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OfficialCanton Network docs · Troubleshooting

Common Questions

…from Daml packages • JavaScript/TypeScript can use the JSON API (HTTP) or gRPC client libraries. The cn-quickstart includes a TypeScript frontend as a reference • Python and Go can…

OfficialCanton Network docs · Ledger API › OpenAPI

GET /v2/authenticated-user

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/authenticated-user' \ --header 'Authorization: Bearer $TOKEN' import json import reques…

OfficialCanton Network docs · Release Notes › Canton

…eased on July 01, 2026. Summary This release provides a new Ledger API endpoint to obtain command completions and fixes a number of minor issues. What’s New New GetCompletions endp…

OfficialCanton Network docs · API Overview

Splice nodes expose REST APIs that are separate from the Ledger API and the Admin API . These APIs are served by the Splice application layer run…

OfficialCanton Network docs · Module 6: Smart Contract Upgrades

Package Selection

…ailable. How Version Resolution Works Every contract on the ledger is associated with the package version that created it. When you fetch or exercise a contract, the runtime uses t…

OfficialCanton Network docs · Ledger API › OpenAPI

GET /v2/users/:user-id

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/users/{user-id}' \ --header 'Authorization: Bearer $TOKEN' import json import requests …

OfficialCanton Network docs · Ledger API › OpenAPI

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'http://localhost:7575/v2/idps' \ --header 'Authorization: Bearer $TOKEN' \ --header 'Content-Type: application/…

OfficialCanton Network docs · CLI Tools

dpm (Daml Package Manager)

dpm is the command-line interface for Canton development. It manages SDK installation, project scaffolding, compilation, testing, code generation, and local development environment…

OfficialCanton Network docs · Ledger API › OpenAPI

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/users' \ --header 'Authorization: Bearer $TOKEN' import json import requests url = "…

OfficialCanton Network docs · Ledger API › OpenAPI

POST /v2/commands/submit-and-wait-for-transaction

…: 123, "nanos": 123, "unknownFields": "<object>" } } }, "minLedgerTimeAbs": "<string>", "minLedgerTimeRel": { "seconds": 123, "nanos": 123, "unknownFields": { "fields": {} } }, "su…

OfficialCanton Network docs · Ledger API › AsyncAPI › v2/commands/completions

Publish completions

JSON API AsyncAPI › /v2/commands/completions › publish /v2/commands/completions Publish completions WebSocket Updated 3.5 PUB…

OfficialCanton Network docs · Ledger API › OpenAPI

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/idps' \ --header 'Authorization: Bearer $TOKEN' import json import requests url = "…

OfficialCanton Network docs · Daml Standard Library › Modules

…ort errors that are independent of the current state of the ledger, and should thus not be retried. Corresponds to the gRPC status code INVALID_ARGUMENT. See …

OfficialCanton Network docs · Deep Dives

Multi-Party Applications and Workflows

The purpose of this page is to: • Introduce you to the importance and problems of multi-party applications. • Provide a high-level overview of how Canton can help you build and run…

OfficialCanton Network docs · Production Operations

Canton Node Backup and Restore

…nt than that of the sequencer’s, as that would constitute a ledger fork. Therefore, if you back up both participant, mediator and sequencer databases sequentially, the following co…

OfficialCanton Network docs · Ledger API › OpenAPI

POST /v2/commands/submit-and-wait

…: 123, "unknownFields": { "fields": "<object>" } } } }, "minLedgerTimeAbs": "<string>", "minLedgerTimeRel": { "seconds": 123, "nanos": 123, "unknownFields": { "fields": {} } }, "su…

OfficialCanton Network docs · Ledger API › OpenAPI

POST /v2/updates/transaction-by-id

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'http://localhost:7575/v2/updates/transaction-by-id' \ --header 'Authorization: Bearer $TOKEN' \ --header 'Conte…

OfficialCanton Network docs · Ledger API › AsyncAPI

/v2/commands/completions

Back to overview AsyncAPI Channel /v2/commands/completions Deprecated: please use GetCompletions instead. Subscribe to command completion even…

OfficialCanton Network docs · Reference

Admin API Reference

The Admin API provides administrative access to Canton participant, sequencer, and mediator nodes. It is used for node configurati…

OfficialCanton Network docs · dApp API

Back to overview OpenRPC Spec Sync dApp API An OpenRPC specification for the dapp to interact with a Wallet Provider. JSON-RPC Added 1.4.0 Updated 1.4.0 Latest …

OfficialCanton Network docs · Ledger API › OpenAPI

GET /v2/idps/:idp-id

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/idps/{idp-id}' \ --header 'Authorization: Bearer $TOKEN' import json import requests ur…

OfficialCanton Network docs · Ledger API › AsyncAPI › v2/commands/command-completions

Publish command completions

JSON API AsyncAPI › /v2/commands/command-completions › publish /v2/commands/command-completions Publish command completions W…

OfficialCanton Network docs · Ledger API › AsyncAPI › v2/updates/flats

JSON API AsyncAPI › /v2/updates/flats › publish /v2/updates/flats Publish flats WebSocket Updated 3.5 PUBLISH /v2/updates/fla…

OfficialCanton Network docs · Ledger API › AsyncAPI › v2/updates/trees

JSON API AsyncAPI › /v2/updates/trees › publish /v2/updates/trees Publish trees WebSocket Updated 3.5 PUBLISH /v2/updates/tre…

OfficialCanton Network docs · Wallet Gateway › Use the Wallet Gateway

Approve & Sign Transactions

…hrough the dApp SDK , which calls the Wallet Gateway’s dApp API. The Wallet Gateway prepares it against your validator, queues it for your approval, has your signing provider sign …

OfficialCanton Network docs · Validator Deployment › Deployment Options

Kubernetes Validator Deployment

This section describes how to deploy a standalone validator node in Kubernetes using Helm charts. The Helm charts deploy a validator node along with associated wallet and CNS UIs, …

OfficialCanton Network docs · Ledger API › OpenAPI

GET /v2/parties/participant-id

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/parties/participant-id' \ --header 'Authorization: Bearer $TOKEN' import json import re…

OfficialCanton Network docs · Ledger API › OpenAPI

POST /v2/updates/transaction-by-offset

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'http://localhost:7575/v2/updates/transaction-by-offset' \ --header 'Authorization: Bearer $TOKEN' \ --header 'C…

OfficialCanton Network docs · Ledger API › OpenAPI

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'http://localhost:7575/v2/users' \ --header 'Authorization: Bearer $TOKEN' \ --header 'Content-Type: application…

OfficialCanton Network docs · Module 3: Daml Smart Contracts

Testing Daml Contracts

…y to asset-tests, asset is meant to be uploaded to a Canton ledger. Similarly multi-trade contains the MultiTrade template, and multi-trade-tests contains the corresponding scripts…

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