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upload.go
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upload.go
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package s3batchstore
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net/url"
"github.com/aws/aws-sdk-go-v2/service/s3"
"github.com/aws/aws-sdk-go-v2/service/s3/types"
)
func (c *client[K]) UploadFile(ctx context.Context, file *TempFile[K], withMetaFile bool) error {
body, err := file.readOnly()
if err != nil {
return fmt.Errorf("failed to get the readonly file: %w", err)
}
tagging := serializeTags(file.Tags())
_, err = c.s3Client.PutObject(ctx, &s3.PutObjectInput{
Bucket: &c.s3Bucket,
Key: &file.fileName,
Body: body,
Tagging: &tagging,
})
if err != nil {
return fmt.Errorf("failed to upload data file to s3: %w", err)
}
if withMetaFile {
// If requested, also upload the meta file:
metafileKey := file.MetaFileKey()
metafileBody, err := json.Marshal(file.indexes)
if err != nil {
return fmt.Errorf("failed to marshal meta body: %w", err)
}
_, err = c.s3Client.PutObject(ctx, &s3.PutObjectInput{
Bucket: &c.s3Bucket,
Key: &metafileKey,
Body: bytes.NewReader(metafileBody),
Tagging: &tagging,
})
if err != nil {
return fmt.Errorf("failed to upload meta file to s3: %w", err)
}
}
return nil
}
func (c *client[K]) DeleteFile(ctx context.Context, file *TempFile[K]) error {
metafileKey := file.MetaFileKey()
_, err := c.s3Client.DeleteObjects(ctx, &s3.DeleteObjectsInput{
Bucket: &c.s3Bucket,
Delete: &types.Delete{
Objects: []types.ObjectIdentifier{
{Key: &file.fileName},
{Key: &metafileKey},
},
},
})
if err != nil {
return fmt.Errorf("failed to delete files: %w", err)
}
return nil
}
// serializeTags converts the tags to url encoded string.
func serializeTags(tags map[string]string) string {
params := url.Values{}
for k, v := range tags {
params.Add(k, v)
}
return params.Encode()
}