Delete data
After adding the book "Pride and Prejudice" with an insertBooks(), you can delete
the book using deleteBooks() to illustrate deleting data:
-
graphQL command
-
Result
mutation deleteOneBook {
PaP: deletebook(value: {title:"Pride and Prejudice", author: "Jane Austen"}, ifExists: true ) {
value {
title
}
}
}{
"data": {
"PaP": {
"value": {
"title": "Pride and Prejudice"
}
}
}
}Note the use of ifExists to validate that the book exists before deleting it.
Deletion options
Similar to the option ifExists, you can delete a book using consistency,
serialConsistency, or ttl, similar to insertions:
-
graphQL command
-
Result
mutation deleteOneBookCL {
PaP: deletebook(value: {title:"Pride and Prejudice", author: "Jane Austen"}, ifExists: true, options: {consistency: LOCAL_ONE }) {
value {
title
}
}
}{
"data": {
"PaP": {
"value": {
"title": "Pride and Prejudice"
}
}
}
}