pyredis-om 0.9.2

A drop-in replacement for `redis-om`, built out of frustration.

Object mapping, and more, for Redis and Python

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Redis OM Python makes it easy to model Redis data in your Python applications.

Install the package from PyPI as pyredis-om, then import aredis_om for the async API or redis_om for the generated sync mirror. This release targets Pydantic v2.

📚 The full documentation lives in docs/, also at Docs Website. This README is just the essentials.

Table of contents

• 💡 Why Redis OM?
• ⚡ Why execute_command?
• 💻 Installation
• 🏁 Getting started
• 📇 Modeling your data
• 🔎 Queries, embedded models, and GEO
• 🧩 Pipelines and raw commands
• 📚 Documentation
• ❤️ Contributing
• 📝 License

💡 Why Redis OM?

Redis OM provides high-level abstractions that make it easy to model and query data in Redis with modern Python applications.

The current release includes:

• Declarative object mapping for Redis objects
• Declarative secondary-index generation
• Fluent APIs for querying Redis
• Async-first APIs with a generated sync mirror
• Lazy Meta.database resolution, callable connection providers, runtime reassignment
• Default model TTLs via Meta.default_ttl
• Bulk fetches with get_many(), explicit pipeline composition
• Redis Cluster (cluster=True or ?cluster=true in the URL)
• Embedded JSON sorting, GEO queries, vector similarity search (FLAT/HNSW)
• Embedded list containment queries (Workspace.users << User(name="John"))
• Comprehensive token escaping for TAG and TEXT fields
• GEO queries with Coordinates / GeoFilter, plus raw GEO* access — see docs/geo_queries.mdx
• Zero-downtime schema migrations via FT.ALIASUPDATE — opt in with Meta.zero_downtime_migrations = True to swap RediSearch indexes atomically without deleting documents and with no query-gap window; rolling-deploy-safe conservative mode plus explicit allow_forward_swap=True pre-deploy step — see docs/migrations.mdx
• AtomicCounter backed by Redis 8.8 INCREX — see docs/atomic_counter.mdx
• RedisArray for Redis 8.8+ sparse, index-addressable arrays — see docs/redis_arrays.mdx
• Hash field TTL (HEXPIRE / HGETEX / HGETDEL / HSETEX) on HashModel for Redis 7.4+ / 8.0+ — see docs/hash_field_ttl.mdx
• RedisStream wrapper around the X* family with 8.2/8.4/8.6/8.8 extensions (XACKDEL, XDELEX, XNACK, IDMP, XREADGROUP ... CLAIM) — see docs/streams.mdx
• AtomicString + MSETEX (SET IFEQ / IFNE, DELEX, DIGEST, bulk MSETEX) for Redis 8.4+ — see docs/atomic_strings.mdx
• Vector sets (VectorSet: VADD/VSIM/VINFO/VCARD/VEMB/VLINKS/VRANDMEMBER/VREM/VSETATTR/VGETATTR) for Redis 8.8+ — see docs/vector_sets.mdx
• Hot-keys tracker (HOTKEYS START/GET/STOP/RESET) for Redis 8.6+ — see docs/hotkeys.mdx
• Bitmap operators (BitmapOps: BITOP DIFF/DIFF1/ANDOR/ONE) for Redis 8.2+ — see docs/bitmap_ops.mdx
• Sorted set aggregations (SortedSetOps: ZUNION/ZINTER with AGGREGATE COUNT) for Redis 8.8+ — see docs/sorted_set_aggregations.mdx
• Cluster admin (ClusterAdmin: CLUSTER SLOT-STATS, CLUSTER MIGRATION ...) for Redis 8.2+ cluster mode — see docs/cluster_admin.mdx
• Keyspace notification helpers (KeyspaceEvents, build_flags, enable_keyspace_events) for Redis 2.8+ — see docs/keyspace_notifications.mdx
• OpenTelemetry observability wrapper around redis-py 8.0 instrumentation — see docs/observability.mdx

⚡ Why execute_command?

This fork deliberately does not wrap every redis-py high-level binding (db.ft(...).search(...), db.geoadd(...), etc.). For hot paths like RediSearch, INCREX, and the AR* array commands we call db.execute_command("FT.SEARCH", ...) (or "GEOADD", "INCREX", ...) directly.

Reason	What it means in practice
Faster	No per-call method dispatch or argument coercion; the command name and args go straight to the socket.
More predictable	Argument order matches the Redis command reference exactly. db.geoadd(... nx=True, xx=True) raised in some redis-py 5.x versions — execute_command doesn't.
Universal	Works the moment Redis ships a command. INCREX (Redis 8.8+), the AR* family (8.8+ preview), and FT.AGGREGATE WITHCURSOR options all worked here before redis-py shipped typed bindings.
Cluster-safe	The same call works on redis.Redis and redis.RedisCluster with no API differences.

The cost is that the caller is responsible for getting the argument order right. See docs/pipelines.mdx for tested examples.

💻 Installation

# pip
pip install pyredis-om

# uv
uv add pyredis-om

🏁 Getting started

Start Redis

docker run -p 6379:6379 redis:8-alpine

export REDIS_OM_URL="redis://localhost:6379?decode_responses=True"

The redis:8-alpine image includes the RedisJSON and RediSearch modules Redis OM needs for JSON and search features. See docs/redis_modules.mdx for other options including Redis Enterprise and OSS-only setups.

Connect

from aredis_om import get_redis_connection

redis_conn = get_redis_connection()
# Or pass an explicit URL:
redis_conn = get_redis_connection(url="redis://localhost:6379?decode_responses=True")

For Redis Cluster, see docs/cluster.mdx. For RESP2/RESP3 protocol negotiation, see docs/protocol.mdx.

Define, save, query

from redis_om import Field, HashModel, Migrator


class Customer(HashModel):
    first_name: str
    last_name: str = Field(index=True)
    age: int = Field(index=True)


Migrator().run()

andrew = Customer(first_name="Andrew", last_name="Brookins", age=38)
andrew.save()

# Reload by primary key
Customer.get(andrew.pk)

# Query — `<<` is the IN operator for TAG fields
Customer.find(Customer.last_name == "Brookins").all()
Customer.find(Customer.age >= 35).sort_by("age").page(offset=0, limit=10)

That's the whole shape. Full reference: docs/models.mdx, docs/queries.mdx.

📇 Modeling your data

Two model classes cover most needs:

from typing import Optional
from redis_om import HashModel, JsonModel, Field, EmbeddedJsonModel


class Customer(HashModel):
    first_name: str
    last_name: str = Field(index=True)
    age: int = Field(index=True)
    email: Optional[str] = Field(index=True, default=None)

• HashModel — flat, fast, stored as a Redis hash. No List/Dict fields.
• JsonModel — for nested structures, embedded models, List[T]/Dict[K, V].
• EmbeddedJsonModel — a sub-document for JsonModel.address style fields.

Full details, including the lazy Meta.database, Meta.default_ttl, vector fields, and embedded List[EmbeddedJsonModel]: docs/models.mdx.

🔎 Queries, embedded models, and GEO

# Equality, range, AND/OR/NOT
Customer.find(Customer.age >= 35).all()
Customer.find(
    (Customer.last_name == "Brookins") | (Customer.first_name == "Kim")
).all()

# IN / NOT IN on TAG fields
Customer.find(Customer.last_name << ["Brookins", "Smith"]).all()
Customer.find(Customer.last_name != "Brookins").all()

# Embedded JsonModel fields
Customer.find(Customer.address.city == "San Antonio").all()

# GEO queries
from redis_om import Coordinates, GeoFilter

class Store(HashModel):
    name: str = Field(index=True)
    coordinates: Coordinates = Field(index=True)

Store.find(
    Store.coordinates == GeoFilter(
        longitude=-73.9851, latitude=40.7589, radius=2, unit="mi",
    )
).all()

Full syntax — sorting, pagination, cursors, KNN vector search, prefix matches, embedded list containment, GEO + TAG combinations: docs/queries.mdx, docs/geo_queries.mdx.

🧩 Pipelines and raw commands

Compose model queries with raw Redis commands in one round trip:

from aredis_om import HashModel, Field

class Customer(HashModel):
    first_name: str
    last_name: str = Field(index=True)


# Bulk save + atomic counter increment, in one round trip
pipe = Customer.db().pipeline(transaction=False)
pipe.incr("metrics:signups")
await Customer.add(new_customers, pipeline=pipe)
results = await pipe.execute()

Why execute_command (and not the redis-py typed bindings): see ⚡ Why execute_command? above. Full pipeline patterns — bulk fetches + secondary key lookups, GEO model + raw GEO* storage, KNN + stream publish, rate limiting + writes, cluster hash tags: docs/pipelines.mdx.

📚 Documentation

The full documentation lives in docs/. Highlights:

• Getting started — Overview, Getting Started, Connecting to Redis, Examples
• Models and queries — Models and Fields, Queries and Vector Search, Validation, Error Messages
• Operations — Bulk Operations, Streams, Geospatial Queries, Hash Field Expiration, Pipelines and execute_command, Migrations
• Redis 8.x features — AtomicCounter (INCREX), Redis Arrays, Atomic Strings (CAS, MSETEX), Vector Sets, Hot Keys Tracker, Bitmap Operations, Sorted Set Aggregations, Cluster Admin, Keyspace Notifications, OpenTelemetry Observability
• Deployment — Redis Cluster, Protocol Selection, Redis Modules, FastAPI Integration
• Reference — Upstream Issues Fixed, Pending Features (RedisVL)

❤️ Contributing

See CLAUDE.md for the contributor workflow (async source of truth, make sync regeneration), and SECURITY_REVIEW.md for design notes. Open an issue on GitHub to get started.

Current local coverage baseline: 88% overall across aredis_om/ and the generated redis_om/ mirror, with 1100+ passing async + sync tests. RESP2 vs RESP3 parity is exercised end-to-end by tests/test_protocol_compat.py.

📝 License

Redis OM uses the MIT license.