Inject traffic

In order to inject traffic into the network, we can use the REST API of each nwaku node. We have a simple dockerized script in rest-traffic, that can perform this task. In the following command we run a docker container, connected to the waku-simulator network. This script will inject a message every delay-seconds with a size of msg-size-kbytes into a given pubsub-topic. Note that in multiple-nodes you can configure the nodes that will publish messages, where [1..5] will publish to node 1, 2, 3, 4, 5. You can publish to a single node (e.g. node 1) by using [1..1].

docker run -it --network waku-simulator_simulation alrevuelta/rest-traffic:d936446 \
--delay-seconds=10 \
--msg-size-kbytes=5 \
--pubsub-topic=/waku/2/rs/66/0 \
--multiple-nodes="http://waku-simulator-nwaku-[1..5]:8645"

Note that the REST API doesn’t allow to publish messages exceeding the rate limit, so this tool can’t be used to test beyond the rate limits.

🎯Goals:

• Test message publishing via the REST API and that they are valid across the network.
• Test the network under different message load: rates and sizes.

👀Observability:

• Check the logs of each nwaku node, verifying the messages are correctly received via the API and forwarded to other nodes.
• Check grafana dashboard localhost:3001 ”RLN Valid Messages Total” increases as expected.