Tutorial: Configuring B2B Messaging Using BizTalk Services Portal and Bridges
Updated: November 21, 2013
Windows Azure BizTalk Services provides two key integration possibilities – enterprise application integration (EAI) and business-to-business messaging using EDI. Using EAI, you can create BizTalk Services bridges that are deployed on Windows Azure. Using B2B, you can create trading partners and agreements to process EDI messages on the cloud. You can then route the EDI messages to the already deployed BizTalk Services bridges for further processing. This tutorial provides step by step instructions to create, deploy, and test an end-to-end BizTalk Services scenario.
Contoso and Northwind are two business partners. Contoso (the retailer) sends sales order messages to Northwind (the supplier). Northwind maintains all the sales order data in table called SalesOrder, which is housed in a SQL Server database within Northwind’s premises. Contoso can send either XML messages or EDI messages to Northwind so Northwind has to implement a solution, which enables the following:
Contoso can send either an X12 message or an XML message for sales order.
Contoso must send messages that conform to the schema for the sales order message expected by Northwind.
Contoso can also send XML messages to directly insert sales order data in the SalesOrder table in Northwind’s SQL Server database.
To enable this scenario, Northwind does the following:
For Contoso to send XML messages, Northwind configures an XML Request-Reply Bridge on BizTalk Services to enable message validation and transformation. This bridge takes an input XML message, validates it against the sales order schema required by Northwind, and transforms the message to that schema. Northwind also uses BizTalk Adapter Service to enable connectivity to the on-premise SQL Server database from the XML Request-Reply Bridge deployed on the Service Bus.
For Contoso to send EDI X12 messages, Northwind uses the BizTalk Services Portal to configure and deploy an agreement using which Contoso can send an EDI/X12 message to Northwind.
The following illustration summarizes the scenario:
Integration Capabilities Demonstrated in this Tutorial
The scenario used for this tutorial will help us showcase the following integration capabilities of BizTalk Services.
Message transportation: The retailer and supplier can be present in different platforms and conform to different transport protocols and message formats. The BizTalk Services implementation helps bridge these differences by understanding the different protocols and message formats.
Message validation: While the incoming purchase order might be in different message formats for different retailers, the incoming purchase orders should conform to one of those defined message formats. This is achieved through message validation.
Message transformation: The supplier adheres to a common purchase order format. Therefore, the incoming purchase orders have to be normalized to this common format. This is achieved through message transformation.
Hybrid connectivity: The supplier's data store is an on-premise Microsoft SQL server. The normalized purchase order received through the cloud application has to be persisted in the on-premise data store and this is achieved through Hybrid connectivity
Before You Begin this Tutorial
For instructions on how to prepare a BizTalk Services environment, see Administration and Development Process Flow. For setting up the EDI message transfer, you would need to access the BizTalk Services Portal.
How to Use this Tutorial
This tutorial is written around a sample, EAIEDITutorial.zip, which is available as part of the download from the MSDN Code Gallery. You could use the sample and go through this tutorial to understand how the sample was built. Or, you could use this tutorial to create your own application. This tutorial is targeted towards the second approach so that you understand how this application was built. Also, as much as possible, the tutorial is consistent with the sample and uses the same names for artifacts (for example, schemas, transforms) as used in the sample.
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