# Example Bank
Developers can set up and run the G2P Bridge Example Bank Simulator on their local machines. This guide outlines the steps to install the same on a **Linux-based** laptop or desktop.
## Prerequisites
* Python3
* Git
* PostgreSQL
* Redis
* Celery
## Installation of Example Bank Simulator
#### 1. Update system packages
* Log in to your Linux server using SSH and update the package list and upgrade the existing packages:
```bash
sudo apt update
sudo apt upgrade -y
```
#### 2. Install dependencies
```bash
sudo apt install -y python3-pip python3-dev build-essential
```
3\. Install and configure PostgreSQL
* G2P Bridge requires PostgreSQL as the database engine. Install PostgreSQL (if not already installed) and create a new database user for G2P Bridge.
```bash
sudo apt install -y postgresql
sudo su - postgres
CREATE ROLE bankuser WITH LOGIN NOSUPERUSER CREATEDB CREATEROLE INHERIT REPLICATION CONNECTION LIMIT -1 PASSWORD 'password';
CREATE DATABASE bankdb WITH OWNER = bankuser CONNECTION LIMIT = -1;
exit
```
4\. Clone the G2P Bridge Repository
* Clone the `openg2p-g2p-bridge` repository to your local machine.
```bash
git clone https://github.com/OpenG2P/openg2p-g2p-bridge-example-bank
```
#### 5. Install Python Libraries and G2P Bridge Components
{% tabs %}
{% tab title="Example Bank API" %}
**Setting up the Bridge API**
* Make a new Python virtual environment.
```bash
cd openg2p-g2p-bridge/openg2p-g2p-bridge-example-bank-api
python3 -m venv venv
```
* Activate the virtual environment.
```bash
source venv/bin/activate
```
* Use `pip` to install the required Python packages, including the core libraries for the G2P Bridge.
```bash
python3 -m pip install \
openg2p-fastapi-common==1.1.2 \
openg2p-fastapi-auth==1.1.2 \
openg2p-g2p-bridge-example-bank-models==1.0.0 \
openg2p-g2p-bridge-example-bank-api==1.0.0
```
* Create a .env file
```
EXAMPLE_BANK_DB_HOSTNAME='localhost'
EXAMPLE_BANK_DB_DBNAME='bankdb'
EXAMPLE_BANK_DB_USERNAME='bankuser'
EXAMPLE_BANK_DB_PASSWORD='password'
EXAMPLE_BANK_CELERY_BROKER_URL='redis://127.0.0.1:6379/0'
EXAMPLE_BANK_CELERY_BACKEND_URL='redis://127.0.0.1:6379/0'
```
* Migrate the database schema
```bash
python3 main.py migrate;
```
* Run the API server on `127.0.0.1:8000`
```bash
gunicorn "main:app" --workers 1 --worker-class uvicorn.workers.UvicornWorker --bind 127.0.0.1:8000
```
{% endtab %}
{% tab title="Example Bank Celery" %}
**Setting up the Example Bank Celery**
* Make a new Python virtual environment.
```bash
cd openg2p-g2p-bridge/openg2p-g2p-bridge-example-bank-celery
python3 -m venv venv
```
* Activate the virtual environment.
```bash
source venv/bin/activate
```
* Use `pip` to install the required Python packages, including the core libraries for the G2P Bridge.
```bash
python3 -m pip install \
openg2p-fastapi-common==1.1.2 \
openg2p-fastapi-auth==1.1.2 \
openg2p-g2p-bridge-example-bank-models==1.0.0 \
openg2p-g2p-bridge-example-bank-celery==1.0.0
```
* Run redis-server (if not already started)
```
bash sudo systemctl start redis
```
* Create a .env file
```
EXAMPLE_BANK_CELERY_DB_HOSTNAME='localhost'
EXAMPLE_BANK_CELERY_DB_DBNAME='bankdb'
EXAMPLE_BANK_CELERY_DB_USERNAME='bankuser'
EXAMPLE_BANK_CELERY_DB_PASSWORD='password'
EXAMPLE_BANK_CELERY_CELERY_BROKER_URL='redis://127.0.0.1:6379/0'
EXAMPLE_BANK_CELERY_CELERY_BACKEND_URL='redis://127.0.0.1:6379/0'
EXAMPLE_BANK_CELERY_MT940_STATEMENT_CALLBACK_URL='http://openg2p-g2p-bridge-api/upload_mt940'
```
* Run the celery beat and worker
```bash
celery -A main.celery_app worker --loglevel=info --beat & \
celery -A main.celery_app worker --loglevel=info -Q g2p_bridge_celery_worker_tasks
```
{% endtab %}
{% endtabs %}
---
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