There are huge amounts of data around us that we could use to better understand the world. Every company collects large amounts of data about their sales or customers. Governments and international organizations increasingly release interesting data sets to the public through various open government data initiatives (data.gov or data.gov.uk). But raw data does not tell you much. An interesting recent development is data journalism. Data journalists tell stories using data. A data driven article is base[...]

There are huge amounts of data around us that we could use to better understand the world. Every company collects large amounts of data about their sales or customers. Governments and international organizations increasingly release interesting data sets to the public through various open government data initiatives (data.gov or data.gov.uk). But raw data does not tell you much. An interesting recent development is data journalism. Data journalists tell stories using data. A data driven article is based o[...]

The core of many web sites and web APIs is very simple. Given an HTTP request, produce a HTTP response. In F#, we can represent this as a function with type Request -> Response. To make our server scalable, we should make the function asynchronous to avoid unnecessary blocking of threads. In F#, this can be captured as Request -> Async<Response>. Sounds pretty simple, right? So why are there so many evil frameworks that make simple web programming difficult? Fortunately, there is a nice F# library called [...]

The core of many web sites and web APIs is very simple. Given an HTTP request, produce a HTTP response. In F#, we can represent this as a function with type Request -> Response. To make our server scalable, we should make the function asynchronous to avoid unnecessary blocking of threads. In F#, this can be captured as Request -> Async<Response>. Sounds pretty simple, right? So why are there so many evil frameworks that make simple web programming difficult? Fortunately, there is a nice F# library cal[...]

Most programming languages were designed before the age of web. This matters because the web changes many assumptions that typed functional language designers tak for granted. For example, programs do not run in a closed world, but must instead interact with (changing and likely unreliable) services and data sources, communication is often asynchronous or event-driven, and programs need to interoperate with untyped environments like JavaScript libraries. How can statically-typed programming languages [...]