Package io.github.microcks.util.graphql

Class GraphQLSchemaValidator

java.lang.Object

io.github.microcks.util.graphql.GraphQLSchemaValidator

public class GraphQLSchemaValidator
extends Object

Helper class for validating Json objects against their GraphQL schema. Supported version of GraphQL schema is https://spec.graphql.org/October2021/.

Author:

laurent

Field Summary

Fields

Modifier and Type	Field	Description
static final String	GRAPHQL_RESPONSE_DATA

Constructor Summary

Constructors

Constructor	Description
GraphQLSchemaValidator()

Method Summary

Modifier and Type	Method	Description
static com.fasterxml.jackson.databind.JsonNode	buildResponseJsonSchema(String schemaText, String query)	Build a JSON Schema that should apply to a GraphQL response giving the API GraphQL SDL and the query specification.
static List<String>	validateJson(com.fasterxml.jackson.databind.JsonNode schemaNode, com.fasterxml.jackson.databind.JsonNode jsonNode)	Commodity method: just a shortcut to JsonSchemaValidator.validateJson(schemaNode, jsonNode)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

GRAPHQL_RESPONSE_DATA

public static final String GRAPHQL_RESPONSE_DATA

See Also:

• Constant Field Values

Constructor Details

GraphQLSchemaValidator

public GraphQLSchemaValidator()

Method Details

buildResponseJsonSchema

public static com.fasterxml.jackson.databind.JsonNode buildResponseJsonSchema(String schemaText,
 String query)
                                                                       throws IOException

Build a JSON Schema that should apply to a GraphQL response giving the API GraphQL SDL and the query specification. Query specification allows to get structure and mandatory fields from selection ; Schema allows to get type definition (scalar, arrays, objects).

Parameters:

schemaText - The text representation of a GraphQL Schema

query - The text representation of a GraphQL query

Returns:

The Jackson JsonNode representing the Json schema for response

Throws:

IOException - if parsing of either schema of query fails

validateJson

public static List<String> validateJson(com.fasterxml.jackson.databind.JsonNode schemaNode,
 com.fasterxml.jackson.databind.JsonNode jsonNode)

Commodity method: just a shortcut to JsonSchemaValidator.validateJson(schemaNode, jsonNode)

Parameters:

schemaNode - The Json schema specification as a Jackson node

jsonNode - The Json object as a Jackson node

Returns:

The list of validation failures. If empty, json object is valid !