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activities.go
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activities.go
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package worker_specific_task_queues
import (
"bytes"
"context"
"crypto/sha256"
"io"
"os"
"time"
"go.temporal.io/sdk/activity"
)
// DownloadFile creates a file on the host with some test data.
func DownloadFile(ctx context.Context, url, path string) error {
logger := activity.GetLogger(ctx)
logger.Info("Downloading file", "url", url, "path", path)
time.Sleep(3 * time.Second)
return os.WriteFile(path, []byte("Hello, Gophers!"), 0666)
}
// ProcessFile is a stub function to processes a file.
func ProcessFile(ctx context.Context, path string) error {
logger := activity.GetLogger(ctx)
// Read from file
data, err := os.ReadFile(path)
if err != nil {
return err
}
// Calculate checksum
h := sha256.New()
if _, err = io.Copy(h, bytes.NewReader(data)); err != nil {
return err
}
checksum := h.Sum(nil)
logger.Info("Did some work", "path", path, "checksum", checksum)
time.Sleep(3 * time.Second)
return nil
}
// DeleteFile deletes path file on the host
func DeleteFile(ctx context.Context, path string) error {
logger := activity.GetLogger(ctx)
time.Sleep(3 * time.Second)
logger.Info("Removing file", "path", path)
return os.Remove(path)
}