In this chapter, we developed basic word-related functions based on RESTful:

• Create Word: Store words and related information into the database via POST requests;
• Read Word: Retrieve words and detailed information through GET requests, supporting pagination queries and word fuzzy queries;
• Update Word: Update existing word information via PUT requests;
• Delete Word: Delete specific words using DELETE requests.

Learned some advanced techniques:

• Managing status using enumeration values;
• Layered data model concept to limit direct data transfer;
• Composite indexes;
• Pagination queries;
• Fuzzy queries.