Reactors

Commands for managing Reactors.

List Reactors

bt reactors

Lists all Reactors in your tenant with pagination. When run interactively, selecting a Reactor provides options to view details, stream logs, or delete.

Flags

Flag	Short	Type	Default	Description
--management-key	-x	string	BT_MANAGEMENT_KEY env var	Management API key
--page	-p	integer	1	Page number to fetch

Required Permissions

reactor:read

Example

bt reactors -p 2

---

Create Reactor

bt reactors create

Creates a new Reactor. When flags are omitted, the CLI will interactively prompt for required values.

Flags

Basic

Flag	Short	Type	Default	Description
--management-key	-x	string	BT_MANAGEMENT_KEY env var	Management API key
--name	-n	string	(prompted)	Name of the Reactor
--code	-r	file path	(prompted)	Path to JavaScript file containing reactor code
--application-id	-i	string	—	Optional Application ID. Only supported for the node-bt runtime.
--configuration	-c	file path	—	Path to .env format configuration file

Runtime

The node-bt runtime is deprecated. Use a Node.js runtime image for new Reactors and Proxy code transforms. Migrate away from the node-bt runtime as soon as possible to avoid disruption.

Flag	Type	Default	Description
--image	string	None	Runtime image. If omitted, the CLI prompts you to select one. Use a Node.js runtime image for new Reactors.
--timeout	integer	10	Timeout in seconds, 10 to 900 (Node.js runtime images only; maximum 30 when runtime async is disabled)
--warm-concurrency	integer	0	Number of warm instances. The default quota is 0 for Test tenants and 1 for Production tenants. Request a higher quota if needed. (Node.js runtime images only)
--resources	string	standard	Resource tier: standard, large, xlarge (Node.js runtime images only)
--package-json	file path	-	Path to a package.json file specifying dependencies (Node.js runtime images only)
--permissions	string[]	—	Permission grants, repeatable (Node.js runtime images only)
--[no-]async	boolean	false	Enable or disable asynchronous Reactor execution (Node.js runtime images only)

Advanced

Flag	Type	Default	Description
--no-wait	boolean	false	Don't wait for Reactor provisioning to complete

--async configures asynchronous Reactor execution. It is independent from --no-wait, which controls whether the CLI waits for provisioning.

Required Permissions

reactor:create

Examples

Create a Reactor with the node24 runtime image:

bt reactors create \
  -n "My Reactor" \
  -r ./reactor.js \
  --image node24 \
  --package-json ./package.json \
  --timeout 20 \
  --permissions "token:read" \
  --permissions "token:create"

Create an asynchronous Reactor with the node24 runtime image:

bt reactors create \
  -n "My Async Reactor" \
  -r ./reactor.js \
  --image node24 \
  --async \
  --timeout 900

Create a Reactor with the deprecated node-bt runtime:

bt reactors create \
  -n "My Reactor" \
  -r ./reactor.js \
  -i "your-application-id" \
  --image node-bt

---

Update Reactor

bt reactors update <id>

Updates an existing Reactor.

Arguments

Argument	Required	Description
id	Yes	The Reactor ID to update

Flags

All flags from Create Reactor, plus:

Flag	Short	Type	Default	Description
--watch	-w	boolean	false	Watch code and configuration files for changes and auto-update
--logs	-l	boolean	false	Stream logs after update

The --watch flag monitors your code and configuration files for changes, automatically redeploying when files are saved. This is useful during development.

Required Permissions

reactor:update

Examples

Update and watch for file changes:

bt reactors update 03858bf5-32d3-4a2e-b74b-daeea0883bca \
  -r ./reactor.js \
  -w

Update and stream logs:

bt reactors update 03858bf5-32d3-4a2e-b74b-daeea0883bca \
  -r ./reactor.js \
  -l

Disable asynchronous execution and set a synchronous timeout:

bt reactors update 03858bf5-32d3-4a2e-b74b-daeea0883bca \
  --no-async \
  --timeout 30

---

Delete Reactor

bt reactors delete <id>

Deletes a Reactor. By default, the CLI will prompt for confirmation before deleting.

Arguments

Argument	Required	Description
id	Yes	The Reactor ID to delete

Flags

Flag	Short	Type	Default	Description
--management-key	-x	string	BT_MANAGEMENT_KEY env var	Management API key
--yes	-y	boolean	false	Skip confirmation prompt

Required Permissions

reactor:delete

Example

bt reactors delete 03858bf5-32d3-4a2e-b74b-daeea0883bca -y

---

Reactor Logs

bt reactors logs [id]

Streams real-time logs from a Reactor. If no ID is provided, the CLI will prompt you to select a Reactor from a list.

Arguments

Argument	Required	Description
id	No	The Reactor ID to stream logs from

Flags

Flag	Short	Type	Default	Description
--management-key	-x	string	BT_MANAGEMENT_KEY env var	Management API key
--port	-p	integer	—	Port for the local logs server

Streaming Reactor logs requires reactor:update permission, not just reactor:read.

Required Permissions

reactor:update

Example

bt reactors logs 03858bf5-32d3-4a2e-b74b-daeea0883bca -p 3000