Setting Array Variables

[jhurder-cvet]

Hi - sorry for the repeat questions! I have one more for you. I am using a number of variables in my query have applied the appropriate variables and arguments using the withArgument and withVariable methods. For the withVariable method, I did provide default values.

I then called the withVariable method on the GraphQLRequest object with the specific values. I find this works fine for String, Int, Double, ....however if I try to do so with a string array, it does not seem to work. As an example, here are the query parameters I am using:

{"variables":{"ref":"[\"HDORDSTS028\",\"HDORDSTS027\"]","cursor":"Y3Vyc29yOi0tLTE1NzNfXzE2NjM1ODU4NDE5MjI=","count":2}

Query looks like this, notice the ref and status variables are String arrays:

    public override GraphQLQueryNode GetQuery()
    {        
        GraphQLNode orderNode = new GraphQLNode('orders')  
            .withArgument('first', '$count')
            .withArgument('after', '$cursor')
            .withArgument('ref', '$ref')
            .withArgument('status', '$status')
            .withNode(new GraphQLNode('pageInfo', new List<string> {'hasPreviousPage', 'hasNextPage'}))
            .withNode(new GraphQLNode('edges', new List<string> {'cursor'})
                .withNode(new GraphQLNode('node')
                    .withFragment('OrderHeaderFields')
                    .withNode(new GraphQLNode('items')
                        .withNode(new GraphQLNode('edges')
                            .withNode(new GraphQLNode('node')
                                .withFragment('OrderLineFields'))))));      
        
        GraphQLQueryNode query = new GraphQLQueryNode('OrderQuery', orderNode);
        query.fragments.add(OrderHeaderQueryFragment.getFragment());
        query.fragments.add(OrderHeaderQueryFragment.getLineFragment());
        
        query.withVariable('count', 'Int = 10');
        query.withVariable('cursor', 'String = null');        
        query.withVariable('ref', '[String] = null');  
        query.withVariable('status', '[String] = null');  

        system.debug(query.build(true));
        

        return query;    
    }

This is the client call where I add the variables to the request:

    public GraphQLResponse Query(IFluentQuery fluentQuery)
    {   
        GraphQLQueryNode query = fluentQuery.GetQuery();

        GraphQLRequest request = new GraphQLRequest(query);
        request.withHeader('Authorization', 'Bearer ' + Session.access_token);
        request.withVariables(fluentQuery.GetVariables());

        System.debug(request.toString());
        // Create a new client and send the request
        IGraphQLClient client = new GraphQLHttpClient(m_fluentQueryUrl);
        GraphQLResponse response = client.send(request);        

        // Analyze the response
        Boolean hasData = response.hasData();
        Boolean hasErrors = response.hasErrors();
        if (hasErrors == true)
        {
            //TODO: throw exception, log
            System.debug(response.getErrors());
            return null;
        }

        return response;
    }

Do you have any thoughts as to what I may be doing wrong here?

[jhurder-cvet]

You can disregard, I figured out what the problem was. There was no need to build the string as a JSON array...instead I just added the String [] instead and it started working. I assume the work to build out the array variables in JSON format is being done in your code. Thanks again!

[IlyaMatsuev]

No problem, I'm glad you were able to figure this out!