Principle:Mage ai Mage ai Destination Configuration
| Knowledge Sources | |
|---|---|
| Domains | Data_Integration, ETL |
| Last Updated | 2026-02-09 00:00 GMT |
Overview
A configuration initialization pattern for Singer-compatible destination connectors that loads target connection credentials, batch processing settings, and operational mode flags.
Description
Destination Configuration initializes a Singer target (destination) with all parameters needed to receive and load data. It handles loading config from JSON files or inline JSON, setting up batch processing mode (accumulate records before export vs. process immediately), configuring input sources (stdin or file), and preparing internal state tracking dictionaries for schemas, validators, key_properties, bookmark_properties, and replication methods per stream.
Usage
Use this principle at the start of any destination data loading pipeline. It must execute before processing any Singer messages from stdin.
Theoretical Basis
Destination initialization prepares these internal registries:
- schemas - Maps stream name to JSON Schema for validation
- validators - Maps stream name to Draft4Validator for record checking
- key_properties - Maps stream name to primary key columns
- bookmark_properties - Maps stream name to replication key columns
- replication_methods - Maps stream name to FULL_TABLE/INCREMENTAL
- batch_processing - Controls whether records are accumulated in memory before export