bakeSale-permit.json

{
  "consume": {
    "board": true,
    "chainStorage": true,
    "zoe": true
  },
  "produce": {
    "bakeSaleKit": true
  },
  "instance": {
    "produce": {
      "bakeSaleAgent": true
    }
  }
}

chainStorage-proposal.js

/**
 * @file
 *
 * This is a script for use with swingset.CoreEval.
 *
 * It's a script, not a module, so we can't use `import`.
 * But E, Far, etc. are in scope, provided by the
 * `new Compartment(globals)` call in
 * `bridgeCoreEval()` in packages/vats/src/core/chain-behaviors.js
 */
// @ts-check
// uncomment the following line to typecheck, for example, in vs-code.
// import { E } from '@endo/far';

const contractInfo = {
  storagePath: 'bakeSales',
  instanceName: 'bakeSaleAgent',

  // see discussion of publish-bundle and bundleID
  // from Dec 14 office hours
  // https://github.com/Agoric/agoric-sdk/issues/6454#issuecomment-1351949397
  bundleID:
    'b1-392ae6656ae68bcfd8bd77a2a100ad4076e8b888808274796cce4c148fcb99d1f8b6c2f946bd6bc3e3c26c54c671c788890f3e9780464354fb2d30916e7be896',
};

const fail = reason => {
  throw reason;
};

/**
 * Execute a proposal to start a contract that publishes bake sales.
 *
 * See also:
 * BLDer DAO governance using arbitrary code injection: swingset.CoreEval
 * https://community.agoric.com/t/blder-dao-governance-using-arbitrary-code-injection-swingset-coreeval/99
 *
 * @param {BootstrapPowers} powers see the `behavior(powers)` call
 *   in `bridgeCoreEval()`
 */
const executeProposal = async powers => {
  // Destructure the powers that we use.
  // See also bakeSale-permit.json
  const {
    consume: { board, chainStorage, zoe },
    // @ts-expect-error bakeSaleKit isn't declared in vats/src/core/types.js
    produce: { bakeSaleKit },
    instance: {
      // @ts-expect-error bakeSaleKit isn't declared in vats/src/core/types.js
      produce: { [contractInfo.instanceName]: produceInstance },
    },
  } = powers;

  const chainStorageSettled =
    (await chainStorage) || fail(Error('no chainStorage - sim chain?'));

  const storageNode = E(chainStorageSettled).makeChildNode(
    contractInfo.storagePath,
  );
  const marshaller = await E(board).getReadonlyMarshaller();

  const privateArgs = harden({ storageNode, marshaller });

  const installation = await E(zoe).installBundleID(contractInfo.bundleID);
  const noIssuers = harden({});
  const noTerms = harden({});
  const facets = await E(zoe).startInstance(
    installation,
    noIssuers,
    noTerms,
    privateArgs,
  );

  // Share instance widely via E(agoricNames).lookup('instance', 'bakeSaleAgent')
  produceInstance.resolve(facets.instance);

  // Share the publicFacet, creatorFacet, and adminFacet in the bootstrap space
  // for use by other CoreEval behaviors.
  bakeSaleKit.resolve(facets);
};
harden(executeProposal);

// "export" the function as the script completion value
executeProposal;