get_headlines: Returns selected headlines from newsapi.org
In CorrelAid/newsanchor: Client for the News API

Description Usage Arguments Value Examples

get_headlines returns live top and breaking headlines for a country, specific category in a country, single source, or multiple sources. You can also search with keywords. Articles are sorted by the earliest date published first. To automatically download all results, use get_headlines_all().

Please check that the api_key is available. You can provide an explicit definition of the key or use set_api_key().

Valid searchterms are provided in the data sets terms_category, terms_country or terms_sources.

get_headlines(
  query = NULL,
  category = NULL,
  country = NULL,
  sources = NULL,
  page = 1,
  page_size = 100,
  api_key = Sys.getenv("NEWS_API_KEY")
)

`query`	Character string that contains the searchterm.
`category`	Character string with the category you want headlines from.
`country`	Character string with the country you want headlines from.
`sources`	Character vector with with IDs of the news outlets you want to focus on (e.g., c("usa-today", "spiegel-online")).
`page`	Specifies the page number of your results that is returned. Must be numeric. Default is first page. If you want to get all results at once, use `get_headlines_all` from 'newsanchor'.
`page_size`	The number of articles per page that are returned. Maximum is 100 (also default).
`api_key`	Character string with the API key you get from newsapi.org. Passing it is compulsory. Alternatively, a function can be provided from the global environment (see `set_api_key`).

List with two dataframes:
1) Data frame with results_df
2) Data frame with meta_data

## Not run: 
df <- get_headlines(sources = "bbc-news")
df <- get_headlines(query = "sports", page = 2)
df <- get_headlines(category = "business")

## End(Not run)