/
blob.go
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/
blob.go
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// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Original source: github.com/micro/go-micro/v3/store/blob.go
package store
import (
"errors"
"io"
)
var (
// ErrMissingKey is returned when no key is passed to blob store Read / Write
ErrMissingKey = errors.New("missing key")
)
// BlobStore is an interface for reading / writing blobs
type BlobStore interface {
Read(key string, opts ...BlobOption) (io.Reader, error)
Write(key string, blob io.Reader, opts ...BlobOption) error
Delete(key string, opts ...BlobOption) error
}
// BlobOptions contains options to use when interacting with the store
type BlobOptions struct {
// Namespace to from
Namespace string
Public bool
ContentType string
}
// BlobOption sets one or more BlobOptions
type BlobOption func(o *BlobOptions)
// BlobNamespace sets the Namespace option
func BlobNamespace(ns string) BlobOption {
return func(o *BlobOptions) {
o.Namespace = ns
}
}
// BlobNamespace sets the Public option
func BlobPublic(p bool) BlobOption {
return func(o *BlobOptions) {
o.Public = p
}
}
// BlobNamespace sets the Public option
func BlobContentType(contentType string) BlobOption {
return func(o *BlobOptions) {
o.ContentType = contentType
}
}