mockra

Here’s a quick guide for setting up postgres to work with Phoenix. The first step is installing postgres through homebrew.

  brew install postgresql

After that’s finished, you’ll need to run the setup command while specifying the utf8 encoding.

  initdb /usr/local/var/postgres -E utf8

Once that’s complete you can start/restart postgres through the services command.

  brew services restart postgresql

The final step is creating your default postgres user.

   createuser -s postgres

You can now successfuly run mix ecto.create assuming you have the following config in config/devs.exs.

  config :api, Api.Repo,
    adapter: Ecto.Adapters.Postgres,
    username: "postgres",
    database: "api_dev",
    hostname: "localhost",
    pool_size: 10

Feel free to replace the database option with something specific to your project.