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Exploring Graphs with Elixir

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Getting Started

Introduction Approach

Part I - Graphs Everywhere

Engage with Graphs First Contact Code a “Hello World” Graph Model a Book Graph Our Plan of Action Wrap Up Graphs Everywhere

Getting Started with the Project

Project Overview

Umbrella and Child Projects

Test an Umbrella Project

Package Graphs and Queries

Inspect the Structs

Build a Graph Store

Store Graphs and Queries

Graph Service API

Wrap Up Getting Started with the Project

Quiz on Getting Started with the Project

Part II - Getting to Grips with Graphs

Manage Graphs Natively with Elixir NativeGraph Project Directed Graph Undirected Graph Store Graphs in the Graph Store Macros Test Macros Visualize Graphs Render a Graph with Similar Node Labels Render with OmniGraffle Wrap Up Part II: Coming to Grips with Graphs Quiz on Part II: Coming to Grips with Graphs

Exploring Graph Structures

A Worked Example Explore the Example Graph Model the Book Graph Atoms for Node Values Maps for Node Values Generate Graphs Wrap Up Exploring Graph Structures

Navigating Graphs with Neo4j

Introduction to Neo4j Property Graph Model PropertyGraph Project Query with Cypher and APOC Try Out the Bolt Driver Set up a Graph Service API Demo Service Contexts Wrap Up Navigating Graphs with Neo4j Quiz on Navigating Graphs with Neo4j

Querying Neo4j with Cypher

Introduction to Querying Property Graphs Get Started with Cypher First Queries with Cypher Model the Book Graph Query the Book Graph Overview of the ARPANET Model the ARPANET Graph Pass Parameters to Queries Schemas and Types in Cypher Wrap Up Querying Neo4j with Cypher Quiz on Querying Neo4j with Cypher

Graphing Globally with RDF

Get Started with RDF What’s Different About RDF?RDF Model RDFGraph Project Model the Book Graph Two Approaches to Modeling RDF Add a Vocabulary for DC Elements Add Vocabularies for BIBO Ontology Use the Vocabularies to Build RDF Statements Set Up a Graph Service Graph and Query APIs API Demo Wrap Up Graphing Globally with RDF Quiz: Graphing Globally with RDF

Querying RDF with SPARQL

Get Started with SPARQL Query the Local RDF Service: Major Query Forms Query the Local RDF Service: Minor Query Forms Case 1: Tokyo Metro Query a Remote RDF Service Case 2: Graph Walk (Querying)Case 3: Graph Walk (Browsing)Wrap Up Querying RDF with SPARQL Quiz on Querying RDF with SPARQL

Traversing Graphs with Gremlin

Introduction to Gremlin Use Gremlin TinkerGraph Project Query with Gremlin Set up a Graph Service Create the Book Graph Wrap Up Traversing Graphs with Gremlin Quiz on Traversing Graphs with Gremlin

Delivering Data with Dgraph

GraphQL and DQL Dgraph Model Create the DGraph Project Set up a Graph Service API Demo Load a Schema into Dgraph Load Data into Dgraph ARPANET Again Wrap Up Delivering Data with Dgraph Quiz on Delivering Data with Dgraph

Part III - Graph to Graph

Transforming Graph Models Importing RDF with n10s—A Neo4j Plug-in A Graph-to-Graph Example Step 1: Query RDF Databases for Data Step 2: Put RDF into the Local Property Graph Database Step 3: Modify RDF in the Local Property Graph Database Step 4: Get RDF Out of the Local Property Graph Database Step 5: Put RDF into the Local RDF Graph Database Step 6: Modify RDF in the Local RDF Graph Database Federated Querying Wrap Up Part III: Graph to Graph Quiz on Part III: Graph to Graph

Processing the Graph

Introduction to Processing the Graph Create the GraphCompute Project Add a Supervision Tree Build a Dynamic Process Graph Restore the State for a Node Simulate a Network Quiz on Processing the Graph

Wrap Up

Store Graphs and Queries

Learn how to create an API for writing and reading graphs from the graph store.

We'll cover the following

Data flow
Reading
Writing

We created data structs for transporting graphs and queries and carved out a directory tree for storing them. We’ll now define a simple API for reading and writing from the structs to the graph store.

Data flow

The following figure shows a couple of data flows to and from the graph store.

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