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Restify Your Apps

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befreax

The document discusses RESTifying apps by exposing resources through a representational state transfer (REST) interface using the pyOCCI module. Key points include: - The pyOCCI module allows exposing application resources via CRUD operations and actions to provide a RESTful service to customers. - Resources represent the core entities or capabilities that can be created, retrieved, updated, deleted, linked, and have actions performed on through the REST interface. - pyOCCI handles the underlying HTTP handling, content negotiation, and mapping resources to the representational state transfer model, freeing developers to focus on implementing CRUD and action routines for their resources.

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RESTify your AppsThe pyOCCI moduleThijs MetschSenior Software Engineer Grid and Cloud Technologytmetsch@platform.com
To RESTify your AppsorHow to Provide a Service to your customers{whatever}-Layer
How? / What? (Resource-aaS)Create, Retrieve, Update and Delete Resources Your AppWhat is a Resource?ResourcesPerform Actions and Link ResourcesExpose Resources across Boundaries
What is a Resource?The URI (Resource representation)http://example.com/foo/bar can be:
Pool of ResourcesWhat do you need?ResourceHow to identify, query, list, handle, link, group, perform actions and tag resources?ResourceResourceResourceResourceResourceResource
What it is 1It’s Capabilities 2What it belongs to (grouping) 3What Categories tells youabout a Resource:
HTTPThe only thing you need to do…Pool of ResourcesResourcepyOCCImoduleResourceResourceResourceHTTPResourceResourceResourceThe ‘glue’You ApppyREST takes care of this
You NEED to:Map you Resources to REST-Resources by implementing:Create, Retrieve, Update, Delete and Action routines
You GET for free:A interface to your Resources, a way to identify a resources, manage resources, query capabilities, external RESTful interface, an integration point, a (Cloud) Service, Beer,…pyREST module deals with all the hard issues:HTTP, Content-Types, Security, Query interface, Renderings etc.
Flexible/Modular/Clear SeparationA Look inside of pyOCCIBackendHTTP HeaderRenderingYour AppBackendHTTP text/uri-list RenderingOCCIModel*BackendHTTPHandlingHTTP text/plain RenderingBackendHandles HTTP verbs (POST,PUT,DELETE,GET) & stuff (REST, Security, etc.)HTTP text/html Rendering…Backend defines categories it can handle(Automatic selection)Map HTTP Data to OCCI Model(Automatic selection)* http://www.occi-wg.org
Examples (1)Query int – shows what this Service can handle
Examples (2)Create New…What is it?See Query int.Actions & LinksAttributes
Examples (3)Basically any Programming Language (Integration)CLI
?The pyOCCI module is part of pySSF: http://pyssf.sf.netVersion: 0.2.19(This is pre- (Do not try this at home) -Alpha Software - also in pypi)LGPL Licensed© Platform Computing
BACKUP
Documentation
CI (Testing, etc…)
Code Quality
Work In Progress

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Restify Your Apps

  • 1. RESTify your AppsThe pyOCCI moduleThijs MetschSenior Software Engineer Grid and Cloud Technologytmetsch@platform.com
  • 2. To RESTify your AppsorHow to Provide a Service to your customers{whatever}-Layer
  • 3. How? / What? (Resource-aaS)Create, Retrieve, Update and Delete Resources Your AppWhat is a Resource?ResourcesPerform Actions and Link ResourcesExpose Resources across Boundaries
  • 4. What is a Resource?The URI (Resource representation)http://example.com/foo/bar can be:
  • 5. Pool of ResourcesWhat do you need?ResourceHow to identify, query, list, handle, link, group, perform actions and tag resources?ResourceResourceResourceResourceResourceResource
  • 6. What it is 1It’s Capabilities 2What it belongs to (grouping) 3What Categories tells youabout a Resource:
  • 7. HTTPThe only thing you need to do…Pool of ResourcesResourcepyOCCImoduleResourceResourceResourceHTTPResourceResourceResourceThe ‘glue’You ApppyREST takes care of this
  • 8. You NEED to:Map you Resources to REST-Resources by implementing:Create, Retrieve, Update, Delete and Action routines
  • 9. You GET for free:A interface to your Resources, a way to identify a resources, manage resources, query capabilities, external RESTful interface, an integration point, a (Cloud) Service, Beer,…pyREST module deals with all the hard issues:HTTP, Content-Types, Security, Query interface, Renderings etc.
  • 10. Flexible/Modular/Clear SeparationA Look inside of pyOCCIBackendHTTP HeaderRenderingYour AppBackendHTTP text/uri-list RenderingOCCIModel*BackendHTTPHandlingHTTP text/plain RenderingBackendHandles HTTP verbs (POST,PUT,DELETE,GET) & stuff (REST, Security, etc.)HTTP text/html Rendering…Backend defines categories it can handle(Automatic selection)Map HTTP Data to OCCI Model(Automatic selection)* http://www.occi-wg.org
  • 11. Examples (1)Query int – shows what this Service can handle
  • 12. Examples (2)Create New…What is it?See Query int.Actions & LinksAttributes
  • 13. Examples (3)Basically any Programming Language (Integration)CLI
  • 14. ?The pyOCCI module is part of pySSF: http://pyssf.sf.netVersion: 0.2.19(This is pre- (Do not try this at home) -Alpha Software - also in pypi)LGPL Licensed© Platform Computing