update to reflect changes in go-writer v0.2.0

go.mod

@@ -3,6 +3,6 @@ module github.com/whosonfirst/go-writer-blob
 go 1.12
 
 require (
-	github.com/whosonfirst/go-writer v0.1.0
+	github.com/whosonfirst/go-writer v0.2.0
 	gocloud.dev v0.19.0
 )

go.sum

@@ -124,6 +124,8 @@ github.com/whosonfirst/go-writer v0.0.2 h1:ZWPMCUyQS8Khvyhz34iAsEhvRFFWo5JvraQOU
 github.com/whosonfirst/go-writer v0.0.2/go.mod h1:icuZIaxlsSAb8TnAzZFYt2G4ObYeI3vBmcNRimB92sY=
 github.com/whosonfirst/go-writer v0.1.0 h1:TAb2++rpGcxlqvtCMMTuBzb3PXFQzGobpFB62WUPfQU=
 github.com/whosonfirst/go-writer v0.1.0/go.mod h1:NGPaud/M3Q6IKLDj2X0PbKKpfWRF9Zneups/BMCG0+0=
+github.com/whosonfirst/go-writer v0.2.0 h1:3RCym51cVwbhTpAZ7XKoWsXcodbEbKGDWYUpHoXyEOQ=
+github.com/whosonfirst/go-writer v0.2.0/go.mod h1:NGPaud/M3Q6IKLDj2X0PbKKpfWRF9Zneups/BMCG0+0=
 go.opencensus.io v0.15.0/go.mod h1:UffZAU+4sDEINUGP/B7UfBBkq4fqLu9zXAX7ke6CHW0=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=

writer.go

@@ -7,55 +7,40 @@ import (
 	"io"
 )
 
+type BlobWriterOptionsKey string
+
+type BlobWriter struct {
+	wof_writer.Writer
+	bucket *blob.Bucket
+}
+
 func init() {
 
 	ctx := context.Background()
 
 	for _, scheme := range blob.DefaultURLMux().BucketSchemes() {
 
-		err := wof_writer.RegisterWriter(ctx, scheme, initializeBlobWriter)
+		err := wof_writer.RegisterWriter(ctx, scheme, NewBlobWriter)
 
 		if err != nil {
 			panic(err)
 		}
 	}
 }
 
-func initializeBlobWriter(ctx context.Context, uri string) (wof_writer.Writer, error) {
+func NewBlobWriter(ctx context.Context, uri string) (wof_writer.Writer, error) {
 
-	wr := NewBlobWriter()
-	err := wr.Open(ctx, uri)
+	bucket, err := blob.OpenBucket(ctx, uri)
 
 	if err != nil {
 		return nil, err
 	}
 
-	return wr, nil
-}
-
-type BlobWriterOptionsKey string
-
-type BlobWriter struct {
-	wof_writer.Writer
-	bucket *blob.Bucket
-}
-
-func NewBlobWriter() wof_writer.Writer {
-
-	wr := BlobWriter{}
-	return &wr
-}
-
-func (wr *BlobWriter) Open(ctx context.Context, uri string) error {
-
-	bucket, err := blob.OpenBucket(ctx, uri)
-
-	if err != nil {
-		return err
+	wr := &BlobWriter{
+		bucket: bucket,
 	}
 
-	wr.bucket = bucket
-	return nil
+	return wr, nil
 }
 
 func (wr *BlobWriter) Write(ctx context.Context, uri string, fh io.ReadCloser) error {