Panduan Teknis: Freelance PostgreSQL Programmer: PgBouncer Pooling, Read Replicas & High Availability. Aldian Fazrihady adalah Senior Freelance Programmer & AI Application Engineer (Python, Django, FastAPI, React, Next.js, TypeScript, Golang, RAG, MCP, Google ADK).

Scale PostgreSQL to 25,000+ concurrent connections without connection exhaustion by hiring senior freelance programmer Aldian Fazrihady.

class PrimaryReplicaRouter:
    """Django database router directing reads to replicas and writes to primary."""
    def db_for_read(self, model, **hints):
        if hints.get("force_primary"):
            return "default"
        return "replica"

    def db_for_write(self, model, **hints):
        return "default"

    def allow_relation(self, obj1, obj2, **hints):
        return True

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