ESB MULE TUTORIAL PDF

Mule is a lightweight, open source integration framework. In this tutorial, learn the requirements and steps for creating a sample Mule ESB. MuleSoft or Mule ESB interview Questions. Here are the 18 most important and common mulesoft or mule esb interview questions and answers which are bound . Mulesoft ESB Tutorial for Beginners – Learn Mulesoft ESB in simple and easy steps starting from basic to advanced concepts with examples.

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Web service is a function or program in any language that can be accessed over HTTP. Web services can be synchronous or asynchronous.

Any web service has server-client relationship. Any web service can have multiple clients. When a travel portal is selling tickets of an airliner, Portal is client and the Airline is the server as it is selling its service.

Also see Mule Interview Questions I. What are inbound and Outbound properties? A message retains its inbound properties only for the duration of the flow; when a message passes out of a flow, its inbound properties do not follow it.

In tutoriial Variable in Mule 4 tutorial we will look how we can create and use mule variable in Mule 4, and how it is different from Mule 3 and Mule 4. In Mule 3 we had Flow variables, Session variables and record variable to store the data inside mule flow. But now in Mule 4 this has been changed; session variable and record variable has been removed and there is only Flow Variable. As in Mule 3, Flow Variable in Mule 4 value is lost even when the flow crosses the transport barrier.

Session variable has been completely removed in Mule 4. In Mule 4, flow variables have been enhanced to work efficiently during batch processing, just like the record variables.

Flow variables created in batch steps are now automatically tied to the processing record and stays with it throughout the processing phase. No longer record variables are needed. Among these, MEL is mhle expression language in Mule 3 But this approach had some data inconsistencies and scattered approaches. To avoid the stress of converting data objects to Java objects in Mule 3 every time by the usage of expressions Mule 4 was launched. Apart from syntax changes, there are many new features in DataWeave 2.

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Here are the list of tutorials that you need for getting started with Mulesoft: In this mule tutorial, here are the most important and eab RAML interview questions and answers which are bound to be asked in any Mule ESB interview.

What is RAML and why we use it?

Mulesoft ESB Tutorial

RAML can also be used for documentation purpose. Who can you import RAML in your poject? The message that mulesoft application received should have some validations while mapping to the backend application request, in case of validation failure the application should throw an error with error message. The above example, can be resolved in couple of ways and we will see one of the most simplest and easy way by creating validation framework.

We will resolve by using dataweave and a custom exception class. In this tutorial we will look at various configuration properties of Scatter-Gather with examples in detail and also see how to handle exception in Scatter-Gather. Why use Scatter-Gather in Mulesoft: To achieve parallel processing of multiple flows in mule we can use Scatter-Gather. The routing message processor Scatter-Gather sends a request message to multiple routes concurrently which are configured inside Scatter-Gather and collects the responses from all routes, and aggregates them into a single message.

There will be multiple threads created for executing multiple routes simultaneously. Scatter-Gather can also execute multiple routes sequentially. Please read Validation Framework to understand how error is generated in the example. Please refer to Mule Tutorial: What is caching and why to use it? Caching is a concept with is used to store frequently used data in the memory, file system or database which saves processing time and load if it would have to be access from original source location every time.

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What is Mule ESB?

We have to create an API to retrieve user information, that has connect to an external database which is on different server and fetch the records. Various types of flows in mule. There are 4 types of flows in mule.

While creating these flows the flow name should be unique in whole mule project despite beaning in different mule application XML file. Use — It can be used to split common logic and be reused by other flows. As of Anypoint Studio May with 3. Outbound — Tutoorial JMS will send the message and be used with an outbound endpoint.

Creating a Mule ESB Sample Application

Tutorials A to Z. Skip to content Mulesoft Tutorials DataWeave 2. What are Web Services? Variable in Mule 4 In this Variable in Mule 4 tutorial we will look how we can create and use mule variable in Mule 4, and how it is different from Mule 3 and Mule 4. In Mule-4 DataWeave version has changed from 1. MuleSoft Scatter-Gather Scope In this tutorial we will look at various configuration properties of Scatter-Gather with examples in detail and also see how to handle exception in Scatter-Gather.

Various types of flows in mule There are 4 types of flows in mule. SubFlow Subflow always processes messages synchronously relative to the flow that triggered its execution. Subflow executes in the same thread of the calling process. Calling process triggers the sub-flow and waits for it to complete and resumes once the sub-flow has completed.

Tutoril Connector Mule tutorial.