RESTful Web Services » History » Version 11
chin-yeh, 10/12/2011 06:20 PM
| 1 | 1 | chin-yeh | {{toc}} |
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| 2 | |||
| 3 | h1. RESTful Web Services |
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| 4 | 2 | chin-yeh | |
| 5 | 5 | chin-yeh | h2. System Overview |
| 6 | 1 | chin-yeh | !rest_json.png! |
| 7 | 5 | chin-yeh | |
| 8 | h2. Programming Guide |
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| 9 | |||
| 10 | 6 | chin-yeh | Below is the overview of the *web service layers*: |
| 11 | 1 | chin-yeh | !component.png! |
| 12 | 6 | chin-yeh | _Detailed Description:_ |
| 13 | * *(1)* this is the only integration point for the client |
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| 14 | 7 | chin-yeh | * *(2)* this is the service layer that contains business logic |
| 15 | 6 | chin-yeh | * *(3)* this is the persistence layer |
| 16 | * *(4)* this is the web service client, it could be web application, ajax application, batch program, as long as it can read or parse <code>JSON</code> formatted data |
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| 17 | 1 | chin-yeh | * *(5)* all of the components share the same domain objects |
| 18 | 7 | chin-yeh | |
| 19 | h3. How to add new web service method |
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| 21 | We use the *Shopper* service to demonstrate how to add new web service method into the existing web service. |
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| 22 | |||
| 23 | The *Shopper* service provides: |
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| 24 | * add new shopper |
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| 25 | * update shopper profile |
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| 26 | * retrieve shopper profile based on ID |
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| 28 | 9 | chin-yeh | In short, a new web service method should contain the following components(at least): |
| 29 | 8 | chin-yeh | !mapping.png! |
| 30 | 11 | chin-yeh | * *Controller* - this is the place where the client talk to |
| 31 | * *Services* - this is the business logic of the service |
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| 32 | * *DAOs* - persist or query data from data source, e.g. database |