Execution failed for task ':graphqlIntrospectSchema'

[DmitryevichD]

Hi!
I want to use your plugin in my project. I read the manual, but can't assemble the project.
When I run ./gradlew build I have the problem:

Execution failed for task ':graphqlIntrospectSchema'.
> kotlin/coroutines/AbstractCoroutineContextKey

My Project

Can you help me with the problem?

Thanks!

[dariuszkuc]

Hello 👋
That error generally implies some classpath issue. My guess is that the issue is from Kotlin version mismatch -> graphql-kotlin plugin attempts to pull in version 1.3.x whereas you apply Kotlin 1.4 plugin. Can you downgrade to Kotlin version 1.3.72 and see whether this fixes your issue?

[DmitryevichD]

I downgraded the version to 1.3.72, but this case didn't work too.
After that, I tried starting gradle-client from the repository.
I started the server and the client, and

Execution failed for task ':graphqlGenerateClient'.
> unable to find corresponding field definition of retrieveBasicObject in Query

Please help me run your examples

[dariuszkuc]

The above error implies that your queries do not match the target server (looks like you are using queries from example gradle client which should work against the sample server). Make sure that your queries are written against a valid server.

[DmitryevichD]

Thank you for your answer, can I ask one more? :)
I should use Rest API and GraphQL together. Can I add some property, for example as graphql-java

graphql:
  servlet:
    mapping: /my/custom/graphql/mapping

for the dispatcher servlet to make a mapping request to graphql?

P.S.

graphql:
   endpoint: /my/custom/endpoint

this case doesn't work, dispatcher servlet doesn't know how to mapping a path

[dariuszkuc]

Unfortunately you won't be able to use graphql-kotlin-spring-server with a servlet libraries. We've built our library on top of Spring Webflux (reactive) which is an alternative to Spring MVC (blocking/servlet) and you cannot use both in the same project - see https://expediagroup.github.io/graphql-kotlin/docs/spring-server/spring-overview#webflux-vs-webmvc.

You definitely can expose your REST endpoints using Spring Webflux (e.g. by default graphql-kotlin-spring-server exposes /sdl). See Spring docs for details.