Spring Boot: RestTemplate
When you need to access other APIs from the backend of your Spring Boot Application
Suppose you are in the backend code of your Spring Boot application and you want to access some other API, e.g. the https://developer.ucsb.edu API.
What code can you use?
Here is a tutorial on the REST client built into Spring Boot called RestTemplate:
- https://howtodoinjava.com/spring-boot2/resttemplate/spring-restful-client-resttemplate-example/
- https://www.baeldung.com/rest-template
- https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/client/RestTemplate.html
This one covers the Maven dependencies that need to be in the pom.xml
Setting Headers
Many APIs (including, for example, https://developer.ucsb.edu) require setting headers.
For example, https://developer.ucsb.edu requires you to set:
accept: application/json
ucsb-api-version: 1.0
ucsb-api-key: value-specific-to-each-api-user
How do you set these headers? This article explains:
Related topics:
- Spring Boot: —A Java web application framework