Integration

Salesforce Integration Interview Questions and Answers

what is integration ?

Integration is a process of connecting two applications

what is webservices ?

Webservices is a functionality or code which helps to us to do integration.

what is Protocal ?

Protocal is contains set of instructions or rules.

How many types of API’s avaliable in salesforce ?

SOAP API, REST API, Bulk API and Streaming API.

What is Call In and Call Out?

Call In is used to exposing our webservices to another users and Call Out is used to invoking or consuming our webservices to others.

What is WSDL ?

WSDL stands for Webservices Description Langugage.It contains types, messages,port types and Binding.

How SOAP can be accessed ?

SOAP can be communicate through WSDL file, without WSDL file we can’t do integration.Message format in SOAP is XML

How to do callout integration ?

Generate WSDL code from class Path: setup-develop -apex class

Limitations of WSDL file?

File must be in .WSDL extenstion.Multiple port types and binding will not allowed Import and Inheritance operations are not supported.

What are remote site settings?

They are two ways of XML parsing 1. XML streams 2. XML DOM

How to read root elements in XML DOM?

getroot element

How to read child element in XML DOM ?

getchild elements

How to read text between tags ?

gettext

How SOAP and REST will Communicate ?

SOAP will communicate through WSDL file and REST will communicate through HTTP file

what are methods in REST ?

HTTPGET, HTTPPUT, HTTPPOST and HTTPDELETE

How REST can be accessed or which message format REST supports ?

REST supports both XML and JSON

What is JSON ?

JSON stands for JavaScript Object Notation. JSON is light weighted than XML

 

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