Sending Telemetry from GraphQL under NodeJS without Spamming

I am running a GraphQL server hosted with NodeJS. Under the hood, it is an Express server with Apollo Middleware. I am collecting different information along with errors. The way it works is that I have an Elastic Search server fronted by a simple REST API facade. The endpoint on the REST accepts a single […]

Georgia Tech Online Master Degree Review after 4 semesters

I joined Georgia Tech Master of Science in Computer Science at the end of 2017 with the idea to expand my knowledge in an area I am interested: machine learning. At the time I am writing this blog entry, I have completed four semesters with a grade of “A”, and six more remain to complete […]

How to Collect HTTP Request Telemetry with GraphQL and RESTDataSource?

I have been working in a GraphQL solution at Netflix for few months now. I am always keen to have insight about what is going on. While I created from the ground-up the GraphQL server with NodeJS I had in mind to find a way to give me, the software engineer, some insights by providing […]

Validating Consumer of GraphQL with Jenkins

I will demonstrate a way to configure a continuous environment that gives insight on if a change on the GraphQL server can impact negatively a consumer. The solution assumes that both code bases are under the same organization, not under the same repository and that Jenkins is used. I like to start with an image […]

A Single GraphQL’s Schema for Internal and External Users

Imagine the scenario that you have a GraphQL schema that is consumed only by engineers of your organization. However, some engineers work on external facing applications while some other works on internal applications. The difference is subtle, but some information must remain confidential. While it might be more restrictive than most GraphQL that are fully […]

How to Pass Value to useCallback in React Hooks

UseCallback allows having the same reference for a call back function which has the benefit of only changing when something changes. This is primordial when callbacks are passed down the React component chain to avoid component to be rendered without an actual real reason causing performance issue. The following snippet of code shows a simple […]

TypeScript Exhaustive Check your Reducer

A few weeks ago, I wrote about how to use React Hooks useReducer with TypeScript. The natural follow-up for many is to ensure that the set of action allowed is all served with the reducer. Not only it helps to tidy up the accepted actions by reducers when building the reducer, it also help ensuring […]

The authorization and authentication in GraphQL

Implementing a service that covers many systems might be frightful in term of data exposition. While wandering the Internet for resources about GraphQL and security, we often see cases where the security is not paramount — it is easier to ignore security. The reality is that most corporation that desire to bring GraphQL will also […]

How to consume GraphQL in TypeScript and React

In this article I’ll cover two different approach concerning rendering information coming from a GraphQL server in React while being strongly typed. Approach 1: The normal fetch The first approach is the one I prefer because it is not intrusive. It is very similar of to do a normal REST Ajax call. It can be […]

GraphQL Extension to Collect HTTP and Resolvers Telemetry

The more my graph was increasing, the more resolvers I built. The more resolvers I had, the more data loaders I created, the more HTTP endpoints I had to call and so on. The complexity of the code was rising as well as the possibility to have a catastrophic amount of HTTP requests to be […]