62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
package updater
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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)
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var (
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errHTTPStatusCodeNotOK = errors.New("HTTP status code not OK")
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)
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type apiData struct {
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Servers []apiServer `json:"servers"`
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}
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type apiServer struct {
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OpenVPNHostname string `json:"openvpn_hostname"`
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WireguardHostname string `json:"wireguard_hostname"`
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Country string `json:"country"`
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Region string `json:"region"`
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City string `json:"city"`
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WgPubKey string `json:"wg_public_key"`
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}
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func fetchAPI(ctx context.Context, client *http.Client) (
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data apiData, err error) {
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// TODO: adapt this URL and the structures above to match the real
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// API models you have.
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const url = "https://example.com/servers"
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request, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
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if err != nil {
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return data, err
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}
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response, err := client.Do(request)
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if err != nil {
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return data, err
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}
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if response.StatusCode != http.StatusOK {
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_ = response.Body.Close()
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return data, fmt.Errorf("%w: %d %s",
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errHTTPStatusCodeNotOK, response.StatusCode, response.Status)
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}
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decoder := json.NewDecoder(response.Body)
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if err := decoder.Decode(&data); err != nil {
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_ = response.Body.Close()
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return data, fmt.Errorf("failed unmarshaling response body: %w", err)
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}
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if err := response.Body.Close(); err != nil {
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return data, fmt.Errorf("cannot close response body: %w", err)
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}
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return data, nil
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}
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