August 2018
Intermediate to advanced
404 pages
11h 19m
English
Content preview from Ethereum Cookbook
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How to do it…
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Every ERC20 contract will have the same ABI structure, which is predefined by the standard. Create an application that makes use of this ABI to support all the tokens created using the standard.
- A basic ERC20 token specification will have the following functions:
- totalSupply(): Returns uint
- balanceOf(address tokenOwner): Returns uint balance
- allowance(address tokenOwner, address spender): Returns remaining uint
- transfer(address to, uint tokens): Returns bool success
- approve(address spender, uint tokens): Returns bool success
- transferFrom(address from, address to, uint tokens): Returns bool success
- From your application, create an instance using the ABI and address of the token contract. This will allow you to interact ...
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