Soap vs rest
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SOAP is a protocol for exchanging structured information in a decentralized, distributed environment using XML. It uses RPC and HTTP. REST focuses on accessing named resources through a consistent interface and represents resource state. SOAP is better for enterprise security and transactions while REST is lighter weight and less complex, using standard HTTP and supporting JSON. The choice depends on needs - SOAP for banking apps, REST for simpler web services.
Soap vs rest
- 1. SOAP vs. REST SOAP to wash and REST to relax Antonio Loureiro Severien FIB-UPC
- 2. What is SOAP? SOAP: Simple Object Access Protocol is a protocol for exchange of structured information on a decentralized and distributed platform using XML (eXtensible Markup Language) Works mainly with RPC (Remote Procedure Call) and HTTP (HyperText Transfer Protocol) HTTP makes SOAP go around
- 3. SOAP structure 3 parts message: Envelope, Header, Body POST /InStock HTTP/1.1 ENVELOPE Host: www.example.org Content-Type: application/soap+xml; charset=utf-8 HTT HEADER Content-Length: 299 SOAPAction: "http://www.w3.org/2003/05/soap-envelope" P <?xml version="1.0"?> <soap:Envelope BODY xmlns:soap="http://www.w3.org/2003/05/soap-envelope"> <soap:Header> </soap:Header> <soap:Body> <m:GetStockPrice xmlns:m="http://www.example.org/stock"> FAULT <m:StockName>IBM</m:StockName> </m:GetStockPrice> </soap:Body> </soap:Envelope>
- 4. Simple Example REQUEST POST /InStock HTTP/1.1 Host: www.example.org Content-Type: application/soap+xml; charset=utf-8 Content-Length: nnn <?xml version="1.0"?> <soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope" soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding"> <soap:Body xmlns:m="http://www.example.org/stock"> <m:GetStockPrice> <m:StockName>IBM</m:StockName> </m:GetStockPrice> </soap:Body> </soap:Envelope>
- 5. Simple Example RESPONSE HTTP/1.1 200 OK Content-Type: application/soap+xml; charset=utf-8 Content-Length: nnn <?xml version="1.0"?> <soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope" soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding"> <soap:Body xmlns:m="http://www.example.org/stock"> <m:GetStockPriceResponse> <m:Price>34.5</m:Price> </m:GetStockPriceResponse> </soap:Body> </soap:Envelope>
- 6. SOAP Characteristics, Pros and Cons Implements its own protocol Exposes pieces of application logic, operations Advantages ◦ Versatile in use of different application protocols ◦ Tunnels easily through firewalls due to the use of HTTP model Disadvantages ◦ Slower when using large XML messages
- 7. What is REST? REST: Representational State Transfer focuses on accessing named resources through a consistent interface Every resource has its representation (could be a document) and the resource state changes when some method is applied through a request using any vocabulary
- 8. Constraints and Principles Client-server Cacheable Stateless Uniform interface Identification of resources Manipulation of resources Self-descriptive messages
- 9. SOAP vs. REST SOAP RPC: Application designers have to build up their protocol vocabulary whereas in REST it uses the well known vocabulary of the protocol in use REST: Different data formats where SOAP only allows XML REST has support for JSON, uses standard HTTP REST better performance and scalability SOAP reads cannot be cached
- 10. When to wash? When to relax? SOAP ◦ WS-Security: enterprise security features ◦ WS-AtomicTransactions: ACID compliant ◦ WS-ReliableMessaging: end-to-end reliability ◦ Ex.: smartphone app that communicates with a bank app on the web, need the previous implementations REST ◦ Lightweight ◦ Less complex for maintenance ◦ Bring the “web” back to web services
- 11. Reference http://www.w3schools.com/soap/default.asp http://en.wikipedia.org/wiki/Representational_State _Transfer http://en.wikipedia.org/wiki/SOAP http://www.crummy.com/writing/RESTful-Web- Services/ http://tomayko.com/writings/rest-to-my-wife