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add informations about queries in graphql (#36428)

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This commit is contained in:
Mohamed Saad
2019-07-15 15:37:23 +02:00
committed by Randell Dawson
parent 72be29068a
commit 04790915a8
1 changed files with 24 additions and 1 deletions
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guide/english/graphql/index.md
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@ -18,7 +18,30 @@ npm install graphql --save
```
## Queries
<!-- This section is a stub. Consider contributing by forking this repository and submitting a Pull Request with your changes! -->
A query is the shape of the request that get back the exact data you asked for, not the whole object like in REST approach. You can write your query like that:-
```
{
hero {
name
}
}
```
and then the output is like that:-
```
{
"data": {
"hero": {
"name": "R2-D2"
}
}
}
```
note that the returned data has a special structure which starts with "data" and it has the same structure as the request.
## Mutations
<!-- This section is a stub. Consider contributing by forking this repository and submitting a Pull Request with your changes! -->