/
example_test.go
99 lines (87 loc) · 3.25 KB
/
example_test.go
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// Copyright 2018 The Go Cloud Development Kit Authors
//
// 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.
package azureblob_test
import (
"context"
"log"
"gocloud.dev/blob"
"gocloud.dev/blob/azureblob"
)
func ExampleOpenBucket() {
// PRAGMA: This example is used on gocloud.dev; PRAGMA comments adjust how it is shown and can be ignored.
// PRAGMA: On gocloud.dev, hide lines until the next blank line.
ctx := context.Background()
const (
// The storage container to access.
containerName = "my-container"
)
// Construct the service URL.
// There are many forms of service URLs, see ServiceURLOptions.
opts := azureblob.NewDefaultServiceURLOptions()
serviceURL, err := azureblob.NewServiceURL(opts)
if err != nil {
log.Fatal(err)
}
// There are many ways to authenticate to Azure.
// This approach uses environment variables as described in azureblob package
// documentation.
// For example, to use shared key authentication, you would set
// AZURE_STORAGE_ACCOUNT and AZURE_STORAGE_KEY.
// To use a SAS token, you would set AZURE_STORAGE_ACCOUNT and AZURE_STORAGE_SAS_TOKEN.
// You can also construct a client using the azblob constructors directly, like
// azblob.NewServiceClientWithSharedKey.
client, err := azureblob.NewDefaultServiceClient(serviceURL)
if err != nil {
log.Fatal(err)
}
// Create a *blob.Bucket.
b, err := azureblob.OpenBucket(ctx, client, containerName, nil)
if err != nil {
log.Fatal(err)
}
defer b.Close()
// Now we can use b to read or write files to the container.
data, err := b.ReadAll(ctx, "my-key")
if err != nil {
log.Fatal(err)
}
_ = data
}
func Example_openBucketFromURL() {
// PRAGMA: This example is used on gocloud.dev; PRAGMA comments adjust how it is shown and can be ignored.
// PRAGMA: On gocloud.dev, add a blank import: _ "gocloud.dev/blob/azureblob"
// PRAGMA: On gocloud.dev, hide lines until the next blank line.
ctx := context.Background()
// blob.OpenBucket creates a *blob.Bucket from a URL.
// This URL will open the container "my-container" using default
// credentials found in environment variables as documented in
// the package.
// Assuming AZURE_STORAGE_ACCOUNT is set to "myaccount",
// and other options aren't set, the service URL will look like:
// "https://myaccount.blob.core.windows.net/my-container".
bucket, err := blob.OpenBucket(ctx, "azblob://my-container")
if err != nil {
log.Fatal(err)
}
defer bucket.Close()
// Another example, against a local emulator.
// Assuming AZURE_STORAGE_ACCOUNT is set to "myaccount",
// the service URL will look like:
// "http://localhost:10001/myaccount/my-container".
localbucket, err := blob.OpenBucket(ctx, "azblob://my-container?protocol=http&domain=localhost:10001")
if err != nil {
log.Fatal(err)
}
defer localbucket.Close()
}