Microservices capstone

Table of content:

1. Download
2. Services
3. Set up

Download

git clone https://github.com/xaghoul/microservices-capstone.git

Services

• Catalog service:
  • Holds online store product data in-memory from the product data set above. The application exposes REST API for retrieving products by ‘uniq_id’ and list of products by ‘sku’.
• Inventory service:
  • Holds online store product availability data. Generate random availability status for each product from the product data set above and keep it in an in-memory data structure. The application exposes REST API for retrieving product availability by a list of ‘uniq_id’.
• Product service:
  • Returns product data to end-clients. The application exposes REST API for retrieving available products data by ‘uniq_id’ and by ‘sku’ (multiple products are returned). The REST service makes REST call to catalog application to get product data by ‘uniq_id’ or by ‘sku’, and make a call to the inventory application to get product availability and filter out only available product before returning.
• Eureka service:
  • Registering applications and discovering them for inter-component REST calls.

Tech. stack:

• Java 17
• Spring 2.6
• Spring Data JDBC
• Spring Cloud Stack (Eureka, Openfeign, Resilience4j, Sleuth, Zipkin)
• PostgreSQL
• Docker
• Mapstruct

Set up

Sample dataset

https://www.kaggle.com/PromptCloudHQ/all-jc-penny-products

Load data from dataset [Optional]:

Warning: you should use GNU awk to execute query above

docker cp <path-to-csv-file>/data.csv product_container:/data.csv
awk -vFPAT='([^,]*)|("[^"]+")' -vOFS=, '{print $1, $2}' /data.csv | head -10 | psql -U admin -d product_database -c "\COPY product(uniq_id, sku) FROM STDIN WITH (FORMAT CSV, HEADER"

• Up docker container:

cd <path-to-project>/catalog-app
docker build -f Dockerfile
docker-compose up

• To up zipkin server:

docker run -d -p 9411:9411 openzipkin/zipkin

Todo:

• Set CI
• Pull the data to container with its creation