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Replace @chainlink's CCIPReadProvider with ethers.js #28

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Replace @chainlink's CCIPReadProvider with ethers.js #28

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3 changes: 1 addition & 2 deletions packages/examples/trusted-gateway-token/client/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -50,10 +50,9 @@
"typescript": "^4.3.5"
},
"dependencies": {
"@chainlink/ethers-ccip-read-provider": "0.2.2",
"@types/node-fetch": "^2.5.12",
"dotenv": "^10.0.0",
"ethers": "^5.4.4",
"ethers": "^5.6.9",
"jayson": "^3.6.4",
"node-fetch": "^2.6.1"
}
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45 changes: 37 additions & 8 deletions packages/examples/trusted-gateway-token/client/src/index.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import { providers, Transaction } from 'ethers';

const ethers = require('ethers');
const ccipread = require('@chainlink/ethers-ccip-read-provider');
const fs = require('fs');

require('dotenv').config({ path: '../.env' });
Expand All @@ -14,26 +15,54 @@ const abi = JSON.parse(
const RECIPIENT = '0x8626f6940e2eb28930efb4cef49b2d1f2c9c1199';
const { TOKEN_ADDRESS, PROVIDER_URL, SENDER_ACCOUNT_INDEX } = process.env;

const provider = new ccipread.CCIPReadProvider(
new ethers.providers.JsonRpcProvider(PROVIDER_URL)
);
class MyCustomProvider extends providers.JsonRpcProvider {
async ccipReadFetch(
tx: Transaction,
calldata: string,
urls: Array<string>
): Promise<null | string> {
urls = urls.filter((u: any) => isSafeUrl(u));
return super.ccipReadFetch(tx, calldata, urls);
}
}

function isSafeUrl(url: string): boolean {
console.log(`Allowing ${url}`);
return true;
}

const provider = new MyCustomProvider(PROVIDER_URL);
const signer = provider.getSigner(parseInt(SENDER_ACCOUNT_INDEX as string));
const erc20 = new ethers.Contract(TOKEN_ADDRESS, abi, signer);

async function main() {
const amount = 1;
const sender = await signer.getAddress();

console.log(`SENDER ${sender} balance ${await erc20.balanceOf(sender)}`);
console.log(`CCIP enabled: ${!provider.disableCcipRead}`);

console.log(
`SENDER ${sender} balance ${await erc20.balanceOf(sender, {
ccipReadEnabled: true,
})}`
);
console.log(
`RECIPIENT ${RECIPIENT} balance ${await erc20.balanceOf(RECIPIENT)}`
`RECIPIENT ${RECIPIENT} balance ${await erc20.balanceOf(RECIPIENT, {
ccipReadEnabled: true,
})}`
);
console.log(`TRANSFER ${amount} from ${sender} to ${RECIPIENT}`);
const tx = await erc20.transfer(RECIPIENT, amount);
await tx.wait();
console.log(`SENDER ${sender} balance ${await erc20.balanceOf(sender)}`);
console.log(
`RECIPIENT ${RECIPIENT} balance ${await erc20.balanceOf(RECIPIENT)}`
`SENDER ${sender} balance ${await erc20.balanceOf(sender, {
ccipReadEnabled: true,
})}`
);
console.log(
`RECIPIENT ${RECIPIENT} balance ${await erc20.balanceOf(RECIPIENT, {
ccipReadEnabled: true,
})}`
);
}

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2 changes: 1 addition & 1 deletion packages/examples/trusted-gateway-token/contracts/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@
"chai": "^4.2.0",
"dotenv": "^10.0.0",
"ethereum-waffle": "^3.0.0",
"ethers": "^5.0.0",
"ethers": "^5.6.9",
"hardhat": "^2.7.1"
},
"dependencies": {
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4 changes: 2 additions & 2 deletions packages/examples/trusted-gateway-token/server/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -64,9 +64,9 @@
"typescript": "^4.3.5"
},
"dependencies": {
"@chainlink/ccip-read-server": "0.2.1",
"@chainlink/ccip-read-server": "^0.2.1",
"dotenv": "^10.0.0",
"ethers": "^5.4.4",
"ethers": "^5.6.9",
"ts-node": "^10.2.0"
}
}
2 changes: 1 addition & 1 deletion packages/server/package.json
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Expand Up @@ -63,7 +63,7 @@
},
"dependencies": {
"cors": "^2.8.5",
"ethers": "^5.3.1",
"ethers": "^5.6.9",
"express": "^4.17.1"
}
}