type ID! was provided invalid value when passing a value of type String or Integer

[karmingc]

Hi,

I seem to be having some challenging time finding documentations about coercion when passing a value of type String to a query as it's returning ... type ID! was provided invalid value using a custom HTTP client. Any guidance or links would be helpful

...
String query = """
    query(
        $testID: ID!
    ) {
        testQuery(
            testID: $testID
        ) {
            ...               
        }
    } 
    """
...
CustomGraphQLClient client = GraphQLClient.createCustom(clientConfig.graphQlUrl(), (url, headers, body) -> {
    HttpHeaders httpHeaders = new HttpHeaders();
    headers.forEach(httpHeaders::addAll);
    ResponseEntity<String> exchange = restTemplate.exchange(url, HttpMethod.POST, new HttpEntity<>(
        body,
        httpHeaders
    ), String.class);
    return new HttpResponse(exchange.getStatusCode().value(), exchange.getBody());
});

GraphQLResponse graphQLResponse = client.executeQuery(query, Map.of(
    "$testID",
    "123"
));
...

[karmingc]

In order to pass the arguments to the $testID, we needed to declare it as testID instead
ref: https://graphql.org/graphql-js/passing-arguments/

GraphQLResponse graphQLResponse = client.executeQuery(query, Map.of(
-    "$testID",
+    "testID",
    "123"
));