github.com/minio/minio-go/v6@v6.0.57/constants.go (about) 1 /* 2 * MinIO Go Library for Amazon S3 Compatible Cloud Storage 3 * Copyright 2015-2017 MinIO, Inc. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package minio 19 20 /// Multipart upload defaults. 21 22 // absMinPartSize - absolute minimum part size (5 MiB) below which 23 // a part in a multipart upload may not be uploaded. 24 const absMinPartSize = 1024 * 1024 * 5 25 26 // minPartSize - minimum part size 128MiB per object after which 27 // putObject behaves internally as multipart. 28 const minPartSize = 1024 * 1024 * 128 29 30 // maxPartsCount - maximum number of parts for a single multipart session. 31 const maxPartsCount = 10000 32 33 // maxPartSize - maximum part size 5GiB for a single multipart upload 34 // operation. 35 const maxPartSize = 1024 * 1024 * 1024 * 5 36 37 // maxSinglePutObjectSize - maximum size 5GiB of object per PUT 38 // operation. 39 const maxSinglePutObjectSize = 1024 * 1024 * 1024 * 5 40 41 // maxMultipartPutObjectSize - maximum size 5TiB of object for 42 // Multipart operation. 43 const maxMultipartPutObjectSize = 1024 * 1024 * 1024 * 1024 * 5 44 45 // unsignedPayload - value to be set to X-Amz-Content-Sha256 header when 46 // we don't want to sign the request payload 47 const unsignedPayload = "UNSIGNED-PAYLOAD" 48 49 // Total number of parallel workers used for multipart operation. 50 const totalWorkers = 4 51 52 // Signature related constants. 53 const ( 54 signV4Algorithm = "AWS4-HMAC-SHA256" 55 iso8601DateFormat = "20060102T150405Z" 56 ) 57 58 const ( 59 // Storage class header. 60 amzStorageClass = "X-Amz-Storage-Class" 61 62 // Website redirect location header 63 amzWebsiteRedirectLocation = "X-Amz-Website-Redirect-Location" 64 65 // Object Tagging headers 66 amzTaggingHeader = "X-Amz-Tagging" 67 amzTaggingHeaderDirective = "X-Amz-Tagging-Directive" 68 69 // Object legal hold header 70 amzLegalHoldHeader = "X-Amz-Object-Lock-Legal-Hold" 71 72 // Object retention header 73 amzLockMode = "X-Amz-Object-Lock-Mode" 74 amzLockRetainUntil = "X-Amz-Object-Lock-Retain-Until-Date" 75 amzBypassGovernance = "X-Amz-Bypass-Governance-Retention" 76 )