Copper M7

A .NET package that does all the heavy lifting when connecting to the EPEX M7 API.

Copper M7 makes it super easy to build tight real-time integration with EPEX.

Learn more

✅ Verified by EPEX ✅

Copper M7 has full support for all M7 versions currently being used.

EPEX M7 environments and versions
ASIM PROD
(please note that other exchanges using M7 might be running several versions behind)

Built by Rebus FM

When building Copper Power Platform, the requirement for an M7 integration that was clean, usable, and confidence-inspiring led to the creation of Copper M7.

Because of its reliance on RabbitMQ/AMQP 0.9.1, a fairly involved messaging protocol, and the requirement of being able to gracefully handle failover, integrating with EPEX M7 is notoriously difficult.

Copper M7 hides all the messy details, making it possible for developers to focus on developing their own stuff. 🙂

It comes in the form of a few NuGet packages and is built with state-of-the art
.NET 6 / .NET 7 / .NET 8, integrating seamlessly into Microsoft's generic host.

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Hosting

Tapping into Microsoft's generic host model, starting your robust M7-powered integration service is just as easy as calling an extension method on your IServiceCollection.

The use of idiomatic C#/.NET constructs makes Copper M7 easily approachable to all .NET developers.

Initial sync

Doing the initial sync is done simply by providing a callback. Copper M7 will call it during startup, and subsequently whenever it is required.

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Broadcasts

Broadcast messages get dispatched to the broadcast dispatcher function.

Copper M7 guarantees that you'll receive broacast messages in the correct order.

Message models

All message types are represented as C# classes. In addition to this, types are marked with interfaces, classifying messages as one or more of IInquiryRequest, IInquiryResponse, IManagementRequest, IManagementResponse, IBroadcastMessage, AND finally all requests are marked with their return types, e.g. TradeCaptureReq is marked with IReturn<TradeCaptureRprt>

This enables Copper M7 to validate that request/response types match, before anything is sent to EPEX M7.

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High-level helpers

Copper M7 automatically retrieves and caches relevant entities, keeping them updated in the background.

They can be accessed via dedicated helpers, e.g. IContractHelper, which may be used to easily get contract information.

Currently, there are caches for system info, products, contracts, order book (private), and contract order books (i.e. all public orders/full market depth).

Dependency injection

Handlers for initial sync and broadcast message processing can be registered with services.AddInitialSyncHandler<> and services.AddBroadcastHandler<>, e.g. services.AddBroadcastHandler<TradeCaptureRprtHandler>(); for full dependency injection support.

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+ much more!

  • For example:

  • Higher-level helpers: The ability to register handlers that will automatically be kept up-to-date with regards to interesting exchange entities, e.g. like products, orders, trades, etc.
  • Decoders: Helpers for decoding prices and quantities with correct observation of their respective value metadata
  • Caching: Automatic, in-process caching of relevant entities, like e.g. available areas, products, contracts, account information, orders (public as well as private), etc.
  • Request limiting: Request rates are automatically and without effort confined to stay within required limits, thus avoiding being penalized for flooding M7.
  • Heartbeat monitoring: An internal watchdog automatically monitors for M7 heartbearts, restarting the connection if the M7 server suddenly becomes quiet.
  • Flood warning: Instead of obscure errors, Copper M7 will warn you if your event processing is too slow and cannot keep up with the influx of broadcast events.

  • + more 🙂

Get in touch here to learn more!

Address

Rebus FM ApS
Søndergade 43 2. tv
8700 Horsens
Denmark

Email

hello@rebus.fm

Phone

+45 29367077