Putting Hypermedia Back in REST with JAX-RS

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PT.JUG

Apresentação de Sebastian Daschner para o 27º encontro PT.JUG.

Technology

Putting Hypermedia Back in REST
with JAX-RS
sebastian daschner

@DaschnerS
sebastian daschner
● Java developer / architect / consultant
● JAX-RS Expert Group member
● Java Champion
● conference speaker

@DaschnerS
workshops / training
● workshops in Munich
● workshops in Oslo / Norway (TBA)
● virtually on demand

@DaschnerS
“REST” APIs in real-world projects

@DaschnerS
“REST” APIs in real-world projects
POST /doSomeAction
request
<someActionRequest>
<param>12345</param>
</someActionRequest>
response
<someActionResponse>
<foo>bar</foo>
...
</someActionResponse>

@DaschnerS
“REST” APIs in real-world projects
POST /getFoobarInformation
request
<foobar>
<id>12345</id>
</foobar>
response
<information>
<foo>bar</foo>
...
</information>

@DaschnerS
“REST” APIs in real-world projects
GET /users
response
<users>
<user>
<id>12345</id>
<name>Duke</name>
<motto>JAX-RS rocks!</motto>
</user>
...
</users>

@DaschnerS
“REST” APIs in real-world projects
POST /users
request
<user>
<name>Duke</name>
<motto>JAX-RS rocks!</motto>
</user>
response
201 Created
Location: /users/12345

@DaschnerS
Enter Hypermedia
GET /users
response
<users>
<user>
<name>Duke</name>
<motto>JAX-RS rocks!</motto>
<link rel="self" href="/users/1234"/>
</user>
</users

$@DaschnerS Enter Hypermedia GET /books/12345 response { "name": "Java", // + author, availability, price "_links": { "self": "/books/12345", "add-to-cart": "/shopping_cart" } }$

$@DaschnerS Enter Hypermedia ... "actions": [ { "name": "add-to-cart", "method": "POST", "href": "/shopping_cart", "type": "application/json", "fields": [ { "name": "id", "type": "text" }, { "name": "quantity", "type": "number" } ] } ]$

@DaschnerS
Hypermedia formats
● HAL
● Collections+JSON
● Siren
● JSON Schema
● JSON-LD & Hydra
● ...

Thanks for your attention!
sebastian-daschner.com
twitter.com/DaschnerS
github.com/sdaschner

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Putting Hypermedia Back in REST with JAX-RS

1. Putting Hypermedia Back in REST with JAX-RS sebastian daschner

2. @DaschnerS sebastian daschner ● Java developer / architect / consultant ● JAX-RS Expert Group member ● Java Champion ● conference speaker

3. @DaschnerS workshops / training ● workshops in Munich ● workshops in Oslo / Norway (TBA) ● virtually on demand

4. @DaschnerS “REST” APIs in real-world projects

5. @DaschnerS “REST” APIs in real-world projects POST /doSomeAction request <someActionRequest> <param>12345</param> </someActionRequest> response <someActionResponse> <foo>bar</foo> ... </someActionResponse>

6. @DaschnerS “REST” APIs in real-world projects POST /getFoobarInformation request <foobar> <id>12345</id> </foobar> response <information> <foo>bar</foo> ... </information>

7. @DaschnerS Resources

8. @DaschnerS “REST” APIs in real-world projects GET /users response <users> <user> <id>12345</id> <name>Duke</name> <motto>JAX-RS rocks!</motto> </user> ... </users>

9. @DaschnerS Semantic HTTP

10. @DaschnerS “REST” APIs in real-world projects POST /users request <user> <name>Duke</name> <motto>JAX-RS rocks!</motto> </user> response 201 Created Location: /users/12345

11. @DaschnerS Enter Hypermedia

12. @DaschnerS Enter Hypermedia GET /users response <users> <user> <name>Duke</name> <motto>JAX-RS rocks!</motto> <link rel="self" href="/users/1234"/> </user> </users

13. @DaschnerS Enter Hypermedia GET /books/12345 response { "name": "Java", // + author, availability, price "_links": { "self": "/books/12345", "add-to-cart": "/shopping_cart" } }

14. @DaschnerS Enter Hypermedia ... "actions": [ { "name": "add-to-cart", "method": "POST", "href": "/shopping_cart", "type": "application/json", "fields": [ { "name": "id", "type": "text" }, { "name": "quantity", "type": "number" } ] } ]

15. @DaschnerS Hypermedia formats ● HAL ● Collections+JSON ● Siren ● JSON Schema ● JSON-LD & Hydra ● ...

16. Thanks for your attention! sebastian-daschner.com twitter.com/DaschnerS github.com/sdaschner

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