# Commanded Ecto projections

Read model projections for [Commanded]( CQRS/ES applications using [Ecto]( for persistence.



MIT License

[![Build Status](](


> This README and the following guides follow the `master` branch which may not be the currently published version.
> [Read the documentation for the latest published version of Commanded Ecto projections on Hex](

### Overview

- [Getting started](guides/
- [Usage](guides/
  - [Creating a read model](guides/
  - [Creating a projector](guides/
  - [Supervision](guides/
  - [Error handling](guides/
    - [`error/3` callback](guides/
    - [Error handling example](guides/
  - [`after_update/3` callback](guides/
  - [Schema prefix](guides/
  - [Rebuilding a projection](guides/


### Contributing

Pull requests to contribute new or improved features, and extend documentation are most welcome. Please follow the existing coding conventions.

You should include unit tests to cover any changes. Run `mix test` to execute the test suite:

mix deps.get
MIX_ENV=test mix do ecto.create, ecto.migrate
mix test

### Contributors

- [Andrey Akulov](
- [Ben Smith](
- [CptBreeza](
- [Florian Ebeling](
- [Sascha Wolf](
- [Tobiasz Małecki](

## Need help?

Please [open an issue]( if you encounter a problem, or need assistance. You can also seek help in the [Gitter chat room]( for Commanded.

For commercial support, and consultancy, please contact [Ben Smith](