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Amazon S3 Multipart Upload API

Operations for multipart upload of large objects

Amazon S3 Multipart Upload API is one of 12 APIs that Amazon S3 publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 2 JSON Schema definitions.

Tagged areas include Multipart Upload. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a JSON-LD context, pricing, a getting-started guide, authentication docs, and 2 JSON Schemas.

This API exposes 4 operations across 3 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 2006-03-01.

Requests are made against 2 base URLs: https://s3.{region}.amazonaws.com, https://{bucket}.s3.{region}.amazonaws.com.

4 operations 3 paths 4 schemas 1 DELETE2 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2006-03-01
Base URL
https://s3.amazonaws.com
Authentication
API Key
License
Terms of Service
Resource Areas
1

Authentication & Security 1

Amazon S3 Multipart Upload API declares 1 security scheme for authenticating requests. An API key is passed in the header as Authorization (sigv4). By default, every request must be authenticated.

  • sigv4 — AWS Signature Version 4 authentication. All S3 REST API requests must be signed using AWS Signature Version 4. The signature includes the request date, region,…

Paths & Operations 4

Across 3 paths, the API surfaces 4 operations — 1 DELETE, 2 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Multipart Upload 4

Operations for multipart upload of large objects

POST
/{Bucket}/{Key+}?uploads
Amazon S3 Create Multipart Upload
CreateMultipartUpload 16 params → 200403
PUT
/{Bucket}/{Key+}?partNumber={partNumber}&uploadId={uploadId}
Amazon S3 Upload Part
UploadPart 8 params body → 200403
POST
/{Bucket}/{Key+}?uploadId={uploadId}
Amazon S3 Complete Multipart Upload
CompleteMultipartUpload 9 params body → 200403
DELETE
/{Bucket}/{Key+}?uploadId={uploadId}
Amazon S3 Abort Multipart Upload
AbortMultipartUpload 5 params → 204403404

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are CompleteMultipartUploadResult (8 properties), Error (5 properties), InitiateMultipartUploadResult (3 properties), CompleteMultipartUpload (1 property). Each schema is shown below with its type and property counts.

Error
object
Container for all error elements.
5 properties
InitiateMultipartUploadResult
object
Container for response to initiate multipart upload.
3 properties
CompleteMultipartUpload
object
The container for the completed multipart upload request.
1 property
CompleteMultipartUploadResult
object
The container for the completed multipart upload response.
8 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

amazon-s3-multipart-upload-api-openapi.yml Raw ↑

Other APIs Amazon S3 publishes across the network.

Amazon S3 Access Control API
Amazon S3 Access Grants API
Amazon S3 Access Points API
Amazon S3 Batch Operations API
Amazon S3 Bucket Configuration API
Amazon S3 Buckets API
Amazon S3 Multi-Region Access Points API
Amazon S3 Objects API
Amazon S3 Public Access Block API
Amazon S3 Storage Lens API
Amazon S3 Tagging API
Where this information came from

This is an independent, third-party profile of Amazon S3 Multipart Upload API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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