Module command 

This module defines and manages various commands used for interacting with Amazon S3, encapsulating common operations such as creating buckets, uploading objects, and managing multipart uploads. It also provides utilities for calculating necessary metadata (like content length and SHA-256 hashes) required for secure and efficient communication with the S3 service.

Key Components

• HttpMethod Enum

  • Represents HTTP methods used in S3 operations, including GET, PUT, DELETE, POST, and HEAD.
  • Implements fmt::Display for easy conversion to string representations suitable for HTTP requests.

• Multipart Struct

  • Represents a part of a multipart upload, containing the part number and the associated upload ID.
  • Provides methods for constructing a new multipart part and generating a query string for the S3 API.

• Command Enum

  • The core of this module, encapsulating various S3 operations, such as:
    • Object management (GetObject, PutObject, DeleteObject, etc.)
    • Bucket management (CreateBucket, DeleteBucket, etc.)
    • Multipart upload management (InitiateMultipartUpload, UploadPart, CompleteMultipartUpload, etc.)
  • For each command, you can determine the associated HTTP method using http_verb() and calculate the content length or content type using content_length() and content_type() respectively.
  • The sha256() method computes the SHA-256 hash of the request payload, a critical part of S3’s security features.

Structs

Multipart

Enums

Command

HttpMethod