Enhanced Web Services (Design Page)

Background

OpenMRS has an explicit API which has not been cleanly or explicitly exposed through web services.  We have a REST module and SOAP-based module(s) where folks have done work in the area.  We need a clear and explicit strategy for supporting web services.

Requirements

• A single OpenMRS module to support the core web service needs. 
• This module will follow a RESTful approach
• The framework should allow new web service methods to be added with minimal effort
• At this point, we can leave the Java objects with Hibernate magic (all object properties assumed to exist) and convert the data to DTOs from our module.  These DTOs may inform how we transform our API in the future though.
• Requirements for Version 1 of this module

API Service and Object Design

• See Web Services API (Design Page)

Action Plan

1. Web services will be developed as an augmentation to the existing API... that is, we will not rewrite the current API and then expose them as web services... we will write the web services as an independent activity, hoping that they inform the further maintenance and redevelopment of the existing API.
2. Support OAuth or an equivalent authentication scheme
3. An upcoming web services sprint is scheduled. See Development Sprints and the ws sprint page: 2011-05-16 Development Sprint

Interested Parties and Mentors

Ben Wolfe (mentor)

~bmamlin

Darius Jazayeri

Saptarshi Purkayastha

See Also

• Web Services
• SOAP Web Services
• Web Services for OMRS10
• We did an initial prototype of this using the CXF framework before deciding to build RESTful services. That work is at: Webservices.cxf Module

Result / Output

See the Webservices.rest Module for the documentation and final output.