Rhythm 2.0 Specifications

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SVC-COM-ORD-checkoutCheckout Service Module

Markdown

SVC-COM-ORD-checkout

Checkout Service Module

Markdown
  • DocumentDraft
  • ImplementationObserved

KindService contractProduct areaCommerceModuleCustomer purchases, purchased benefits and vendor stockRevision1

Read atservices-commerce c8b66a98macroservice-libraries 54536a44react-console baf6dae3

Checkout Service Module ​

What This Service Is For ​

Checkout holds purchases in progress and exposes their selection, assessment and placement operations. The composer uses those operations for staff purchases; portal calls are restricted to the buyer's authority. This module also hosts the shared background schedule.

Boundary ​

The module owns carts, selections and their trail. Catalog supplies policies, stores, prices and offers; CRM supplies purchasing parties; Platform supplies eligibility. Placement is hosted here but writes through the owners of sale, resource, redemption and delivery records in one shared transaction.

Operations in Words ​

Cart operations create, edit, reserve, assess and abandon selections. Staff can switch policy; callers can choose shipping and offered deposit plans. Code changes recalculate the preview, while placement requires its own permission and request key. No operation declares a Submissions publication.

Events and Jobs ​

Cart events are local history rather than externally published messages. The minute schedule runs expiry, reservation, payment-window, register, financial and grant work in order, followed by ledger purge during its daily window.

Consistency Guarantees ​

Mutation and history writes share a commit, including releases through application database functions. Preview is a saved assessment rather than a lasting price guarantee. Scheduled expiry depends on the pass reaching the record without a propagated earlier failure.

Owns
DOM-COM-ORD-001
Repository
services-commerce

Controls

34 controls apply, from the corpus control catalogue.

TC-IAM-001 TC-IAM-002 TC-IAM-004 TC-IAM-005 TC-AZ-001 TC-AZ-002 TC-AZ-003 TC-AZ-004 TC-AZ-006 TC-TEN-001 TC-TEN-002 TC-TEN-003 TC-TEN-004 TC-CRY-001 TC-CRY-002 TC-CRY-003 TC-DAT-001 TC-DAT-002 TC-DAT-003 TC-DAT-004 TC-LOG-004 TC-LOG-005 TC-AVL-002 TC-AVL-003 TC-AVL-005 TC-MON-001 TC-MON-003 TC-MON-004 TC-PI-001 TC-PI-002 TC-PI-003 TC-PI-005 TC-PRV-001 TC-PRV-002

Does Not Own

  • Orders retains sale, purchased-line and reservation ownership despite checkout hosting placement.
  • Catalog retains policy, store, purchasing configuration, pricing, offers and interim tax ownership.
  • Fulfilment retains shipping configuration, rating and delivery obligations.
  • CRM retains parties and addresses; Platform retains eligibility evaluation.

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