# pico-http

A minimal HTTP server in C, with the hashtable and linked-list libraries it is built on.

## Layout

```
http/       server and routing framework
hashtable/  route table
llist/      bucket chaining for the hashtable
```

## Build

Needs `gcc` and `make`.

```sh
cd http && make
```

## Run

```sh
./pico-http
```

Listens on port 3000, set by `PORT` in `http/http.h`.

```sh
$ curl localhost:3000/login
Login works!

$ curl localhost:3000/signup
Sign Up works!
```

Unregistered paths return `400 Bad request`.

## Adding a route

A handler fills in `Res`:

```c
void hello(Req* req, Res* res)
{
    char* content = "Hello\n";

    res->status = 200;
    res->content_type = "text/html";
    res->content_length = strlen(content);
    res->body = content;
}
```

Register it before starting the server, in `main.c`:

```c
use("/hello", &hello);
http_start(PORT);
```

Paths match exactly — `/hello` will not match `/hello/`.

## Library tests

```sh
cd llist && make && ./test
cd hashtable && make && ./test
```

`make clean` in any of the three directories removes its objects and binary.