46 lines
1001 B
Go
46 lines
1001 B
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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func fetchAPI(ctx context.Context, client *http.Client,
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limit uint) (data serversData, err error) {
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url := "https://api.nordvpn.com/v2/servers"
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url += fmt.Sprintf("?limit=%d", limit) // 0 means no limit
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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 serversData{}, 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 serversData{}, err
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}
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defer response.Body.Close()
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if response.StatusCode != http.StatusOK {
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return serversData{}, fmt.Errorf("%w: %s", ErrHTTPStatusCodeNotOK, 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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return serversData{}, fmt.Errorf("decoding response body: %w", err)
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}
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if err := response.Body.Close(); err != nil {
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return serversData{}, err
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}
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return data, nil
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}
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