From e55f8d731cb4343f4be9361525221d8752fa75a6 Mon Sep 17 00:00:00 2001
From: Harshavardhana <harsha@minio.io>
Date: Fri, 26 Nov 2021 02:20:32 -0800
Subject: [PATCH] support GetObject() on specific partNumber (#1591)

---
 api-get-object.go  | 4 ++++
 api-get-options.go | 1 +
 2 files changed, 5 insertions(+)

diff --git a/api-get-object.go b/api-get-object.go
index b9b960250..2ce4b260f 100644
--- a/api-get-object.go
+++ b/api-get-object.go
@@ -24,6 +24,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"strconv"
 	"sync"
 
 	"github.com/minio/minio-go/v7/pkg/s3utils"
@@ -652,6 +653,9 @@ func (c *Client) getObject(ctx context.Context, bucketName, objectName string, o
 	if opts.VersionID != "" {
 		urlValues.Set("versionId", opts.VersionID)
 	}
+	if opts.PartNumber > 0 {
+		urlValues.Set("partNumber", strconv.Itoa(opts.PartNumber))
+	}
 
 	// Execute GET on objectName.
 	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
diff --git a/api-get-options.go b/api-get-options.go
index 0be858d19..184ef9f86 100644
--- a/api-get-options.go
+++ b/api-get-options.go
@@ -37,6 +37,7 @@ type GetObjectOptions struct {
 	headers              map[string]string
 	ServerSideEncryption encrypt.ServerSide
 	VersionID            string
+	PartNumber           int
 	// To be not used by external applications
 	Internal AdvancedGetOptions
 }