites/all/themes/foo/logo.png'],
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nativeCurrency: {
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name: "BMEther",
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symbol: "BME", // 2-6 characters long
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decimals: 18
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}
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},
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],
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});
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} catch (addError) {
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// handle "add" error
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}
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}
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// handle other "switch" errors
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}
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}
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function isNumeric(str) {
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if (typeof str != "string") return false // we only process strings!
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return !isNaN(str) && // use type coercion to parse the _entirety_ of the string (`parseFloat` alone does not do this)...
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!isNaN(parseFloat(str)) // ...and ensure strings of whitespace fail
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} |