Order service is services which has a APIs to create , update, update order status of an order.
- Create Order: Lets the user to create a order with help of product and customer details
- Update Order Status: Lets the user to update the status of the order
- Update Order product : Lets the user to update the product id
- Observality : Added api hit metric, elapsed time of APIs metric
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Grafana Screenshot
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APIs Hit metrics Screenshots
- https://gabrieltanner.org/blog/collecting-prometheus-metrics-in-golang/
- https://promlabs.com/promql-cheat-sheet/
http://localhost:8080/v1/order/create
{ "customer_id": 1, "products": [ { "id": 1 }, { "id": 2 } ] }
Response
{
"OrderID": 3,
"message": "Order Created Successfully!",
"status": 201
}
http://localhost:8080/v1/order/7
Response
{ "message": "Order Details Fetched Successfully!", "order": [ { "ID": 1, "OrderID": 1, "ProductID": 1, "CustomerID": 1, "CreatedAt": "2023-07-02T19:57:49.276005+05:30", "UpdatedAt": "2023-07-02T19:57:49.276005+05:30" }, { "ID": 2, "OrderID": 1, "ProductID": 2, "CustomerID": 1, "CreatedAt": "2023-07-02T19:57:49.278145+05:30", "UpdatedAt": "2023-07-02T19:57:49.278146+05:30" } ], "status": 200 }
http://localhost:8080/v1/order/1
{ "status":"DELIEVERED" }
Response
{ "message": "Order Updated Successfully!", "status": 200 }
http://localhost:8080/v1/order/updateOrderProducts/7
{ "customer_id": 1, "products": [ { "id": 3 }, { "id": 4 } ] }
Response
{ "message": "Order Updated Successfully!", "status": 200 }
- Update Order products API : User should be allowed to update product details once order status is in SHIPPED status
- Add delete api
- Add any update to created order status in kafka topic
- Use Grafana dashboard to visualize all the prometheus metrics
- For uptime metric : uptime > 0
- For Api counter metric : rate(<api_name>[$__rate_interval])
- For elapse time metric : order_service_apis_elapsed_time with label as apiname
- Add a docker compose file
To start postgresql
psql -h localhost -p <port-number> -U shriyavimalsundriyal
To list databases
\l
To connect to new database
\c <database name>
To list of tables in database
\d
To list the property / attribute of table
\d <table-name>