generalize bitcoind json-rpc

lib/plugins/common/json-rpc.js

@@ -0,0 +1,46 @@
+// JSON-RPC for bitcoind-like interfaces
+const axios = require('axios')
+const uuid = require('uuid')
+const fs = require('fs')
+
+module.exports = {fetch, parseConf}
+
+function fetch (account, method, params) {
+  const data = {
+    method,
+    params,
+    id: uuid.v4()
+  }
+
+  return axios({
+    method: 'post',
+    auth: {username: account.username, password: account.password},
+    url: `http://localhost:${account.port}`,
+    data
+  })
+  .then(r => {
+    if (r.error) throw r.error
+    return r.data.result
+  })
+  .catch(err => {
+    console.log(err.response.data.error)
+    throw err
+  })
+}
+
+function parseConf (confPath) {
+  const conf = fs.readFileSync(confPath)
+  const lines = conf.toString().split('\n', 2)
+
+  const res = {}
+  for (let i = 0; i < lines.length; i++) {
+    const keyVal = lines[i].split('=')
+
+    // skip when value is empty
+    if (!keyVal[1]) continue
+
+    res[keyVal[0]] = keyVal[1]
+  }
+
+  return res
+}