From the land of Nintendo and Samurai comes Monacoin, a Japanese cryptographic currency based on Litecoin. If you look at www.coinmarketcap.com you will see that Monacoin increased about 30x in the past three months. I found it a bit challenging...
Caution! Math Ahead! For the Math-phobic, I explain how I crunch the test results in a math-free, simple and focused blog post here. I use math here, so this may be your last chance to escape! Still with me? Excellent! The bullets below outline...
All production databases require backups. The AWS Elasticsearch documentation states: Amazon Elasticsearch Service (Amazon ES) takes daily automated snapshots of the primary index shards in an Amazon ES domain... However, you must contact the AWS...
The RabbitMQ website provides instructions on how to install the service on CentOS and Ubuntu Elastic Compute Cloud (EC2) instances. While the Amazon Linux distro uses CentOS as a base, it is different enough to make installing RabbitMQ tricky...
The Python Elasticsearch Domain Specific Language (DSL) lets you create models via Python objects. Take a look at the model Elastic creates in their persistence example. #!/usr/bin/env python # persist.py from datetime import datetime from...
Amazon Web Services' (AWS) Lambda provides a serverless architecture framework for your web applications. You deploy your application to Lambda, attach an API Gateway and then call your new service from anywhere on the web. Amazon takes care of...
Flask-WTForms helps us create and use web forms with simple Python models. WTForms takes care of the tedious, boring and necessary security required when we want to use data submitted to our web app via a user on the Internet. WTForms makes data...
Welcome to the fifth part of this HOWTO, where we will call a remote web service to locate our test takers. Once you complete this HOWTO, you will have implemented the following architecture: To recap what we’ve done so far: Part One: Deploy an...
In HOWTO-1, we deployed an Amazon Web Service (AWS) Elasticsearch domain and connected to it via a combination of Identity and Access Management (IAM) roles, IAM profiles and the Boto library. In HOWTO-2 we deployed a Flask web server that...
In this tutorial you will: Connect a Flask server to the Bootstrap service Create a trivial Jinja2 template for a Quiz form Use Bootstrap to validate forms on the client side Use a Flask "flash" message to validate forms on the server side Let's...
In this tutorial you will learn The best* way to update an AWS provided Elasticsearch service index via an Internet facing web form *In terms of flexibility, security and ease of deployment How to deploy web forms in Flask How to get Flask to...
NOTE: Click here to find an update to this blog post which uses Boto3 and Elasticsearch 7.X Step one of our journey connects EC2 to ES using the Amazon boto Python library. I spent more than a few hours pouring through the AWS help docs and...