I installed FSharp.Data.Toolbox.Twitter.03 from Nuget, and it added the package FSharp.Data.FSharp.Data.2.0.7. But this version of FSharp.Data doesn't work with this version of FSharp.Data.Toolbox.Twitter. It produces the runtime error:

"System.TypeLoadException: Could not load type 'FSharp.Data.Runtime.BaseTypes.IJsonDocument' from assembly 'FSharp.Data, Version=2.0.7.0, Culture=neutral, PublicKeyToken=null'. at FSharp.Data.Toolbox.Twitter.Utils.requestAppOnlyToken(String consumerKey, String consumerSecret)"

To fix, I installed FSharp.Data by itself from Nuget first. This gave me FSharp.Data.2.1.1, which appears to work with FSharp.Data.Toolbox.Twitter.03.

Another possibly interesting data source: http://developer.yahoo.com/yql/console/

(Moved from fsprojects/FSharp.Data#212)

Please, publish package with #6 fixes.

Compiled assembly using JSON provider (FSharp.Data.Toolbox.Twitter.dll) requires sample json files. Can we modify the project so that the files are not needed when using the Twitter provider?

Here's some sample XML, simplified from what you get back when calling Azure's service management API.

Note how the TP correctly understands that Locations are nested and shows a collection of Locations. However, it does not do the same for AvailableServices and it's shown twice (i.e. AvailableServices.AvailableServices.)

GitHub issues keeps removing the XML so I've linked to it here: https://gist.github.com/isaacabraham/31ce34c49b7e9ac6620b

with that XML you can do stuff like: -

type locationXml = XmlTypeProvider < sample xml >
let locationData = locationXml.GetSample()
locationData.Locations.[0].AvailableServices.AvailableServices.[0]

with the following error:

Microsoft.FSharp.Compiler.ErrorLogger+UnresolvedPathReferenceNoRange:  Exception of type 'Microsoft.FSharp.Compiler.ErrorLogger+UnresolvedPathReferenceNoRange' was thrown.
    at Microsoft.FSharp.Compiler.Tast.CcuThunk.EnsureDerefable(String[] requiring
Path) in C:\GitHub\fsharp\FSharp.Compiler.Service\src\fsharp\tast.fs:line 3035
at Microsoft.FSharp.Compiler.Tast.NonLocalEntityRef.TryDeref(Boolean canError) in C:\GitHub\fsharp\FSharp.Compiler.Service\src\fsharp\tast.fs:line 2452
at Microsoft.FSharp.Compiler.Tast.EntityRef.get_Deref() in C:\GitHub\fsharp\FSharp.Compiler.Service\src\fsharp\tast.fs:line 2537
at Microsoft.FSharp.Compiler.Tastops.stripTyEqnsA(TcGlobals g, Boolean canShortcut, TType ty) in C:\GitHub\fsharp\FSharp.Compiler.Service\src\fsharp\tastops.fs:line 616
at Microsoft.FSharp.Compiler.Infos.GetSuperTypeOfType(TcGlobals g, ImportMapamap, range m, TType typ) in C:\GitHub\fsharp\FSharp.Compiler.Service\src\fsharp\infos.fs:line 49

It depends when FSharp.Data is migrated to netcoreapp?

Hi guys;

I tried to learn how to use Twitter API from F# language written in great modernized F# book "F# Deep Dives" chapter 5. Example codes which is shown below links works well.

• https://github.com/evelinag/DeepDives/tree/master/Chapter05

On the other hand, it did not work when I downloaded the newest library from nuget.
I think that the same problem to issue 1 happens in F# Data 2.1.1 because the error message is the same.

• FSharp.Data.Toolbox.dll requires sample json files(issue 1)

Do we need something like this in the build script to release the new website documents?

cc: @evelinag

Hi @tpetricek and @evelinag,

Can you put new builds of this on nuget.org? In particular, I would like the SAS type provider with the new date format uploaded.

I tool the liberty of updating the release notes. Perhaps the biggest user-facing change is the update to the new fsdocs version of FSharp.Formatting. I used the new default style which is mostly the same as before, minus the FsLab header images.

Thanks!

I'm getting intermittent 'Thread was being aborted' exception when building Twitter project. Link to failed build.

Referencing: http://fsprojects.github.io/FSharp.Data.Toolbox/TwitterProvider.html

When building a F# console application (as opposed to FSI) application-only authentication works just fine.

However
let connector = Twitter.Authenticate(key, secret)
fails with:

System.Threading.ThreadStateException was unhandled
Message: An unhandled exception of type 'System.Threading.ThreadStateException' occurred in System.Windows.Forms.dll
Additional information: ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated because the current thread is not in a single-threaded apartment.

see https://github.com/fsprojects/FSharp.Data.Toolbox/blob/master/build.sh#L14

This last line "overwrites" FAKE's exit code and results in false negatives in Travis - see https://travis-ci.org/tpetricek/FSharp.Data.Toolbox/builds/24062286

/cc @evelinag @tpetricek

These two links have good descriptions of the urls:

• https://code.google.com/p/yahoo-finance-managed/wiki/CSVAPI
• http://www.jarloo.com/yahoo-stock-symbol-lookup/

A Facebook type provider like the Twitter type provider would be generally useful.

@SpiegelSoft You mentioned this during your Vulpes talk at the F# user group. This project would be a good place for the MNIST parser. Currently, it only has Twitter connector, but the idea is to include a wide range of useful data-related stuff!

Please update to use the latest version of ProvidedTypes.fs, as described in fsprojects/FSharp.TypeProviders.SDK#121

Many thanks
Don

There are discussions about an HDF5 type provider, for example see the discussion and links here https://twitter.com/RodhernACT/status/662202241768665088

FSharp.Data.Toolbox would be a natural eventual landing home for this given the inclusion of an SAS type provider in this project already.

Here are some relevant resources. If you know of more please chime in below

• You can find out more about HDF5 here https://www.hdfgroup.org/HDF5/
• The HDF5 User Guide is long but very comprehensive
• There is an existing wrapper of the HDF5 native binaries for .NET. This looks a little old (circa 2005?) and some users have reported some issue with using this wrapper. It's also not clear if the library is under active development.
• There is also a relevant PowerShell adaptor for HDF5 that is more recent (circa 2011?) which uses PowerShell's "provider" model to give a file-system like embedding of the information space into the programming model. This may provide inspiration for what an HDF5 type provider for F# can look like.
• Robert Nielsen (twitter) has done a prototype HDF5 provider and is looking at getting the source out onto github. Having the source out as a compiling project would be a great starting base for a next round of work on this. Robert has blogged about F# and the prototype HDF5 provider. The source is linked from the blog.
• @memura is also interested in participating in this work and we're opening this issue as a place to discuss what the design of the type provider would be, e.g. what would be the experience of using typical HDF5 data files and what would it mean for the provider to be high performance, complete etc.
• There is a python pandas reader for HDF5 that may act as inspiration. For example, Deedle may want to include HDF5 access. (Coincidentally, the other data formats being read by Pandas mentioned on that page may also be of interest for FSharp.Data and Deedle over time)
• There is an HDF5 interface to R