Service Logger

The service logger is an internal Holo component that measures and logs the hosting carried out by Hosts, on behalf of Clients, then generates a proof of service invoice via bridge to Holofuel.

Clients that want to have some hosting done will log a Request. Then, when the Hosts finished doing a block of hosting, they will require a signature from the Clients, to generate the signed service log. After that the Service Logger will count the number of unpaid logs until its value hits a threshold configured in the Hosting App, to then trigger the generation of an Invoice, via bridge to Holofuel

How to run test?

Service Logger is best and most reliably built under a nix-shell environment. Checkout the version of holochain-rust consistent with the version specified in zomes/service/code/Cargo.toml, eg. git checkout v0.0.18-alpha1. Then run nix-shell. When you get a prompt, cd into your clone of servicelogger, and run the following commands:

Using Make

make test

Manually

First, install testing dependencies:

cd ./test/ & npm install

Then:

hc test

Note since this repo is in dev mode. If you want to test using the holochain-rust develop branch, first edit test/index.js to use a "relative" version of nodejs_conductor; you would have to pull the holochain-rust repo in the same folder you pull this repo into. This is required to run the hc test with the latest nodejs_conductor in the holochain-rust.

Bridging Tests

Requires the HoloFuel, Holo-Hosting-App and service logger DNAs, built and/or copied to the local service logger dist/ directory.

• Build holofuel DNA and copy holofuel/dist/holofuel.dna.json to dist/holofuel.dna.json
• Build Holo-Hosting-App and copy ../Holo-Hosting-App/dna-src/dist/Holo-Hosting-App.dna.json to dist/holohosting.dna.json

Run the Bridging tests with:

hc test -t test/bridging.js

How to build DNA?

hc package

.dna.json result will be in ./dist.

Documentaion:

• Service Logger RFC (in-progress)

Consistent signatures using WASM key manager

const crypto = require('crypto');
const JSONserialize = require('json-stable-stringify');

const { Codec, KeyManager } = require("@holo-host/chaperone");

const utf8 = new TextEncoder();

const keys = new KeyManager( crypto.randomBytes( 32 ) );
const client_agent_id = Codec.AgentId.encode( keys.publicKey() );
const payload = { "key": "value" };

const sig_bytes = keys.sign( utf8.encode(JSONserialize(payload)) );
const b64_sig = Codec.Signature.encode( sig_bytes );

Built With

• Holochain-rust
• HDK