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I'm trying to build a RESTful API using Spring MVC. I'm shooting for clean and manageable code where the package structure follows the url structure.
So here is what I've got:
// com.test.api.library
@RequestMapping("/library/{libraryId}")
public Library getLibrary(@PathVariable long libraryId) {
return service.getLibraryById(libraryId);
}
// com.test.api.library.book
@RequestMapping("/library/{libraryId}/book/{bookId}")
public Book getBook(@PathVariable long libraryId, @PathVariable long bookId) {
Library library service.getLibraryById(libraryId);
return library.getBookById(bookId);
}
While this works, I find it messy and error-prone to have to repeat "/library/{libraryId}" in all inherited @RequestMappings, /library is likely to be to root of a big part of the API and it should be written once and reused instead of written everywhere.
I would like to rewrite the book-class to something like this:
// com.test.api.library.book
@RequestMapping("/book/{bookId}")
public Book getBook(@PathVariable long bookId) {
// long libraryId magically given to me from the library-class's getLibrary()
Library library service.getLibraryById(libraryId);
return library.getBookById(bookId);
}
Is there any way Spring can help me here? It is acceptable for me to use normal java inheritance, spring annotation or anything else that helps me to not write "/library/{libraryId}" as a part of every url I ever write.