APIs, databases and a working project
Part of the Technology & Software Engineering learning and recruiting path. Read the explanation and example, attempt the task, then open the self-check.
Know what to learn for your role.
From foundations to a work sample, with sources, tasks and self-checks.
Understand
Define API requests, responses, permissions and errors. Use keys and constraints for consistency. Verify the full flow from input to persistence and reread, including concurrent and repeated requests.
Worked example
A single-booking slot requires server checks and data constraints; frontend validation alone cannot handle concurrent requests.
Examples and numbers are educational, not employer questions, live market data or hiring criteria.
Practise and keep your output
Build a booking or task app with create/read, permissions, conflict handling and setup instructions.
Keep inputs and sources, assumptions, steps, results and uncertainties in your own document. Attempt independently before checking below.
After attempting: answer and self-check
Persist across refresh, enforce ownership and explain repeated/concurrent request behaviour.
Official channels and further reading
Pathline authors these starter lessons. These supplementary field links do not imply provider review or endorsement. Confirm Hong Kong availability and eligibility separately.
- Microsoft · Early in profession ↗
Global student programmes; filter location, function and eligibility.
- JPMorganChase · Students and graduates ↗
Global programme directory. Filter by function, location and intake.
- Python · Official tutorial ↗
Programming-language reference. Complete this line’s basic exercises alongside it.