Neutron Cosmwasm SDK

This repository contains the source code of Neutron Cosmwasm SDK for interacting with Neutron blockchain

Overview

Neutron SDK

The Neutron SDK is contained inside packages folder and consists of the following subpackages:

Package	Reference	Description
Neutron Interchain Queries	https://github.com/neutron-org/neutron-sdk/tree/main/packages/neutron-sdk/src/interchain_queries	Queries, messages and helper methods for interacting with Neutron Interchain Queries Module
Neutron Interchain Transactions	https://github.com/neutron-org/neutron-sdk/tree/main/packages/neutron-sdk/src/interchain_txs	Queries, messages and helper methods for interacting with Neutron Interchain Transactions Module
Neutron Bindings	https://github.com/neutron-org/neutron-sdk/tree/main/packages/neutron-sdk/src/bindings	Structures and helper methods for interacting with Neutron blockchain
Neutron Sudo	https://github.com/neutron-org/neutron-sdk/tree/main/packages/neutron-sdk/src/sudo	Structures for Sudo Contract callbacks from Neutron blockchain
Neutron Errors	https://github.com/neutron-org/neutron-sdk/tree/main/packages/neutron-sdk/src/errors	Structures and helpers for Neutron specific error and result types
Neutron Stargate	https://github.com/neutron-org/neutron-sdk/tree/main/packages/neutron-sdk/src/stargate	Structures and helpers for interacting with Neutron via Stargate

Example Contracts

We provide sample contracts that either implement or consume these specifications to both provide examples, and provide a basis for code you can extend for more custom contacts, without worrying about reinventing the wheel each time:

Contract	Reference	Description
Neutron Interchain Queries Example Contract	https://github.com/neutron-org/neutron-sdk/tree/main/contracts/neutron_interchain_queries	The contract shows how to properly work with Interchain Queries Module using Interchain Queries SDK package via CosmWasm smart-contract.
Neutron Interchain Transactions Example Contract	https://github.com/neutron-org/neutron-sdk/tree/main/contracts/neutron_interchain_txs	The contract shows how to properly work with Neutron Interchain Transactions Module using Interchain Transactions SDK package via CosmWasm smart-contract.
Neutron IBC Transfer Example Contract	https://github.com/neutron-org/neutron-sdk/tree/main/contracts/ibc_transfer	The contract shows how to properly work with Neutron Sudo Package to handle a callback from IBC transfer.

Development

Environment Setup

• Rust v1.73.0+
• wasm32-unknown-unknown target
• Docker

1. Install rustup via https://rustup.rs/

2. Run the following:

rustup default stable
rustup target add wasm32-unknown-unknown

3. Make sure Docker is installed

Unit Tests

Each contract contains Rust unit tests embedded within the contract source directories. You can run:

make test

Generating schema

make schema

Generating proto files

Neutron proto files represented as generated Rust code is a part of the Neutron SDK. In case Neutron proto files have changed there's a command for Rust generated code rebuild. To rebuild the files, run the following command using the respective Neutron revision (tag) as an argument, e.g.:

make build-proto revision=v3.0.3

Production

For production builds, run the following:

make build

This performs several optimizations which can significantly reduce the final size of the contract binaries, which will be available inside the artifacts/ directory.

Documentation

Check out our documentation at https://docs.neutron.org.

License

Copyright 2022 Neutron

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.