ambiorix-examples - 02: static files

Run app

cd into the 02_static_files/ dir:
```
cd 02_static_files/
```
Fire up R:
```
R
```
Restore package dependencies:
```
renv::restore()
```
Once done, exit R.
index.R is the entry point. To start the app, run this on the terminal:
```
Rscript index.R
```

This app starts a server and listens on port 3000 for connections.

It has a single endpoint:

Now that the app is running, navigate to these links in your browser:

To serve static files such as images, CSS files, JavaScript files etc., use the app$static() method.

For example, let’s say this is your directory structure:

|- index.R
|- public/
    |- index.html
    |- about.html
    |- image.jpg
    |- css
        |- styles.css
    |- index2.R
    |- main.js

To make the files accessible at the path /public, you’d do this:

app$static(path = "public", uri = "public")

So now you’ll be able to do this in your app:

app$get("/", \(req, res) {
  res$send(
    "<h1>Hello everyone!</h1>
    <img src='public/image.jpg'/>"
  )
})

By making the public/ folder static, any resource placed there can be accessed via the browser eg. http://localhost:3000/public/image.jpg

You can make static content accessible via your own custom path too.

For example, let’s use /static this time:

app$static(path = "public", uri = "static")

Then in your code you’ll use this:

app$get("/", \(req, res) {
  res$send(
    "<h1>Hello everyone!</h1>
    <img src='static/image.jpg'/>"
  )
})

All static files are exposed and can be accessed via the browser. DO NOT put sensitive files there.
You can also use htmltools tags instead of writing html strings.