https://github.com/leandronsp/ragnar

The backend warrior for Marketr
https://github.com/leandronsp/ragnar

bovespa elixir machine-learning neural-network

Last synced: over 1 year ago
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The backend warrior for Marketr

• Host: GitHub
• URL: https://github.com/leandronsp/ragnar
• Owner: leandronsp
• Created: 2017-02-05T02:11:43.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2018-06-04T17:55:59.000Z (about 8 years ago)
• Last Synced: 2025-01-21T22:11:29.748Z (over 1 year ago)
• Topics: bovespa, elixir, machine-learning, neural-network
• Language: Elixir
• Homepage:
• Size: 137 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Ragnar

The backend for [Marketr](https://sonataxa.tech). Built on top of Phoenix/Elixir.

Marketr is a product made for investors who need curated information regarding stock options assets at the [BMF&Bovespa](http://www.bmfbovespa.com.br/pt_br/).

Its board contains the most negotiated assets at the market and brings all the needed information for trading, including a top-feature called "Rating".

Ratings are evaluated based on Artificial Intelligence and are the main purpose of this product because it achieves transparency, speed and accuracy

while choosing the best assets to invest money.

### Description

Ragnar parses and exposes BMF&Bovespa data-related.

API for getting stocks listed at Bovespa and their related calls/puts.

Its core uses [Morphine](https://github.com/leandronsp/morphine), a Neural Network used to learn and predict scores based on share rate, balance, volatiliy and trades.

Some examples of API endpoints:

	GET /series

	GET /stocks

	GET /stocks/{share}/calls?serie=B

	GET /stocks/{share}/puts?serie=P

	GET /stocks/{share}/calls/evaluated?capital=10000&serie=A

	GET /stocks/{share}/puts/evaluated?capital=10000&serie=A

	### Training the neural network!

	POST /network/train

	inputs: [[0, 1, 0], [0, 0, 1], [0, 0, 0]]

	targets: [[1, 0, 0]]

### Stack

This app was tested using Elixir 1.5+ and Postgres 9.x. There are apparent issues

with Ecto when tried to upgrade to Postgres 10.

### Docker usage

This app uses docker for containerization:

	# builds the api and db container

	docker-compose build api

	# starts api container and listens to http://localhost:4000

	docker-compose up api

	# running commands inside api container (populate database)

	docker exec -it ragnar-api bash

	=> iex -S mix

	=> Ragnar.BovespaFetcher.fetch_many!

	# happy TDD!

	docker-compose build tdd && docker-compose run tdd

	# stop everything

	docker-compose down

By default the database will write data to the local machine at `$(pwd)/.pgdata`.

### Testing

TDD can be achieved either running `mix test.watch` or `docker-compose run tdd`.

Running under K8s

----------

This app provides capabilities for deployments  on K8s using Docker containers.

	# creates pods and services

	kubectl create -f k8s/k8s-db-config.yml

	kubectl create -f k8s/k8s-db.yml

	kubectl create -f k8s/k8s-db-service.yml

	kubectl create -f k8s/k8s-app-pod.yml

	kubectl create -f k8s/k8s-app-service.yml

	# check dashboard using MiniKube

	minikube dashboard

	# print URL

	minikube service ragnar-service --url

### License

Ragnar is released under the [MIT License](https://opensource.org/licenses/MIT)