What is an API?

  • Getting data from an API is equivalent to requesting a webpage
  • GET requests specify what data we want to retrieve in the URL
  • POST requests specify what data we want to retrieve in the body of the request.
  • Both requests have headers that we can manipulate to get what we want.

GETting data

  • 200 is the internet code for everything is OK
  • GET requests can be adjusted to specify desired result
  • Dad jokes are not really that good.

Using POST

  • “POST requests to servers put specific demands on how we request data”
  • “Using an API requires us to understand (some of) the ways the API works”
  • “Different searches typically requires different endpoints”

What about danstat?

  • Larger services often provide packages to make it easier to use their API

A short note on timeA relatively short session on time.

  • Working with time and dates can be complicated. Lubridate makes it easier
  • Special date-time formats can be handled using the library zoo

ggplot2

  • ggplot2 is a flexible and useful tool for creating plots in R.
  • The data set and coordinate system can be defined using the ggplot function.
  • Additional layers, including geoms, are added using the + operator.
  • Boxplots are useful for visualizing the distribution of a continuous variable.
  • Barplots are useful for visualizing categorical data.
  • Faceting allows you to generate multiple plots based on a categorical variable.

Whats next?

  • “Practice makes perfect”
  • “KUB Datalab offers lots of courses and consultations”
  • “The web is overflowing with tutorials and courses”