nimbus-eth1/waku/README.md

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# Introduction
`wakunode` is a cli application that allows you to run a
[Waku](https://github.com/vacp2p/specs/blob/master/waku.md) enabled node.
The application and Waku specification are still experimental and fully in flux.
Additionally the original Whisper (EIP-627) protocol can also be enabled as can
an experimental Whisper - Waku bridging option.
# How to Build & Run
```bash
make wakunode
./build/wakunode --help
```
# Testing Waku Protocol
One can set up several nodes, get them connected and then instruct them via the
JSON-RPC interface. This can be done via e.g. web3.js, nim-web3 (needs to be
updated) or simply curl your way out.
The JSON-RPC interface is currently the same as the one of Whisper. The only
difference is the addition of broadcasting the topics interest when a filter
with a certain set of topics is subcribed.
Example of a quick test with nim-web3:
```
./build/wakunode --log-level:DEBUG --bootnode-only --nodekey:5dc5381cae54ba3174dc0d46040fe11614d0cc94d41185922585198b4fcef9d3
./build/wakunode --log-level:DEBUG --bootnodes:enode://e5fd642a0f630bbb1e4cd7df629d7b8b019457a9a74f983c0484a045cebb176def86a54185b50bbba6bbf97779173695e92835d63109c23471e6da382f922fdb@0.0.0.0:30303 --rpc --ports-shift:1 --waku-mode:WakuSan
./build/wakunode --log-level:DEBUG --bootnodes:enode://e5fd642a0f630bbb1e4cd7df629d7b8b019457a9a74f983c0484a045cebb176def86a54185b50bbba6bbf97779173695e92835d63109c23471e6da382f922fdb@0.0.0.0:30303 --rpc --ports-shift:2 --waku-mode:WakuChan
./build/quicksim
```
# Using Metrics
Metrics are available for valid envelopes and dropped envelopes.
To compile in an HTTP endpoint for accessing the metrics we need to provide the
`insecure` flag:
```bash
make NIMFLAGS="-d:insecure" wakunode
./build/wakunode --metrics-server
```
Ensure your Prometheus config `prometheus.yml` contains the targets you care about, e.g.:
```
scrape_configs:
- job_name: "waku"
static_configs:
- targets: ['localhost:8008', 'localhost:8009', 'localhost:8010']
```
For visualisation, similar steps can be used as is written down for Nimbus
[here](https://github.com/status-im/nimbus#metric-visualisation).
There is a similar example dashboard that includes visualisation of the
envelopes available at `waku/examples/waku-grafana-dashboard.json`.