I got this error in graphql-java . {"errors":[{"message":"Variable \"$ids\" of required type \"[String!]!\" was not provided."

Question

I want fetch data from existing graphql endpoint in java.

import static io.restassured.RestAssured.given;
import java.util.ArrayList;
import java.util.List;
import io.restassured.RestAssured;
import io.restassured.http.ContentType;
import io.restassured.response.Response;

public class Universal {
    
static List<String> ids =new ArrayList<String>();

public static void main(String[] args) {
        Query query = new Query();
        
        query.setQuery("query universal($ids:[String!]!, $latestBy: String) {  
                          universal(is: $ids, latestBy: $latestBy) 
                            { price {
                                      requestedId                                                                       
                                      ClosePrice                                             
                                    }}}");
        
        QueryVariable variable = new QueryVariable();
        ids.add("98978C105");
        variable.setIds(ids);
        variable.setLatestBy("10");
        
        query.setVariable(variable);
        
            Response response = given()
                .log().all()
                .contentType(ContentType.JSON)
                .header("Authorization", "Bearer eyJhbGciOiJSUzUxMiJ9.eyJkYXRhX2Zpcm1faWQiOjE4NCwiY2xpZW50X3VzZXJfaWQiOjcwMjYsInVzZXJfaWQiOjI0Mzg5LCJ1c2VyX25hbWUiOiJhYmhpc2hlay56dm")
                .body(query)
                .when()
                .post("https://badjhuku52e.us-east-2.amazonaws.com/gql");
                System.out.println("API response body = " + response.getBody().asString());
    }
}

Here latestBy is no of outputs on those IDs. When I run this program.I got this error -

Body:
{
    "query": "query universal($ids:[String!]!, $latestBy: String){universal(ids: $ids, latestBy: $latestBy) {priceData{requestedId Closeprice }}}",
    "variable": {
        "ids": [
            "98978C105"
        ],
        "latestBy": "10"
    }
}
API response body = {"errors":[{"message":"Variable \"$ids\" of required type \"[String!]!\" was not provided.","locations":[{"line":1,"column":21}],"extensions":{"code":"INTERNAL_SERVER_ERROR","exception":{"stacktrace":["GraphQLError: Variable \"$ids\" of required type \"[String!]!\" was not provided.","    at coerceVariableValues (/var/task/node_modules/graphql/execution/values.js:105:11)","    at getVariableValues (/var/task/node_modules/graphql/execution/values.js:47:21)","    at buildExecutionContext (/var/task/node_modules/graphql/execution/execute.js:280:63)","    at execute (/var/task/node_modules/graphql/execution/execute.js:116:22)","    at execute (/var/task/node_modules/apollo-server-core/dist/requestPipeline.js:206:48)","    at processGraphQLRequest (/var/task/node_modules/apollo-server-core/dist/requestPipeline.js:140:34)","    at processTicksAndRejections (internal/process/task_queues.js:95:5)","    at async processHTTPRequest (/var/task/node_modules/apollo-server-core/dist/runHttpQuery.js:187:30)"]}}}]}

In this response body part shows that my ids in the form of List and List is not null. But ERROR says completely opposite

Answer 1

It should be variables not variable as follows:

{
    "query": "query universal($ids:[String!]!, $latestBy: String){universal(ids: $ids, latestBy: $latestBy) {priceData{requestedId Closeprice }}}",
    "variables": {
        "ids": [
            "98978C105"
        ],
        "latestBy": "10"
    }
}