Customer Data Service API

GraphQL API for customers, accounts and transactions data.

Built with:

• MongoDB
• Motor
• FastAPI
• Ray Serve
• Strawberry

Project Setup

1. Navigate into the deploy folder from the project root folder (i.e. customer-data-service-api/deploy)

cd deploy

2. Create a .env file with the following terminal command

touch .env

3. Generate an access key with the following terminal command

openssl rand -hex 16

4. Add the following key-value pairs into the .env file

NUM_REPLICAS=2

APP_PORT=8000
RAY_DASHBOARD_PORT=8265

FIXTURES_SEED=0
NUM_CUSTOMERS=100
NUM_ACCOUNTS=300
NUM_TRANSACTIONS=5000

MONGO_HOST=mongo
MONGO_INITDB_ROOT_USERNAME=<your mongodb username>
MONGO_INITDB_ROOT_PASSWORD=<your mongodb password>

CUSTOMERS_DATABASE=customers_data

CUSTOMERS_COLLECTION=customers
ACCOUNTS_COLLECTION=accounts
TRANSACTIONS_COLLECTION=transactions

ACCESS_KEY=<your generated access key>

5. Build docker image and start containers

docker compose up -d --build

6. Navigate to the following urls to access the respective services

URL	Service
http://localhost:8000/graphql	GraphiQL
http://localhost:8000/docs	SwaggerUI
http://localhost:8000/redoc	Redoc
http://localhost:8265/#/overview	Ray dashboard

How To Run Unittests

1. Navigate to project root folder (i.e. customer-data-service-api)

2. Install the necessary dependencies

pip install -r requirements-dev.txt

3. Execute unittests

coverage run -m pytest -v

4. Check test coverage

coverage report -m --fail-under=95