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Web Services – Business Central Part- 2

Today in this post we will continue from where we left our previous post, if you missed or wish to have a look you can find her in this link.

Web Services – Business Central Part- 1

We saw in our previous post, you expose an OData service that can be accessed from a URL by using a web browser or any other HTTP client.

You need the URL of the OData page or query web service

https://server:webserviceport/serverinstance/oData/web service”

If you use the attribute ?$format=atom you will get an AtomPub document

https://KSD-DESKTOP:7748/BC130/OData/Customers?$format=atom

If you use the attribute ?$format=json you will get an JSON document

https://KSD-DESKTOP:7748/BC130/OData/Customers?$format=json

You can obtain service metadata documents for either page or query web services.

https://ksd-desktop:7748/BC130/OData/$metadata

SOAP Web Services

If your client requests another transport protocol than HTTP or HTTPS, then you can use SOAP as it also supports, for example, SMTP.

Microsoft is heavily investing in REST and OData, and certainly with the online apps like Power BI, PowerApps, and others.  So at this point SOAP isn’t the primary choice for web services anymore.

We can find the available SOAP web services at the same page where we define the OData web services.

If we go to the search box and then search for web services, This page is used to enable access to OData and SOAP web services.

ws-001

We could enable OData web services only with the object types of query and pages, and for SOAP web services, we can only enable it for pages and codeunits and not for queries.

For example soap url for my Customers Service will be as below:

https://KSD-DESKTOP:7747/BC130/WS/CRONUS%20International%20Ltd./Page/Customers

You can find some post related to consuming web service and working with web service for older versions but it can be used with business central too.

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

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

When you are exposing your object for web service, ensure that you use GUIAllowed function to supress the UI. Encapsulate the code that could cause in error, not your entire code.

Also the exceptions must be handled in order to facilitate that your web service don’t end the execution unexpectedly.

You must check with the GuiAllowed function when you are using one of the following dialog functions:

Close, Confirm, Error, Open, StrMenu, Update

The Message function is the only dialog function that doesn’t cause an exception.

Other keywords that you shouldn’t use are:

Page.Run, Page.RunModal, Activate, Report.Run, Report.RunModal, Hyperlink, File.Upload, File.Download

Hope you got some insight on Web Services.

I will come up with more features in other posts, till then keep exploring and learning, and take care of yourself.

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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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