The current ckb-graphql-server package has shown its age, as the data stored in CKB grow bigger, ckb-graphql-server is getting slower and slower, which might not be enough to cope with latest performance requirements. It might be better to just leverage on CKB's own RPC to build a new GraphQL layer.

GraphQL server for CKB. For maximum performance, it works by reading from CKB's data directory directly.

The GraphQL server currently works with current CKB 0.25, notice since it reads directly into CKB's internal storage, compatibility issues might be encountered when CKB optimized its internal storage format. We will try our best to make sure we upgrade this project together with mainnet CKB versions.

First, a running CKB instance is needed. Since this project directly reads data from CKB's rocksdb instance, we need to keep track of the running directory of CKB. For example, if CKB is started via ckb run -C /foo/bar, the directory we will need here is /foo/bar. Please take a look at your CKB running configuration, and keep a note of the running directory in our environment.

Then we can start CKB's GraphQL server:

$ git clone https://github.com/xxuejie/ckb-graphql-server
$ cd ckb-graphql-server
$ cargo build --release
$ target/release/ckb-graphql-server --db /foo/bar/data/db --listen 0.0.0.0:3000

Again, if you are running CKB in a different directory than /foo/bar, you need to modify the command accordingly.

Now if you go to http://localhost:3000, you should have a GraphQL server to play with.