Method Fetcher

pkg/config/shared.go:413–448

Fetcher returns fetch.Interface defined by conf. If no configuration source is set, this method returns nil, nil.

(ctx context.Context, httpClientProvider httpclient.Provider)

// Fetcher returns fetch.Interface defined by conf.
// If no configuration source is set, this method returns nil, nil.
func (c InteropClient) Fetcher(ctx context.Context, httpClientProvider httpclient.Provider) (fetch.Interface, error) {
	// TODO: Remove detection mechanism (https://github.com/TheThingsNetwork/lorawan-stack/issues/1450)
	configSource := c.ConfigSource
	if configSource == "" {
		switch {
		case c.Directory != "":
			if stat, err := os.Stat(c.Directory); err == nil && stat.IsDir() {
				configSource = "directory"
				break
			}
			fallthrough
		case c.URL != "":
			configSource = "url"
		case !c.Blob.IsZero():
			configSource = "blob"
		}
	}
	switch configSource {
	case "directory":
		return fetch.FromFilesystem(c.Directory), nil
	case "url":
		httpClient, err := httpClientProvider.HTTPClient(ctx, httpclient.WithCache(true))
		if err != nil {
			return nil, err
		}
		return fetch.FromHTTP(httpClient, c.URL)
	case "blob":
		b, err := c.BlobConfig.Bucket(ctx, c.Blob.Bucket, httpClientProvider)
		if err != nil {
			return nil, err
		}
		return fetch.FromBucket(ctx, b, c.Blob.Path), nil
	default:
		return nil, nil
	}
}

// SenderClientCA is the sender client CA configuration.
type SenderClientCA struct {