IoT Persistence Api

Description

This is a simple Python Flask server which implements a small api to allow users to store key-value pairs. It was created to store persistent states because IFTTT does not really allow you to do that.

Installation

1. Download wheel file from releases tab
2. Create a new folder, enter it and execute python -m venv .
3. Activate virtual enviorment with . bin/activate
4. Install wheel file with pip: pip install releasefile.whl
5. Make sure a var folder exists in virtualenv, if not create it by runing mkdir var
6. Initialize database by running export FLASK_APP='iotpersistenceapi' and then flask init-db and set a admin password

Configuration

The server looks for the existence of an config.json file in the flask instence folder and then loads it (the instance folder should be located in the var folder).

Example config.json:

{
	"SECREY_KEY": "YOURSECREYKEY"
}

You should set a SECREY_KEY in this config for security reasons, to do this just generate a random string with python -c 'import secrets; print(secrets.token_hex())' and set it in the config file.

Run

Project can now be run with flask run. For production you should probably choose a cgi server like fastcgi (further infos).

Usage

Authentification

The api uses standard HTTP-Authentification using a username and a password. The user and it's password have to be created by the admin using the admin interface.

Set a value

/iotpersistenceapi/set?key=SOMEKEY&value=SOMEVALUE Returns 200 status code on success and 400 on failure.

Get a value

/iotpersistenceapi/get?key=SOMEKEY The value will be returned directly in plain text (not json). Returns 200 status code on success, 404 on unknown key and 400 on other failures.

Delete a value

/iotpersistenceapi/del?key=SOMEKEY Returns 200 status code on success, 404 on unknown key and 400 on other failures.

List values

/iotpersistenceapi/list Returns key-value pairs in JSON format.

Admin Interface

/iotpersistenceapi/admin

Create new users

Can be done using the admin interface

Note: IFTTT Webhooks HTTP-Auth

HTTP Authentification in IFTTT Webhooks can be achieved with the following synthax: https://username:password@website.com