From f2f884a3171b8236c48bba87fd6b8422a1688bab Mon Sep 17 00:00:00 2001
From: Sebastian Kippe <sebastian@kip.pe>
Date: Tue, 13 Aug 2019 10:07:25 +0200
Subject: [PATCH] Connect to ipfs.kosmos.org node on start

This ensures that the local IPFS node is always connected to a known
Kosmos node before attempting to fetch documents. Vastly improves
performance.

closes #4
---
 index.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index d2d6918..d66e956 100755
--- a/index.js
+++ b/index.js
@@ -2,6 +2,7 @@
 
 const Kredits = require('kredits-contracts');
 const IpfsPinner = require('./lib/ipfs-pinner');
+const debug = require('debug')('ipfs-pinner');
 
 const argv = require('yargs')
   .default({ network: 'rinkeby', apm: 'open.aragonpm.eth', host: 'localhost', port: '5001', protocol: 'http', monitor: true })
@@ -26,6 +27,15 @@ 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(
@@ -35,7 +45,12 @@ console.log(`Using IPFS:`, ipfsConfig);
 
     // check the connection to the IPFS client
     // TODO redesign IPFS wrapper API and do not use an internal attribute
-    await kredits.ipfs._ipfsAPI.id();
+    const ipfsApi = kredits.ipfs._ipfsAPI;
+
+    await ipfsApi.id();
+
+    // TODO discover address dynamically from somewhere
+    await swarmConnect(ipfsApi, '/ip4/46.4.18.160/tcp/4001/ipfs/QmZ4Lpzhz8bafbTYvEMMCmrbrMM4JfyHDR23WbCSAd9bo7');
 
     const ipfsPinner = new IpfsPinner(kredits);