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Fortnox

Fortnox Topics WebSocket API

Duplex WebSocket stream at wss://ws.fortnox.se/topics-v1 that pushes minimal change-notification events across domains (invoices, supplier-invoices, customers, articles, orders, offers, vouchers, projects, and more) so integrations react to changes instead of polling the REST API. Kafka-backed, at-least-once delivery, with per-topic offsets and up to 14-day replay.

Documentation Provider Profile APIs.io AsyncAPI GitHub

Fortnox Topics WebSocket API is one of 12 APIs that Fortnox publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include WebSocket, Event, and Change Notifications. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

This event API exposes 2 operations across 1 channel, and defines 4 schemas. It is described by AsyncAPI 2.6.0, at version 1.0.0.

The API connects through a single server, ws.fortnox.se/topics-v1 (wss).

2 operations 1 channels 4 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
1.0.0
Base URL
wss://ws.fortnox.se/topics-v1
Contact
API Evangelist
License
Fortnox API License / Terms
Resource Areas
1

Channels & Operations 2

Across 1 channel, the API surfaces 2 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 2
SUB
/topics-v1
Receive pushed change-notification events.
receiveTopicEvent body
PUB
/topics-v1
Send a control command to the WebSocket (e.g. add tenants).
sendCommand body

Messages & Schemas 4

The contract defines 4 schemas that model the data carried by its messages. The most detailed are TopicEvent (6 properties), AddTenantsCommand (5 properties). Each schema is shown below with its type and property counts.

AddTenantsCommand
message
Subscribe one or more tenants (integration keys) to the stream.
TopicEvent
message
A minimal "what changed" event on a domain topic.
AddTenantsCommand
object
Client command to add tenants (integration keys) to the connection.
5 properties 3 required
TopicEvent
object
A minimal change-notification event. Carries what happened, not the full record; call the REST API to retrieve details. Some event types include additional opt…
6 properties 6 required

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

fortnox-asyncapi.yml Raw ↑

Other APIs Fortnox publishes across the network.

Fortnox Accounts API
AE Profile APIs.io
Fortnox Articles API
AE Profile APIs.io
Fortnox Customers API
AE Profile APIs.io
Fortnox Financial Years API
AE Profile APIs.io
Fortnox Invoices API
AE Profile APIs.io
Fortnox Offers API
AE Profile APIs.io
Fortnox Orders API
AE Profile APIs.io
Fortnox Projects API
AE Profile APIs.io
Fortnox Supplier Invoices API
AE Profile APIs.io
Fortnox Suppliers API
AE Profile APIs.io
Fortnox Vouchers API
AE Profile APIs.io
#WebSocket#Event#Change Notifications
← Back to F APIs
API Details
ID
fortnox:fortnox-topics-websocket-api
Base URL
wss://ws.fortnox.se/topics-v1
Docs
https://www.fortnox.se/developer/guides-and-good-to-know/websockets
Provider
Fortnox
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