Working on #188

Switching to BlueWallet-based ElectrumX connector which is a maintained fork of old ElectrumX connection code. Seems that some extra effort has been put into reconnecting and this also drops some manual error handling that my old code incorporated.

app/api/electrumAddressApi.js

@@ -9,7 +9,10 @@ var hexEnc = require("crypto-js/enc-hex");
 
 var coinConfig = coins[config.coin];
 
-const ElectrumClient = require('electrum-client');
+global.net = require('net');
+global.tls = require('tls');
+
+const ElectrumClient = require('rn-electrum-client');
 
 var electrumClients = [];
 
@@ -41,7 +44,7 @@ function connectToServer(host, port, protocol) {
 		var defaultProtocol = port === 50001 ? 'tcp' : 'tls';
 
 		var electrumClient = new ElectrumClient(port, host, protocol || defaultProtocol);
-		electrumClient.initElectrum({client:"btc-rpc-explorer-v1.1", version:"1.4"}).then(function(res) {
+		electrumClient.initElectrum({client:"btc-rpc-explorer-v2", version:"1.4"}).then(function(res) {
 			debugLog("Connected to ElectrumX Server: " + host + ":" + port + ", versions: " + JSON.stringify(res));
 
 			electrumClients.push(electrumClient);
@@ -60,12 +63,8 @@ function connectToServer(host, port, protocol) {
 function runOnServer(electrumClient, f) {
 	return new Promise(function(resolve, reject) {
 		f(electrumClient).then(function(result) {
-			if (result.success) {
-				resolve({result:result.response, server:electrumClient.host});
-
-			} else {
-				reject({error:result.error, server:electrumClient.host});
-			}
+			resolve({result:result, server:electrumClient.host});
+
 		}).catch(function(err) {
 			utils.logError("dif0e21qdh", err, {host:electrumClient.host, port:electrumClient.port});
 

package.json

@@ -32,7 +32,6 @@
 		"debug": "~4.1.1",
 		"decimal.js": "^10.2.0",
 		"dotenv": "^8.2.0",
-		"electrum-client": "github:chaintools/node-electrum-client#43a999036f9c5",
 		"express": "^4.17.1",
 		"express-session": "^1.17.1",
 		"jstransformer-markdown-it": "^2.1.0",
@@ -47,6 +46,7 @@
 		"qrcode": "^1.4.4",
 		"redis": "^2.8.0",
 		"request": "^2.88.2",
+		"rn-electrum-client": "github:janoside/rn-electrum-client",
 		"semver": "^7.3.2",
 		"serve-favicon": "^2.5.0",
 		"simple-git": "^1.132.0"

views/address.pug

@@ -294,8 +294,8 @@ block content
 
 								else if (addressDetailsErrors && addressDetailsErrors.length > 0)
 									each err in addressDetailsErrors
-										if (err.e && err.e.error && err.e.error.message == "history too large")
-											span Failed to retrieve transaction history from ElectrumX. See 
+										if (err.e && err.e && err.e.message == "history too large")
+											span Failed to retrieve transaction history from ElectrumX because this address is involved in too many transactions (more than ElectrumX currently supports retrieving). See 
 											a(href="https://github.com/janoside/btc-rpc-explorer/issues/67") Issue #67
 											span  for more information.
 
@@ -304,6 +304,11 @@ block content
 											a(href="https://github.com/janoside/btc-rpc-explorer/blob/master/.env-sample") the example configuration file
 											span  for help setting up an address API if desired.
 
+										else
+											span.text-danger Error retrieving transaction history
+											pre
+												code.json #{JSON.stringify(err, null, 4)}
+
 								else if (transactions.length == 0)
 									span No transactions found