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| // Copyright 2019 Huawei Technologies Co.,Ltd. | ||
| // 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 | ||
| // | ||
| // http://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. | ||
|
|
||
| /** | ||
| * This sample demonstrates how to use custom http.Client to upload multiparts to OBS | ||
| * using the OBS SDK for Go. | ||
| */ | ||
| package examples | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "obs" | ||
| "strings" | ||
| ) | ||
|
|
||
| type SimpleCustumHttpClientSample struct { | ||
| bucketName string | ||
| objectKey string | ||
| location string | ||
| obsClient *obs.ObsClient | ||
| } | ||
| type OurCustomTransport struct { | ||
| Transport http.RoundTripper | ||
| } | ||
|
|
||
| func (t *OurCustomTransport) transport() http.RoundTripper { | ||
| if t.Transport != nil { | ||
| return t.Transport | ||
| } | ||
| return http.DefaultTransport | ||
| } | ||
| func (t *OurCustomTransport) RoundTrip(req *http.Request) (*http.Response, error) { | ||
| fmt.Println("do someting") | ||
| return t.transport().RoundTrip(req) | ||
| } | ||
|
|
||
| func newCustumHttpClientSample(ak, sk, endpoint, bucketName, objectKey, location string) *SimpleCustumHttpClientSample { | ||
|
|
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| t := &http.Client{ | ||
| Transport: &OurCustomTransport{}, | ||
| } | ||
| obsClient, err := obs.New(ak, sk, endpoint, obs.WithHttpClient(t)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return &SimpleCustumHttpClientSample{obsClient: obsClient, bucketName: bucketName, objectKey: objectKey, location: location} | ||
| } | ||
|
|
||
| func (sample SimpleCustumHttpClientSample) CreateBucket() { | ||
| input := &obs.CreateBucketInput{} | ||
| input.Bucket = sample.bucketName | ||
| input.Location = sample.location | ||
| _, err := sample.obsClient.CreateBucket(input) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| fmt.Printf("Create bucket:%s successfully!\n", sample.bucketName) | ||
| fmt.Println() | ||
| } | ||
|
|
||
| func (sample SimpleCustumHttpClientSample) InitiateMultipartUpload() string { | ||
| input := &obs.InitiateMultipartUploadInput{} | ||
| input.Bucket = sample.bucketName | ||
| input.Key = sample.objectKey | ||
| output, err := sample.obsClient.InitiateMultipartUpload(input) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return output.UploadId | ||
| } | ||
|
|
||
| func (sample SimpleCustumHttpClientSample) UploadPart(uploadId string) (string, int) { | ||
| input := &obs.UploadPartInput{} | ||
| input.Bucket = sample.bucketName | ||
| input.Key = sample.objectKey | ||
| input.UploadId = uploadId | ||
| input.PartNumber = 1 | ||
| input.Body = strings.NewReader("Hello OBS") | ||
| output, err := sample.obsClient.UploadPart(input) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return output.ETag, output.PartNumber | ||
| } | ||
|
|
||
| func (sample SimpleCustumHttpClientSample) CompleteMultipartUpload(uploadId, etag string, partNumber int) { | ||
| input := &obs.CompleteMultipartUploadInput{} | ||
| input.Bucket = sample.bucketName | ||
| input.Key = sample.objectKey | ||
| input.UploadId = uploadId | ||
| input.Parts = []obs.Part{ | ||
| obs.Part{PartNumber: partNumber, ETag: etag}, | ||
| } | ||
| _, err := sample.obsClient.CompleteMultipartUpload(input) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| fmt.Printf("Upload object %s successfully!\n", sample.objectKey) | ||
| } | ||
|
|
||
| func RunCustumHttpClientSample() { | ||
| const ( | ||
| endpoint = "https://your-endpoint" | ||
| ak = "*** Provide your Access Key ***" | ||
| sk = "*** Provide your Secret Key ***" | ||
| bucketName = "bucket-test" | ||
| objectKey = "object-test" | ||
| location = "yourbucketlocation" | ||
| ) | ||
|
|
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| sample := newCustumHttpClientSample(ak, sk, endpoint, bucketName, objectKey, location) | ||
|
|
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| fmt.Println("Create a new bucket for demo") | ||
| sample.CreateBucket() | ||
|
|
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| // Step 1: initiate multipart upload | ||
| fmt.Println("Step 1: initiate multipart upload") | ||
| uploadId := sample.InitiateMultipartUpload() | ||
|
|
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| // Step 2: upload a part | ||
| fmt.Println("Step 2: upload a part") | ||
|
|
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| etag, partNumber := sample.UploadPart(uploadId) | ||
|
|
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| // Step 3: complete multipart upload | ||
| fmt.Println("Step 3: complete multipart upload") | ||
| sample.CompleteMultipartUpload(uploadId, etag, partNumber) | ||
|
|
||
| } |
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