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Exposing & Consuming the Web service from & inside Navision – Part-4

Continuing from my previous post. Find the link to access the same in case you missed it.

Exposing & Consuming the Web service from & inside Navision – Part-1

Exposing & Consuming the Web service from & inside Navision – Part-2

Exposing & Consuming the Web service from & inside Navision – Part-3

 

Step 5: Create a Codeunit to test Retrieve the data using above DLL and Send data in XML Format using another Web Service exposed in Dot Net.

How to create WCF Service Application using C#, Publishing it and creating DLL Class Library is out of scope of this document. You may require to take help from guy who are comfortable in .Net technology.

Let’s start with new codeunit, select the available ID in your database and suitable name to save this codeunit.

We will define a Global variable to hold the data we receive from Navision Web Service and pass to Web Service exposed outside Navision.

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Create a Function to Read/Export the data using Navision Web Service.

Variables defined to the function is also shown in below screen.

We will add the code similar to below. Description provided along with the code in below screenshot.

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Create a Function to Send Exported data from above function to the Web Service created outside the Navision. Web Service created in DotNet.

Here too we are using DLL file of the Outside Exposed Web Service.

Variables defined to the function is also shown in below screen.

We will add the code similar to below. Description provided along with the code in below screenshot.

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Now we have our both function ready.

One which Export data consuming the Navision Published Web Service and then read the data in BigText Variable and finally converted to Text variable.

Second one will send data consuming the Web Service Exposed outside Navision created in DotNet. 

Let us test our process if it works as desired.

We will call above both function.

When we call First Web Service as a result we get the XML format file data in my Global defined Text Variable.

We will review the data which we are going to send to Second Web Service on Screen for which we are simply calling the Message.

Finally we will send the data to the Second Web Service, the content of XML file stored in our Global Variable.

Code we use is as below shown screenshot.

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Save the codeunit and execute, as we have written our test code in Run trigger so we can directly run this codeunit.

The output will be as shown in below screenshots.

Until this step our Data is Exported and data is loaded in Global defined Text variable.

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Here the content of Text variable is shown in Message window, which we can verify the data which we are going to send to the external Web Service.

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As a final step we are sending this content to the External Web Service Exposed using DotNet.

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Verify the data received at the DotNet side. You can program the Second Web Service as save the content on disk as file or perform any processing like inserting those data in some other table or displayed on screen. 

That’s it for this series.

I will be posting couple of more posts on Web Services soon.

Since this was in response of request from one of my reader so I stick to the requirement.

In my other post I will show some different flavour of using the same.

Till then keep exploring and learning.

Will be back with other posts soon.

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Exposing & Consuming the Web service from & inside Navision – Part-3

 

Continuing from my previous post. Find the link to access the same in case you missed it.

Exposing & Consuming the Web service from & inside Navision – Part-1

Exposing & Consuming the Web service from & inside Navision – Part-2

 

Step 4: Create a DLL to use as Add-in to consume the Web Service itself in Navision.

We will start with Class Library Project in Visual Studio.

It’s very simple with few steps to follow, and we will be done with our requirement.

Enter Name and select the path for your project solution folder. In my case I am saving my project to the default location of Visual Studio. And I am naming my project as XMLData.

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Right click on the project folder and Add Service reference to the project.

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Enter your Web Service URL and click on GO.

Once your Service is listed, enter the Reference Namespace. And click on OK to add the Service Reference to the project.

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Click on app.config in Solution browser to open.

Verify your code similar to below.

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Build your Project to obtain the .dll file.

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Below screen shows we have no errors and the .dll file is created successfully.

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Locate the .dll file in your Project folder similar to path shown below. Copy your dll file.

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Create a folder and paste your .dll file to Service & RTC folder, as shown in below screen.

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We are ready with the Add-in, which we will use in our next post to consume our service with the help of this dll, and call the method to obtain our file for further processing.

That’s all for this post, I will be back with next post in series soon.

Till then keep practicing.

 

To be Continued….

 

Exposing & Consuming the Web service from & inside Navision – Part-2

Continuing from my previous post. Find the link to access the same in case you missed it.

Exposing & Consuming the Web service from & inside Navision – Part-1

 

Step 1: Create a XML Port to Export Data in XML Format using XMLPort and save at some specified Location.

Here we will be creating just for demo purpose simple XMLPort for Exporting Data from Navision Database in XML Format.

WebServiceUsage-2

We are using very simple structure for our XMLPort.

Make sure you set the properties accordingly as we are exporting the data in XML Format.

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Save the XMLPort at available id and suitable name.

 

Step 2: Create a Codeunit to call XML Port and retrieve data in XML Format in Text Variable.

Here we will create a Codeunit with few helpful functions which will call the XMLPort to Export the data and save in temp file.

Further retrieve the data from the file in XML Format.

Return the data retrieved above to the calling program/ function.

To start with let us start with creating some Global Variables.

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Next we will add one Function as below.

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Next we will add one more Function as below.

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Save the Codeunit at available Id and suitable Name.

 

Step 3: Expose/Publish the Codeunit as web service.

Open Web Services Page and add your Codeunit created above. Use your relevant ID on which you saved your Codeunit.

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Tick the Published to Expose the Codeunit as Web Service.

Rest in my Next post.

To Be Continued……

Exposing & Consuming the Web service from & inside Navision – Part-1

Introduction

Today in reply to one of my reader I am giving here steps how we can Export data using XMLPort and transfer data outside Navision using Web Services.

Lets discuss about the technology before I jump to the solution.

Few full forms which may help understanding while reading this post.

W3C – Web Services Architecture Working Group.

SOAP – Simple Object Access Protocol.

REST – Representational State Transfer.

WSDL – Web Service Description Language.

UDDI – Universal Description, Discovery & Integration.

AWS – Arbitrary Web Services.

XML – Extensible Markup Language.

HTTP – Hypertext Transfer Protocol.

 

What is Web Service?

W3C defines Web Service as : A software system designed to support interoperable Machine-to-Machine interaction over a network.

Web service can be defined as service offered by an electronic devices to another electronic devices, which communicate with each other over www.

W3C defines web services has an interface described in a machine-process able format WSDL.

Other systems I with the web service in a manner prescribed by its description using SOAP messages, typically conveyed using HTTP with an XML serialization in conjunction with other web-related standards.

Later W3C extended the definition:-

REST – compliant web services, in which the primary purpose of the service is to manipulate representations of web resources using a uniform set of stateless operations.

Arbitrary Web Services –  the services may expose an arbitrary set of operations.

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UDDI  defines which software system need to be contacted for which type of data.

Once the system is discovered to be contacted, the contact is established using SOAP.

Service provider system validate the request by referring the WSDL file, process the request and send the data using SOAP protocol.

 

Web Service is a method of communication that allows two software system to exchange the data over the internet.

  • Two systems may use different software which could be using different programming languages.
  • Almost all type of software interpret XML tags.
  • Web Services can be used to exchange data between two systems in form XML files.

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XML is used to tag the data.

SOAP is used to transfer the data.

WSDL is used to describe the services available.

UDDI lists what service are available.

Human to machine communication is utilized for machine-to-machine communication, used for transferring machine readable files such as XML & JSON formats.

Web services use SOAP over HTTP protocol, facilitating to use your existing low-cost internet for implementing Web Service.

Rules for communication between two different systems:

All the rules are defined in WSDL file.

  • How request to be send from one system to another.
  • What all parameters need to be send while requesting data.
  • What structure to be used for generating data (Normally data is exchanged in XML format) which is validated against .xsd file.
  • What errors to be generated in case of failure of rule communication set.

 

Web Services that uses Markup Language:

  • JSON-RPC
  • JSON-WSP
  • Web template
  • Web Service Description Language (WSDL)
  • XML Interface for Network Services (XINS)
  • Web Services Conversation Language (WSCL)
  • Web Services Flow Language (WSFL)
  • WS-Meta data Exchange
  • Representational State Transfer (REST)
  • Remote Procedure Call (RPC)
  • XML Remote Procedure Call (XML-RPC)

 

No more theories lets come to our point.

There are other ways too to achieve the same, but here I am specific to the requirement to which I am answering.

Requirement is the Data in XML format file will be transmitted using Web Service, We will be using Navision Exposed Web Service to Export data using XMLPort and then send the content by consuming another Web Service exposed in Dot Net which will retrieve the XML content and update in some other system.

Assumption is these two endpoints can be two separate databases in same domain or two different companies of same organization operating at two different location sharing information via Web Services.

For the demo purpose I will be using Navision to publish the service for exporting the data and retrieve the data using Web Service exposed in Dot Net.

Since I have not in depth knowledge of Dot Net codes, so I have asked my college to prepare the Web Service for me and I am simply using it to show how we can do it.

Here I will be getting this done through below 5 Steps.

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Next Post in this Series will contain:

Step 1: Create a XML Port to Export Data in XML Format using XMLPort and save at some specified Location.

Step 2: Create a Codeunit to call XML Port and retrieve data in XML Format in Text Variable.

Step 3: Expose/Publish the Codeunit as web service.

 

Next Post in this Series will contain:

Step 4: Create a DLL to use as Add-in to consume the Web Service itself in Navision.

 

And the Final Post in this Series will contain:

Step 5: Create a Codeunit to test Retrieve the data using above DLL and Send data in XML Format using another Web Service exposed in Dot Net.

 

Please follow my upcoming post for Walkthrough to get above 5 steps done.

To Be Continued……….

 

Important

Most of the contents you find in this blog will be either inherited from MSDN or Navision Developer IT Pro Help. Some places images are also directly taken from these sites. Purpose is simple to try those stuffs and re-produce adding few things as per my understanding to make easy understanding for others and quick reference.

Here nothing under my own brand or authorship of the content. At any point of time we are just promoting Microsoft stuffs nothing personnel with same.

Hope stuffs used here will not violate any copyright agreement with them. In case by mistake or in-intestinally it happens and the Microsoft feels these should not be used Microsoft have full right to inform me about same and will be glad to take down any such content which may be violating the norms.

Purpose is to promote Navision and share with community.

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