Proposal

The proposal to fund this project is now funded. Many thanks to everyone who voted for it.

You can vote for it here:

I missed last week's update as I was busy setting up the dev environment for the new server and documenting how to set up HAF Plug & Play from scratch.

This update's pull request: https://github.com/imwatsi/haf-plug-play/pull/2

I have WIP code for the following:

follow plug endpoint expansion
community plug functions and endpoints
subscription logic for apps using HAF Plug & Play

I will push code when it is stable, and include it in the next update.

I also added detailed setup instructions to the README, as seen below:

Install dependencies

apt-get install -y \
    libboost-chrono-dev \
    libboost-context-dev \
    libboost-coroutine-dev \
    libboost-date-time-dev \
    libboost-filesystem-dev \
    libboost-iostreams-dev \
    libboost-locale-dev \
    libboost-program-options-dev \
    libboost-serialization-dev \
    libboost-signals-dev \
    libboost-system-dev \
    libboost-test-dev \
    libboost-thread-dev

apt install python3 python3-pip postgresql libpq-dev apt install postgresql-server-dev-all

# Setup PostgreSQL

Once you have your PostgreSQL installation, setup the username and password access. For example:

```
sudo -u postgres psql template1
ALTER USER postgres with encrypted password 'your_password';
\q          #quit psql
sudo systemctl restart postgresql.service

Edit the file /etc/postgresql/12/main/pg_hba.conf to use MD5 authentication: local all postgres md5

After that, create the haf database:

psql -U postgres
CREATE DATABASE haf;

Give PostgreSQL permissions

CREATE ROLE hived LOGIN PASSWORD 'hivedpass' INHERIT IN ROLE hived_group;
CREATE ROLE application LOGIN PASSWORD 'applicationpass' INHERIT IN ROLE hive_applications_group;

Build hived and configure the node

git clone https://gitlab.syncad.com/hive/hive.git
pushd hive
git checkout develop
git submodule update --init --recursive
popd
mkdir build_haf_sql_serializer
pushd build_haf_sql_serializer
cmake -DCMAKE_BUILD_TYPE=Release ../hive
make -j${nproc}
pushd programs/hived
./hived -d data --dump-config

Install the fork_manager

git clone https://gitlab.syncad.com/hive/psql_tools.git
cd psql_tools
cmake .
make extension.hive_fork_manager
make install

Add sql_serializer to params to hived config

nano data/config.ini

# ADD THE FOLLOWING:

plugin = sql_serializer
psql-url = dbname=haf user=postgres password=your_password hostaddr=127.0.0.1 port=5432

Install HAF Plug & Play

git clone https://github.com/imwatsi/haf-plug-play.git
cd haf-plug-play
pip3 install -e .

Run the HAF Plug & Play setup script

cd haf_plug_play/database
python3 haf_sync.py

Donwload block log for replay

cd build_haf_sql_serializer/programs/hived/data
mkdir -p blockchain
wget -O blockchain/block_log https://gtg.openhive.network/get/blockchain/block_log

Run hived and sync to a specific block height

cd build_haf_sql_serializer/programs/hived
./hived -d data --replay-blockchain --stop-replay-at-block 5000000 --exit-after-replay

Next week's scope

In the coming week, I plan to work on expanding the endpoints for the follow plug, finish up the functions for the community plug as well as the subscription logic for apps using HAF Plug & Play.

Support proposal 190 on PeakD
Support proposal 190 on HiveSigner
I run a Hive witness node:
- Witness name: imwatsi
- HiveSigner

HAF Plug & Play Development Update #3