Module cynic::selection_set [−][src]
Expand description
SelectionSet
s are the core building block of GraphQL queries in cynic.
A SelectionSet
represents part of a query with one or more fields that
should be queried, and details of how those fields should be deserialized
after the query is run.
The functions in this module fall into a few categories:
- Functions that decode scalar values, such as
int
&bool
. - Functions that decode container types such as
vec
&option
. These take a selection set that is used to decode the contents of the container. - The
field
function, which selects a particular field of an object, and uses another selection set to decode the type of that object. - Combinators like the
map
,map2
etc, functions that combine multiple selection sets into a single type.
Cynic provides Query DSL generation & derive macros that mean for many cases you shouldn’t need to use the functions in this module directly. However for more advanced use cases (or if you dislike macros) these can still be useful.
Re-exports
pub use map as map1;
Structs
A SelectionSet
is a combination of a set of fields to fetch as part of a
GraphQL query and a decoder function that will decode the results of that
query.
Traits
A marker trait used to encode GraphQL subtype relationships into the Rust typesystem.
Functions
Creates a SelectionSet
that will decode a bool
Creates a SelectionSet
for decoding a GQL enum with a function.
Creates a SelectionSet
that always fails to decode.
Selects a field from a GraphQL object, decoding it with another SelectionSet
Selects an aliased field from a GraphQL object, decoding it with another SelectionSet
Creates a SelectionSet
that will decode an f64
Creates a SelectionSet that adds some inline fragments to a query.
Creates a SelectionSet
that will decode an i32
Creates a SelectionSet
that will decode into a serde_json::Value
Applies a function to the result of a selection.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Applies a function to the result of some SelectionSets.
Creates a SelectionSet
that decodes a nullable into an Option
Creates a SelectionSet
that will decode a type that implements Scalar
Creates a SelectionSet
that will decode a type that implements serde::Deserialize
Creates a SelectionSet
that will decode a String
Creates a SelectionSet
that always decodes succesfully to a particular value
Creates a SelectionSet
that always decodes succesfully to the result of a function
Creates a SelectionSet
that decodes a Vec of inner_selection