Use DNS multiaddr

Makes it much easier to identify the node you're connecting to

index.js

@@ -3,9 +3,24 @@
 const Kredits = require('kredits-contracts');
 const IpfsPinner = require('./lib/ipfs-pinner');
 const debug = require('debug')('ipfs-pinner');
+const { inspect } = require('util');
+
+// TODO make configurable
+const peerId = "QmbqZCZ2RzVr4r1UEdFak6ra76kHxtGmfV9r3e1Ev6Tj5D";
+const peerAddrs = [ "/dns4/barnard.kosmos.org/tcp/4001" ];
+const bootstrapNode = `${peerAddrs[0]}/ipfs/${peerId}`;
+const peerConfig = { "ID": peerId, "Addrs": [ peerAddrs ] };
 
 const argv = require('yargs')
-  .default({ network: 'rinkeby', apm: 'open.aragonpm.eth', host: 'localhost', port: '5001', protocol: 'http', monitor: true })
+  .default({
+    network: 'rinkeby',
+    apm: 'open.aragonpm.eth',
+    host: 'localhost',
+    port: '5001',
+    protocol: 'http',
+    monitor: true,
+    bootstrapNode: bootstrapNode
+  })
   .boolean('monitor')
   .describe({
     network: 'Ethereum network to connect to',
@@ -14,7 +29,8 @@ const argv = require('yargs')
     host: 'IPFS API host',
     port: 'IPFS API port',
     protocol: 'IPFS API protocol',
-    monitor: 'Monitor contract events for new IPFS documents'
+    monitor: 'Monitor contract events for new IPFS documents',
+    bootstrapNode: 'IPFS node address to connect to before fetching documents'
   })
   .example('$0 --network rinkeby --host localhost', 'Pins all existing IPFS documents to the IPFS API running on localhost and monitors for new events.')
   .argv;
@@ -27,15 +43,6 @@ const ipfsConfig = {
 
 console.log(`Using IPFS:`, ipfsConfig);
 
-async function swarmConnect (ipfsApi, address) {
-  return new Promise((resolve, reject) => {
-    debug(`Connecting to known IPFS node: ${address}`);
-    ipfsApi.swarm.connect(address, err => {
-      return err ? reject(err) : resolve();
-    })
-  });
-}
-
 (async () => {
   try {
     const kredits = await Kredits.for(
@@ -49,18 +56,33 @@ async function swarmConnect (ipfsApi, address) {
 
     await ipfsApi.id();
 
-    // TODO discover address dynamically from somewhere
-    await swarmConnect(ipfsApi, '/ip4/46.4.18.160/tcp/4001/ipfs/QmZ4Lpzhz8bafbTYvEMMCmrbrMM4JfyHDR23WbCSAd9bo7');
+    // debug(`Connecting to known IPFS node ${argv.bootstrapNode}`);
+    // await ipfsApi.swarm.connect(argv.bootstrapNode);
 
-    const ipfsPinner = new IpfsPinner(kredits);
+    let peers;
 
-    ipfsPinner.pinAll().then(pins => {
-      console.log(`Pinned ${pins.length} existing documents`);
-    });
+    try {
+      peers = await ipfsApi.config.get('Peering.Peers');
+    } catch(e) { /* No peers configured */ }
 
-    ipfsPinner.monitor(pin => {
-      console.log('Pinned a new document:', pin[0]["hash"]);
-    });
+    if (peers) {
+      // TODO check for kosmos peer
+      debug('IPFS peers configured:');
+      debug(inspect(peers.map(p => p.ID)));
+    } else {
+      debug(`Configuring persistent IPFS peer: ${peerId}`);
+      await ipfsApi.config.set('Peering', { "Peers": [ peerConfig ]});
+    }
+
+    // const ipfsPinner = new IpfsPinner(kredits);
+
+    // ipfsPinner.pinAll().then(pins => {
+    //   console.log(`Pinned ${pins.length} existing documents`);
+    // });
+    //
+    // ipfsPinner.monitor(pin => {
+    //   console.log('Pinned a new document:', pin[0]["hash"]);
+    // });
 
     console.log(`Subscribed to DAO: ${kredits.Kernel.contract.address}`);
   } catch(e) {

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@67p/kredits-ipfs-pinner",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@kosmos/kredits-ipfs-pinner",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "description": "Pins IPFS data of a Kredits organization on an IPFS node",
   "main": "index.js",
   "scripts": {