VSC-HAF

VSC HAF indexer and API server. Indexes Hive from the VSC genesis block number for the relevant VSC operations using the HAF app sync algorithm.

This is currently used for L1 operation history and witness metadata on VSC Blocks.

Required Dependencies

• Synced HAF node, ideally using haf_api_node compose

Docker Setup

This assumes HAF is running through haf_api_node.

Clone this repository, then add the following in the .env file in haf_api_node directory:

COMPOSE_FILE="${COMPOSE_FILE}:/path/to/vsc-haf/repo/docker/compose.yml"
VSC_MAINNET_HAF_VERSION=latest

Build the Docker image:

cd /path/to/vsc-haf/repo
./scripts/build_instance.sh

Run the HAF app sync:

docker compose up -d vsc-mainnet-haf-block-processing

Run the PostgREST server:

docker compose up -d vsc-mainnet-haf-postgrest

Setup

PostgreSQL Roles

CREATE ROLE vsc_mainnet WITH LOGIN PASSWORD 'vscpass' CREATEROLE INHERIT IN ROLE hive_applications_group;
CREATE ROLE vsc_user WITH LOGIN INHERIT IN ROLE hive_applications_group;
GRANT CREATE ON DATABASE block_log TO vsc_mainnet;
GRANT vsc_user TO vsc_mainnet;

PostgREST Installation

./scripts/postgrest_install.sh

PostgREST API methods

psql -f src/sql/create_apis.sql block_log

Installation

git clone https://github.com/techcoderx/vsc-haf
cd vsc-haf
npm i

Compile

npm run compile

Sync

npm start

Start PostgREST server

./scripts/postgrest_start.sh postgres://vsc_mainnet:<vsc_app_password>@localhost:5432/block_log <server_port>