R: Get information about EUtils databases

entrez_info {rentrez} | R Documentation

## Get information about EUtils databases

### Description

Gather information about EUtils generally, or a given Eutils database. Note: The most common uses-cases for the einfo util are finding the list of search fields available for a given database or the other NCBI databases to which records in a given database might be linked. Both these use cases are implemented in higher-level functions that return just this information (`entrez_db_searchable` and `entrez_db_links` respectively). Consequently most users will not have a reason to use this function (though it is exported by `rentrez` for the sake of completeness.

### Usage

    entrez_info(db = NULL, config = NULL)

### Arguments

`db` | character database about which to retrieve information (optional)
`config` | config vector passed on to `httr::GET`

### Value

XMLInternalDocument with information describing either all the databases available in Eutils (if db is not set) or one particular database (set by 'db')

### See Also

`config` for available httr configurations

Other einfo: `entrez_db_links`, `entrez_db_searchable`, `entrez_db_summary`, `entrez_dbs`

### Examples

    ## Not run:
    all_the_data <- entrez_info()
    XML::xpathSApply(all_the_data, "//DbName", xmlValue)
    entrez_dbs()

    ## End(Not run)

[Package rentrez version 1.2.1 Index]