Get ECOTOX download URL from EPA website — get_ecotox

This function downloads the webpage at https://cfpub.epa.gov/ecotox/index.cfm. It then searches for the download link for the complete ECOTOX database and extract its URL.

Usage

get_ecotox_url(verify_ssl = getOption("ECOTOXr_verify_ssl"), ...)

Arguments

verify_ssl: When set to FALSE the SSL certificate of the host (EPA) is not verified. Can also be set as option: options(ECOTOXr_verify_ssl = TRUE). Default is TRUE.
...: arguments passed on to httr2::req_options()

Value

Returns a character string containing the download URL of the latest version of the EPA ECOTOX database.

Details

This function is called by download_ecotox_data() which tries to download the file from the resulting URL. On some machines this fails due to issues with the SSL certificate. The user can try to download the file by using this URL in a different browser (or on a different machine). Alternatively, the user could try to use [download_ecotox_data](verify_ssl = FALE) when the download URL is trusted.

Author

Pepijn de Vries

Examples

if (FALSE) { # \dontrun{
get_ecotox_url()
} # }