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@synapsecns/contracts-core contain the Solidity contracts used within the Synapse Interchain Network messaging system.


These contracts can be installed with:

npm i @synapsecns/contracts-core

Please refer to our usage guide or examples

Directory Structure

├── contracts: Contains core contracts
│   ├── base: Base contracts of the protocol
│   ├── client: Client contracts for callers of the messaging system.
│   ├── events: Event types
│   ├── hubs: Hubs
│   ├── inbox: Inbox contracts
│   ├── interfaces: Interfaces
│   ├── libs: Library contracts
│   ├── Manager: Manager contracts
├── deployments: Non-devnet deployments of the contracts
├── lib: Git-module based dependencies
├── script: Scripts for deploying + interacting with contracts
├── test: Test contracts

Running a devnet

To run a devnet, you can run make devnet-up and make devnet-deploy from this directory. This will start a local devnet and deploy the contracts to it. RPC endpoints for debugging etc will be availabe at http://localhost:9001/rpc/[chain_id].

By default, the PingPongClient.sol is deployed, so you can interact with it with cast. For instance, to send a ping from chain 42 to chain 44:

cast send 0x521F44132489CDD54c9ceC8167CfC377CbAEa351 --rpc-url http://localhost:9001/rpc/42 --private-key 0x526db1890baf94e82162f17f25ad769eb7f981272d8d99c527ea1af443c2d0cc "doPing(uint32,address,uint16)" 44 0x521F44132489CDD54c9ceC8167CfC377CbAEa351 1

Now, to make sure it work, you can pull up scribe by going to http://localhost:9002/graphiql and querying the logs for chain 44:


  logs(chain_id: 44, page: 1){

If everything went well, you will see topic 0x0a72872b9cfe43d6c13b13553f28d4879e427f3b456545649fd0761fdcbe0311 in the logs, which is the topic for the PingPongClient's Pong event.

graphql screenshot