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https://github.com/fika-lang/fika

A statically typed functional programming language for the web.
https://github.com/fika-lang/fika

elixir erlang functional-programming programming-language statically-typed

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A statically typed functional programming language for the web.

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README 

        



[![FOSSUnited](http://fossunited.org/files/fossunited-badge.svg)](https://fossunited.org/)   

[![Discord](https://img.shields.io/discord/756840900952588321?color=7389D8&label=Discord&logo=discord&logoColor=white&style=plastic)](https://discord.gg/zNs6Gs5)



-----



Fika is a modern programming language for the web.

It is statically typed, functional and runs on the BEAM (Erlang VM).



### Current status



Actively developed. Not ready for production use or HackerNews.

Currently I'm working on an incremental compiler on a long running branch.



If you'd like to keep tabs on our progress, please [subscribe to our updates here](https://tinyletter.com/fika).



### Syntax



Here's a quick walkthrough of Fika's syntax: [example.fi](https://github.com/fika-lang/fika/blob/main/example.fi)



### Running Fika programs



Fika is written in Elixir, so make sure you have that installed.

Follow [these instructions](https://elixir-lang.org/install.html) to install

Elixir. Next, clone this repo, cd into the directory and then follow the below instructions.



#### Using Elixir shell



```

# Install dependencies and run the Elixir shell

mix deps.get

iex -S mix



# In the Elixir shell, compile and load a Fika file using the following:

> Fika.Code.load_module("example")



# Now you can run functions from the module like this:

> :example.sum(40, 2)

> 42

```



#### Using `fika` executable



```

# Create the executable

mix release



# The above command creates an executable in the path ./_build/prod/rel/bakeware/fika

# Call the function example.sum(1, 2) from the file example.fi

./_build/prod/rel/bakeware/fika exec --function="foo()" example

```



PS: If you're developing Fika, the recommended way to try Fika code is to use

the Elixir shell which is documented above because this is faster.



### Your first HTTP server



Fika comes with a web server which allows you to quickly create HTTP request

handlers. Note: This web server is a prototype currently and only responds with

strings and a 200 status code.



```elixir

# Inside examples/router.fi



fn routes : List({method: String, path: String, handler: Fn(->String)}) do

  [

    {method: "GET", path: "/", handler: &hello},

    {method: "GET", path: "/foo", handler: &bar}

  ]

end



fn hello : String do

  "Hello world"

end



fn bar : String do

  "Bar"

end

```



Now start the webserver in one of two ways:



#### Using Elixir shell



```

iex -S mix

# A web server is started automatically using the router `examples/router.fi`

```



#### Using `fika` executable



```

# Create the executable

mix release



# router.fi is in the `examples` folder

cd examples

../_build/prod/rel/bakeware/fika

```



Now open `http://localhost:9090` in the browser to see "Hello world" served

by Fika. Changes to the router are picked up automatically.



### Fika together!



If you'd like to be part of the Fika community, you can find us here:



[![Discord server](https://github.com/fika-lang/assets/blob/master/discord_server.png?raw=true)](https://discord.gg/zNs6Gs5)  

This is the best place to chat with Fika developers, ask questions or get guidance

on contributing to Fika. We also livestream some talks and pair programming sessions here.

[Here's the link to join.](https://discord.gg/zNs6Gs5)



[![Hackers list](https://github.com/fika-lang/assets/blob/master/hackers_list.png?raw=true)](https://tinyletter.com/fika)  

This is an email digest where we send out the latest updates

about Fika and our ecosystem. [Here's the link to subscribe.](https://tinyletter.com/fika)



If you'd like to contact the creator of Fika, you can find Emil Soman on

[twitter](https://twitter.com/emilsoman) or drop a mail to `[email protected]`.



### Thanks



Fika's development is supported by its many contributors and [the grant from

FOSSUnited](https://forum.fossunited.org/t/foss-hack-2020-results/424). Thank you!