ninjarobot

#r "../../src/Farmer/bin/Debug/net5.0/Farmer.dll"
#r "nuget: FSharp.Text.Docker"

open System
open Farmer
open Farmer.ContainerApp
open Farmer.Builders
open FSharp.Text.Docker.Builders

// Create Container Registry

kMutagene

open Dash.NET; open Plotly.NET; open FSharp.Data; open Deedle; open System; open System.IO; open System.Text; open System.Text.RegularExpressions

let req = Http.Request("https://finance.yahoo.com/quote/AMZN/history?p=AMZN",httpMethod=HttpMethod.Get)
let body = match req.Body with | HttpResponseBody.Text b -> b
let crumb = Regex("CrumbStore\":{\"crumb\":\"(?<crumb>.+?)\"}").Match(body).Groups.["crumb"].Value
let cookie = req.Cookies.["B"]

let getDf ticker : Frame<System.DateTime,string> = 
    let response =
        Http.RequestString(        

AmadorMunozBerzosa

module Krow.Regex.ActivePatterns

open System.Text

let (|Regex|_|) (pattern:IRegex) input =
    if input = null then
        None
    else
        try
            let match' = RegularExpressions.Regex.Match(input, pattern |> Regex.evaluate)

nileshtrivedi

Raspberry Pi on Internet via reverse SSH tunnel

HackerNews discussed this with many alternative solutions: https://news.ycombinator.com/item?id=24893615

I already have my own domain name: mydomain.com. I wanted to be able to run some webapps on my Raspberry Pi 4B running perpetually at home in headless mode (just needs 5W power and wireless internet). I wanted to be able to access these apps from public Internet. Dynamic DNS wasn't an option because my ISP blocks all incoming traffic. ngrok would work but the free plan is too restrictive.

I bought a cheap 2GB RAM, 20GB disk VM + a 25GB volume on Hetzner for about 4 EUR/month. Hetzner gave me a static IP for it. I haven't purchased a floating IP yet.

aheil

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# #                                                                                       # #
# # Upgrade Windows WSL 1.x Ubunto to latest release                                      # #
# #                                                                                       # #
# # Upgrade process based on:                                                             # #
# # https://medium.com/@rockey5520/wsl-ubuntu-upgrade-to-disco-dingo-19-04-b4abff20452d   # #
# #                                                                                       # #
# # Created: 2019/11/01 23:54:53                                                          # #
# # Last modified:                                                                        # #
# #                                                                                       # #

alfonsogarciacaro

Deploying an F# ASP.NET Core app to Azure

Last week I spent a lot of time trying to deploy an F# ASP.NET Core app (a Giraffe app, specifically) to Azure because the information to complete all the steps was scattered in several places. So I'm writing this hopefully it will save the pain to others :)

Preparation

The following steps are mostly taken from this guide and it's only necessary to do them once:

1. Create an account in Azure (or use an existing one)
2. Create a resource group (or use an existing one)

dmitry-a-morozov

Assert On Steroids

I find it useful to have assert statements in my code. It has several benefits:

• Self documents code expectations
• Establishes boundary checks between component
• Helps to pinpoint problems by failing fast, especially when you just started dealing with a new library
• Here is a good summary on using assertions.

In a dream world all this can be addressed by sophisticated type system but we all know it’s not going to happen any time soon.

haf

What should F# as a language contain?

• A default test framework like Expecto
• A default HTTP client like HTTP.fs
• A default web framework like Suave
• A default JS framework like Fable
• A default logging framework like Logary
• A default character parser combinator library like FParsec
• A default binary parser combinator library like FsAttoparsec
• A default concurrent programming framework like Hopac

latkin

<#
    Dumps capture group locations and names/numbers

    Example:
    > regexinfo 'Jenny: 555-867-5309' '(?<name>\w+):\s+(?<phone>(?:(?<area>\d{3})-)?(\d{3}-\d{4}))'
    [Jenny]: [[555]-[867-5309]]
    |        ||     |
    |        ||     1
    |        |area
    |        phone

sgoguen

Making Toys with F# - A Small Elm-like DSL in F#

I've been working on a talk about the virtues of building toy examples for the purpose of communicating ideas with simple interactive examples.

The toys I talk about in my presentation are based my interest in tools that allow programmers to quickly build web applications that allow them to explore their architecture. So to kickstart this series off, I want to introduce a simple