Global Computers

Payment Service

Secure payment journeys without exposing application trust to the browser

Let Business Applications own customer experience and business rules while Payment Service owns gateways, callbacks, verification, and authoritative results.

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The business challenge

Why this capability belongs in a shared service

Payment combines server trust, browser redirects, callbacks, retries, and financial state.

Independent implementations risk credential exposure, premature result trust, and duplicate or conflicting transactions.

Architectural responsibility

One clear role within the Enterprise Platform

01

Validate the Business Application through AIS

02

Persist trusted payment attempts

03

Issue opaque browser journey tokens

04

Redirect to the selected gateway

05

Validate and verify callbacks server-to-server

06

Maintain authoritative state

07

Return only to registered application URLs

08

Issue one-time collection codes

High-level journey

How the responsibility flows

  1. 01

    Server initiation

    The Business Application submits amount, reference, currency, and idempotency using an AIS token.

  2. 02

    Trusted attempt

    Payment Service derives client identity, stores the attempt, and returns an opaque journey URL.

  3. 03

    Browser redirect

    Only the short-lived journey token enters the browser.

  4. 04

    Gateway journey

    Payment Service constructs and controls the provider-specific interaction.

  5. 05

    Verification

    Callbacks, signatures, references, and provider status are verified.

  6. 06

    Secure collection

    The application redeems a one-time code server-to-server for the authoritative result.

Key capabilities

Designed for practical enterprise adoption

  • Server-to-server initiation
  • AIS audience and scope enforcement
  • Registered return URLs
  • Opaque single-use journey tokens
  • Gateway and PSP abstraction
  • Callback validation
  • Server-side verification
  • Idempotent state transitions
  • One-time result collection
  • End-to-end correlation

Security and governance

Trust at every boundary

  • Application credentials and AIS tokens never enter browser redirects
  • The browser cannot alter trusted amount, application, currency, or return URL
  • Journey and collection values are random, opaque, short-lived, and transaction-bound
  • Gateway browser returns are not trusted without verification
  • Financial data follows approved encryption, retention, reconciliation, and access policy

Business benefits

Value created through reuse and clear ownership

Safer redirects
Consistent gateway integration
Central payment truth
Reduced duplication
Easier provider change
Better reconciliation
Protection from duplicate processing

Flagship demonstration

See the service inside a connected platform journey

A Business Application initiates payment server-to-server. The user completes the gateway journey with no application credentials in the browser, and the verified result is collected once through an authenticated server call.

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Start the conversation

Keep payment trust on the server and complexity inside one service

Give every Business Application a consistent, secure, and verified payment result.

Request a Payment DemonstrationContact Global Computers