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template.go
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/
template.go
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package main
import (
"bytes"
"encoding/json"
"html"
"io/ioutil"
"net/http"
"strings"
"text/template"
)
func downloadURL(url string, client *http.Client) (string, error) {
res, err := client.Get(url)
if err != nil {
return "", err
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return "", err
}
return string(body), nil
}
func templateParse(text string, m map[string]interface{}) (string, error) {
t, err := template.New("").Parse(text)
if err != nil {
return "", nil
}
out := new(bytes.Buffer)
if err := t.Execute(out, m); err != nil {
return "", err
}
return html.UnescapeString(out.String()), nil
}
func handle(apiUrl string, templ string, client *http.Client) (string, error) {
body, err := downloadURL(apiUrl, client)
if err != nil {
return "", err
}
jm := map[string]interface{}{}
if err := json.Unmarshal([]byte(body), &jm); err != nil {
return "", err
}
templated, err := templateParse(templ, jm)
if err != nil {
return "", err
}
return strings.TrimSpace(templated), nil
}