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75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package aws
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import (
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"context"
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"fmt"
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"io"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/credentials"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/s3/s3manager"
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)
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type uploader interface {
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UploadWithContext(ctx aws.Context, input *s3manager.UploadInput, opts ...func(*s3manager.Uploader)) (*s3manager.UploadOutput, error)
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}
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// S3Client is a client for uploading data to S3.
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type S3Client struct {
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region string
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accessKey string
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secretKey string
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bucket string
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key string
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uploader uploader // for testing via dependency injection
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}
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// NewS3Client returns an instance of an S3Client.
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func NewS3Client(region, accessKey, secretKey, bucket, key string) *S3Client {
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return &S3Client{
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region: region,
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accessKey: accessKey,
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secretKey: secretKey,
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bucket: bucket,
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key: key,
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}
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}
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// String returns a string representation of the S3Client.
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func (s *S3Client) String() string {
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return fmt.Sprintf("s3://%s/%s", s.bucket, s.key)
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}
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// Upload uploads data to S3.
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func (s *S3Client) Upload(ctx context.Context, reader io.Reader) error {
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sess, err := session.NewSession(&aws.Config{
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Region: aws.String(s.region),
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Credentials: credentials.NewStaticCredentials(s.accessKey, s.secretKey, ""),
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})
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if err != nil {
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return fmt.Errorf("failed to create S3 session: %w", err)
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}
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// If an uploader was not provided, use a real S3 uploader.
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var uploader uploader
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if s.uploader == nil {
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uploader = s3manager.NewUploader(sess)
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} else {
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uploader = s.uploader
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}
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_, err = uploader.UploadWithContext(ctx, &s3manager.UploadInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(s.key),
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Body: reader,
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})
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if err != nil {
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return fmt.Errorf("failed to upload to S3: %w", err)
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}
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return nil
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}
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