Merge pull request #928 from knorrium/fix_local_dev_proxy

Fix local dev proxy

frontend/angular.json

@@ -211,7 +211,7 @@
               "browserTarget": "mempool:build:production"
             },
             "local": {
-              "proxyConfig": "proxy.conf.js",
+              "proxyConfig": "proxy.conf.local.js",
               "verbose": true
             },
             "staging": {

frontend/proxy.conf.local.js

@@ -0,0 +1,73 @@
+
+const fs = require('fs');
+
+let PROXY_CONFIG = require('./proxy.conf.js');
+const BACKEND_CONFIG_FILE_NAME = '../backend/mempool-config.json';
+const FRONTEND_CONFIG_FILE_NAME = 'mempool-frontend-config.json';
+
+let backendConfigContent;
+let frontendConfigContent;
+
+// Read frontend config 
+try {
+    const rawConfig = fs.readFileSync(FRONTEND_CONFIG_FILE_NAME);
+    frontendConfigContent = JSON.parse(rawConfig);
+    console.log(`${FRONTEND_CONFIG_FILE_NAME} file found, using provided config`);
+} catch (e) {
+    console.log(e);
+    if (e.code !== 'ENOENT') {
+      throw new Error(e);
+  } else {
+      console.log(`${FRONTEND_CONFIG_FILE_NAME} file not found, using default config`);
+  }
+}
+
+// Read backend config
+try {
+    const rawConfig = fs.readFileSync(BACKEND_CONFIG_FILE_NAME);
+    backendConfigContent = JSON.parse(rawConfig);
+    console.log(`${BACKEND_CONFIG_FILE_NAME} file found, using provided config`);
+} catch (e) {
+    console.log(e);
+    if (e.code !== 'ENOENT') {
+      throw new Error(e);
+  } else {
+      console.log(`${BACKEND_CONFIG_FILE_NAME} file not found, using default config`);
+  }
+}
+
+// Remove the "/api/**" entry from the default proxy config
+let localDevContext = PROXY_CONFIG[0].context
+
+localDevContext.splice(PROXY_CONFIG[0].context.indexOf('/api/**'), 1);
+
+PROXY_CONFIG[0].context = localDevContext;
+
+// Change all targets to localhost
+PROXY_CONFIG.map(conf => conf.target = "http://localhost:8999");
+
+// Add rules for local backend
+if (backendConfigContent) {
+    PROXY_CONFIG.push({
+        context: ['/api/address/**', '/api/tx/**', '/api/block/**', '/api/blocks/**'],
+        target: `http://localhost:8999`,
+        secure: false,
+        changeOrigin: true,
+        proxyTimeout: 30000,
+        pathRewrite: {
+            "^/api/": "/api/v1/"
+        },
+    });    
+    PROXY_CONFIG.push({
+        context: ['/api/v1/**'],
+        target: `http://localhost:8999`,
+        secure: false,
+        changeOrigin: true,
+        proxyTimeout: 30000
+    });
+
+}
+
+console.log(PROXY_CONFIG);
+
+module.exports = PROXY_CONFIG;