# Streamlining GraphQL Service Testing with Karate

DevFeed: [Streamlining GraphQL Service Testing with Karate](<https://devfeed.tech/articles/streamlining-graphql-service-testing-with-karate-28047.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2024-07-08-streamlining-graphql-service-testing-with-karate/>)

Author: Armin Aminian SRE; Cloud Native technologies GitHub profile Linkedin profile

Published: 2024-07-08T00:00:00Z

Content type: article

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [GraphQL](<https://devfeed.tech/topics/graphql.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Microservice](<https://devfeed.tech/topics/microservice.md>), [API](<https://devfeed.tech/topics/api.md>), [gateway](<https://devfeed.tech/topics/gateway.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [backend](<https://devfeed.tech/tags/backend.md>), [devops](<https://devfeed.tech/tags/devops.md>), [gateway](<https://devfeed.tech/tags/gateway.md>), [graphql](<https://devfeed.tech/tags/graphql.md>), [integrity](<https://devfeed.tech/tags/integrity.md>), [microservice-architecture](<https://devfeed.tech/tags/microservice-architecture.md>), [quality-assurance](<https://devfeed.tech/tags/quality-assurance.md>), [release-engineering](<https://devfeed.tech/tags/release-engineering.md>), [rest](<https://devfeed.tech/tags/rest.md>), [schema](<https://devfeed.tech/tags/schema.md>), [services](<https://devfeed.tech/tags/services.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

The article describes trivago's move from a GraphQL monolith to a federated microservice architecture and explains the testing challenges this creates. It covers complex nested queries, schema validation, relationships, data integrity, and GraphQL's partial-data error responses.

## Source excerpt

Over the last year trivago refactored the existing GraphQL monolith and moved to a microservice architecture, in what is also known as a federated setup. Federated GraphQL, as championed by Apol...