kmx.io/ex_ovh/docs/getting_started.md

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  Date : 2017-02-19T17:04:28
  

  major refactoring library

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defp deps() do
  [{:ex_ovh, "~> 0.2"}]
end

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• docs/getting_started.md

• # Getting Started
  
  - This guide assumes your application is called `MyApp`. If your app is called something else, for example `Awesome`,
  then substitute `Awesome` for `MyApp` and `AWESOME_OVH_CLIENT_` for `MY_APP_OVH_CLIENT_` everywhere in this guide.
  
  
  #### Installation
  
  - Add `:ex_ovh` to the dependencies inx `mix.exs`.
  
  ```elixir
  defp deps() do
    [{:ex_ovh, "~> 0.2"}]
  end
  ```
  
  #### `OVH` configuration
  
  - Create an OVH account at [OVH](https://www.ovh.com/us/)
  
  - Create an API application at the [OVH API page](https://eu.api.ovh.com/createApp/). Follow the
    steps outlined by OVH there.
  
  - Add the configuration settings for the OVH application to the project `config.exs`. The following
  environment variables should be set:
  
      - `MY_APP_OVH_CLIENT_APPLICATION_KEY`
      - `MY_APP_OVH_CLIENT_APPLICATION_KEY`
      - `MY_APP_OVH_CLIENT_APPLICATION_KEY`
  
  - Set them by adding them to the `.env` file. It's best not to share `.env` so run
  echo '.env' >> .gitignore` for the git repository to ensure it doesn't get added to source control.
  
  The `.env` file will be similar to as follows:
  
  ```
  #!/usr/bin/env bash
  
  # updated on 16.2.2017
  export MY_APP_OVH_CLIENT_APPLICATION_KEY="<application_key>"
  export MY_APP_OVH_CLIENT_APPLICATION_SECRET="<application_secret>"
  export MY_APP_OVH_CLIENT_CONSUMER_KEY="<application_consumer_key>"
  ```
  
  - If all of the above seems like too much work, then there is a mix task to help generate the application, see
  [mix task docs](https://github.com/stephenmoloney/ex_ovh/blob/master/docs/mix_task.md).
  
  
  #### Creating a client module
  
  ***NOTE:*** Matching naming between `MyApp.OvhClient` and `MY_APP_OVH_CLIENT_APPLICATION_KEY` variables is expected.
  
  - Basic settings
  
    ```elixir
    config :my_app, MyApp.OvhClient,
       ovh: [
         application_key: System.get_env("MY_APP_OVH_CLIENT_APPLICATION_KEY"),
         application_secret: System.get_env("MY_APP_OVH_CLIENT_APPLICATION_SECRET"),
         consumer_key: System.get_env("MY_APP_OVH_CLIENT_CONSUMER_KEY"),
       ]
    ```
  
  - More elaborate settings
  
    ```elixir
    config :my_app, MyApp.OvhClient,
       ovh: [
         application_key: System.get_env("MY_APP_OVH_CLIENT_APPLICATION_KEY"),
         application_secret: System.get_env("MY_APP_OVH_CLIENT_APPLICATION_SECRET"),
         consumer_key: System.get_env("MY_APP_OVH_CLIENT_CONSUMER_KEY"),
         endpoint: "ovh-eu",
         api_version: "1.0"
       ],
       httpoison: [ # optional
         connect_timeout: 20000,
         receive_timeout: 100000
       ]
    ```
  
  #### Starting the `ex_ovh application`
  
  - Add `ex_ovh` to the list of applications so that it is started. Start the `ExOvh` application.
  
  ```elixir
  def application do
   [applications: [:ex_ovh]]
  end
  ```
  
  
  #### Create the ovh client module
  
  
  ```elixir
  defmodule MyApp.OvhClient do
    @moduledoc :false
    use ExOvh.Client, otp_app: :my_app, client: __MODULE__
  end
  ```
  
  #### Add the client to the application supervision tree
  
  ```elixir
  def start(_type, _args) do
    import Supervisor.Spec, warn: false
    spec1 = [supervisor(MyApp.Endpoint, [])]
    spec2 = [supervisor(MyApp.OvhClient, [])]
    opts = [strategy: :one_for_one, name: MyApp.Supervisor]
    Supervisor.start_link(spec1 ++ spec2, opts)
  end
  ```
  
  #### Making requests
  
  - The client `MyApp.OvhClient` is now ready.
  
  - To make requests see example usages below:
  
  
  #### Example usages
  
  - First start the application with the system environment variables available `source .env && iex -S mix`
  
  - Then try running some requests against the `API`
  
  
  #### Examples - Method 1 - Building the queries manually and sending the request (my preferred way)
  
  
  - `GET /me`
  
  ```
  %ExOvh.Query{headers: [], method: :get, params: %{}, service: :ovh, uri: "/me"} \
  |> MyApp.OvhClient.request!()
  ```
  
  - `GET /me/api/application`
  
  ```
  %ExOvh.Query{headers: [], method: :get, params: %{}, service: :ovh, uri: "/me/api/application"} \
  |> MyApp.OvhClient.request!()
  ```
  
  - `GET /me/api/application/#{app_id}`
  
  ```
  app_id = "0"
  %ExOvh.Query{headers: [], method: :get, params: %{}, service: :ovh, uri: "/me/api/application/#{app_id}"} \
  |> MyApp.OvhClient.request!()
  ```
  
  - `GET /cloud/project/{serviceName}/storage`
  
  ```
  service_name = "service_name" \
  %ExOvh.Query{headers: [], method: :get, params: %{}, service: :ovh, uri: "/cloud/project/#{service_name}/storage"} \
  MyApp.OvhClient.request!()
  ```
  
  
  #### Examples - Method 2 - Build the query using provided helper functions and sending the request
  
  ***Note:*** The Helper functions are listed under `Services`. Helper functions are only available currently for the
  `/Cloud` portion of the OVH API. Where other parts of the api need to be queried, just build the query manually
  using *Method 1* as above. Pull requests for helper functions for other parts of the OVH API are welcome.
  *Eventually, I would like to write a macro to create the queries.*
  
  - `GET /cloud/project/{serviceName}/storage`
  
  ```
  ExOvh.Query.V1.Cloud.Cloudstorage.Query.get_containers(service_name) \
  |> ExOvh.request!()
  ```
  
  
  #### Usage guide
  
  - For more usage examples see the usage guide or the [hex documentation](https://hexdocs.pm/ex_ovh/ExOvh.html)

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