45 lines
813 B
Go
45 lines
813 B
Go
package main
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import (
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"fmt"
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"io"
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"log"
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"net/http"
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"os"
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jsoniter "github.com/json-iterator/go"
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)
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func readJSONFile(filename string, dst any) error {
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log.Printf("Reading %s\n", filename)
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file, err := os.Open(filename)
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if err != nil {
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return err
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}
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defer file.Close()
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return jsoniter.ConfigFastest.NewDecoder(file).Decode(dst)
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}
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func downloadFile(url, filename string) error {
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log.Printf("%s not found, downloading from %s \n", filename, url)
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response, err := http.Get(url)
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if err != nil {
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return 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 fmt.Errorf("request failed with status code: %d", response.StatusCode)
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}
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f, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer f.Close()
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_, err = io.Copy(f, response.Body)
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return err
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}
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