dshackle cli tool

dshackle-cli/src/grpc-clent.js

@@ -0,0 +1,25 @@
+const grpc = require("@grpc/grpc-js");
+const path = require('path')
+const protoLoader = require("@grpc/proto-loader");
+
+const PROTO_PATH = path.join(__dirname, "../proto/blockchain.proto");
+
+const options = {
+    keepCase: true,
+    longs: String,
+    enums: String,
+    defaults: true,
+    oneofs: true,
+};
+
+const packageDefinition = protoLoader.loadSync(PROTO_PATH, options);
+const emerald = grpc.loadPackageDefinition(packageDefinition).emerald
+
+export function describe(url, handler) {
+    const client = new emerald.Blockchain(
+        url,
+        grpc.credentials.createInsecure()
+    );
+    console.log('Connecting to: ' + url + '...')
+    client.Describe({}, handler);
+}