Expressions

Expressions use ${ ... } syntax with jq-style paths to access and transform data.

Basics

config:
  name: "${ .input.name }"         # access input field
  count: "${ .items | length }"    # pipe to jq function
  upper: "${ .name | ascii_upcase }"

Context paths

Path	Description
.	Current workflow context (root)
.field	Access a field
.nested.field	Nested access
.array[0]	Array index
`.items	length`

In filters

config:
  filter: "org_id = '${ .org_id }' AND status = 'active'"

In step fields

- name: dynamic
  type: call:http
  config:
    method: POST
    endpoint:
      uri: "https://api.example.com/${ .entity }/${ .id }"
    body:
      updated_at: "${ now() }"

export.as

Controls how step output merges into the workflow context:

export.as: "."              # merge all output fields into root
export.as: ".result"        # store output under .result
export.as: "{count: .total}" # transform and rename