How to Check Text Inputs for SQL Injection Attacks in C#

Worried about SQL injection attacks on your website? You’re not alone; these threats have risen in number, and every online site or application is a potential target. Providing an additional layer of protection beyond your firewall is a simple solution to this type of attack, and in this brief tutorial, we will explain how to check text inputs for SQL injections using an API in C#.

Let’s start by installing .NET Framework SDK:

Install-Package Cloudmersive.APIClient.NET.Validate -Version 3.2.0

Now we can input our parameters and call the function with the following code:

using System;
using System.Diagnostics;
using Cloudmersive.APIClient.NET.Validate.Api;
using Cloudmersive.APIClient.NET.Validate.Client;
using Cloudmersive.APIClient.NET.Validate.Model;
namespace Example
{
    public class TextInputCheckSqlInjectionExample
    {
        public void main()
        {
            // Configure API key authorization: Apikey
            Configuration.Default.AddApiKey("Apikey", "YOUR_API_KEY");
var apiInstance = new TextInputApi();
            var value = value_example;  // string | User-facing text input.
            var detectionLevel = detectionLevel_example;  // string | Set to Normal to target a high-security SQL Injection detection level with a very low false positive rate; select High to target a very-high security SQL Injection detection level with higher false positives.  Default is Normal (recommended). (optional)
try
            {
                // Check text input for SQL Injection (SQLI) attacks
                SqlInjectionDetectionResult result = apiInstance.TextInputCheckSqlInjection(value, detectionLevel);
                Debug.WriteLine(result);
            }
            catch (Exception e)
            {
                Debug.Print("Exception when calling TextInputApi.TextInputCheckSqlInjection: " + e.Message );
            }
        }
    }
}

Don’t forget to grab your API key from the Cloudmersive website if you don’t already have one; you can register for free and receive access to 800 monthly calls across our entire library of APIs.