Application Binary Interface

An Application Binary Interface (ABI) is a collection of Fragments which specify how to interact with various components of a Contract.

An Interface helps organize Fragments by type as well as provides the functionality required to encode, decode and work with each component.

Most developers will not require this low-level access to encoding and decoding the binary data on the network and will most likely use a Contract which provides a more convenient interface. Some framework, tool developers or developers using advanced techniques may find these classes and utilities useful.

AbiCoder
Creating Instance
Coding Methods
ABI Formats
Human-Readable ABI
Solidity JSON ABI
Solidity Object ABI
Converting Between Formats
Fragments
Formats
Fragment
ConstructorFragment
ErrorFragment
EventFragment
FunctionFragment
ParamType
Interface
Creating Instances
Properties
Formatting
Fragment Access
Signature and Topic Hashes
Encoding Data
Decoding Data
Parsing
Types
Specifying Fragments