Can you explain the interop a bit more? I’ve been looking into an F# job. Having a functional background, the language looks nice, but I’m wondering about the ecosystem. Can you not use .Net libraries as easily as you can from C#?
Yes. Typically interop is very straightforward. You look in the api docs and copy paste.
Example here is the String doc[1]. Way down you see all the methods. Some of the methods have overloads (multiple variants). Pretty straightforward here. (E.g. `"mystring".Contains("ring")`)
Where it gets more verbose and finicky is when the API takes a C# callback. Even more complex is if it’s asynchronous so it takes a C# callback as a Task.
An example being the `.Use` method for defining server middleware.[2]
To see how it’s done, here’s a gist I found.[3] Notice how the function for requestHandler is verbosely annotated with Func<> and RequestDelegate, etc.
Luckily this isn’t the norm, most APIs are less complicated. Even so, you write a wrapper (abstraction) around that complexity and only look at your wrapper. Which is why someone in this thread said to leave them in a dark corner.
