3 releases (breaking)
new 0.6.0 | Nov 27, 2023 |
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0.5.0 | Oct 27, 2023 |
0.4.1 | Sep 25, 2023 |
0.4.0 |
|
0.0.1 |
|
#2873 in Magic Beans
99 downloads per month
1MB
19K
SLoC
This module provides an SDK for developing Linera applications using Rust.
A Linera application consists of two WebAssembly binaries: a contract and a service.
In both binaries, there should be a shared application state. The state is a type that
represents what the application would like to persist in storage across blocks, and
must implement the Contract
trait in the contract binary and the
Service
trait in the service binary.
The application can select between two storage backends to use. Selecting the storage
backend is done by specifying both the Contract::Storage
and the Service::Storage
associated types.
The SimpleStateStorage
backend stores the application's
state type by serializing it into binary blob. This allows the entire contents of the
state to be persisted and made available to the application when it is executed.
The ViewStateStorage
backend stores the application's
state using the
linera-views
, a
framework that allows loading selected parts of the state. This is useful if the
application's state is large and doesn't need to be loaded in its entirety for every
execution.
The contract binary should use the contract!
macro to export the application's contract
endpoints implemented via the Contract
trait implementation.
The service binary should use the service!
macro to export the application's service
endpoints implemented via the Service
trait implementation.
Examples
The examples
directory contains some example applications.
Contributing
See the CONTRIBUTING file for how to help out.
License
This project is available under the terms of the Apache 2.0 license.
Dependencies
~19–63MB
~1M SLoC