CODEWITHSUNDEEP
f#f#-data
user1604008
user1604008

Reputation: 1025

Fsharp.data "Illegal characters in path"

I'm just getting started in F# and was exploring FSharp.Data. I'm trying to use a web service from www.ncdc.noaa.gov. The first problem is ncdc wants a token in the request. I attempted to work around that with the following:

let apiUrl = "http://www.ncdc.noaa.gov/cdo-web/api/v2/data?datasetid=GHCND&locationid=ZIP:28801&startdate=2010-04-01&enddate=2010-04-01"
    let aRequestString = 
            Http.RequestString(
                apiUrl, 
                httpMethod="GET", 
                headers = [ "token", "mytoken"])
    let sf = WeatherData.Load(aRequestString)

This seems to work - fiddler says I get a result that looks good to me and JSONLint, but I get "Illegal characters in path." from the provider.

The stack trace shows:

System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional)
System.IO.Path.Combine(String path1, String path2)
FSharp.Data.Runtime.IO.UriResolver.Resolve(Uri uri)
FSharp.Data.Runtime.IO.asyncRead(FSharpOption`1 _tp, UriResolver uriResolver, String formatName, String encodingStr, Uri uri)
[email protected](Uri uri)

Upvotes: 1

Views: 337

Answers (1)

Tomas Petricek
Tomas Petricek

Reputation: 243051

The Load method takes a URL or a file path and it loads data from there. If you're downloading the data on your own, you need to use the Parse method instead.

let apiUrl = "http://www.ncdc.noaa.gov/cdo-web/api/v2/data?datasetid=...."
let aRequestString = 
        Http.RequestString(
            apiUrl, 
            httpMethod="GET", 
            headers = [ "token", "mytoken"])
let sf = WeatherData.Parse(aRequestString) 
//                   ^^^^^

Upvotes: 3

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