Chapter 4 : BFF Backend For Frontend

Build Backend Spring Java

• Please follow
  • Tutorial 1 : Build Your First App
  • Till Section 2-5-A : Backend Spring Java

And build Backend Spring Java with ALL tables provided in enteprise microservices sample table SQLs.

• After "Build BFF Backend For Frontend" via Common Steps

• Deploy full emapi-BFF backend for all tables.

• Compile and Run project

mvn -version
java -version
cd C:\work\saas-multi\BFF-backend-for-frontend\emapi-BFF
mvn package
java -jar app\dbrest\target\dbrest-1.0-SNAPSHOT.jar

• Verify Run Ok

2024-09-15T13:47:22.603+05:30  INFO 16392 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port 9060 (http) with context path ''
2024-09-15T13:47:22.618+05:30  INFO 16392 --- [           main] c.e.emapi.app.EmDbRestAppRestSpringApp   : Started EmDbRestAppRestSpringApp in 9.482 seconds (process running for 10.009)

• Verify Service APIs

• Open Swagger API explorer and test API endpoints

  • http://127.0.0.1:9060/swagger-ui/index.html

• Verify API endpoint URL in browser shows tenant data
  • http://127.0.0.1:9060/emdbrest/tenant/Query?tenantId=3

[
  {
    "tenantId": 3,
    "customerId": 2,
    "tenantName": "Manipal - Pune Branch",
    "beginDate": "2024-09-14",
    "minOrderQuantity": 10,
    "customizationRequired": 1,
    "custMicrosvcType": "synchronous-webclient",
    "customizationService": "tenant-2-validation-service",
    "customizationPayload": "order_data"
  }
]

• Use this backend as "BFF Backend" For Frontend Flutter Mobile App.

info

• Microservices - BFF Backend For Frontend building is complete.