Neo4j

Hey people!!!!! I am developing an application for which graph databases are perfect, but I am low on cash(0 actually), and I am wondering if there is any free service is available for Amazon Neptune or Neo4j or any other substitute is available for the two. As far as I checked, I couldn't find any free service.

I want to build learning paths in a simple way and visualize them, the way Neo4j or D3.js do it. Example: I have a set of learning resources that can be connected depending on certain criteria. Thus, it would be possible for learners to start from various starting points and have learning paths depending on this starting point.

Following this, I need two things: first, a UI that lets me connect entries from a database so that a linear view, like a path, comes out. And second, a bird's eye view on the various paths like a force-directed graph that stems from the linear connections I made.

I use Neo4j because i find it to be a superior way to store and query highly relational data. The new spatial functionality has made it even more useful.

Also, the APOC library adds a large number of extremely powerful features to the database. I know many people are purists about logic in databases but things like guid/uuid generation, geocoding, and distance algorithms are all extremely useful in the data storage context.

I use Neo4j because the data structure was a graph, based on the underlying research papert, so the project had to follow this concept. However, the research project doesn't take the full potential of Neo4j or an other graph database, because it doesn't apply any graph related algorithms. So the whole architecture could have been also modelled in a simple relational way (PostgreSQL/MySQL/etc.). However, Neo4j with its very easy to learn query language Cypher was in the end a very good choice, because other researchers were able to set up a new testing scenario also on the database level with much flexibility.

Node.js MySQL Neo4j ES6 PHP #chrome_extension ExpressJS sometimes ( read toy projects ) React and Vue