DEV Community: abdelkrim boutkhil

avalancheseqlogger

abdelkrim boutkhil — Thu, 06 Oct 2022 09:05:07 +0000

avalancheseqlogger

When you work on custom subnets using avalanche-network-runner, you probably have logs all over the place.
You can have all your logs in one place using centralized logging solutions.

This is a tutorial of how to use Seq.

In this screenshot, you can see the logs from 4 nodes and 2 processes (avalancheGo and SubDotNetVm). You can filter the logs, expand lines to see the structured logs, and there is also a "tail" like mode.

Centralized logging using Seq

I made very minimal modifications to avalanchego (4 lines of code in log/factory.go).

How to run

1) You need to run seq locally.

It's very easy to run seq in your local dev environment using docker.

docker run \
  --name seqtmp \
  -d \
  -e ACCEPT_EULA=Y \
  -v /tmp/seq:/data \
  -p 18080:80 \
  -p 5341:5341 \
  datalust/seq

or if you use podman

podman run \
  --name seqtmp \
  -d \
  -e ACCEPT_EULA=Y \
  -v /tmp/seq:/data:Z \
  -p 18080:80 \
  -p 5341:5341 \
  datalust/seq

2) Clone and build this modified version of avalanchego

In this exemple, we will clone it in /tmp but you can choose any folder you like.

cd /tmp
git clone https://github.com/subdotnet/avalanchego
cd avalanchego
./scripts/build.sh

The compiled binary path is /tmp/avalanchego/build/avalanchego.

3) Install and run avalanche-network-runner

Install using these instructions
You will need two terminals for this :
Start avalanche-network-runner in one terminal

avalanche-network-runner server

Start the nodes in another terminal

avalanche-network-runner control start \
--log-level info \
--number-of-nodes=4 \
--avalanchego-path /tmp/avalanchego/build/avalanchego

4) Watch the logs

Open this url http://localhost:18080/ in your browser

plopchain

abdelkrim boutkhil — Thu, 29 Sep 2022 15:25:36 +0000

Metamask compatible json-rpc server

This project is a proof of concept - It implements the minimum required ethereum rpc apis to be able to accept simple metamask transactions (transfert only).

This will be included in sub.net library.

Prerequisites :

dotnet 7 sdk to build the project
Metamask extension depending on your browser :
- chrome web store
- firefox addons

Clone the subdotnet/metamask-mini-api repository

git clone https://github.com/subdotnet/metamask-mini-api.git

Run the demo :

1) The simple blockchain has 2 prefunded wallets. You can import these private keys in metamask :

616b28bfaa49973faf243ec3296a01675c742533f06c325c78f3d63ceef67963
- public key : 0x145272D2e9828aE2A25913c0643ff0cb486bBAD1
ff067934635e368095f47bfc72942087e07b097d0c541b8f4602dcd255de50fd
- public key : 0x169E72fa2CC6Ec61402dc3C5D3c16ACc4d83BAD2

The public keys end with "BADx".

Install metamask and import prefunded dev addresses :

2) Run the project
Inside the cloned repository, simply execute dotnet run and you should have this output in the console : json-rpc api listening on http://localhost:5035

3) Configure localPLOP network in metamask
Open metamasks settings and go to the network tab.
Add new network with the folowing values :

name : localPLOP
RPC Url : http://localhost:5035/
Chain id : 12345
Currency symbol : PLOP

You should have 42 PLOP in your BAD1 wallet and 1337 PLOP in your BAD2.

Configure custom network in metamask and transfer funds :

subdotnet

abdelkrim boutkhil — Thu, 08 Sep 2022 13:28:16 +0000

Sub.Net

Custom avalanche subnet VMs written in C#

How it all started

This project was originaly my submission for the Avalanche Summit Hackathon in Barcelona.
It was a simple proof of concept showing a dotnet app implementing the avalanche vm interface and running as an avalanche subnet.

Where it's going

The goal is to make it as easy as possible for any .net developper to create a custom blockchain.

The github organisation will contain at least two projects :

sub.net Nuget package
sdn Command line interface published as a dotnet-tool

Introduction

abdelkrim boutkhil — Fri, 12 Aug 2022 10:08:38 +0000

Hello, I'm starting this blog to keep track of my progress.

Starting september, I'll try to post a few times per week over the following few months.

A few themes I'll be bloging about include :

Custom avalanche subnets using .NET
IOT related tutorials - I just purchased two of these boards and I am starting with zero knowledge.
Random stuff

Hope you have fun following me :)