github.com/SaurabhDubey-Groww/go-cloud@v0.0.0-20221124105541-b26c29285fd8/blob/memblob/example_test.go (about) 1 // Copyright 2018 The Go Cloud Development Kit Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package memblob_test 16 17 import ( 18 "context" 19 "fmt" 20 "log" 21 22 "gocloud.dev/blob" 23 "gocloud.dev/blob/memblob" 24 ) 25 26 func ExampleOpenBucket() { 27 // PRAGMA: This example is used on gocloud.dev; PRAGMA comments adjust how it is shown and can be ignored. 28 // PRAGMA: On gocloud.dev, hide lines until the next blank line. 29 ctx := context.Background() 30 31 // Create an in-memory bucket. 32 bucket := memblob.OpenBucket(nil) 33 defer bucket.Close() 34 35 // Now we can use bucket to read or write files to the bucket. 36 err := bucket.WriteAll(ctx, "my-key", []byte("hello world"), nil) 37 if err != nil { 38 log.Fatal(err) 39 } 40 data, err := bucket.ReadAll(ctx, "my-key") 41 if err != nil { 42 log.Fatal(err) 43 } 44 fmt.Println(string(data)) 45 46 // Output: 47 // hello world 48 } 49 50 func Example_openBucketFromURL() { 51 // blob.OpenBucket creates a *blob.Bucket from a URL. 52 b, err := blob.OpenBucket(context.Background(), "mem://") 53 if err != nil { 54 log.Fatal(err) 55 } 56 defer b.Close() 57 58 // Now we can use b to read or write files to the container. 59 ctx := context.Background() 60 err = b.WriteAll(ctx, "my-key", []byte("hello world"), nil) 61 if err != nil { 62 log.Fatal(err) 63 } 64 data, err := b.ReadAll(ctx, "my-key") 65 if err != nil { 66 log.Fatal(err) 67 } 68 fmt.Println(string(data)) 69 70 // Output: 71 // hello world 72 }