refactor rpc config

Author: juliangruber

lib/constants.js

@@ -1,5 +1,5 @@
 export const SPARK_VERSION = '1.11.3'
 export const MAX_CAR_SIZE = 200 * 1024 * 1024 // 200 MB
 export const APPROX_ROUND_LENGTH_IN_MS = 20 * 60_000 // 20 minutes
-
-export const RPC_REQUEST = new Request('https://api.node.glif.io/')
+export const RPC_URL = 'https://api.node.glif.io/'
+export const RPC_AUTH = 'Bz8B9c8hKIp+/IyePpgORexkDDq+8c9atapgGuudtQ0='

lib/miner-info.js

@@ -1,4 +1,4 @@
-import { RPC_REQUEST } from './constants.js'
+import { RPC_URL, RPC_AUTH } from './constants.js'
 
 /**
  * @param {string} minerId A miner actor id, e.g. `f0142637`
@@ -19,12 +19,12 @@ export async function getMinerPeerId (minerId) {
  * @param {unknown[]} params
  */
 async function rpc (method, ...params) {
-  const req = new Request(RPC_REQUEST, {
+  const req = new Request(RPC_URL, {
     method: 'POST',
     headers: {
       'content-type': 'application/json',
       accepts: 'application/json',
-      authorization: 'Bearer Bz8B9c8hKIp+/IyePpgORexkDDq+8c9atapgGuudtQ0='
+      authorization: `Bearer ${RPC_AUTH}`
     },
     body: JSON.stringify({
       jsonrpc: '2.0',