Sharprompt

Interactive command-line based application framework for C#

Features

• Multi-platform support
• Supports the popular prompts (Input / Password / Select / etc)
• Supports model-based prompts
• Validation of input value
• Automatic generation of data source using Enum type
• Customizable symbols and color schema
• Unicode support (Multi-byte characters and Emoji😀🎉)

Installation

Install-Package Sharprompt

dotnet add package Sharprompt

// Simple input
var name = Prompt.Input<string>("What's your name?");
Console.WriteLine($"Hello, {name}!");

// Password input
var secret = Prompt.Password("Type new password", new[] { Validators.Required(), Validators.MinLength(8) });
Console.WriteLine("Password OK");

// Confirmation
var answer = Prompt.Confirm("Are you ready?", defaultValue: true);
Console.WriteLine($"Your answer is {answer}");

Examples

The project in the folder Sharprompt.Example contains all the samples. Please check it.

dotnet run --project Sharprompt.Example

Prompt types

Input

Takes a generic type parameter and performs type conversion as appropriate.

var name = Prompt.Input<string>("What's your name?");
Console.WriteLine($"Hello, {name}!");

var number = Prompt.Input<int>("Enter any number");
Console.WriteLine($"Input = {number}");

Confirm

var answer = Prompt.Confirm("Are you ready?");
Console.WriteLine($"Your answer is {answer}");

Password

var secret = Prompt.Password("Type new password");
Console.WriteLine("Password OK");

Select

var city = Prompt.Select("Select your city", new[] { "Seattle", "London", "Tokyo" });
Console.WriteLine($"Hello, {city}!");

MultiSelect (Checkbox)

var cities = Prompt.MultiSelect("Which cities would you like to visit?", new[] { "Seattle", "London", "Tokyo", "New York", "Singapore", "Shanghai" }, pageSize: 3);
Console.WriteLine($"You picked {string.Join(", ", cities)}");

List

var value = Prompt.List<string>("Please add item(s)");
Console.WriteLine($"You picked {string.Join(", ", value)}");

Bind (Model-based prompts)

// Input model definition
public class MyFormModel
{
    [Display(Name = "What's your name?")]
    [Required]
    public string Name { get; set; }

    [Display(Name = "Type new password")]
    [DataType(DataType.Password)]
    [Required]
    [MinLength(8)]
    public string Password { get; set; }

    [Display(Name = "Select your city")]
    [Required]
    [InlineItems("Seattle", "London", "Tokyo")]
    public string City { get; set; }

    [Display(Name = "Are you ready?")]
    public bool? Ready { get; set; }
}

var result = Prompt.Bind<MyFormModel>();

Configuration

Symbols

Prompt.Symbols.Prompt = new Symbol("🤔", "?");
Prompt.Symbols.Done = new Symbol("😎", "V");
Prompt.Symbols.Error = new Symbol("😱", ">>");

var name = Prompt.Input<string>("What's your name?");
Console.WriteLine($"Hello, {name}!");

Color schema

Prompt.ColorSchema.Answer = ConsoleColor.DarkRed;
Prompt.ColorSchema.Select = ConsoleColor.DarkCyan;

var name = Prompt.Input<string>("What's your name?");
Console.WriteLine($"Hello, {name}!");

Cancellation support

// Throw an exception when canceling with Ctrl-C
Prompt.ThrowExceptionOnCancel = true;

try
{
    var name = Prompt.Input<string>("What's your name?");
    Console.WriteLine($"Hello, {name}!");
}
catch (PromptCanceledException ex)
{
    Console.WriteLine("Prompt canceled");
}

Features

Enum type support

public enum MyEnum
{
    [Display(Name = "First value")]
    First,
    [Display(Name = "Second value")]
    Second,
    [Display(Name = "Third value")]
    Third
}

var value = Prompt.Select<MyEnum>("Select enum value");
Console.WriteLine($"You selected {value}");

Unicode support

// Prefer UTF-8 as the output encoding
Console.OutputEncoding = Encoding.UTF8;

var name = Prompt.Input<string>("What's your name?");
Console.WriteLine($"Hello, {name}!");

Fluent interface support

using Sharprompt.Fluent;

// Use fluent interface
var city = Prompt.Select<string>(o => o.WithMessage("Select your city")
                                       .WithItems(new[] { "Seattle", "London", "Tokyo" })
                                       .WithDefaultValue("Seattle"));

Supported platforms

• Windows
  • Command Prompt
  • PowerShell
  • Windows Terminal
• Linux (Ubuntu, etc)
  • Windows Terminal (WSL 2)
• macOS
  • Terminal.app

License

This project is licensed under the MIT License