Daml.Runtime 0.4.1-preview.1

Prefix Reserved

This is a prerelease version of Daml.Runtime.

dotnet add package Daml.Runtime --version 0.4.1-preview.1

NuGet\Install-Package Daml.Runtime -Version 0.4.1-preview.1

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="Daml.Runtime" Version="0.4.1-preview.1" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Daml.Runtime" Version="0.4.1-preview.1" />
                    

                            Directory.Packages.props

<PackageReference Include="Daml.Runtime" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Daml.Runtime --version 0.4.1-preview.1

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Daml.Runtime, 0.4.1-preview.1"

#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.

#:package Daml.Runtime@0.4.1-preview.1

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Daml.Runtime&version=0.4.1-preview.1&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=Daml.Runtime&version=0.4.1-preview.1&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Daml.Runtime

Runtime library for Daml C# code generation. This package provides the base types and serialization support required by C# code generated from Daml templates.

Installation

dotnet add package Daml.Runtime

Usage

This package is automatically referenced by code generated by the Daml C# code generator (e.g. via dpm codegen-cs). You typically don't need to use it directly unless you're:

Building custom serialization logic
Working with the Ledger API directly
Creating utility libraries for Daml contracts

Working with Generated Types

Generated template classes implement ITemplate and provide:

Strongly-typed contract creation
Choice exercise methods
JSON serialization/deserialization
Contract ID types

Given a Daml Iou template with a Transfer choice, the generated code is used like this (taken from the compiled samples/QuickstartExample):

using Daml.Runtime.Commands;
using Daml.Runtime.Data;
using Quickstart;

var alice = new Party("Alice::1220deadbeef");
var charlie = new Party("Charlie::1220deadbeef");

var iou = new Iou(
    Issuer: alice,
    Owner: new Party("Bob::1220deadbeef"),
    Currency: "USD",
    Amount: 1000.00m
);

var createCmd = CreateCommand.For(iou);

var contractId = new Iou.ContractId("00abc123");
var exerciseCmd = ExerciseCommand.For(
    contractId,
    Iou.ChoiceTransfer.Name,
    new Iou.Transfer(NewOwner: charlie).ToRecord());

var submission = CommandsSubmission.Single(createCmd)
    .WithActAs(alice)
    .WithWorkflowId(new WorkflowId("iou-issuance"))
    .WithCommandId(new CommandId(Guid.NewGuid().ToString()));

Manual Serialization

If you need to work with Daml values directly:

using Daml.Runtime.Data;
using Daml.Runtime.Serialization;

var record = DamlRecord.Create(
    DamlField.Create("name", new DamlText("Alice")),
    DamlField.Create("amount", new DamlNumeric(42.5m))
);

var json = DamlJsonSerializer.Serialize(record);

var parsed = DamlJsonSerializer.DeserializeRecord(json);

Type Mappings

Daml Type	Generated C# Type	Runtime backing
`Int`	`long`	`DamlInt64`
`Numeric n`	`decimal`	`DamlNumeric`
`Text`	`string`	`DamlText`
`Bool`	`bool`	`DamlBool`
`Party`	`Party`	`DamlParty`
`Date`	`DateOnly`	`DamlDate`
`Time`	`DateTimeOffset`	`DamlTimestamp`
`ContractId T`	`ContractId<T>`	`DamlContractId`
`Optional a`	`T?`	`DamlOptional`
`List a`	`IReadOnlyList<T>`	`DamlList`
`TextMap a`	`IReadOnlyDictionary<string, T>`	`DamlTextMap`

License

Apache-2.0

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- No dependencies.

NuGet packages (47)

Showing the top 5 NuGet packages that depend on Daml.Runtime:

Package	Downloads
Daml.Ledger.Abstractions Transport-agnostic abstractions for Daml ledger clients. Defines ILedgerClient, the contract any Daml ledger transport (gRPC Canton, planned HTTP REST, in-memory test fake) implements.	3.1K
Splice.Api.Token.Metadata.V1 C# bindings for Daml package splice-api-token-metadata-v1	2.3K
Splice.Api.Token.Holding.V1 C# bindings for Daml package splice-api-token-holding-v1	1.1K
Splice.Api.Token.Allocation.V1 C# bindings for Daml package splice-api-token-allocation-v1	986
Splice.Api.Token.Transfer.Instruction.V1 C# bindings for Daml package splice-api-token-transfer-instruction-v1	875

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
0.4.1-preview.1	237	7/25/2026
0.4.0-preview.3	300	7/19/2026
0.4.0-preview.2	377	7/18/2026
0.4.0-preview.1	287	7/17/2026
0.3.0-preview.1	356	7/4/2026
0.2.0-preview.3	230	7/3/2026
0.2.0-preview.2	232	7/2/2026
0.1.8-preview.5	286	6/24/2026
0.1.8-preview.4	246	6/23/2026
0.1.8-preview.2	480	6/12/2026
0.1.8-preview.1	79	6/11/2026