Mapping

Applies Bloblang transformations to messages. This is the most commonly used processor.

Field	Type	Description
Mapping	Bloblang	The Bloblang mapping to apply (required)

Common patterns:

• Rename and transform fields — root.full_name = this.first_name + " " + this.last_name
• Convert values — root.email = this.email.lowercase()
• Add timestamps — root.created_at = now()
• Filter messages — root = if this.status == "active" { this } else { deleted() }