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Rajeun
Rajeun

Reputation: 721

Create API using Mule ESB

I have to create an API supplying some relevant information using Mule ESB. In order to do that, I need to communicate with some others API providers (Wikipedia API for example) toobtain information and craft the JSON response to return the required information.

PS: I use maven to manage my dependencies.

Do you have any ideas fom where to start or the dependencies/Mule components that can help? I'll be thankful

Upvotes: 1

Views: 146

Answers (2)

JRichardsz
JRichardsz

Reputation: 16495

You can use options provided by Victor. Here some offical documentation:

Publishing and Consuming APIs with Mule

These options require an intermediate knowledge of the mule. Dont worry, if you dont have time, you can use all java frameworks with mule:

Publish Basic Rest API(assuming you do not use soap services):

Create flow with an http-listener + rest component + java entity.

REST Component basic example

Or create a rest service using spring and deploy it in tomcat for example and send request parameters to some jms queue. Create a jms receive component in mule. This receive parameters from queue and passing the data to the next component in order to create a json response and return to spring rest service.

Consume Rest service

For example. You could use apache client and create a maven project as library to be used or invoke inside java mule component:

    public class MuleComponent {
            public Object executeRestClient(Object muleMessage){

              //based on apache client
              MyRestClientLibrary client = MyRestClientLibrary ();
              client.setUrl("http://wikipedia/rest/service/..");
              Object someParameters = muleMessage.getProperty("someParameter"....
              Object response = client.executeOperation01(someParameters); 
              return response;//data to be used by next component
            }
        }

This component could be used by any mule flow who needs to consume data from wikipedia service.

This could be a possible solution:

<rest-inbound> -> 

[get request params] -> 
[consume-external-service(rest apache client)]->
[get data from DB or another source] -> 
[build json response] ->

<rest-outbound>

Regards.

Upvotes: 0

V&#237;ctor Romero
V&#237;ctor Romero

Reputation: 5115

To create your own API start with APIkit.

Then to consume rest you have two options, leverage the http connector and a RAML definition (only applicable if the api to be consumed is REST based) or create your own connector with devkit.

Upvotes: 2

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