Playing with Facebook's GraphQL (applied to AWS products and offers management)

About GraphQL GraphQL has been invented by Facebook for the purpose of refactoring their mobile application. Facebook had reached the limits of the standard REST API mainly because: Getting that much information was requiring a huge amount of API endpoints The versioning of the API was counter-productive regarding Facebook’s frequents deployements. But graphql is not only a query language related to Facebook. GraphQL is not only applicable to social data.

Linda's evalc, a (tuple)space oddity

For a change, I will start with a good soundtrack (youtube version for those who are spotify-less) This is my third article about the distributed coordination language Linda. The final target of the work is to use this coordination mechanism to deploy and maintain applications based on the description of their topology (using, for example, TOSCA as a DSL). Last time, I introduced a lisp based language (zygomys) as an embedded programing mechanism to describe the business logic.

350000 rows, 133 cols... From a huge CSV to DynamoDB (without breaking piggy-bank).

In this post I will explain how to: Parse a CSV file and extract only certain columns Create a table in DynamoDB Insert all the data with an adaptive algorithm in order to use the provisioned capacity Reduce the capacity once the insertion is done. Exploring the problem: AWS Billing In a previous post I explained how I was using dynamodb to store a lot of data about aws billing.

To go and touch Linda's Lisp

The title is not a typo nor dyslexia. I will really talk about Lisp. In a previous post I explained my will to implement the dining of the philosophers with Linda in GO. The ultimate goal is to use a distributed and abstract language to go straight from the design to the runtime of an application. The problem I’ve faced I want to use a GO implementation for the Linda language because a go binary is a container by itself.

Linda, 31yo, with 5 starving philosophers...

The hand is the tool of tools - Aristotle. It ain’t no secret to anyone actually knowing me: I am a fan of automation. Automation and configuration management have come a long way since Mark Burgess wrote the first version of cfengine. But even if the landscape has changed, operators are still scripting (only the DSL has changed), and the area targeted by those scripts remains technical.