EdjCase.ICP.Candid 6.1.2

dotnet add package EdjCase.ICP.Candid --version 6.1.2                
NuGet\Install-Package EdjCase.ICP.Candid -Version 6.1.2                
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="EdjCase.ICP.Candid" Version="6.1.2" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add EdjCase.ICP.Candid --version 6.1.2                
#r "nuget: EdjCase.ICP.Candid, 6.1.2"                
#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 EdjCase.ICP.Candid as a Cake Addin
#addin nuget:?package=EdjCase.ICP.Candid&version=6.1.2

// Install EdjCase.ICP.Candid as a Cake Tool
#tool nuget:?package=EdjCase.ICP.Candid&version=6.1.2                

Candid - Library of Candid Encoding, Models and Helpers

Using Native Candid Types

  • CandidArg is the set of candid typed value parameters that is sent to a IC canister for a request
  • CandidTypedValue is the combo of a CandidValue and its corresponding CandidType
  • CandidValue is a raw candid value
  • CandidType is the type definition of a candid type

Create Type

Some Examples:

// Nat (positive integer)
CandidType natType = CandidType.Nat(); // shorthand for `new CandidPrimitiveType(PrimitiveType.Nat)`

// Text (string)
CandidType textType = CandidType.Text(); // shorthand for `new CandidPrimitiveType(PrimitiveType.Text)`

// Opt (optional/nullable) Principal (identifier)
CandidType optionalPrincipalType = CandidType.Opt(CandidType.Principal());

// Record (dictionary/object)
CandidType recordType = new CandidRecordType(new Dictionary<CandidTag, CandidType>
{
    { CandidTag.FromName("name"), CandidType.Text() },
    { CandidTag.FromName("age"), CandidType.Nat() }
});

// Variant (union)
CandidType variantType = new CandidVariantType(new Dictionary<CandidTag, CandidType>
{
    { CandidTag.FromName("option1"), CandidType.Bool() },
    { CandidTag.FromName("option2"), CandidType.Null() }
});

// Vec (list/array) of Float32
CandidType float32Vec = new CandidVectorType(CandidType.Float32());

Create Value

Some Examples:

// Nat (positive integer)
CandidValue natType = CandidValue.Nat(4);

// Text (string)
CandidValue textType = CandidValue.Text("SomeText");

// Opt (optional/nullable) Principal (identifier)
CandidValue optionalPrincipalType = new CandidOptional(CandidValue.Principal(Principal.Anonymous()));

// Record (dictionary/object)
CandidValue recordType = new CandidRecord(new Dictionary<CandidTag, CandidValue>
{
    { CandidTag.FromName("name"), CandidValue.Text("Name1") },
    { CandidTag.FromName("age"), CandidValue.Nat(21) }
});

// Variant (union)
CandidValue variantType = new CandidVariant("option1", CandidValue.Bool(true));

// Vec (list/array) of Float32
CandidValue float32Vec = new CandidVector(new CandidValue[]
{
    CandidValue.Float32(1.1f),
    CandidValue.Float32(2.2f),
    CandidValue.Float32(3.3f)
});

Parse From bytes

When candid is encoded, its in the form of a CandidArg. Individual values and types are not usually encoded

CandidArg arg = CandidByteParser.Parse(rawCandidBytes);

OR

CandidArg arg = CandidArg.FromBytes(rawCandidBytes);

Reading Values (without custom types)

// Assume arg is `(Nat, record { title : Text; length : Nat; })`
CandidArg arg = ...;
CandidTypedValue firstTypedValue = arg.Values[0];
UnboundedUInt natValue = firstTypedValue.Value.AsNat();
CandidTypedValue secondTypedValue = arg.Values[1];
CandidRecord recordValue = secondTypedValue.Value.AsRecord();
string title = recordValue["title"].AsText();
UnboundedUInt length = recordValue["length"].AsNat();

Using Self Defined Types

Self defined types are helpful for predefining classes to the candid schema of an endpoint. This can be done manually (as shown below) or done automattically with the ClientGenerator

From Candid To Self Defined Type

Single argument:

CandidArg arg = ...;
MyObj1 obj = arg.ToObjects<MyObj1>();

Multi arguments:

CandidArg arg = ...;
(MyObj1 obj, MyObj2 obj2) = arg.ToObjects<MyObj1, MyObj2>();

To Candid From Self Defined Type

// Serialze
MyObj obj = new MyObj
{
    Title = "Title 1",
    IsGoodTitle = false
};
CandidTypedValue value = CandidTypedValue.FromObject(obj);

Defining Variant Types

[Variant] // Required to flag as variant
public class MyVariant
{
	[VariantTagProperty] // Flag for tag/enum property, not required if name is `Tag`
	public MyVariantTag Tag { get; set; }
	[VariantValueProperty] // Flag for value property, not required if name is `Value`
	public object? Value { get; set; }


	// This method is used to specify if the option has a type/value associated
	[VariantOption("o2")] // Specify the candid tag if different than 'As{CandidTag}' like 'Option2' here
	public string AsOption2()
	{
		return (string)this.Value!;
	}
}

public enum MyVariantTag
{
    [CandidName("o1")] // Used to override name for candid
    Option1,
    [CandidName("o2")]
    Option2
}

Or if variant options have no type, just an Enum can be used

public enum MyVariant
{
    [CandidName("o1")]
    Option1,
    [CandidName("o2")]
    Option2
}

Defining Record Types

public class MyRecord
{
    [CandidName("title")] // Used to override name for candid
    public string Title { get; set; }
    [CandidName("is_good_title")]
    public bool IsGoodTitle { get; set; }
}

NOTE: [CandidName(...)] is not needed if the property name is exactly the same as the candid name

// Equivalent to above
public class MyRecord
{
    public string title { get; set; }
    public bool is_good_title { get; set; }
}

Defining Other Types

(C# type) -> (Candid type)

UnboundedUInt -> Nat
byte -> Nat8
ushort -> Nat16
uint -> Nat32
ulong -> Nat64
UnboundedInt -> Int
sbyte -> Int8
short -> Int16
int -> Int32
long -> Int64
string -> Text
float -> Float32
double -> Float64
bool -> Bool
Principal -> Principal
List<T> -> Vec T
T[] -> Vec T
CandidFunc -> Func
OptionalValue<T> -> Opt T
EmptyValue -> Empty
ReservedValue -> Reserved
NullValue -> Null
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 netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on EdjCase.ICP.Candid:

Package Downloads
EdjCase.ICP.Agent

Package Description

EdjCase.ICP.InternetIdentity

Package Description

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
6.1.2 756 4/30/2024
6.1.1 143 4/17/2024
6.1.0 128 4/15/2024
6.0.0 165 3/21/2024
5.1.0 227 1/25/2024
5.0.0 1,170 1/12/2024
5.0.0-pre.2 113 12/13/2023
5.0.0-pre.1 66 12/11/2023
4.1.0 471 11/10/2023
4.0.1 257 11/1/2023
4.0.0 384 10/12/2023
4.0.0-pre.10 74 10/10/2023
4.0.0-pre.9 68 10/10/2023
4.0.0-pre.8 74 10/9/2023
4.0.0-pre.7 64 10/9/2023
4.0.0-pre.6 68 10/9/2023
4.0.0-pre.5 68 10/8/2023
4.0.0-pre.4 77 10/6/2023
4.0.0-pre.3 66 10/5/2023
4.0.0-pre.2 72 9/27/2023
4.0.0-pre.1 69 9/25/2023
3.2.2 510 9/22/2023
3.2.1 195 9/22/2023
3.2.0 783 8/2/2023
3.1.5 187 9/27/2023
3.1.4 356 7/20/2023
3.1.3 729 6/12/2023
3.1.2 1,217 5/11/2023
3.1.1 368 5/9/2023
3.1.0 293 5/9/2023
3.0.1 330 5/2/2023
3.0.0 297 5/1/2023
3.0.0-beta.1 108 4/17/2023
2.3.9 275 5/1/2023
2.3.8 309 4/28/2023
2.3.7 297 4/28/2023
2.3.6 303 4/28/2023
2.3.5 347 4/27/2023
2.3.4 323 4/27/2023
2.3.3 339 4/26/2023
2.3.2 332 4/26/2023
2.3.1 464 4/26/2023
2.3.0 343 4/25/2023
2.2.10 355 4/24/2023
2.2.9 322 4/24/2023
2.2.8 338 4/24/2023
2.2.7 575 4/17/2023
2.2.6 656 4/12/2023
2.2.5 368 4/12/2023
2.2.4 456 4/11/2023
2.2.3 366 4/11/2023
2.2.2 440 4/7/2023
2.2.1 386 4/7/2023
2.2.0 418 4/6/2023
2.1.1 552 3/30/2023
2.1.0 669 3/23/2023
2.0.8 496 3/20/2023
2.0.7 565 3/12/2023
2.0.6 273 3/12/2023
2.0.5 251 3/12/2023
2.0.4 284 3/12/2023
2.0.3 265 3/12/2023
2.0.2 481 3/10/2023
2.0.1 481 3/10/2023
2.0.0 511 3/8/2023
2.0.0-beta.26 111 3/8/2023
2.0.0-beta.25 110 3/8/2023
2.0.0-beta.24 117 3/7/2023
2.0.0-beta.23 115 3/6/2023
2.0.0-beta.22 111 3/1/2023
2.0.0-beta.21 111 2/28/2023
2.0.0-beta.20 126 2/20/2023
2.0.0-beta.19 116 2/14/2023
2.0.0-beta.18 112 2/14/2023
2.0.0-beta.17 119 2/14/2023
2.0.0-beta.16 117 2/11/2023
2.0.0-beta.15 122 2/10/2023
2.0.0-beta.14 126 2/6/2023
2.0.0-beta.13 128 2/3/2023
2.0.0-beta.12 136 2/2/2023
2.0.0-beta.11 141 1/30/2023
2.0.0-beta.10 134 1/23/2023
2.0.0-beta.9 144 1/19/2023
2.0.0-beta.8 130 1/19/2023
2.0.0-beta.7 143 1/12/2023
2.0.0-beta.6 130 12/31/2022
2.0.0-beta.5 124 12/30/2022
2.0.0-beta.4 129 12/21/2022
2.0.0-beta.3 129 12/19/2022
2.0.0-beta.2 128 12/10/2022
2.0.0-beta.1 131 12/2/2022
1.2.1 661 11/29/2022
1.2.0 621 11/28/2022
1.1.0 632 11/28/2022
1.0.3 624 11/25/2022
1.0.2 789 6/8/2022
1.0.1 824 6/7/2022
0.0.1-beta.20 163 6/1/2022
0.0.1-beta.19 161 5/20/2022
0.0.1-beta.18 156 5/20/2022
0.0.1-beta.14 171 5/19/2022
0.0.1-beta.13 163 5/18/2022
0.0.1-beta.2 194 5/16/2022
0.0.1-beta.1 177 5/11/2022