Django Channels vs PubNub
Discover how Django Channels compares to PubNub, and understand which is right for your use case, based on dimensions such as core features, pricing, reliability, and scalability.
What is Django Channels?
Django Channels is an extension of the Django web framework that adds support for handling WebSockets, long-polling HTTP connections, and other protocols that require long-running connections.
What is PubNub?
PubNub is a developer API platform that powers the realtime infrastructure in apps to build engaging Virtual Spaces where online communities can connect. It can serve as the foundation for online chat, live events, geolocation, remote IoT control, and realtime updates.
Compare Django Channels and PubNub
Let’s compare Django Channels and PubNub, looking at key dimensions such as their core features, pricing, integrations, QoS, performance, and security and compliance.
Disclaimer:This comparison was created based on documentation and resources freely available online about Django Channels and PubNub. The content was last updated on 10 Oct 2024 for Django Channels and on 16 Oct 2024 for PubNub. Be sure to double-check everything before you make any decisions. If you do find anything incorrect or out of date, then please contact us.
| Core features | |||
Pub/Sub messaging | Reduces communication code complexity, simplifying the process of building highly functional and architecturally complex realtime apps. | Django Channels Partial You can implement a pub/sub mechanism with the addition of the | PubNub Yes |
Chat capabilities | Accelerates the time to implement rich chat experiences with features such as read receipts, typing indicators, and more. | Django Channels Yes Django Channels provides the foundation of realtime communication infrastructure that can be used to implement chat capabilities like 1-on-1 messaging and group messaging. Read more | PubNub |
Collaboration capabilities | Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking. | Django Channels Yes Django Channels provides a real-ime communication layer that can be used to build applications with collaboration features like avatar stacks and component locking. | PubNub Partial Via Presence, no dedicated SDK to make it easier. |
State sync capabilities | Enables realtime data synchronization across devices and users, ensuring a cohesive and up-to-date user experience. | Django Channels No Read more | PubNub Yes |
Presence | Maintaining a view of which users are connected, and their associated metadata, enables their online status to be updated in realtime. | Django Channels No | PubNub Yes |
Occupancy | High-level metrics about the clients currently connected to a channel make it simple to show things such as connected user count, or display which channels are the most popular. | Django Channels No | PubNub |
Message interactions | Enables interaction with previously-sent messages, facilitating the implementation of features like message reactions and threads. | Django Channels No | PubNub Yes |
Message history | Enables clients to catch up on missed messages when inactive, ensuring a user doesn’t miss any important messages. | Django Channels No You would have to build message history storage and retrieval yourself, using Django's database (ORM) to store messages, and creating APIs to retrieve them. | PubNub Yes |
Push notifications | Cross-platform push notifications make it possible to deliver important and timely messages to users even when they’re inactive. | Django Channels Yes Django Channels supports web push notifications with WebSockets. | PubNub Yes |
Message delta compression | Minimizes bandwidth and can reduce latency, particularly in scenarios where continuous updates are sent. | Django Channels No | PubNub No |
Programmatic management | Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI. | Django Channels Yes Django Channels can only be used programmatically. | PubNub No |
| Pricing | |||
Free plan | With a free plan, you can test the service’s functionality and compatibility with your project before committing to a paid plan. | Django Channels Yes | PubNub Yes |
Pricing model | The pricing model should align with your project's expected load, usage patterns, and budget in order to be cost-effective and efficient. | Django Channels Django Channels is a free and open-source package that can be used without any cost. It's part of the Django ecosystem and doesn't have paid plans. | PubNub PubNub offers Free, Starter, and Pro packages. Their support packages, separate from their standard plans, also include an Enterprise option. Their pricing model is based on monthly active users (MAUs). See the pricing page |
| Integrations & interoperability | |||
SDKs | Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps. | Django Channels Django Channels does not have any SDK. To use it, you must install it via pip as a Python package. | PubNub
Source: SDKs |
Supported realtime protocols | Support for multiple protocols provides the flexibility to choose a protocol that best suits your project’s requirements. | Django Channels
| PubNub
PubNub uses HTTP as the transport for their client libraries. A WebSocket compliant interface is provided in some libraries, however this is just a wrapper around an underlying HTTP transport. |
Serverless functions | Enables integration with third-party cloud providers by facilitating the execution of custom code against messages to perform business logic like on-the-fly translation. | Django Channels None. | PubNub
PubNub allows you to run code on its own platform using proprietary PubNub Functions in the form of “Blocks”. The code you can run in Blocks is limited to the Javascript API available in PubNub’s system. |
Streaming & queueing | Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing. | Django Channels Yes | PubNub Egress:
Ingress:
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Observability services | Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice. | Django Channels No | PubNub Yes PubNub provides integrations with Datadog and NewRelic |
CI/CD tools | Makes it possible to provision and configure service infrastructure as part of a CI or CD pipeline, enabling repeatable and reliable deployments. | Django Channels Yes Most CI/CD tools are supported on a Django project level rather than specifically by Django Channels:
| PubNub PubNub provides a Command Line Interface (CLI) specifically for managing and deploying PubNub Functions. |
| Quality of Service | |||
Scalability | Scalability is vital as it ensures the service can handle increased data load or users without compromising performance. | Django Channels The scalability of a Django project using Channels depends your own design, implementation, and infrastructure choices. | PubNub
Source: Edge messaging solutions page |
Guaranteed message delivery | Ensures messages are never lost during transmission, even in the presence of network disruptions. | Django Channels No | PubNub No |
Guaranteed message ordering | Maintains the sequence of messages as they were sent. This is particularly important in apps where the chronological order of messages is essential for meaningful communication. | Django Channels Django Channels guarantees message ordering in all cases. Read more | PubNub No |
Exactly-once message delivery | Guarantees that each message is processed exactly once, preventing data inconsistencies that can arise from duplicate processing or missing messages. | Django Channels No | PubNub No |
| Performance & availability | |||
Uptime Guarantee | An uptime guarantee instills confidence in the reliability of the service and protects your business from the negative impacts of downtime. | Django Channels None. | PubNub 99.999% |
Global edge network | By bringing servers (Points of Presence, or PoP) geographically closer to the devices of end users, and routing requests to the nearest PoP, global latency is reduced to a minimum. | Django Channels No | PubNub Yes |
Multi-region data replication (message durability) | By replicating data across multiple regions, the risk of data loss or downtime is greatly mitigated since if data is lost or a server fails in one region, the information can be retrieved from another. | Django Channels No Django Channels does not support multi-region data replication. It's a library for handling WebSockets, HTTP long-polling, and other protocols that require long-running connections in Django applications. | PubNub Yes |
No single point of failure or congestion | Having no single point of failure means a system is resilient and can continue to operate even if one part fails. Avoiding a single point of congestion ensures messages flow efficiently across the system and avoids bottlenecks that could lead to performance issues under load. | Django Channels No | PubNub Yes |
Latency | Low latency is crucial for realtime apps as it ensures swift and efficient data transmissions, providing a smoother and more responsive user experience. | Django Channels Unknown. | PubNub <100 milliseconds delivery |
| Security & compliance | |||
API key authentication | Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens. | Django Channels No | PubNub No PubNub does not provide configurable private key permissions. It uses a different model where each client’s access is configured with the PubNub Access Manager (PAM). |
Token-based authentication | Provides a means to securely authenticate user devices against your user management system. | Django Channels Yes Read more | PubNub Yes |
Single Sign-On (SSO) authentication | SSO streamlines login processes, boosts security by minimizing password use, and meets compliance needs for secure data access management. | Django Channels No Django Channels itself does not natively support Single Sign-On (SSO). SSO is typically handled at the Django application level. | PubNub Yes Google and SSO |
Rules for permissions and operations | Provides control over which users can subscribe and publish to certain channels. | Django Channels No | PubNub |
End-to-end encryption | Ensures that the data transmitted between the client and the API server remains confidential and secure while in transit. | Django Channels No | PubNub Yes All customer data stored within PubNub is encrypted in transit over public networks using TLS 1.2+. Customer data stored in PubNub cloud products and services is AES-256 encrypted at rest. |
Encryption at rest | Ensures data stored by the service is secure and compliant, while also mitigating the risks of a data breach. | Django Channels No | PubNub Yes |
Compliance | Compliance with regulations can impact your ability to meet legal obligations in your industry. | Django Channels There is no information on Django Channels compliance. | PubNub
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Alternatives to Django Channels and PubNub
While both Django Channels and PubNub are worth considering as options for realtime experiences, they aren’t without their limitations. We suggest evaluating them against the following alternatives to make sure you find the right solution for your needs.
Alternatives to Django Channels
Socket.IO is a library that provides realtime, bi-directional communication between clients and servers. It allows the management of connections, sending and receiving messages, and more.
Pusher is a first-generation pub/sub messaging service that provides bi-directional hosted APIs for adding realtime features to applications.
PubNub is a developer API platform that powers the realtime infrastructure in apps to build engaging Virtual Spaces where online communities can connect.
Alternatives to PubNub
Pusher is a first-generation pub/sub messaging service that provides bi-directional hosted APIs for adding realtime features to applications.
Socket.IO is a library that provides realtime, bi-directional communication between clients and servers. It allows the management of connections, sending and receiving messages, and more.
SignalR is an open-source library that simplifies adding real-time web functionality to ASP.NET Core web apps.
Discover how Django Channels and PubNub stack up against Ably
Ably is the definitive realtime experience platform of the internet. See how we compare to Django Channels and PubNub on key dimensions such as core features, pricing, integrations, QoS, performance, and security and compliance.
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Ably has built reliable realtime infrastructure so you don’t have to. On our free plan you benefit from:
- 6M monthly messages
- 200 concurrent channels
- 200 concurrent connections
