Number of APIs: 5
1. get patient
GET http://localhost:9000/patient/history/618fc768c440bf04ac6b41d9
POST http://localhost:9000/visit/new/62123b178c152b6b892c217d
GET http://localhost:9000/patient/fetch/621338dd75527f32d6cbe711
PUT http://localhost:9000/patient/update/6186659a4d9de917f0181762
5. add patient
POST http://localhost:9000/patient/add/61878913ff7e3b31aeb72210