Tangle-Subxt

Rust interface to interact with tangle node via RPC

Downloading metadata from a Substrate node

Use the subxt-cli tool to download the metadata for your target runtime from a node.

1. Install:

cargo install subxt-cli@0.39.0 --force

2. To Save the metadata of tangle: Run the release build of the tangle node, then on another terminal run:

subxt metadata -f bytes > ./metadata/tangle-testnet-runtime.scale

3. Generating the subxt code from the metadata:

subxt codegen --file metadata/tangle-testnet-runtime.scale \
    --crate "::subxt_core" \
    --derive Clone \
    --derive Eq \
    --derive PartialEq \
    --attributes-for-type tangle_primitives::services::field::Field='#[codec(dumb_trait_bound)]' \
    --derive-for-type tangle_primitives::services::service::ServiceBlueprint=serde::Serialize,recursive \
    --derive-for-type tangle_primitives::services::service::ServiceBlueprint=serde::Deserialize,recursive | rustfmt --edition=2021 --emit=stdout > src/tangle_testnet_runtime.rs

Local Testing

You can run following tests to trigger Job pallet events for local development.

1. Run Local Tangle network

./scripts/run-standalone-local.sh --clean

2. Run Test

cargo test test_job_submission_event