Get url parameters in NancyFx

39
votes

I am using NancyFx to build a web API, but I am facing some problems when getting parameters from the URL.

I need to send, to the API, the request .../consumptions/hourly?from=1402012800000&tags=%171,1342%5D&to=1402099199000 and catch the value of the parameters: granularity, from, tags and to. I tried several approches and none worked. I tried, for example,

Get["consumptions/{granularity}?from={from}&tags={tags}&to={to}"] = x =>
{
    ...
}

How can I do this?

Luis Santos

3
nancy

3 Answers

77
votes

There are 2 things that you are trying to get from the URL. One is a part of the path hourly - and the other is the parameters in the query string - namely the values for from and to.

You can get to the part of the path through the parameter to the handler - the x in your example.

You can get to the query string through the Request which is accessible on the NancyModule.

To put this in code:

Get["consumptions/{granularity}"] = x =>
{
    var granularity = x.granularity;
    var from = this.Request.Query["from"];
    var to = this.Request.Query["to"];
}

The variables granularity. from, and to are all dynamic, and you may need to convert them to whatever type you want.

17
votes

You can let NancyFx's model binding take care of the url query string.

public class RequestObject 
{
    public string Granularity { get; set; }
    public long From { get; set; }
    public long To { get; set; }
}

/consumptions/hourly?from=1402012800000&to=1402099199000

Get["consumptions/{granularity}"] = x =>
{
    var request = this.Bind<RequestObject>();
}
1
votes

You can simply use:

var from = Request.Query.from;