Hospital Appointment Booking API
Asked at Oracle · Coding Questions · Difficulty: Medium · Last asked Feb 4, 2026
Design and implement an appointment-booking REST API for a hospital with 1,000 doctors, each working 9 AM-5 PM in 15-minute slots. The API books the first available slot for a given doctor on a given date and must maintain state across calls. Asked as a coding-design hybrid round in an OCI virtual onsite.
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