When testrpc starts, it outputs the generated addresses, but all in lower case. What's a lightweight way to get their EIP55 checksummed format?
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2 Answers
Ensure testrpc is running. From a second terminal (opened by running node), run:
> Web3 = require('web3')
> web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
This should shoot out a list of all available commands, and leave you with a command prompt. From the prompt you can then run the appropriate command:
> web3.toChecksumAddress('0x65601db7431427e32ce2d60e6a373bc7a7f68eb4')
'0x65601DB7431427E32Ce2d60e6a373bc7A7F68EB4'
answered Mar 7, 2017 at 20:32
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1That's a better answer than mine. Particularly as "lightweight" is a criteria. Commented Mar 7, 2017 at 21:09
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web3 no longer has tochecksum address?– user22075Commented Jan 18, 2018 at 20:03
In that link you supplied there is code that gives your answer:
// Make a checksum address
var toChecksumAddress = function (address) {
address = address.toLowerCase().replace('0x','');
var addressHash = web3.sha3(address);
var checksumAddress = '0x';
for (var i = 0; i < address.length; i++ ) {
// If ith character is 9 to f then make it uppercase
if (parseInt(addressHash[i], 16) > 7) {
checksumAddress += address[i].toUpperCase();
} else {
checksumAddress += address[i];
}
}
return checksumAddress;
};
When you say
What's a lightweight way to get their EIP55 checksummed format?
Are you looking for lighterweight code than that?
answered Mar 7, 2017 at 19:13
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That code has an error in it :-) It should be
if (parseInt(addressHash[i], 16) > 7)not> 8. It might be worth grabbing the code that was committed, rather than code talked about in the thread, just to be safe. Commented Mar 7, 2017 at 19:34