Docker Compose: HA JSON Replace Lite — Replace Substrings Inside JSON Strings for Home Assistant

A lightweight micro‑service that replaces substrings inside JSON string values. Perfect for cleaning up messy API responses, webhook payloads, and MQTT messages so Home Assistant receives clean, normalized text.

This Lite Edition supports nested paths and multiple replacement rules.

What This Service Does
-Accepts JSON via HTTP POST

-Replaces:

--prefixes

--suffixes

--substrings

--tokens

--repeated patterns

--formatting artifacts

-Supports nested paths

-Returns a clean JSON object with updated strings

-Ideal for REST sensors, dashboards, and automation preprocessing

Use Cases
-Remove prefixes like "WARN: " or "INFO: "

-Replace hyphens with spaces

-Clean up device names

-Normalize webhook payloads

-Fix inconsistent MQTT message formatting

-Prepare clean strings for dashboards

-Reduce template logic inside Home Assistant

FILES INCLUDED
-docker-compose.yml

-replace_rules.md

-sample_input.json

-sample_output.json