Amazon S3 Create Bucket and Store an Object

arazzo: 1.0.1
info:
  title: Amazon S3 Create Bucket and Store an Object
  summary: Create a bucket, confirm it exists, upload an object, and read it back.
  description: >-
    The foundational Amazon S3 onboarding flow. The workflow creates a new
    bucket, verifies the bucket is reachable with a HEAD request, uploads a
    single object into it with a PUT, and then retrieves that same object with a
    GET to confirm the round trip succeeded. Every step spells out its request
    inline so the flow can be read and executed without opening the underlying
    OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: s3RestApi
  url: ../openapi/amazon-s3-rest-api-openapi.yml
  type: openapi
workflows:
- workflowId: create-bucket-and-store-object
  summary: Create a bucket then put and get an object inside it.
  description: >-
    Provisions a bucket in the requested Region, confirms access to it, writes a
    single object using the object's binary body, and reads the object back to
    verify it was stored.
  inputs:
    type: object
    required:
    - bucket
    - region
    - objectKey
    - objectBody
    properties:
      bucket:
        type: string
        description: The globally unique bucket name to create (3-63 lowercase characters).
      region:
        type: string
        description: The AWS Region (LocationConstraint) the bucket should live in, e.g. us-west-2.
      objectKey:
        type: string
        description: The key (path) the object will be stored under in the bucket.
      objectBody:
        type: string
        description: The raw object payload to upload.
      contentType:
        type: string
        description: The MIME type of the object body, e.g. text/plain.
  steps:
  - stepId: createBucket
    description: >-
      Create the bucket in the requested Region using a CreateBucketConfiguration
      body that carries the LocationConstraint.
    operationId: CreateBucket
    parameters:
    - name: Bucket
      in: path
      value: $inputs.bucket
    - name: x-amz-acl
      in: header
      value: private
    requestBody:
      contentType: application/xml
      payload:
        LocationConstraint: $inputs.region
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      location: $response.header.Location
  - stepId: confirmBucket
    description: >-
      Issue a HEAD request to confirm the bucket exists and is accessible before
      writing to it.
    operationId: HeadBucket
    parameters:
    - name: Bucket
      in: path
      value: $inputs.bucket
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      bucketRegion: $response.header.x-amz-bucket-region
  - stepId: putObject
    description: >-
      Upload the object's binary body to the bucket under the supplied key.
    operationId: PutObject
    parameters:
    - name: Bucket
      in: path
      value: $inputs.bucket
    - name: Key+
      in: path
      value: $inputs.objectKey
    - name: Content-Type
      in: header
      value: $inputs.contentType
    requestBody:
      contentType: application/octet-stream
      payload: $inputs.objectBody
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      etag: $response.header.ETag
      versionId: $response.header.x-amz-version-id
  - stepId: getObject
    description: >-
      Read the object back to confirm the upload landed and is retrievable.
    operationId: GetObject
    parameters:
    - name: Bucket
      in: path
      value: $inputs.bucket
    - name: Key+
      in: path
      value: $inputs.objectKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      retrievedEtag: $response.header.ETag
  outputs:
    bucketLocation: $steps.createBucket.outputs.location
    etag: $steps.putObject.outputs.etag
    retrievedEtag: $steps.getObject.outputs.retrievedEtag