Presented by Greg Hines

E.g. SOAP, XML-RPC

E.g. SOAP, XML-RPC

E.g. REST

E.g. REST

REST itself isn’t complicated. Defining REST is.

REST itself isn’t complicated. Defining REST is.

Yet.

Yet.

A blog post A collection of blog posts An image A user Map coordinates A bank transaction Search results

A blog post

A collection of blog posts

An image

A user

Map coordinates

A bank transaction

Search results

Every resource has at least one URI; every URI points to a resource. http://example.com/blog/2008/05/14/restful-web-services-and-drupal http://example.com/blog/2008/05 http://example.com/

Every resource has at least one URI; every URI points to a resource.

http://example.com/blog/2008/05/14/restful-web-services-and-drupal

http://example.com/blog/2008/05

http://example.com/

Response Codes 200 OK 404 Not Found 500 Internal Server Error There are 39 response codes (plus two not in current use)

Response Codes

200 OK

404 Not Found

500 Internal Server Error

There are 39 response codes (plus two not in current use)

HTTP is stateless by design

HTTP is stateless by design

HTTP is stateless by design Every HTTP request happens in isolation

HTTP is stateless by design

Every HTTP request happens in isolation

HTTP is stateless by design Every HTTP request happens in isolation There are two kinds of state in a RESTful web service…

HTTP is stateless by design

Every HTTP request happens in isolation

There are two kinds of state in a RESTful web service…

Resources link to each other: <a href=&quot; http://example.com/resource/3 &quot;>...</a>

Resources link to each other:

<a href=&quot; http://example.com/resource/3 &quot;>...</a>

Resources link to each other: <a href=&quot; http://example.com/resource/3 &quot;>...</a> <link rel=&quot;alternate&quot; type=&quot;application/atom+xml&quot; href=&quot; http://example.com/resource/2.atom &quot; />

Resources link to each other:

<a href=&quot; http://example.com/resource/3 &quot;>...</a>

<link rel=&quot;alternate&quot; type=&quot;application/atom+xml&quot; href=&quot; http://example.com/resource/2.atom &quot; />

Resources link to each other: <a href=&quot; http://example.com/resource/3 &quot;>...</a> <link rel=&quot;alternate&quot; type=&quot;application/atom+xml&quot; href=&quot; http://example.com/resource/2.atom &quot; /> <?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?> <resource xmlns=&quot;http://example.com/ns/resource&quot;> <content>...</content> <nextResource href=&quot; http://example.com/resource/3 &quot;/> <prevResource href=&quot; http://example.com/resource/1 &quot;/> </resource>

Resources link to each other:

<a href=&quot; http://example.com/resource/3 &quot;>...</a>

<link rel=&quot;alternate&quot; type=&quot;application/atom+xml&quot; href=&quot; http://example.com/resource/2.atom &quot; />

<?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>

<resource xmlns=&quot;http://example.com/ns/resource&quot;>

<content>...</content>

<nextResource href=&quot; http://example.com/resource/3 &quot;/>

<prevResource href=&quot; http://example.com/resource/1 &quot;/>

</resource>

(Sort of.)

(Sort of.)

An appeal to authority or argument by authority is a type of argument in logic consisting on basing the truth value of an assertion on the authority, knowledge, expertise, or position of the person asserting it. – Wikipedia

An appeal to authority or argument by authority is a type of argument in logic consisting on basing the truth value of an assertion on the authority, knowledge, expertise, or position of the person asserting it.

– Wikipedia

Co-founder, chairman of the Apache Software Foundation Co-founder of the Apache HTTP Project On IETF working groups for HTTP, URI, and HTML Architectural principal on HTTP working group First name on HTTP spec Originator of REST

Co-founder, chairman of the Apache Software Foundation

Co-founder of the Apache HTTP Project

On IETF working groups for HTTP, URI, and HTML

Architectural principal on HTTP working group

First name on HTTP spec

Originator of REST

User Management

User Management

User Management Resource Management

User Management

Resource Management

User Management Resource Management Routing

User Management

Resource Management

Routing

Multiple Representations for Resources

Multiple Representations for Resources

Multiple Representations for Resources Content Negotiation

Multiple Representations for Resources

Content Negotiation