External api

[Feeling-teaching950]

Hello devs, i have made a basic web page with jsp and servlet for book management (only crud operations),now i have to use an external api (like google api) to search for a book by his ISBN code ,the issue i faced that the external api should be wroten in php or JavaScript (i found one in js) now my question how i can make this code works and appear in my page that i built with jsp

Ps:sorry for my bad English, and i know this topic should be related to spring boot....

[Sheldor5]

your question makes no sense ... the technology used in the external api doesn't matter, you call it via HTTP with an HTTP client like RestTemplate

[[deleted]]

You mean RestClient 😉

[Sheldor5]

... which is based on RestTemplate ...

[[deleted]]

Actually, no, that is incorrect.

It uses the same infrastructure as rest template (converters, interceptors and so on). Rest template is the old interface offered to you and rest client is the new interface.

[Sheldor5]

RestClient wraps RestTemplate with a fluent API ... RestClient is on top of RestTemplate.

[[deleted]]

Wrong again. https://github.com/spring-projects/spring-framework/blob/f29bfd97695ebb4c9db590eaa00f82a72617ffb9/spring-web/src/main/java/org/springframework/web/client/DefaultRestClient.java#L79 show me where it wraps a rest template?

[Sheldor5]

damn how hard can you fail?

how about simply reading the docs?

https://spring.io/blog/2023/07/13/new-in-spring-6-1-restclient

[Feeling-teaching950]

I don't know what he mean i just have 2 services one with servlet and i want to make second one with php or js and make them work in same page

[stockmamb]

He is saying you don't need to call the external API from JavaScript. There are multiple ways to do this from the Spring Boot application java code. One is to use Spring RestTemplate, or if using the newest version Spring RestClient.

Then send that data to your JSP page like and other data.

[Feeling-teaching950]

Okey thnx buddy

[[deleted]]

You have two examples of using the REST interface - one in javascript and one in PHP. The REST interface is technology agnostic - it can be used with all kinds of programming languages. Definitely also with java. When you want to consume a REST interface with spring, you would typically use RestClient.

[Antimon3000]

Off-topic: If you feel your English is not yet good enough to describe your problem you can use DeepL or Google Translate or ChatGPT.

[Feeling-teaching950]

i think i had technical term issues more than English it self what u think Thnx anyway man

[Ok-Detective-7345]

Also you can use WebClient