Hello wrapper library

lib/abis/Contributors.json

@@ -1 +1 @@
-[{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"contributors","outputs":[{"name":"account","type":"address"},{"name":"profileHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"isCore","type":"bool"},{"name":"exists","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_proxiedContractName","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"contributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"contributorIds","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"oldProfileHash","type":"bytes32"},{"indexed":false,"name":"newProfileHash","type":"bytes32"}],"name":"ContributorProfileUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"oldAddress","type":"address"},{"indexed":false,"name":"newAddress","type":"address"}],"name":"ContributorAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"_address","type":"address"}],"name":"ContributorAdded","type":"event"},{"constant":false,"inputs":[{"name":"sender","type":"address"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"coreContributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_id","type":"uint256"},{"name":"_oldAddress","type":"address"},{"name":"_newAddress","type":"address"}],"name":"updateContributorAddress","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_id","type":"uint256"},{"name":"_hashFunction","type":"uint8"},{"name":"_hashSize","type":"uint8"},{"name":"_profileHash","type":"bytes32"}],"name":"updateContributorProfileHash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_address","type":"address"},{"name":"_hashFunction","type":"uint8"},{"name":"_hashSize","type":"uint8"},{"name":"_profileHash","type":"bytes32"},{"name":"isCore","type":"bool"}],"name":"addContributor","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"isCore","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"exists","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"}],"name":"addressIsCore","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"}],"name":"addressExists","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"}],"name":"getContributorIdByAddress","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"getContributorAddressById","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"getContributorById","outputs":[{"name":"account","type":"address"},{"name":"profileHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"isCore","type":"bool"},{"name":"exists","type":"bool"},{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]
+[{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"contributors","outputs":[{"name":"account","type":"address"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"isCore","type":"bool"},{"name":"exists","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_proxiedContractName","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"contributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"contributorIds","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"oldIpfsHash","type":"bytes32"},{"indexed":false,"name":"newIpfsHash","type":"bytes32"}],"name":"ContributorProfileUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"oldAccount","type":"address"},{"indexed":false,"name":"newAccount","type":"address"}],"name":"ContributorAccountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"account","type":"address"}],"name":"ContributorAdded","type":"event"},{"constant":false,"inputs":[{"name":"sender","type":"address"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"coreContributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"id","type":"uint256"},{"name":"oldAccount","type":"address"},{"name":"newAccount","type":"address"}],"name":"updateContributorAccount","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"id","type":"uint256"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"}],"name":"updateContributorIpfsHash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"isCore","type":"bool"}],"name":"addContributor","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"id","type":"uint256"}],"name":"isCore","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"id","type":"uint256"}],"name":"exists","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"addressIsCore","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"addressExists","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"getContributorIdByAddress","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"id","type":"uint256"}],"name":"getContributorAddressById","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"getContributorById","outputs":[{"name":"id","type":"uint256"},{"name":"account","type":"address"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"isCore","type":"bool"},{"name":"balance","type":"uint256"},{"name":"exists","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"}]

lib/abis/Operator.json

@@ -1 +1 @@
-[{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"proposals","outputs":[{"name":"creator","type":"address"},{"name":"recipientId","type":"uint256"},{"name":"votesCount","type":"uint256"},{"name":"votesNeeded","type":"uint256"},{"name":"amount","type":"uint256"},{"name":"executed","type":"bool"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"exists","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_proxiedContractName","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"sender","type":"address"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"creator","type":"address"},{"indexed":false,"name":"recipient","type":"uint256"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"ProposalCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"voter","type":"address"},{"indexed":false,"name":"totalVotes","type":"uint256"}],"name":"ProposalVoted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"recipient","type":"uint256"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"ProposalExecuted","type":"event"},{"constant":true,"inputs":[],"name":"contributorsContract","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"tokenContract","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"contributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"coreContributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_address","type":"address"},{"name":"_profileHash","type":"bytes32"},{"name":"_hashFunction","type":"uint8"},{"name":"_hashSize","type":"uint8"},{"name":"_isCore","type":"bool"}],"name":"addContributor","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_id","type":"uint256"},{"name":"_profileHash","type":"bytes32"},{"name":"_hashFunction","type":"uint8"},{"name":"_hashSize","type":"uint8"}],"name":"updateContributorProfileHash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"getContributor","outputs":[{"name":"account","type":"address"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"profileHash","type":"bytes32"},{"name":"isCore","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"proposalsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_recipient","type":"uint256"},{"name":"_amount","type":"uint256"},{"name":"_ipfsHash","type":"bytes32"},{"name":"_hashFunction","type":"uint8"},{"name":"_hashSize","type":"uint8"}],"name":"addProposal","outputs":[{"name":"proposalId","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_proposalId","type":"uint256"}],"name":"vote","outputs":[{"name":"_pId","type":"uint256"},{"name":"_executed","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_sender","type":"address"},{"name":"_proposalId","type":"uint256"}],"name":"hasVotedFor","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"}]
+[{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"proposals","outputs":[{"name":"creatorAccount","type":"address"},{"name":"contributorId","type":"uint256"},{"name":"votesCount","type":"uint256"},{"name":"votesNeeded","type":"uint256"},{"name":"amount","type":"uint256"},{"name":"executed","type":"bool"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"exists","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"proposalsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_proxiedContractName","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"sender","type":"address"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"creatorAccount","type":"address"},{"indexed":false,"name":"contributorId","type":"uint256"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"ProposalCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"voterId","type":"uint256"},{"indexed":false,"name":"totalVotes","type":"uint256"}],"name":"ProposalVoted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"id","type":"uint256"},{"indexed":false,"name":"contributorId","type":"uint256"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"ProposalExecuted","type":"event"},{"constant":true,"inputs":[],"name":"contributorsContract","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"tokenContract","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"contributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"coreContributorsCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"contributorId","type":"uint256"},{"name":"amount","type":"uint256"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"}],"name":"addProposal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"proposalId","type":"uint256"}],"name":"getProposal","outputs":[{"name":"id","type":"uint256"},{"name":"creatorAccount","type":"address"},{"name":"contributorId","type":"uint256"},{"name":"votesCount","type":"uint256"},{"name":"votesNeeded","type":"uint256"},{"name":"amount","type":"uint256"},{"name":"executed","type":"bool"},{"name":"ipfsHash","type":"bytes32"},{"name":"hashFunction","type":"uint8"},{"name":"hashSize","type":"uint8"},{"name":"voterIds","type":"uint256[]"},{"name":"exists","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"proposalId","type":"uint256"}],"name":"vote","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

lib/abis/Token.json

@@ -1 +1 @@
-[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_proxiedContractName","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"recipient","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"proposalId","type":"uint256"}],"name":"LogMint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":false,"inputs":[{"name":"sender","type":"address"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_recipient","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_proposalId","type":"uint256"}],"name":"mintFor","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]
+[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_proxiedContractName","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"recipient","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"proposalId","type":"uint256"}],"name":"LogMint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":false,"inputs":[{"name":"sender","type":"address"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"contributorAccount","type":"address"},{"name":"amount","type":"uint256"},{"name":"proposalId","type":"uint256"}],"name":"mintFor","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

lib/addresses/Contributors.json

@@ -1 +1 @@
-{"100":"0x34262a9471ede40e94497d110652dcf0f26fa0db"}
+{"100":"0xa7fc9b1f678c41396b53904f94f50a42ff44d826"}

lib/addresses/Operator.json

@@ -1 +1 @@
-{"100":"0x901f3e99a170619857b354c101aa97244885a39e"}
+{"100":"0x95d3bd7d136bb0b7ac9988097e964236f8a9976e"}

lib/addresses/Registry.json

@@ -1 +1 @@
-{"100":"0x9447a29373cf3ce0edf41804820c2a9da0ef4fd9"}
+{"100":"0x513f8e80a8fbb9fa188320ecf231efcf2f6da9c5"}

lib/addresses/Token.json

@@ -1 +1 @@
-{"100":"0x8ecf9fa8a1c50179cef966d53aaee3d2a382c932"}
+{"100":"0x3fc29fbe40c2d0ca78c7e81342f00226650fe2ad"}

lib/contracts/base.js

@@ -0,0 +1,27 @@
+class Base {
+  constructor(contract) {
+    this.contract = contract;
+  }
+
+  get functions() {
+    return this.contract.functions;
+  }
+
+  get ipfs() {
+    if (!this._ipfsAPI) { throw new Error('IPFS API not configured; please set an ipfs instance'); }
+    return this._ipfsAPI;
+  }
+
+  set ipfs(ipfsAPI) {
+    this._ipfsAPI = ipfsAPI;
+  }
+
+  on(type, callback) {
+    let eventMethod = `on${type.toLowerCase()}`;
+    // Don't use this.contract.events here. Seems to be a bug in ethers.js
+    this.contract[eventMethod] = callback;
+
+    return this;
+  }
+}
+module.exports = Base;

lib/contracts/contributor.js

@@ -0,0 +1,58 @@
+const ethers = require('ethers');
+const RSVP = require('rsvp');
+
+const ContributorSerializer = require('../serializers/contributor');
+const Base = require('./base');
+
+class Contributor extends Base {
+  all() {
+    return this.functions.contributorsCount()
+      .then((count) => {
+        count = count.toNumber();
+        let contributors = [];
+
+        for (let id = 1; id <= count; id++) {
+          contributors.push(this.getById(id));
+        }
+
+        return RSVP.all(contributors);
+      });
+  }
+
+  getById(id) {
+    id = ethers.utils.bigNumberify(id);
+
+    return this.functions.getContributorById(id)
+      .then((data) => {
+        // TODO: remove when naming updated on the contract
+        data.hashDigest = data.ipfsHash;
+        return data;
+      })
+      // Fetch IPFS data if available
+      .then((data) => {
+        return this.ipfs.catAndMerge(data, ContributorSerializer.deserialize);
+      });
+  }
+
+  add(contributorAttr) {
+    let json = ContributorSerializer.serialize(contributorAttr);
+    // TODO: validate against schema
+
+    return this.ipfs
+      .add(json)
+      .then((ipfsHashAttr) => {
+        let contributor = [
+          contributorAttr.address,
+          ipfsHashAttr.hashDigest,
+          ipfsHashAttr.hashFunction,
+          ipfsHashAttr.hashSize,
+          contributorAttr.isCore,
+        ];
+
+        console.log('[kredits] addContributor', ...contributor);
+        return this.functions.addContributor(...contributor);
+      });
+  }
+}
+
+module.exports = Contributor;

lib/contracts/index.js

@@ -0,0 +1,5 @@
+module.exports = {
+  Contributors: require('./contributor'),
+  Operator: require('./operator'),
+  Token: require('./token')
+}

lib/contracts/operator.js

@@ -0,0 +1,58 @@
+const ethers = require('ethers');
+const RSVP = require('rsvp');
+
+const ContributionSerializer = require('../serializers/contribution');
+const Base = require('./base');
+
+class Operator extends Base {
+  all() {
+    return this.functions.proposalsCount()
+      .then((count) => {
+        count = count.toNumber();
+        let proposals = [];
+
+        for (let id = 1; id <= count; id++) {
+          proposals.push(this.getById(id));
+        }
+
+        return RSVP.all(proposals);
+      });
+  }
+
+  getById(id) {
+    id = ethers.utils.bigNumberify(id);
+
+    return this.functions.getProposal(id)
+      .then((data) => {
+        // TODO: remove when naming updated on the contract
+        data.hashDigest = data.ipfsHash;
+        return data;
+      })
+      // Fetch IPFS data if available
+      .then((data) => {
+        return this.ipfs.catAndMerge(data, ContributionSerializer.deserialize);
+      });
+  }
+
+  addProposal(proposalAttr) {
+    let json = ContributionSerializer.serialize(proposalAttr);
+    // TODO: validate against schema
+
+    return this.ipfs
+      .add(json)
+      .then((ipfsHashAttr) => {
+        let proposal = [
+          proposalAttr.contributorId,
+          proposalAttr.amount,
+          ipfsHashAttr.hashDigest,
+          ipfsHashAttr.hashFunction,
+          ipfsHashAttr.hashSize,
+        ];
+
+        console.log('[kredits] addProposal', ...proposal);
+        return this.functions.addProposal(...proposal);
+      });
+  }
+}
+
+module.exports = Operator;

lib/contracts/token.js

@@ -0,0 +1,7 @@
+const Base = require('./base');
+
+class Token extends Base {
+}
+
+module.exports = Base;
+

lib/index.js

@@ -1 +0,0 @@
-module.exports = ["Contributors","Operator","Registry","Token"];

lib/kredits.js

@@ -0,0 +1,128 @@
+const ethers = require('ethers');
+const RSVP = require('rsvp');
+
+const abis = {
+  Contributors: require('./abis/Contributors.json'),
+  Operator: require('./abis/Operator.json'),
+  Registry: require('./abis/Registry.json'),
+  Token: require('./abis/Token.json')
+};
+const addresses = {
+  Registry: require('./addresses/Registry.json')
+};
+
+const contracts = require('./contracts');
+const IPFS = require('./utils/ipfs')
+
+// Helpers
+function capitalize(word) {
+  let [first, ...rest] = word;
+  return `${first.toUpperCase()}${rest.join('')}`;
+}
+
+class Kredits {
+  static get contractNames() {
+    return Object.keys(abis);
+  }
+
+  constructor(provider, signer, addresses) {
+    this.provider = provider;
+    this.signer = signer;
+
+    // Initialize our registry contract
+    this.addresses = addresses;
+    this.contracts = {};
+  }
+
+  static setup(provider, signer, ipfsConfig) {
+    this.ipfsConfig = ipfsConfig;
+    let ipfsAPI = new IPFS(ipfsConfig);
+    this.ipfs = ipfsAPI;
+
+    return this.ipfs._ipfsAPI.id().catch((error) => {
+      throw new Error(`IPFS node not available; config: ${JSON.stringify(ipfsConfig)} - ${error.message}`);
+    }).then(() => {
+
+      let registryContract = this.initRegistryContract(provider);
+
+      let addresses = Kredits.contractNames.reduce((mem, name) => {
+        let contractName = capitalize(name);
+        mem[contractName] = registryContract.functions.getProxyFor(contractName).catch((error) => {
+          throw new Error(`Failed to get address for ${contractName} from registry at ${registryContract.address}
+            - correct registry? does it have version entry? - ${error.message}`
+          );
+        });
+        return mem;
+      }, {});
+
+      return RSVP.hash(addresses)
+        .then((addresses) => {
+          let kredits = new Kredits(provider, signer, addresses);
+          kredits.ipfs = ipfsAPI;
+          return kredits;
+        });
+    });
+  }
+
+  static initRegistryContract(provider) {
+    let address = addresses['Registry'][provider.chainId];
+    if (!address) {
+      throw new Error(`Registry address not found; invalid network?
+        requested network: ${provider.chainId}
+        supported networks: ${Object.keys(addresses['Registry'])}
+      `);
+    }
+    provider.getCode(address).then((code) => {
+      // not sure if we always get the same return value of the code is not available
+      // that's why checking if it is < 5 long
+      if (code === '0x00' || code.length < 5) {
+        throw new Error(`Registry not found at ${address} on network ${provider.chainId}`);
+      }
+    });
+    let abi = abis['Registry'];
+    console.log('Initialize registry contract:', address, abi, provider);
+    return new ethers.Contract(address, abi, provider);
+  }
+
+  get ipfs() {
+    return this._ipfsAPI;
+  }
+  set ipfs(ipfs) {
+    this._ipfsAPI = ipfs;
+  }
+
+  get Contributor() {
+    // TODO: rename to contributor
+    return this.contractFor('contributors');
+  }
+
+  get Operator() {
+    return this.contractFor('operator');
+  }
+
+  get Token() {
+    return this.contractFor('token');
+  }
+
+  // Should be private
+  contractFor(name) {
+    if (this.contracts[name]) {
+      return this.contracts[name];
+    }
+
+    let contractName = capitalize(name);
+    console.log(contractName);
+    console.log(contracts);
+    let address = this.addresses[contractName];
+    if (!address || !abis[contractName]) {
+      throw new Error(`Address or ABI not found for ${contractName}`);
+    }
+    let contract = new ethers.Contract(address, abis[contractName], this.signer);
+    this.contracts[name] = new contracts[contractName](contract);
+    this.contracts[name].ipfs = this.ipfs;
+
+    return this.contracts[name];
+  }
+}
+
+module.exports = Kredits;

lib/serializers/contribution.js

@@ -0,0 +1,66 @@
+/**
+ * Handle serialization for JSON-LD object of the contribution, according to
+ * https://github.com/67P/kosmos-schemas/blob/master/schemas/contribution.json
+ *
+ * @class
+ * @public
+ */
+class Contribution {
+ /**
+  * Deserialize JSON to object
+  *
+  * @method
+  * @public
+  */
+  static deserialize(serialized) {
+    let {
+      kind,
+      description,
+      details,
+      url,
+    } = JSON.parse(serialized.toString('utf8'));
+
+    return {
+      kind,
+      description,
+      details,
+      url,
+      ipfsData: serialized,
+    };
+  }
+
+ /**
+  * Serialize object to JSON
+  *
+  * @method
+  * @public
+  */
+  static serialize(deserialized) {
+    let {
+      contributorIpfsHash,
+      kind,
+      description,
+      url,
+    } = deserialized;
+
+    let data = {
+      "@context": "https://schema.kosmos.org",
+      "@type": "Contribution",
+      "contributor": {
+        "ipfs": contributorIpfsHash
+      },
+      kind,
+      description,
+      "details": {}
+    };
+
+    if (url) {
+      data["url"] = url;
+    }
+
+    // Write it pretty to ipfs
+    return JSON.stringify(data, null, 2);
+  }
+}
+
+module.exports = Contribution;

lib/serializers/contributor.js

@@ -0,0 +1,95 @@
+/**
+ * Handle serialization for JSON-LD object of the contributor, according to
+ * https://github.com/67P/kosmos-schemas/blob/master/schemas/contributor.json
+ *
+ * @class
+ * @public
+ */
+class Contributor {
+ /**
+  * Deserialize JSON to object
+  *
+  * @method
+  * @public
+  */
+  static deserialize(serialized) {
+    let {
+      name,
+      kind,
+      url,
+      accounts,
+    } = JSON.parse(serialized.toString('utf8'));
+
+    let github_username, github_uid, wiki_username;
+    let github = accounts.find((a) => a.site === 'github.com');
+    let wiki   = accounts.find((a) => a.site === 'wiki.kosmos.org');
+
+    if (github) {
+      (({ username: github_username, uid: github_uid} = github));
+    }
+    if (wiki) {
+      (({ username: wiki_username } = wiki));
+    }
+
+    return {
+      name,
+      kind,
+      url,
+      github_uid,
+      github_username,
+      wiki_username,
+      ipfsData: serialized,
+    };
+  }
+
+ /**
+  * Serialize object to JSON
+  *
+  * @method
+  * @public
+  */
+  static serialize(deserialized) {
+    let {
+      name,
+      kind,
+      url,
+      github_uid,
+      github_username,
+      wiki_username,
+    } = deserialized;
+
+    let data = {
+      "@context": "https://schema.kosmos.org",
+      "@type": "Contributor",
+      kind,
+      name,
+      "accounts": []
+    };
+
+    if (url) {
+      data["url"] = url;
+    }
+
+    if (github_uid) {
+      data.accounts.push({
+        "site": "github.com",
+        "uid": github_uid,
+        "username": github_username,
+        "url": `https://github.com/${github_username}`
+      });
+    }
+
+    if (wiki_username) {
+      data.accounts.push({
+        "site": "wiki.kosmos.org",
+        "username": wiki_username,
+        "url": `https://wiki.kosmos.org/User:${wiki_username}`
+      });
+    }
+
+    // Write it pretty to ipfs
+    return JSON.stringify(data, null, 2);
+  }
+}
+
+module.exports = Contributor;

lib/utils/ipfs.js

@@ -0,0 +1,59 @@
+const ipfsAPI = require('ipfs-api');
+const multihashes = require('multihashes');
+
+class IPFS {
+
+  constructor(config) {
+    this._ipfsAPI = ipfsAPI(config);
+    this._config = config;
+  }
+
+  catAndMerge(data, deserialize) {
+    // if no hash details are found simply return the data; nothing to merge
+    if (!data.hashSize || data.hashSize === 0) {
+      return data;
+    }
+    // merge ipfsHash (encoded from hashDigest, hashSize, hashFunction)
+    data.ipfsHash = this.encodeHash(data);
+
+    return this.cat(data)
+      .then(deserialize)
+      .then((attributes) => {
+        return Object.assign({}, data, attributes);
+      });
+  }
+
+  add(data) {
+    return this._ipfsAPI
+      .add(new this._ipfsAPI.Buffer(data))
+      .then((res) => {
+        return this.decodeHash(res[0].hash);
+      });
+  }
+
+  cat(hashData) {
+    let ipfsHash = hashData; // default - if it is a string
+    if (hashData.hasOwnProperty('hashSize')) {
+      ipfsHash = this.encodeHash(hashData);
+    }
+    return this._ipfsAPI.cat(ipfsHash);
+  }
+
+  decodeHash(ipfsHash) {
+    let multihash = multihashes.decode(multihashes.fromB58String(ipfsHash));
+    return {
+      hashDigest: '0x' + multihashes.toHexString(multihash.digest),
+      hashSize: multihash.length,
+      hashFunction: multihash.code,
+      ipfsHash: ipfsHash
+    };
+  }
+
+  encodeHash(hashData) {
+    let digest = this._ipfsAPI.Buffer.from(hashData.hashDigest.slice(2), 'hex');
+    return multihashes.encode(digest, hashData.hashFunction, hashData.hashSize);
+  }
+
+}
+
+module.exports = IPFS;

package.json

@@ -2,7 +2,7 @@
   "name": "kredits-contracts",
   "version": "1.0.0",
   "description": "Ethereum contracts and npm wrapper for Kredits",
-  "main": "index.js",
+  "main": "./lib/kredits.js",
   "directories": {
     "test": "test"
   },
@@ -25,8 +25,12 @@
   "homepage": "https://github.com/67P/truffle-kredits#readme",
   "devDependencies": {
     "ganache-cli": "^6.0.3",
-    "ipfs-api": "^19.0.0",
     "truffle": "^4.1.3",
     "zeppelin-solidity": "^1.7.0"
+  },
+  "dependencies": {
+    "ethers": "^3.0.15",
+    "ipfs-api": "^19.0.0",
+    "rsvp": "^4.8.2"
   }
 }

scripts/build-json.js

@@ -26,6 +26,6 @@ files.forEach((fileName) => {
     }, {});
   fs.writeFileSync(addresseFile, JSON.stringify(addresses));
 
-  let indexFile = path.join(libPath, 'index.js');
-  fs.writeFileSync(indexFile, `module.exports = ${JSON.stringify(files)};`);
 });
+
+console.log("Don't forget to reaload the JSON files from your application; i.e. restart kredits-web");