Photo App Backend - A Chassis Example

This project was supposed to be the backend API for an iOS photo sharing app. That app never happend, so I've repurposed the code as an example on using Chassis!

Run tests with bundle exec rake. You can run tests against real services using bundle exec rake test:ci.

I won't give away too much about the structure, because you should explore it your self. Here's some quick info:

• Two repositories: memory and redis
• Chassis.form used for form objects
• Chassis.stratey used to create facades to external services
• see config/test.rb for info on setting up services & repos
• see test/test_helper.rb on how to switch between them

More questions? Just ask me!

General Principles

• Authentication happens with a token header
• All responses in JSON
• 400 for malformed requests
• 412 if the auth header is required and missing
• 422 for validation failures
• 500 for server errors
• 503 maintenance and temporary availability errors
• host: http://photo-app-backend-production.herokuapp.com

Authenticate a Device & Signup

First make request with the user's phone number. The server will send an SMS to the number with a confirmation code. User enters the code. Send a request to the server to create a user with the confirmation code.

POST /user_token
Content-Type: application/json

{
  "user_token": {
    "phone_number": "+12531358183"
  }
}

phone_number is required and must be in international format (+1xxxxxx).

Server will returns 202 Queued w/o a body. Wait for the SMS.

POST /users
Content-Type: application/json

{
  "user": {
    "name": "Adam Hawkins",
    "auth_token": "12345",
    "device": {
      "uuid": "edac577d-555c-460a-a96a-ef20f7d1bb30",
      "push_token": "e21ff6dc-99c7-43ad-bfe8-0a75d73bba16"
    }
  {
}

name, auth_token, and device.uuid are required. Send push_token to enable push notifications. The server will respond with the user and their api key.

Content-Type: application/json

{
  "user": {
    "id": "1",
    "token": "089b94ad71734d1f8820e80d39833b42",
    "name": "Adam Hawkins",
    "device": {
      "uuid": "edac577d-555c-460a-a96a-ef20f7d1bb30",
      "push_token": "e21ff6dc-99c7-43ad-bfe8-0a75d73bba16"
    }
  }
}

Updating the User's Device

This call allows you to keep the user's device updated.

PUT /device
X-Token: 089b94ad71734d1f8820e80d39833b42
Content-Type: application/json

{
  "device": {
    "uuid": "edac577d-555c-460a-a96a-ef20f7d1bb30",
    "push_token": "e21ff6dc-99c7-43ad-bfe8-0a75d73bba16"
  }
}

Response will be a 200 with the same format.

Create a group

PUT /groups
X-Token: 089b94ad71734d1f8820e80d39833b42
Content-Type: application/json

{
  "group": {
    "name": "Testing"
  }
}

Response should be 201.

Upload a Picture

POST /groups/:group_id/pictures
X-Token: 089b94ad71734d1f8820e80d39833b42

{
  "picture": {
    "file": "...."
  }
}

Response should be 201.