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feat: add transferFrom and approve to input address for ERC20 contract #271

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merged 3 commits into from
Nov 7, 2023
Merged

feat: add transferFrom and approve to input address for ERC20 contract #271

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cbfe118
Add transfer from and approve for ERC20
seaona Nov 7, 2023
ac500d3
improve naming
seaona Nov 7, 2023
11b1e35
Add label to html
seaona Nov 7, 2023
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33 changes: 32 additions & 1 deletion src/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -343,6 +343,15 @@ <h4 class="card-title">
Transfer Tokens
</button>

<div class="form-group">
<label>Approve to Address</label>
<input
class="form-control"
id="approveTo"
value="0x9bc5baF874d2DA8D216aE9f137804184EE5AfEF4"
/>
</div>

<button
class="btn btn-primary btn-lg btn-block mb-3"
id="approveTokens"
Expand All @@ -351,6 +360,28 @@ <h4 class="card-title">
Approve Tokens
</button>

<div class="form-group">
<label>Transfer From</label>
<input
class="form-control"
id="transferFromSenderInput"
/>
</div>

<div class="form-group">
<label>Transfer To</label>
<input
class="form-control"
id="transferFromRecipientInput"
/>
</div>
<button
class="btn btn-primary btn-lg btn-block mb-3"
id="transferFromTokens"
disabled
>
Transfer From Tokens
</button>
<button
class="btn btn-primary btn-lg btn-block mb-3"
id="transferTokensWithoutGas"
Expand Down Expand Up @@ -1180,4 +1211,4 @@ <h4 class="card-title">

<script src="main.js" defer></script>
</body>
</html>
</html>
38 changes: 37 additions & 1 deletion src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -138,11 +138,19 @@ const sendEIP1559Button = document.getElementById('sendEIP1559Button');

// Send Tokens Section
const decimalUnitsInput = document.getElementById('tokenDecimals');
const approveTokensToInput = document.getElementById('approveTo');
const transferFromSenderInput = document.getElementById(
'transferFromSenderInput',
);
const transferFromRecipientInput = document.getElementById(
'transferFromRecipientInput',
);
const tokenSymbol = 'TST';
const tokenAddresses = document.getElementById('tokenAddresses');
const createToken = document.getElementById('createToken');
const watchAssets = document.getElementById('watchAssets');
const transferTokens = document.getElementById('transferTokens');
const transferFromTokens = document.getElementById('transferFromTokens');
const approveTokens = document.getElementById('approveTokens');
const transferTokensWithoutGas = document.getElementById(
'transferTokensWithoutGas',
Expand Down Expand Up @@ -271,9 +279,13 @@ const allConnectedButtons = [
sendButton,
createToken,
decimalUnitsInput,
approveTokensToInput,
watchAssets,
transferTokens,
transferFromTokens,
approveTokens,
transferFromRecipientInput,
transferFromSenderInput,
transferTokensWithoutGas,
approveTokensWithoutGas,
getEncryptionKeyButton,
Expand Down Expand Up @@ -806,9 +818,13 @@ const updateContractElements = () => {
tokenAddresses.innerHTML = hstContract ? hstContract.address : '';
watchAssets.disabled = false;
transferTokens.disabled = false;
transferFromTokens.disabled = false;
approveTokens.disabled = false;
transferTokensWithoutGas.disabled = false;
approveTokensWithoutGas.disabled = false;
transferFromSenderInput.disabled = false;
approveTokensToInput.disabled = false;
transferFromRecipientInput.disabled = false;
}
};

Expand Down Expand Up @@ -1424,9 +1440,13 @@ const initializeFormElements = () => {
.join(', ');
watchAssets.disabled = false;
transferTokens.disabled = false;
transferFromTokens.disabled = false;
approveTokens.disabled = false;
transferTokensWithoutGas.disabled = false;
approveTokensWithoutGas.disabled = false;
approveTokensToInput.disabled = false;
transferFromSenderInput.disabled = false;
transferFromRecipientInput.disabled = false;
};

watchAssets.onclick = async () => {
Expand Down Expand Up @@ -1469,7 +1489,7 @@ const initializeFormElements = () => {

approveTokens.onclick = async () => {
const result = await hstContract.approve(
'0x9bc5baF874d2DA8D216aE9f137804184EE5AfEF4',
approveTokensToInput.value,
`${7 * 10 ** decimalUnitsInput.value}`,
{
from: accounts[0],
Expand All @@ -1480,6 +1500,22 @@ const initializeFormElements = () => {
console.log('result', result);
};

transferFromTokens.onclick = async () => {
const result = await hstContract.transferFrom(
transferFromSenderInput.value,
transferFromRecipientInput.value,
decimalUnitsInput.value === '0'
? 1
: `${1.5 * 10 ** decimalUnitsInput.value}`,
{
from: accounts[0],
gasLimit: '95000',
gasPrice: '20000000000',
},
);
console.log('result', result);
};

transferTokensWithoutGas.onclick = async () => {
const result = await hstContract.transfer(
'0x2f318C334780961FB129D2a6c30D0763d9a5C970',
Expand Down
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