convert dynamic object to C# object

Question

I’m looking to take a dynamic object from a third party API & convert to my C# object with minimal code. Sort of like what Dapper does with a SQL statement results to a C# object. Is there a library that would do this? I can do it manually like below, but it seems like alot of code to write everytime I want to retrieve from this API.

 public IEnumerable<Requirement> Get()
    {
        dynamic requirementsSelect;
        requirementsSelect = _RequirementsRepository.GetRequirements();
        IList<Requirement> Requirements = new List<Requirement>();
        foreach (var req in requirementsSelect)
        {
            Requirement requirement = new Requirement();
            requirement.Text = req.Text;
            requirement.Number = req.Number;
            Requirements.Add(requirement);
            foreach (var node in req.Phrases)
            {
                Requirement reqNode = new Requirement();
                reqNode.Text = node.Text;
                reqNode.Number = node.Number;
                requirement.Nodes.Add(reqNode);
        }
        return Requirements;
    }

Thanks

@MokhtarAshour I was thinking of Newtonsoft.Json but I want it to be a c# object - not json. thanks — shw
– shw, Commented Aug 7, 2016 at 10:56
@gypsyCoder sure, but I meant to send the JSON from the 3rd party API and deserialise it to a c# object you have in your code — Mokhtar Ashour
– Mokhtar Ashour, Commented Aug 7, 2016 at 11:00
@MokhtarAshour When I convert it to JSON - only one property is coming up. How can I specify what properties should be part of this dynamic object. I convert like this - string jsonString = JsonConvert.SerializeObject(requirements); and it's coming up like this in my browser- [{\"$id\":\"1\"},{\"$id\":\"2\"},{\"$id\":\"3\"}. Thanks — shw
– shw, Commented Aug 7, 2016 at 13:57
by default serialization is done to all properties (I assume it's .NET here). BTW what's $id ? — Mokhtar Ashour
– Mokhtar Ashour, Commented Aug 7, 2016 at 14:41

shw · Accepted Answer · 2016-08-15 10:01:42Z

1

I ended up returning the third party as JSON as follows. In my specific case the JSON wasn't showing the properties. I resolved by changing the dynamic object to IEnumerable and I was then able to specify which properties I wanted to retrieve using .Select.

IEnumerable<dynamic> requirements = _RequirementsRepository.GetRequirements();
        return JsonConvert.SerializeObject(new
        {
            Requirement = requirements.Select(x => x.Text),
            Number = requirements.Select(x => x.Number),
        });

Thanks!

answered Aug 15, 2016 at 10:01

shw

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