- Overview
- Tutorials
- Getting started
- Get started with Canton and the JSON Ledger API
- Get Started with Canton, the JSON Ledger API, TypeScript and WebSockets
- Get Started with Canton, the JSON Ledger API, and TypeScript
- Get started with Canton Network App Dev Quickstart
- Using the JSON Ledger API
- Deploy Quickstart to DevNet
- Appendix
- Get started with smart contract development
- Basic contracts
- Test templates using Daml scripts
- Build the Daml Archive (.dar) file
- Data types
- Transform contracts using choices
- Add constraints to a contract
- Parties and authority
- Compose choices
- Handle exceptions (Deprecated)
- Work with dependencies
- Functional programming 101
- The Daml standard library
- Test Daml contracts
- Next steps
- Interfaces
- Application development
- Getting started
- Development how-tos
- Component how-tos
- Explanations
- References
- Application development
- Smart contract development
- Daml language cheat sheet
- Daml language reference
- Overview: Template Structure
- Reference: Templates
- Reference: Choices
- Reference: Updates
- Reference: Data Types
- Reference: Built-in Functions
- Reference: Expressions
- Reference: Functions
- Reference: Daml File Structure
- Reference: Daml Packages
- Reference: Contract Keys
- Reference: Interfaces
- Reference: Exceptions (Deprecated)
- Reference: Serializable
- Fixity, Associativity and Precedence
- Daml standard library
- DA.Action.State.Class
- DA.Action.State
- DA.Action
- DA.Assert
- DA.Bifunctor
- DA.Crypto.Text
- DA.Date
- DA.Either
- DA.Exception
- DA.Fail
- DA.Foldable
- DA.Functor
- DA.Internal.Interface.AnyView.Types
- DA.Internal.Interface.AnyView
- DA.List.BuiltinOrder
- DA.List.Total
- DA.List
- DA.Logic
- DA.Map
- DA.Math
- DA.Monoid
- DA.NonEmpty.Types
- DA.NonEmpty
- DA.Numeric
- DA.Optional
- DA.Record
- DA.Semigroup
- DA.Set
- DA.Stack
- DA.Text
- DA.TextMap
- DA.Time
- DA.Traversable
- DA.Tuple
- DA.Validation
- DA.ContractKeys
- GHC.Show.Text
- GHC.Tuple.Check
- Prelude
- Daml Script
- Smart contract upgrading reference
- Glossary of concepts
DA.ContractKeys¶
Note: Docs TODO (https://github.com/digital-asset/daml/issues/22673)
Functions¶
- lookupNByKey
: HasLookupNByKey t k => Int -> k -> Update [(ContractId t, t)]
Look up up to n contracts associated with the passed key. Contracts created within a transaction are returned first (in recency order), then disclosed contracts, then nonlocal contracts.
You must pass the
tusing an explicit type application. For instance, if you want to query 3 contracts of templateAccountgiven by its keyk, you must call `lookupNByKey @Account 3 k.
- lookupAllByKey
: HasLookupNByKey t k => k -> Update [(ContractId t, t)]
Shorthand for
lookupNByKeywith n larger than the amount of contracts that can exist for a key (1000000), therefore returning all contracts