The MuleSoft Anypoint DevKit enables the development of MuleSoft Anypoint Connectors. It provides a development environment including Java JDK, Apache Maven, Anypoint Studio, and a DevKit plugin. It supports creating new connectors or importing existing connector projects. The DevKit features include visual design tools, Maven support, authentication mechanisms, data modeling options, testing capabilities, and annotation-based implementation.

1. MULE –Anypoint Connector DevKit

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Overview
The MuleSoft Anypoint DevKit , or simply DevKit , enables the development
of MuleSoft Anypoint Connectors.
A MuleSoft connector is an extension module to the MuleSoft Anypoint
Platform, with modules that ease the interconnection of third-party systems
and APIs with Mule applications.

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Development Steps
Development environment: Install Java JDK version 7, Apache Maven,
Anypoint Studio, and Anypoint DevKit Plugin to build and test your
connector. You can develop a connector using Windows, Mac, or Linux.
New Connector - Create an Anypoint project - Set up Anypoint Studio and
install the connector plugin. Existing Connector - Click File > Import >
Anypoint Studio > Anypoint Connector Project from External Location,
choose a URL or a .zip file, and complete the wizard to locate and import
the project. See also Creating a SOAP Connector and Creating a REST
Connector.

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Data Gateway is a Salesforce package which you install via Salesforce
AppExchange. After you isntall the package, you can access the Data
Gateway Designer, which allows you to quickly and easily create a new
gateway to your desired external data source. After you’ve configured your
gateway, you can publish it – make it available to the external entities that
you specify – as well as see existing objects in your data source, and
create new objects.

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Determine resource access - Each resource has a different access
method, such as REST, SOAP, FTP, or the Java SDK features.
Choose an authentication mechanism - Mule supports OAuth V1 or V2, and
username and password authentication (known as connection
management), which can be used for protocols such as API Key, SAML,
NTLM, Kerberos, or LDAP.

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Choose the connector’s data model - Models can be static Java objects or
dynamic objects. You can use DataSense - Determine what information the
target resource expects.
Add connector @ attribute annotations - Create code for your connector
containing the @ attributes that Mule uses to designate the important parts
of your connector.

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Code tests - Tests can be unit tests, functional tests, and Studio
interoperability tests.
Document your connector - MuleSoft provides a template that helps you fill
in the blanks to create documentation to help your staff and to help others
understand the features and use of your connector.
Package your connector.

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Supported EDI Document Types
B2B Portal 1.0.0 Beta (Trading Partner Management and Message
Tracking)
AS2 and EDI X12 Purchase Order Walkthrough
FTPS and EDI X12 Purchase Order Walkthrough

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DevKit Features
Features DevKit provides:
Visual design and implementation using Anypoint Studio with an Eclipse-
based interface that simplifies and speeds up development.
Maven support.
Connector packaging tools.
Authentication support for multiple types of authentication, including OAuth
and username and password authentication.

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DevKit Features
DataSense support to acquire remote metadata.
Extensive testing capability.
Examples, training, and support to simplify development startup.
Batch, Query Pagination, and DataSense Query Language support.
DevKit is a annotations-based tool, with a wide set of available annotations
to support its features. For a complete list of DevKit annotations, see the
Annotation Reference.

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What is a Connector?
An Anypoint connector is an extension module that eases the interaction
between a Mule application and external resources, such as a databases
or APIs, through REST, SOAP, or the Java SDK.
As reusable components that hide API complexity from the integration
developer, custom connectors facilitate integration with SaaS and on-
premise web services, applications, and data sources. Connectors built
using Anypoint DevKit in Anypoint Studio, running Mule runtime
environments, act as extensions of Mule Anypoint Platform.