Web3 Gaming Economy

What you will build.

A fictional player purchases item DEMO-ITEM-01. The payment is confirmed but the game inventory grant may be missing or already applied. Trace payment, asset ownership and game inventory as related but independent records.

Your working record

Create a private worksheet with columns for the source reference, observed state, responsible system, observation time, expected result and unresolved issue. Use the same fictional case throughout the steps; do not paste live personal or financial records into this exercise.

1. 01Define the item and its utility
2. 02Wait for authoritative payment
3. 03Handle repeat delivery and disputed ownership
4. 04Reconcile a paid-but-undelivered order

Run the example before changing it.

Inspect the baseline record below. Download and read the complete JavaScript file before running it. It uses only Node’s built-in test and assertion modules; there is no package installation, account connection or secret to configure.

{
  "paymentConfirmed": true,
  "inventoryGranted": false,
  "ownershipDisputed": false
}

Save it as web3-gaming-economy.mjs. Open a terminal in that folder and run:

node --version
node --test web3-gaming-economy.mjs

Expected result: four passing tests and zero failures. These tests verify the teaching classifier only. They do not verify a production integration, security boundary or financial outcome.

// Hybrid-Chain offline teaching model: web3-gaming-economy
// Fictional fields/states; NOT an API client, authorization system or production implementation.
// No network calls, credentials, payments or file writes. Review before running.
// Requires Node.js 22+. Run: node --test web3-gaming-economy.mjs
import test from 'node:test';
import assert from 'node:assert/strict';

export function inspect(record) {
  if (!record.paymentConfirmed) return 'WAIT_FOR_PAYMENT';
  if (record.ownershipDisputed) return 'OWNERSHIP_REVIEW_REQUIRED';
  if (record.inventoryGranted) return 'ALREADY_GRANTED';
  return 'READY_FOR_INVENTORY_REVIEW';
}

const baseline = {
  "paymentConfirmed": true,
  "inventoryGranted": false,
  "ownershipDisputed": false
};
const cases = [
  {
    "name": "paid order needs inventory review",
    "patch": {},
    "expected": "READY_FOR_INVENTORY_REVIEW"
  },
  {
    "name": "payment unresolved",
    "patch": {
      "paymentConfirmed": false
    },
    "expected": "WAIT_FOR_PAYMENT"
  },
  {
    "name": "duplicate delivery",
    "patch": {
      "inventoryGranted": true
    },
    "expected": "ALREADY_GRANTED"
  },
  {
    "name": "ownership dispute",
    "patch": {
      "ownershipDisputed": true
    },
    "expected": "OWNERSHIP_REVIEW_REQUIRED"
  }
];

for (const example of cases) {
  test(example.name, () => {
    assert.equal(inspect({...baseline, ...example.patch}), example.expected);
  });
}

Know what the tests demonstrate

paid order needs inventory review

READY_FOR_INVENTORY_REVIEW

payment unresolved

WAIT_FOR_PAYMENT

duplicate delivery

ALREADY_GRANTED

ownership dispute

OWNERSHIP_REVIEW_REQUIRED

Now change one fixture at a time. If you change a case’s input without changing its expected result, the test should fail. Read the actual-versus-expected difference and use the walkthrough to decide whether your rule or your expectation needs correcting. Keep an unchanged copy for comparison.

Work through the case, step by step.

1. 01

   Define the item and its utility

   Do this

   1. Describe what DEMO-ITEM-01 does in this game and who can change that behavior.
   2. Record supply, transfer rules and inventory-delivery owner separately from the asset identifier.
   3. Avoid suggesting cross-game compatibility merely because ownership is represented digitally.

   Expected result

   The entitlement has a clear game-specific meaning rather than an assumed universal utility.

   If your result is different

   If the game cannot resolve the item's definition, hold delivery for review instead of creating an arbitrary inventory entry.

2. 02

   Wait for authoritative payment

   Do this

   1. Run the baseline with paymentConfirmed=true.
   2. Change it to false and expect WAIT_FOR_PAYMENT.
   3. Record the actual payment reference and keep browser return/notification receipt separate from its authoritative state.

   Expected result

   The game does not grant a purchased item on an unverified checkout signal.

   If your result is different

   If the provider status is unavailable, keep the order unresolved; do not both refund and grant while guessing what happened.

3. 03

   Handle repeat delivery and disputed ownership

   Do this

   1. Set inventoryGranted=true and expect ALREADY_GRANTED.
   2. Restore the baseline, set ownershipDisputed=true and expect OWNERSHIP_REVIEW_REQUIRED.
   3. Specify a durable order-to-grant key and a support view showing both asset and inventory references.

   Expected result

   Repeated messages and ownership disagreements have distinct explanations and responsible owners.

   If your result is different

   A local flag is not atomic inventory delivery. Test the real game service under concurrent retries.

4. 04

   Reconcile a paid-but-undelivered order

   Do this

   1. Keep paymentConfirmed=true and inventoryGranted=false; the model returns READY_FOR_INVENTORY_REVIEW, not delivered.
   2. Assign the failed grant to the game operator and preserve the original payment reference.
   3. Add anti-cheat, player-safety and rollback requirements to the studio backlog rather than treating asset evidence as those controls.

   Expected result

   You finish with a traceable support case and a narrow implementation plan for delivery and reconciliation.

   If your result is different

   Do not mint or charge again to hide an inventory mismatch. Reconcile the existing order first.

Review what you produced.

Save the worksheet, unmodified test output, one deliberately failing case and the explanation of its fix. A useful result includes an unresolved item with an owner; it is not just a screenshot of four green tests.

Map the model to actual systems.

The studio owns the game server, entitlement utility, player safety, fraud response, inventory synchronization, and any marketplace rules.

For each worksheet field, name the owning system, exact current operation, permission and error behavior. Put “not available” next to any missing operation and assign a dependency owner. Do not substitute the teaching classifier for that missing integration.

Open the current API reference and inspect each operation’s request, response, scope and implementation status. Code examples on this page are local models only; they do not call those operations.

Before a real deployment, the responsible organization must obtain appropriate legal, compliance and security review. The tutorial does not determine licensing, eligibility, entitlement enforceability or financial suitability.

Take the next technical step.

Use your worksheet and failing-case notes in the next walkthrough. Keep the same reference trail so you can see which assumptions become actual observations—and which remain dependencies.

Need help with access or an unavailable integration? Contact the team with a redacted error and the guide step. Never send credentials or private records.