Consume Rest API in Asp.net webforms project

Question

Hello, I have a Asp.net webforms project and I have to consume an external REST API to send our data. I have two layers in my project, Presentation layer and service layer (like DAL - it has all my WCF services). Currently, there is a existing screen with save method which saves data to the application database. If the transaction is successful, then I have to post the same data to External API. So the question are 1. In which layer(Presentation or Service) I need to implement the WEB API call? 2. Should I create any Web API controller to consume the Rest API. Thanks.

Viswanatha Swamy · Answer

Rajesh, Good morning. I thought you are interacting with external asmx. Now I understand that your ServerLayer.CSPROJ has the .asmx. In this case you can add the service reference into your Presentation.CSPROJ from your ServiceLayer.CSPROJ. Please refer the below link for additional details. If you need some sample code, I will be able to spead time on weekend. Many thanks. https://docs.microsoft.com/en-us/dotnet/core/additional-tools/wcf-web-service-reference-guide

Rajesh G · Answer

Thank you all for your reply. Can you give an example (like a layout) on this - It will be better to have a class (if it is backed up by interface will be better) inside the service layer. My service layer has asmx and wcf files which communicates to database. Thanks Raj.

Jignesh Kumar · Answer

Hi Rajesh, Please find below link, https://www.aspsnippets.com/Articles/Call-Consume-Web-API-in-ASPX-Page-in-ASPNet-Web-Forms-using-C.aspx https://www.c-sharpcorner.com/article/using-web-api-with-asp-net-web-forms-part-seven/

Viswanatha Swamy · Answer

Rajesh, Good morning. I assume Web API is already developed and you have contracts (Input/Output) defined. It will be better to have a class (if it is backed up by interface will be better) inside the service layer, this class will exclusively communicates with Web API. C# code from your Web Layer can invoke the methods from the class which communicates with Web API. Many thanks.

Consume Rest API in Asp.net webforms project

Answers (4)