November 2022
Intermediate to advanced
294 pages
5h 58m
English
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Chapter 10Delivering Data with Dgraph
These days whenever we talk about web APIs, GraphQL[83] invariably springs to mind. Created by Facebook and open-sourced since 2015, GraphQL supports data access through APIs for reading, writing, and subscribing to changes to data.
It sounds like we have a new graph query language to play with. But despite the suggestive name, GraphQL isn’t strictly a query language for graphs. The name comes from its ability to query over a mixed-source object graph, although it isn’t limited to any particular backend data model. Rather it defines a query interface in which queries are tree-shaped affairs and result sets are returned as document trees. Users get to specify the data items and the shapes that they need. ...
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