[WS] Validate GraphQL request body against a GraphQL schema (PoC)


  • This Proof of Concept (PoC) is not ready for production use. We recommend using this PoC for evaluation purposes only.
  • Download Katalon Studio version 8.4.0 beta.


Validate a GraphQL request body against a GraphQL schema. The GraphQL schema input can be a GraphQL string, URL, or file path.


Parameter Parameter Type Mandatory Description
request RequestObject Required Specify the request object that needs to be validated.
graphqlSchema String Required Specify the GraphQL schema used to validate the request.
flowControl FailureHandling Optional Specify failure handling schema to determine whether the execution should be allowed to continue or stop.


Parameter Type Description
  • true: the request passes the validation.
  • false: the request doesn't pass the validation.


If Katalon Studio cannot find the schema file, the request does not have a body content, or the request doesn't pass the validation, throw: StepFailedException.


You want to validate a GraphQL request body against a GraphQL schema before sending the request.

import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpoint
import static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase
import static com.kms.katalon.core.testdata.TestDataFactory.findTestData
import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject
import static com.kms.katalon.core.testobject.ObjectRepository.findWindowsObject
import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint
import com.kms.katalon.core.cucumber.keyword.CucumberBuiltinKeywords as CucumberKW
import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile
import com.kms.katalon.core.model.FailureHandling as FailureHandling
import com.kms.katalon.core.testcase.TestCase as TestCase
import com.kms.katalon.core.testdata.TestData as TestData
import com.kms.katalon.core.testng.keyword.TestNGBuiltinKeywords as TestNGKW
import com.kms.katalon.core.testobject.RequestObject
import com.kms.katalon.core.testobject.TestObject as TestObject
import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI
import com.kms.katalon.core.windows.keyword.WindowsBuiltinKeywords as Windows
import internal.GlobalVariable as GlobalVariable
import org.openqa.selenium.Keys as Keys

// User wants to validate a GraphQL query in request body before sending the request
RequestObject req = findTestObject('Country/CountryQuerySchema');
String graphQLSchema = 
type Continent {
	code: ID!
	name: String!
	countries: [Country!]!
type Country {
	code: ID!
	name: String!
	native: String!
	phone: String!
	continent: Continent!
	capital: String
	currency: String
	languages: [Language!]!
	emoji: String!
	emojiU: String!
	states: [State!]!
type State {
	code: String
	name: String!
	country: Country!
type Language {
	code: ID!
	name: String
	native: String
	rtl: Boolean!
input StringQueryOperatorInput {
	eq: String
	ne: String
	in: [String]
	nin: [String]
	regex: String
	glob: String
input CountryFilterInput {
	code: StringQueryOperatorInput
	currency: StringQueryOperatorInput
	continent: StringQueryOperatorInput
input ContinentFilterInput {
	code: StringQueryOperatorInput
input LanguageFilterInput {
	code: StringQueryOperatorInput
type Query {
	continents(filter: ContinentFilterInput): [Continent!]!
	continent(code: ID!): Continent
	countries(filter: CountryFilterInput): [Country!]!
	country(code: ID!): Country
	languages(filter: LanguageFilterInput): [Language!]!
	language(code: ID!): Language

if (WS.validateGraphQLBodyAgainstSchema(req, graphQLSchema)) {
	res = WS.sendRequest(req)