# Baby Buddy A buddy for babies! Helps caregivers track sleep, feedings, diaper changes, and tummy time to learn about and predict baby's needs without (*as much*) guess work. ![Baby Buddy desktop view](screenshot.png) ![Baby Buddy mobile views](screenshot_mobile.png) **Table of Contents** - [Demo](#demo) - [Deployment](#deployment) - [AWS Elastic Beanstalk](#aws-elastic-beanstalk) - [Docker](#docker) - [Heroku](#heroku) - [Manual](#manual) - [Configuration](#configuration) - [Languages](#languages) - [API](#api) - [Authentication](#authentication) - [`GET` Method](#get-method) - [`OPTIONS` Method](#options-method) - [`POST` Method](#post-method) - [Contributing](#contributing) ## Demo A [demo of Baby Buddy](http://demo.baby-buddy.net) is available on Heroku. The demo instance resets every hour. Login credentials are: - Username: `admin` - Password: `admin` ## Deployment The default user name and password for Baby Buddy is `admin`/`admin`. For any deployment, **log in and change the default admin password immediately**. Many of Baby Buddy's configuration settings can be controlled using environment variables - see [Configuration](#configuration) for detailed information. ### AWS Elastic Beanstalk A basic [Elastic Beanstalk](https://aws.amazon.com/elasticbeanstalk/) configuration is provided in `.ebextensions/babybuddy.config`. The steps below are a rough guide to deployment. See [Working with Python](http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create-deploy-python-apps.html) for detailed information. 1. Clone/download the Baby Buddy repo git clone https://github.com/cdubz/babybuddy.git 1. Enter the cloned/downloaded directory cd babybuddy 1. Change the `SECRET_KEY` value to something random in `.ebextensions/babybuddy.config` 1. [Create an IAM user](http://docs.aws.amazon.com/IAM/latest/UserGuide/id_users_create.html) in AWS with EB, EC2, RDS and S3 privileges. 1. Initialize the Elastic Bean application (using the IAM user from the previous step) eb init -p python-3.6 1. Create/deploy the environment! :rocket: eb create -db -db.engine postgres The create command will also do an initial deployment. Run `eb deploy` to redeploy the app (e.g. if there are errors or settings are changed). ### Docker A Docker deployment requires [Docker](http://docker.com/) and [Docker Compose](https://docs.docker.com/compose/overview/) to create two containers - one for the database and one for the application. 1. Copy the `docker.env.example` to `docker.env` and set the `ALLOWED_HOSTS` and `SECRET_KEY` variables within cp docker.env.example docker.env editor docker.env *See [Configuration](#configuration) for other settings that can be controlled by environment variables added to the `docker.env` file.* 1. Build/run the application docker-compose up -d 1. Initialize the database *(first run/after updates)* docker-compose exec app python manage.py migrate The app should now be locally available at [http://127.0.0.1:8000](http://127.0.0.1:8000). See [Get Started, Part 6: Deploy your app](https://docs.docker.com/get-started/part6/) for detailed information about deployment methods with Docker. ### Heroku [![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy) For manual deployments to Heroku without using the deploy button, make sure to create the following settings before pushing: heroku config:set DJANGO_SETTINGS_MODULE=babybuddy.settings.heroku heroku config:set SECRET_KEY= heroku config:set DISABLE_COLLECTSTATIC=1 See [Configuration](#configuration) for other settings that can be controlled by `heroku config:set`. ### Manual There are many ways to deploy Baby Buddy manually to any server/VPS. The basic requirements are Python, a web server, an application server, and a database. #### Requirements - Python 3.5+, pip, pipenv - Web server ([nginx](http://nginx.org/), [Apache](http://httpd.apache.org/), etc.) - Application server ([uwsgi](http://projects.unbit.it/uwsgi), [gunicorn](http://gunicorn.org/), etc.) - Database ([sqlite](https://sqlite.org/), [Postgres](https://www.postgresql.org/), [MySQL](https://www.mysql.com/), etc.) #### Example deployment *This example assumes a 512MB VPS instance with Ubuntu 16.04.* It uses Python 3.5+, nginx, uwsgi and sqlite and should be sufficient for a few users (e.g. two parents and 1+ child). 1. Install system packages sudo apt-get install python3 python3-pip nginx uwsgi uwsgi-plugin-python3 git libopenjp2-7-dev 1. Default python3 to python for this session alias python=python3 1. Install pipenv sudo -H pip3 install pipenv 1. Set up directories and files sudo mkdir /var/www/babybuddy sudo chown user:user /var/www/babybuddy mkdir -p /var/www/babybuddy/data/media git clone https://github.com/cdubz/babybuddy.git /var/www/babybuddy/public 1. Move in to the application folder cd /var/www/babybuddy/public 1. Initiate and enter the Python environment pipenv install --three pipenv shell **Note:** Python dependencies are locked on x86-64 architecture. Installs on other architectures (like Raspberry Pi's ARM) may result in a ``THESE PACKAGES DO NOT MATCH THE HASHES FROM Pipfile.lock!`` error. Add the ``--skip-lock`` flag to the above command to suppress this error (i.e.: ``pipenv install --three --dev --skip-lock``). 1. Create a production settings file and set the ``SECRET_KEY`` and ``ALLOWED_HOSTS`` values cp babybuddy/settings/production.example.py babybuddy/settings/production.py editor babybuddy/settings/production.py 1. Initiate the application export DJANGO_SETTINGS_MODULE=babybuddy.settings.production python manage.py migrate 1. Set appropriate permissions on the database and data folder sudo chown -R www-data:www-data /var/www/babybuddy/data sudo chmod 640 /var/www/babybuddy/data/db.sqlite3 sudo chmod 750 /var/www/babybuddy/data 1. Create and configure the uwsgi app sudo editor /etc/uwsgi/apps-available/babybuddy.ini Example config: [uwsgi] plugins = python3 project = babybuddy base_dir = /var/www/babybuddy virtualenv = /path/to/venv chdir = %(base_dir)/public module = %(project).wsgi:application env = DJANGO_SETTINGS_MODULE=%(project).settings.production master = True vacuum = True See the [uWSGI documentation](http://uwsgi-docs.readthedocs.io/en/latest/) for more advanced configuration details. **Note: Find the location of the pipenv virtual environment for the `virtualenv` parameter with the command `pipenv --venv`.** 1. Symlink config and restart uWSGI: sudo ln -s /etc/uwsgi/apps-available/babybuddy.ini /etc/uwsgi/apps-enabled/babybuddy.ini sudo service uwsgi restart 1. Create and configure the nginx server sudo editor /etc/nginx/sites-available/babybuddy Example config: upstream babybuddy { server unix:///var/run/uwsgi/app/babybuddy/socket; } server { listen 80; server_name babybuddy.example.com; location / { uwsgi_pass babybuddy; include uwsgi_params; } location /media { alias /var/www/babybuddy/data/media; } } See the [nginx documentation](https://nginx.org/en/docs/) for more advanced configuration details. 1. Symlink config and restart NGINX: sudo ln -s /etc/nginx/sites-available/babybuddy /etc/nginx/sites-enabled/babybuddy sudo service nginx restart 1. That's it (hopefully)! :tada: ## Configuration Environment variables can be used to define a number of configuration settings. Baby Buddy will check the application directory structure for an `.env` file or take these variables from the system environment. **System environment variables take precedence over the contents of an `.env` file.** - [`ALLOWED_HOSTS`](#allowed_hosts) - [`ALLOW_UPLOADS`](#allow_uploads) - [`AWS_ACCESS_KEY_ID`](#aws_access_key_id) - [`AWS_SECRET_ACCESS_KEY`](#aws_secret_access_key) - [`AWS_STORAGE_BUCKET_NAME`](#aws_storage_bucket_name) - [`DEBUG`](#debug) - [`NAP_START_MAX`](#nap_start_max) - [`NAP_START_MIN`](#nap_start_min) - [`SECRET_KEY`](#secret_key) - [`TIME_ZONE`](#time_zone) ### `ALLOWED_HOSTS` *Default: * (any)* This option may be set to a single host or comma-separated list of hosts (without spaces). This should *always* be set to a specific host or hosts in production deployments. See also: [Django's documentation on the ALLOWED_HOSTS setting](https://docs.djangoproject.com/en/1.11/ref/settings/#allowed-hosts) ### `ALLOW_UPLOADS` *Default: True* Whether or not to allow uploads (e.g. of Child photos). For some deployments (AWS, Heroku, Nanobox) this setting will default to False due to the lack of available persistent storage. ### `AWS_ACCESS_KEY_ID` *Default: None* Required to access your AWS S3 bucket, should be uniquely generated per bucket for security. See also: [`AWS_STORAGE_BUCKET_NAME`](#aws_storage_bucket_name) ### `AWS_SECRET_ACCESS_KEY` *Default: None* Required to access your AWS S3 bucket, should be uniquely generated per bucket for security. See also: [`AWS_STORAGE_BUCKET_NAME`](#aws_storage_bucket_name) ### `AWS_STORAGE_BUCKET_NAME` *Default: None* If you would like to use AWS S3 for storage on ephemeral storage platforms like Heroku you will need to create a bucket and add it's name. See django-storages' [Amazon S3 documentation] (http://django-storages.readthedocs.io/en/latest/backends/amazon-S3.html). ### `DEBUG` *Default: False* When in debug mode, Baby Buddy will print much more detailed error information for exceptions. This setting should be *False* in production deployments. See also [Django's documentation on the DEBUG setting](https://docs.djangoproject.com/en/1.11/ref/settings/#debug). ### `NAP_START_MAX` *Default: 18:00* The maximum *start* time (in the instance's time zone) before which a sleep entry is consider a nap. Expects the format %H:%M. ### `NAP_START_MIN` *Default: 06:00* The minimum *start* time (in the instance's time zone) after which a sleep entry is considered a nap. Expects the format %H:%M. ### `SECRET_KEY` *Default: None* A random, unique string must be set as the "secret key" before Baby Buddy can be deployed and run. See also [Django's documentation on the SECRET_KEY setting](https://docs.djangoproject.com/en/1.11/ref/settings/#secret-key). ### `TIME_ZONE` *Default: Etc/UTC* The time zone to use for the instance. See [List of tz database time zones](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) for all possible values. ## Languages Baby Buddy includes translation support as of v1.2.2. Language can be set on a per-user basis from the user settings page (`/user/settings/`). See [CONTRIBUTING.md](CONTRIBUTING.md#translation) for information about how to create/update translations. ### Available languages :us: English (U.S.) *(base)* :fr: French :de: German :sweden: Swedish ## API Baby Buddy uses the [Django REST Framework](http://www.django-rest-framework.org/) (DRF) to provide a REST API. The only requirement for (most) requests is that the `Authorization` header is set as described in the [Authentication](#authentication) section. The one exception is the `/api` endpoint, which lists all available endpoints. Currently, the following endpoints are available for `GET`, `OPTIONS`, and `POST` requests: - `/api/children/` - `/api/changes/` (Diaper Changes) - `/api/feedings/` - `/api/notes/` - `/api/sleep/` - `/api/temperature/` - `/api/timers/` - `/api/tummy-times/` - `/api/weight/` ### Authentication By default, the [TokenAuthentication](http://www.django-rest-framework.org/api-guide/authentication/#tokenauthentication) and [SessionAuthentication](http://www.django-rest-framework.org/api-guide/authentication/#sessionauthentication) classes are enabled. Session authentication covers local API requests made by the application itself. Token authentication allows external requests to be made. :exclamation: **In a production environment, token authentication should only be used for API calls to an `https` endpoint.** :exclamation: Each user is automatically assigned an API key that can be used for token authentication. This key can be found on the User Settings page for the logged in the user. To use a key for an API request, set the request `Authorization` header to `Token `. E.g. Authorization: Token 2h23807gd72h7hop382p98hd823dw3g665g56 If the `Authorization` header is not set or the key is not valid, the API will return `403 Forbidden` with additional details in the response body. ### `GET` Method #### Request The `limit` and `offset` request parameters can be used to limit and offset the results set respectively. For example, the following request will return five diaper changes starting from the 10th diaper change entry: curl -X GET 'https://[...]/api/changes/?limit=5&offset=10' -H 'Authorization: Token [...]' { "count": , "next": "https://[...]/api/changes/?limit=5&offset=15", "previous": "https://[...]/api/changes/?limit=5&offset=5", "results": [...] } Field-based filters for specific endpoints can be found the in the `filters` field of the `OPTIONS` response for specific endpoints. #### Response Returns JSON data in the response body in the following format: { "count":, "next":, "previous":, "results":[{...}] } - `count`: Total number of records (*in the database*, not just the response). - `next`: URL for the next set of results. - `previous`: URL for the previous set of results. - `results`: An array of the results of the request. ### `OPTIONS` Method #### Request All endpoints will respond to an `OPTIONS` request with detailed information about the endpoint's purpose, parameters, filters, etc. #### Response Returns JSON data in the response body describing the endpoint, available options for `POST` requests, and available filters for `GET` requests. The following example describes the `/api/children` endpoint: { "name": "Child List", "renders": [ "application/json", "text/html" ], "parses": [ "application/json", "application/x-www-form-urlencoded", "multipart/form-data" ], "actions": { "POST": { "id": { "type": "integer", "required": false, "read_only": true, "label": "ID" }, [...] } }, "filters": [ "first_name", "last_name", "slug" ] } ### `POST` Method #### Request To add new entries for a particular endpoint, send a `POST` request with the entry data in JSON format in the request body. The `Content-Type` header for `POST` request must be set to `application/json`. Regular sanity checks will be performed on relevant data. See the `OPTIONS` response for a particular endpoint for details on required fields and data formats. #### Response Returns JSON data in the response body describing the added/updated instance or error details if errors exist. Errors are keyed by either the field in error or the general string "non_field_errors" (usually when validation incorporates multiple fields). ## Contributing Contributions are welcome! See [CONTRIBUTING.md](CONTRIBUTING.md) for detailed information about how to develop and contribute to Baby Buddy.