# Versa Rust

This crate is the official Versa SDK for Rust.

Versa uses [semantic versioning](https://semver.org/) to ensure the stability of its data model. The current schema version **1.7.0**

You can use this crate broadly in two ways: either just referencing the type bindings, or to implement a custom client in Rust.

You will need to enable either the `client_sender` or `client_receiver` feature to leverage the corresponding client implementation.

## Type Bindings

There are broadly two kinds of types represented in this repository: Protocol Bindings and the Receipt Schema

This repository references the root JSON schema files, at https://github.com/versa-protocol/schema, to generate the Rust bindings for a Versa receipt.

### Protocol Bindings
Protocol Bindings represent the types of requests, responses, and error codes to be expected when developing client implementations according to the specifications of the Versa Protocol. These types are defined in the `protocol` directory.

### Receipt Schema
The Receipt struct represents the receipt and invoice data schemas to be handled  when developing client implementations according to the specifications of the Versa Protocol. These types are defined in `receipt.rs`

## Build Process

This crate uses the [typify](https://crates.io/crates/typify) crate to construct the receipt schema bindings from our json schema

## Features

- `client` Enables Versa client initialization with customer registration APIs
- `client_sender` Enables the Versa sending client implementation
- `client_receiver` Enables the Versa receiving client implementation
- `diesel` Implements diesel traits for MySQL on certain structs (*UNSTABLE:* Use with caution)


## TODO

- [ ] Rust stable crate
- [ ] Expanded diesel database support