Module json

JSON Conversion

The graphql_query::json module contains utilities to convert from and to serde_json values. Any values that are converted to graphql_query_rs’ structures are represented as AST values. introspection data. This information may then be used to validate and introspect a schema as to possible queries that may be written against it.

The ValueFromNode trait allows conversion to serde_json values using a to_json method on any given value. This methods converts without using any type information.

The module otherwise only contains a handful of utility functions:

• ast_variables_from_value is used to create a Variables map for a given JSON value.
• ast_from_value is used to convert any given JSON value to AST values while casting it.
• ast_from_value_untyped is used to convert any given JSON value to AST values without casting.
• value_from_ast_variables is used to convert AST Variables back to a JSON value.
• value_from_ast is used to convert a given AST value to a JSON value while filling in variables.

Traits

ValueFromNode

Trait for convertin AST Value Nodes of a GraphQL language document to serde_json::Values.

Functions

ast_from_value

Convert serde_json::Value to an AST Value Node given a Type definition.

ast_from_value_untyped

Convert serde_json::Value to an AST Value Node without casting the JSON value to a type.

ast_variables_from_value

Convert serde_json::Value to Variables given VariableDefinitions.

value_from_ast

Convert AST Value Node back to a serde_json::Value given a Type definition.

value_from_ast_untyped

Convert AST Value Node to a serde_json::Value with given Variables.

value_from_ast_variables

Convert Variables back to a serde_json::Value.