Graphql basics
See also: vue-canvas-learning-journal, web-development
Introduction to GraphQL#
GraphQL - an API query language.
| GraphQL Concept | Description |
|---|---|
| Schema | Defines the types and fields that can be queried |
| Fields | The properties/attributes of objects |
| Query | A request for data specifying fields { hero { name }}. Fields can be of any type (e.g. strings, arrays, objects etc.) |
| Arguments | Fields (everyone) can be given parameters to modify the data returned { human(id: "1000") { name }} with some ability to modify the data returned |
| Aliases | Method to query the same field multiple times by defining a new "field" using standard field syntax. Those aliases are then returned hero1: hero(episode: NEWHOPE) { name } hero2: hero(episode: EMPIRE) { name } |
| Fragments | Method to specify a set of fields that can be reused multiple times within a query. |