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--- guides:sample_web_service_project [2018/10/26 22:21] – brett.zamora
+++ guides:sample_web_service_project [2018/10/26 23:02] (current) – brett.zamora
@@ Line 1: / Line 1: @@
 ===== CeRTNA Sample Web Service Project =====
-CeRTNA has uploaded a sample Visual Studio 2015 C# project that provides a high-level demonstration of how to call the CeRTNA web services. The project can be downloaded by clicking this link: (ChecksumTool Project)
+CeRTNA has uploaded a sample Visual Studio 2015 C# project that provides a high-level demonstration of how to call the CeRTNA web services.
-The project uses the following NuGet packages, which you will need to install in your Visual Studio setup, if you do not already have them installed:
+**Disclaimer:** This sample project is provided as is for reference purposes only. It is not intended to represent production quality code.
-Newtonsoft.Json
+The application demonstrates functions like:
-RestSharp
+  * Obtaining the value of a Base64 document string from an XML file.
+  * Calculating a SHA384 Hash and converting the hash to a Base64 string.
+  * Logging in to obtain a soft-token for use with the various web services.
+  * Calling StoreChecksum web service to store a checksum value.
+  * Calling the ValidateChecksum web service to validate a checksum value.
+The project can be downloaded by clicking this link: ({{guides:checksumtool.zip|Checksum Tool}})
+The ChecksumTool project uses the following NuGet packages, which you will need to install into your Visual Studio setup, if you do not already have them installed:
+  * Newtonsoft.Json
+  * RestSharp
 The project uses the Windows Presentation Foundation (WPF) classes for the UI.
@@ Line 12: / Line 25: @@
 Following is a brief outline of how to use the tool:
+After starting the tool, the following UI will be displayed:
+{{ :guides:images:checksum_tool.png |}}
+To use the tool, the typical order of steps would be:
+{{tablelayout?colwidth="200px,400px"&rowsFixed=1&rowsVisible=10&float=center}}
+^ Step ^ Comment ^
+| Enter User Name & PW | These are special web service user accounts provided to you by CeRTNA. |
+| Select/Load an XML file | You can use a REQUEST or RESPONSE file. |
+| Enter a Doc Seq# | This identies which Doc Seq# contained in the XML file that you wish to work with. |
+| Click the Calculate button | The SHA3 checksum is calculated and displayed in the Base64 Document Checksum field. |
+| Click the Store button | The calculated checksum is stored in the CeRTNA Portal and a Checksum Key is returned and displayed in the Base64 Document Checksum Key field. |
+| Click the Validate button | The ChecksumKey and Checksum values displayed on the form are used to validate the locally calculated checksum value against the stored value in the database. |
+| Click the Reset button | This clears the form fields. |
+**Note:** The Checksum Value field is unprotected so that you can modify the checksum value manually to test the negative result of the ValidateChecksum flow.
+There are plenty of other tools available for testing web services as well. One of the tools CeRTNA works with is POSTMAN. You can download a free version of POSTMAN from the following URL: https://www.getpostman.com/apps
-{{ :guides:images:web_service_architecture.png |}}
-To receive a 'soft-token' you must successfully authenticate. Once you have successfully authenticated, you will receive a 'soft-token' that can be used for subsequent web service calls. Your 'soft-token' is valid for the duration of your SSL session.