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refactor
composeObject api to ts (minio#1291)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| /* | ||
| * MinIO Javascript Library for Amazon S3 Compatible Cloud Storage, (C) 2021 MinIO, Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
||
| // Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname and my-objectname | ||
| // are dummy values, please replace them with original values. | ||
| import fs from 'node:fs' | ||
| import os from 'node:os' | ||
|
|
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| import * as Minio from 'minio' | ||
| import splitFile from 'split-file' | ||
|
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| const s3Client = new Minio.Client({ | ||
| endPoint: 's3.amazonaws.com', | ||
| accessKey: 'YOUR-ACCESSKEYID', | ||
| secretKey: 'YOUR-SECRETACCESSKEY', | ||
| }) | ||
|
|
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| const bucketName = 'my-bucketname' | ||
| const composedObjName = 'my-objectname' | ||
|
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| const oneMB = 1024 * 1024 | ||
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| // Create a bucket prior to running: mc mb local/source-bucket | ||
| const sampleRunComposeObject = async () => { | ||
| const tmpDir = os.tmpdir() | ||
|
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| // generate 100 MB buffer and write to a file. | ||
| const local100mbFileToBeSplitAndComposed = Buffer.alloc(100 * oneMB, 0) | ||
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| const tmpSubDir = `${tmpDir}/compose` | ||
| const fileToSplit = `${tmpSubDir}/${composedObjName}` | ||
| const partObjNameList = [] | ||
|
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| fs.mkdir(tmpSubDir, { recursive: true }, function (err) { | ||
| if (err) { | ||
| console.log(err) | ||
| } else { | ||
| console.log('New Temp directory successfully created.') | ||
| } | ||
| }) | ||
|
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| try { | ||
| fs.writeFileSync(fileToSplit, local100mbFileToBeSplitAndComposed) | ||
| console.log('Written 100 MB File ') | ||
| // 100 MB split into 26 MB part size. ( just to test unequal parts ). But change as required. | ||
|
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| const names = await splitFile.splitFileBySize(fileToSplit, 26 * oneMB) | ||
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| console.log('Split and write 100 MB File(s) ', names) | ||
| const putPartRequests = names.map((partFileName) => { | ||
| const partObjName = partFileName.slice((tmpSubDir + '/').length) | ||
| partObjNameList.push(partObjName) | ||
| return s3Client.fPutObject(bucketName, partObjName, partFileName, {}) | ||
| }) | ||
| await Promise.all(putPartRequests) | ||
|
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| console.log('Uploaded part Files: ', names) | ||
| const sourcePartObjList = partObjNameList.map((partObjName) => { | ||
| return new Minio.CopySourceOptions({ | ||
| Bucket: bucketName, | ||
| Object: partObjName, | ||
| }) | ||
| }) | ||
|
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| const destObjConfig = new Minio.CopyDestinationOptions({ | ||
| Bucket: bucketName, | ||
| Object: composedObjName, | ||
| }) | ||
|
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| try { | ||
| const result = await s3Client.composeObject(destObjConfig, sourcePartObjList) | ||
| console.log(result) | ||
| console.log('Composed to a single file: ', composedObjName) | ||
| } catch (err) { | ||
| console.log('Error in compose object : ', err.message) | ||
| } finally { | ||
| console.log('Remove source parts: ') | ||
| partObjNameList.map((partObjName) => { | ||
| return s3Client.removeObject(bucketName, partObjName) | ||
| }) | ||
| // Clean up generated parts locally | ||
| fs.rmSync(tmpSubDir, { recursive: true, force: true }) | ||
| console.log('Clean up temp parts directory : ') | ||
| } | ||
| } catch (e) { | ||
| console.log('Error Creating local files ', e) | ||
| } | ||
| } | ||
|
|
||
| sampleRunComposeObject() |
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