egutierrez
53200cbc0d
Nuevas funciones Go con tests en tres dominios: - core: parse_cron_expr, next_cron_time, join_by_key, validate_struct_fields + tipo CronSchedule - datascience: pivot (tabla dinámica), diff_entities (comparación de entidades) - infra: http_get_json, http_post_json, http_download_file, cache_to_sqlite, cron_ticker Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package infra
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"time"
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)
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// HttpGetJSON realiza un GET request a url y parsea la respuesta como JSON.
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// Agrega Accept: application/json automaticamente. Retorna error si status >= 400
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// incluyendo el status code y los primeros 200 bytes del body.
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func HttpGetJSON(url string, headers map[string]string, timeout time.Duration) (map[string]any, error) {
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client := &http.Client{Timeout: timeout}
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req, err := http.NewRequest(http.MethodGet, url, nil)
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if err != nil {
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return nil, fmt.Errorf("http_get_json: build request: %w", err)
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}
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req.Header.Set("Accept", "application/json")
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for k, v := range headers {
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req.Header.Set(k, v)
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}
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resp, err := client.Do(req)
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if err != nil {
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return nil, fmt.Errorf("http_get_json: %w", err)
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, fmt.Errorf("http_get_json: read body: %w", err)
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}
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if resp.StatusCode >= 400 {
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preview := body
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if len(preview) > 200 {
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preview = preview[:200]
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}
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shortURL := url
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if len(shortURL) > 100 {
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shortURL = shortURL[:100]
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}
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return nil, fmt.Errorf("http_get_json: HTTP %d at %q — %s", resp.StatusCode, shortURL, preview)
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}
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var result map[string]any
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if err := json.Unmarshal(body, &result); err != nil {
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return nil, fmt.Errorf("http_get_json: parse JSON: %w", err)
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}
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return result, nil
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}
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