How to query object with contains specific key in array in Graphql - graphql

Question

I have object to query:
query demo {
demo {
name # string
words # array of strings
}
}
I am sending this query to API, property words is array of strings.
I would like to query all object which contains hello in words (array of strings) property.
It is possible on client side using for example #include ?
And how?

Answer 1

The #skip and #include directives are used to explicitly skip or include a particular field based on the provided if argument. They are normally used in conjunction with variables, so that the same document can be used to effectively generate queries with different selection sets (sets of fields) based on the provided variable.
For example, you can write a single query like this
query demo($includeName: Boolean!) {
demo {
name #include(if: $includeName)
words
}
}
and just pass in a different value for includeName instead of writing two separate queries:
query demoWithName {
demo {
name
words
}
}
query demoWithoutName {
demo {
words
}
}
GraphQL provides built-in mechanism for specifying which fields to return like fragments and the #skip and #include directives. It does not, however, have any built-in mechanism for filtering (or, for that matter, sorting, pagination, etc.). The server has to implement a way to filter fields by adding the appropriate arguments to fields and changing the field resolution logic to account for the values of those arguments.