Snippet with the JavaScript snippet for Ethereum ERC20 token

Requirements

Node 8.5.0+

JavaScript example

Clone repo and install packages

git clone https://github.com/mezrin/snippet-erc20-js
cd snippet-erc20-js
npm install

Configure example script, set variable ethereumNodeURL

nano example.js

Launch example

node example.js

You will see results like this:

JavaScript ERC20 test started
Token name: Golem Network Token
Token symbol: GNT
Token decimals: 18
Total supply: 1000000000
Balance of the user '0xbdcd1cacdb0a7901ad40289521b3815e429d438b': 8729.989350924343
Get past transactions
	From: 0x23da1bc5feb8b96b1cdb52cc5a18d2a37cc21a33, To: 0xbdcd1cacdb0a7901ad40289521b3815e429d438b, Value: 2888
	From: 0x8d8236e491898a58fc840b39c96b8dff6d38d932, To: 0xbdcd1cacdb0a7901ad40289521b3815e429d438b, Value: 2100
	From: 0x082526e6dca96ee707d9669f88a196b50d373163, To: 0xbdcd1cacdb0a7901ad40289521b3815e429d438b, Value: 228
	From: 0x8cdad5ecbc3e83fb7cc4c34873d4a344d954ce25, To: 0xbdcd1cacdb0a7901ad40289521b3815e429d438b, Value: 2775.58464208
	From: 0xc8d739af809e4f00ed2aec19f94b37d4e865538d, To: 0xbdcd1cacdb0a7901ad40289521b3815e429d438b, Value: 1579
Watch for the new transactions
JavaScript ERC20 test finished

PHP example

Perform all steps related to JS example, make sure it works.

Configure example script, set variable ethereumNodeURL

nano example.php

Launch example

php -f example.php

PHP ERC20 test started
Token name: Golem Network Token
Token symbol: GNT
Token decimals: 18
Total supply: 1000000000.000000000000000000
Balance of the user '0xbdcd1cacdb0a7901ad40289521b3815e429d438b': 7146.489350919935504196
PHP ERC20 test finished