this is a small (40-120kb gziped) part of iso3166-2-db library. Contains only English names for the world from UN point of view

1  // get major export. 120kb gzipped
2  import countryNames from 'the-country-names';
3  // as long the-country-names is a simple json file
4  // countryNames will be a simple js object, with good autocomplete
5  
6  // get minor export, 40kb gzipped
7  import countryNames from 'the-country-names/list';
8  // to get a reduced object, without references. Just names and codes
9  

The exported types are

1interface countryNames {    
2   [iso3166_1: string]: Country;    
3}
4
5interface Country {      
6    name: string, // name of a country
7    iso: string,  // 2 letter ISO3166-1 code, same as the key
8    iso3: string, // 3 letter ISO3166-1 code
9    numeric: 20,  // numeric ISO3166-1 code
10    fips: "AN",   // FIPS code
11    reference: Reference,
12    regions: Array<Region>
13}
14
15interface Region {
16    name: string,
17    iso: string,    // iso3166-2 code
18    fips: string,   // fips code
19    admin: string,  // national code
20    reference: Reference,
21}
22
23interface Reference {
24    geonames: number,      // geonames id
25    openstreetmap: number, // OSM relation Id
26    wikipedia: string      // wikipedia article
27    wof?: number            // whosonfirst id
28}

Please refer to the bin/create.js, if you have any questions.