1package main
 2
 3import "encoding/json"
 4
 5const gemojiURL = "https://raw.githubusercontent.com/github/gemoji/master/db/emoji.json"
 6
 7type gemoji struct {
 8	Emoji   string   `json:"emoji"`
 9	Aliases []string `json:"aliases"`
10}
11
12func fetchGemojis() (map[string]string, error) {
13	b, err := fetchData(gemojiURL)
14	if err != nil {
15		return nil, err
16	}
17
18	var gemojis []gemoji
19	r := make(map[string]string)
20
21	if err = json.Unmarshal(b, &gemojis); err != nil {
22		return nil, err
23	}
24
25	for _, gemoji := range gemojis {
26		for _, alias := range gemoji.Aliases {
27			if len(alias) == 0 || len(gemoji.Emoji) == 0 {
28				continue
29			}
30
31			r[makeAlias(alias)] = gemoji.Emoji
32		}
33	}
34
35	return r, nil
36}