Overview of Object Upload Overview
Uploading an object is to add an object to a bucket. This operation requires the write permission. Objects uploaded by users are stored in buckets. Only the users who have the write permission can upload objects to buckets. The name of each object in a bucket must be unique.
OBS provides the following uploading modes based on the size of the object that you want to upload:
- Uploading an object in a single operation: You can upload an object not more than 5 GB by a PUT or POST operation.
- Multipart upload: You can upload an object up to 48.8 TB using multipart upload APIs.
Multipart upload APIs are used to improve the experience of uploading large objects. You can upload objects in multiple parts. These parts can be concurrently and independently uploaded in any sequence. Multipart upload suits objects smaller than 48.8 TB. You are advised to upload objects that are larger than 100 MB in multiple parts.
For more information about multipart upload, see Multipart Upload. This section mainly describes uploading an object in a single operation.
After creating a bucket in OBS, you can upload objects to the bucket using a PUT or POST operation. A POST operation is mainly used for web browser–based upload.
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