Holochain / GraphQL Todo Sample

This app was built to test integrating Holochain with the Juniper GraphQL server library for Rust. Conclusion: It works great! No obvious performance loss or excessive memory consumption, even though that would have to be investigated more in detail. Juniper adds only ca 150 K to the final size of compiled DNA. Client development becomes really straightforward when Holochain can be acessed as a GraphQL endpoint.

DNA

The DNA accepts queries on a single endpoint: graphql. See file schema.graphql for available queries/mutations.

Client

The client is built on React / Material UI and uses Apollo Client / Holochain Conductor API to communicate with Holochain.

Requirements

• Having run through holochain RSM installation.
• Run all the steps described in this README.md inside the nix-shell of the holochain core repository.
• Have holochain-run-dna installed globally, and the lair-keystore described in its README as well.

Docs

To generate the Zome API docs:

cd dna
cargo doc --open

Building

cd dna
sh build.sh

Testing

After having built the DNA:

cd dna/tests
npm install
npm test

Run Holochain with DNA

After having built the DNA:

cd dna
sh run.sh

Now holochain will be listening at port 8888;

Restart the command if it fails (flaky holochain start).

Run client

cd client
yarn
yarn start

Contributing

Yes, please! Raise an issue or post a pull request.

License

MIT