Mapping & Transformation

The mapping engine is the core of ApiLinker, allowing you to transform data structures between APIs.

Field Mapping

Define mappings in the mapping section:

mapping:
  - source: source_endpoint
    target: target_endpoint
    fields:
      - source: id
        target: external_id

Transformations

Apply transformations to modify data during sync.

- source: created_at
  target: timestamp
  transform: iso_to_timestamp

Built-in Transformers

• lowercase, uppercase, strip
• iso_to_timestamp, timestamp_to_iso
• to_int, to_float, to_bool
• json_parse, json_stringify

Conditional Mapping

Map fields only when specific conditions are met:

- source: status
  target: active
  condition:
    field: status
    operator: eq
    value: active