Other types

EmailAttachment

One file attached to an outgoing email.

Field	Type	Description
filename	string	Required. Filename shown to the recipient.
content	string	Required. The file contents. base64 by default — pair it with the b64_encode post-transform, which is also what makes binary files (PDF, images) work. Use encoding: utf8 to attach…
content_type	string (nullable)	MIME type, e.g. text/csv, application/pdf. Defaults to application/octet-stream.
encoding	string (nullable)	How content is encoded: base64 (default) or utf8.

WsPublish

Publish a payload to realtime WebSocket channels (server push / fan-out). Every socket subscribed to any listed channel — on this node AND every peer node — receives the payload. Fire-and-forget: it does not wait for delivery.

Example

- name: Broadcast
  ws_publish:
    channels: a|body::rooms|     # a string, an array, or an a|...| marker
    data: a|OrderAction|         # defaults to a|body| when omitted

Field	Type	Description
channels	any	Required. Channel key(s) to publish to: a string, an array of strings, or an a|... marker resolving to either.
data	any	The payload pushed to subscribers. An a|... marker or inline JSON. Defaults to the request/message body when omitted.
retain	any	Store the payload as the channel's RETAINED value, so a subscriber that connects (or reconnects) later immediately receives the current value on subscribe. Defaults to false.…

MqttPublish

A mqtt_publish action publishes a message from a pipeline to one or more MQTT topics. Every subscriber to a listed topic — on this node AND every peer node (via the realtime mesh) — receives the payload. This is the pipeline→topic direction (the inbound topic→pipeline direction is the ingest consumer). Fire-and-forget: it does not wait for broker acknowledgement.

Example

- name: Push
  mqtt_publish:
    topics: a|body::topic|      # a string, an array, or an a|...| marker
    data: a|Reading|            # defaults to a|body| when omitted
    qos: 1                      # 0 (default) | 1 | 2
    retain: false               # default false

Field	Type	Description
topics	any	Required. Topic(s) to publish to: a string, an array of strings, or an a|... marker resolving to either.
data	any	The payload published to subscribers. An a|... marker or inline JSON. A JSON string publishes as raw text; any other value publishes as its JSON encoding. Defaults to the…
qos	number (nullable)	MQTT quality of service for the published message: 0 (at most once, default), 1 (at least once), or 2 (exactly once).
retain	any	Whether the broker retains this message as the topic's last-known-good value, delivered to future subscribers on subscribe. Defaults to false. Accepts a literal boolean OR an…

TransformAggregate

Reduce a JSON array to a summary (sum / avg / min / max / count), optionally grouped.

Field	Type	Description
over	string (nullable)	JSONPath to the array to aggregate. Omit to aggregate the whole data when it is itself an array.
key	string (nullable)	Output field to hold the summary. Omit to replace the data with the summary.
sum	Array<string> (nullable)	Fields to sum.
avg	Array<string> (nullable)	Fields to average.
min	Array<string> (nullable)	Fields to take the minimum of.
max	Array<string> (nullable)	Fields to take the maximum of.
count	boolean (nullable)	Include a row count in the summary (default true when no other op is given).
group_by	Array<string> (nullable)	Group rows by these fields; the summary is computed per group under groups.

HmacSign

Parameters for the hmac post-transform (signing).

Example

hmac:
  key: signature
  data: a|BuildPayload::body|
  secret: a|Subscriber::secret|
  algorithm: sha256
  encoding: hex

Field	Type	Description
key	string	Required. Output key the computed digest is written to.
data	string	Required. The message to sign. Supports interpolation.
secret	string	Required. The signing secret. Supports interpolation — use a|ap_var::NAME| or a per-recipient secret read from a prior action.
algorithm	string (nullable)	Hash algorithm: sha1, sha256 (default), or sha512.
encoding	string (nullable)	Digest encoding: hex (default) or base64.