JarCasting
Test GraphQL Java
This library let's you to convert the GraphQL file to a simple string which can be used as a request payload using any HTTP client library.
I've written this library for the simple GraphQL API Testing. There is a graphql-java library which let's you to implement GraphQL server in Java. My main goal is not to introduce Spring Boot just for the sake of testing the GraphQL API. I wanted to keep it simple!
To use this library, you can download from Maven:
<dependency>
<groupId>com.vimalselvam</groupId>
<artifactId>test-graphql-java</artifactId>
<version>1.0.0</version>
</dependency>
I don't use Gradle, but it should be simple to add this as a gradle dependency.
Getting Started
There are two ways to load the GraphQL file.
-
using
InputStream:InputStream iStream = getClass().getResourceAsStream("/graphql/pokemon.graphql");
Here the
pokemon.graphqlfile in undersrc/test/resources/graphql/pokemon.graphql. -
using
File:File file = new File("src/test/resources/graphql/pokemon.graphql");
Once you read the file, just pass it to GraphqlTemplate class to parse as follows:
String graphqlPayload = GraphqlTemplate.parseGraphql(file, variables);
Here the variables is the com.fasterxml.jackson.databind.node.ObjectNode. If no variables, you just pass null.
To build the variables, you can do:
ObjectNode variables = new ObjectMapper().createObjectNode();
variables.put("name", "Pikachu");
Then you can use any HTTP Client and pass the graphqlPayload string as a body.
A sample test can be found here