Owasm (o-wah-some) is the standard library for writing and encoding oracle logic to be for deterministic execution on public ledgers that involve fetching data from external sources. Initially developed by Band Protocol, it is currently used as the go-to standard for writing oracle scripts in the Decentralized Data Delivery Network.
A D3N oracle script must allow the host to ask for the external data that the script wants
__prepare) and perform aggregation on data points collected from them
Owasm library consists of two primary modules:
- owasm/core is the backbone of the crate. It defines the methods to encode and decode both
input commands and data outputs, with the
Oracletrait to allow arbitrary data types, once implemented the trait, to be able to get converted to/from external data.
- owasm/ext is the extension library providing convenient ways to write oracle scripts that connect to various public APIs. The library is growing to support more use cases and it open for public contribution!
Owasm Standard Library