Holbor.Speller 3.0.0

dotnet add package Holbor.Speller --version 3.0.0
NuGet\Install-Package Holbor.Speller -Version 3.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Holbor.Speller" Version="3.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Holbor.Speller --version 3.0.0
#r "nuget: Holbor.Speller, 3.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Holbor.Speller as a Cake Addin
#addin nuget:?package=Holbor.Speller&version=3.0.0

// Install Holbor.Speller as a Cake Tool
#tool nuget:?package=Holbor.Speller&version=3.0.0


Speller is a .NET Core application that implements symmetric spelling algorithm.


Use the .NET Core 2.2+ to execute this application.

First you should restore all packages which are used by application. Go to the application root and execute.

dotnet restore

Now, you should build your application.

dotnet build

If you would like to execute the Web API application, go to the Speller.Presentation.Web.Api project and execute. It will create a self-hosted application.

dotnet run


The console application is static. To use it, just run the application.

If you would like to use the Web API application, execute it (check the installation section). Using Postman you can send data to the API.

By default, the API is on /api/speller.

Using REST, the request will be something like below.

POST /api/speller HTTP/1.1
Host: localhost:32768
Content-Type: application/json
    "dictionary": [
    "words": [

In dictionary array, you are supposed to send the destination words, that is, the words the algorithm will "search".

In words array, you are supposed to send the origin words, that is, the words the algorithm will check and validate.

The response for that request will be...

Azure Machine Learning support

This application is prepared to be used side-by-side with a Azure Machine Learning application. When the algorithm do not know the correction of a specific word, it will add the word in a list and, after the execution, it will send the unknown words to the Machine Learning. The return of Machine Learning Endpoint will replace the words in the original list.

You can have many Machine Learning Endpoints in one application. To add them, use the appsettings.json file. In the MachineLearningEndpointSettings section, there are two sample objects that you must add endpoint URL and API key.

To use your Azure Machine Learning Endpoint, you must set the machineLearning parameter in the request's URL. The value of this parameter must be the name of endpoint configured in appsettings.json.

For example, we have an API called GenreByName configured.

"MachineLearningEndpointSettings": {
    "GenreByName": {
        "Url":  "https://machinelearning.micro$oft.com/api/endpoint",
        "ApiKey":  "1234567abcd=="

So, if you would like to use the Machine Learning like I said, you should call the API in the following manner.


If you do not want to use Machine Learning, do not put the machineLearning parameter in URL.

Docker support

This project is ready for be executed in (Linux) Docker containers. The provided Dockerfile will create the machine and exposes it by port 80.


Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.



Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
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NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
3.0.0 729 1/23/2019
2.2.0 629 1/19/2019