Add simple web service

Directory.Build.props

@@ -1,9 +1,9 @@
 <Project>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Net.Compilers.Toolset" Version="3.3.1">
+    <PackageReference Include="Microsoft.Net.Compilers.Toolset" Version="4.12.0">
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0-preview.2">
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3">
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     </ItemGroup>

SymSpell.SWS/Controllers/LookupController.cs

@@ -0,0 +1,33 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace SymSpellSWS.Controllers;
+
+[ApiController]
+[Route("[controller]")]
+public class LookupController : ControllerBase
+{
+    private readonly SymSpell _symSpell;
+
+    public LookupController(SymSpell symSpell)
+    {
+        _symSpell = symSpell;
+    }
+
+    [HttpGet]
+    public IEnumerable<SymSpell.SuggestItem> Get([FromQuery] string word, [FromQuery] string verbosity = "Closest")
+    {
+        if (string.IsNullOrWhiteSpace(word))
+        {
+            return Enumerable.Empty<SymSpell.SuggestItem>();
+        }
+
+        var verbosityEnum = verbosity.ToLower() switch
+        {
+            "top" => SymSpell.Verbosity.Top,
+            "all" => SymSpell.Verbosity.All,
+            _ => SymSpell.Verbosity.Closest,
+        };
+
+        return _symSpell.Lookup(word, verbosityEnum);
+    }
+}

SymSpell.SWS/Program.cs

@@ -0,0 +1,35 @@
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddControllers().AddJsonOptions(options =>
+{
+    options.JsonSerializerOptions.IncludeFields = true;
+});
+
+// Configure and register SymSpell as a singleton
+const int initialCapacity = 82765;
+const int maxEditDistance = 2;
+const int prefixLength = 7;
+var symSpell = new SymSpell(initialCapacity, maxEditDistance, prefixLength);
+
+// Load dictionary
+string path = Path.Combine(AppContext.BaseDirectory, "frequency_dictionary_en_82_765.txt");
+if (!symSpell.LoadDictionary(path, 0, 1))
+{
+    Console.Error.WriteLine("Dictionary file not found: " + Path.GetFullPath(path));
+    // App will start, but lookups will be incorrect.
+}
+builder.Services.AddSingleton(symSpell);
+
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

SymSpell.SWS/Properties/launchSettings.json

@@ -0,0 +1,29 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:5000",
+      "sslPort": 5001
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": false,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "SymSpell.SWS": {
+      "commandName": "Project",
+      "dotnetRunMessages": "true",
+      "launchBrowser": false,
+      "applicationUrl": "https://localhost:5001;http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

SymSpell.SWS/SymSpell.SWS.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SymSpell\SymSpell.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <!-- Assumes frequency_dictionary_en_82_765.txt is in the SymSpell folder -->
+    <Content Include="..\SymSpell\frequency_dictionary_en_82_765.txt" Link="frequency_dictionary_en_82_765.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+</Project>

SymSpell.SWS/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Information"
+    }
+  }
+}

SymSpell.SWS/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

SymSpell.SWS/test_sws.py

@@ -0,0 +1,43 @@
+import json
+import ssl
+import sys
+import urllib.request
+
+def main():
+    if len(sys.argv) < 2:
+        print("Certificate path not provided.", file=sys.stderr)
+        sys.exit(1)
+
+    cert_path = sys.argv[1]
+    context = ssl.create_default_context(cafile=cert_path)
+
+    try:
+        # The service redirects http to https, so let's use https directly
+        # We request Verbosity.All to get all suggestions within maxEditDistance
+        url = "https://localhost:5001/lookup?word=watevr&verbosity=All"
+        with urllib.request.urlopen(url, context=context) as response:
+            if response.status != 200:
+                print(f"Error: Received status code {response.status}", file=sys.stderr)
+                sys.exit(1)
+
+            data = json.loads(response.read().decode())
+
+            if not data:
+                print("Error: Received empty response.", file=sys.stderr)
+                sys.exit(1)
+
+            # Check if 'whatever' is in the list of suggestions
+            found = any(s.get('term') == 'whatever' for s in data if isinstance(s, dict))
+
+            if found:
+                print("Test passed!")
+            else:
+                print(f"Test failed: Expected a suggestion of 'whatever' in the results, but got: {json.dumps(data)}", file=sys.stderr)
+                sys.exit(1)
+
+    except Exception as e:
+        print(f"An error occurred: {e}", file=sys.stderr)
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()

SymSpell.sln

@@ -1,4 +1,4 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.27130.2027
 MinimumVisualStudioVersion = 15.0.26124.0
@@ -25,6 +25,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "miscs", "miscs", "{B96EF85F
 		RunThisFirst_dotnetrestore.bat = RunThisFirst_dotnetrestore.bat
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SymSpell.SWS", "SymSpell.SWS\SymSpell.SWS.csproj", "{6BFFBDBC-CB71-4451-BDF3-246446329B2B}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -59,6 +61,10 @@ Global
 		{9C78B67B-6782-4F28-B5F7-14C94E2CE017}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9C78B67B-6782-4F28-B5F7-14C94E2CE017}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9C78B67B-6782-4F28-B5F7-14C94E2CE017}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6BFFBDBC-CB71-4451-BDF3-246446329B2B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6BFFBDBC-CB71-4451-BDF3-246446329B2B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6BFFBDBC-CB71-4451-BDF3-246446329B2B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6BFFBDBC-CB71-4451-BDF3-246446329B2B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

test_sws.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+set -e
+
+CERT_PATH=SymSpell.SWS/sws-test-cert.pem
+echo "Exporting dev cert for testing to $CERT_PATH..."
+dotnet dev-certs https --format PEM --export-path $CERT_PATH
+
+# Ensure cert is removed and web service is killed on exit
+trap 'echo "Stopping web service..."; kill $SWS_PID; echo "Cleaning up cert file..."; rm -f $CERT_PATH' EXIT
+
+echo "Starting SymSpell.SWS web service..."
+dotnet run --project SymSpell.SWS/SymSpell.SWS.csproj &
+SWS_PID=$!
+
+echo "Waiting for service to start..."
+sleep 10
+
+echo "Running test script..."
+python3 SymSpell.SWS/test_sws.py $CERT_PATH