Visual Design of GraphQL Data: A Practical Introduction with Legacy Data and Neo4j

© Thomas Frisendal 2018

Thomas FrisendalVisual Design of GraphQL Datahttps://doi.org/10.1007/978-1-4842-3904-9_2

2. GraphQL Concepts

Thomas Frisendal¹ 

(1)

Copenhagen S, Denmark

 

There are a number of concepts defined in the GraphQL context. The concept model shown in Figure 2-1 lays out all the important ones.

Figure 2-1

GraphQL concepts

(Refer to the GraphQL Schema introduction at http://graphql.org/learn/schema/ for all the schema details.¹) A few words on the diagram style shown in Figure 2-1:

• It is a directed graph (of the concept map category)

• Relationships are named

• Relationships may be:

  • One-to-one (no arrows)

  • One-to-many (arrow)

  • Many-to-many (double-sided ...