merge files from the blockchain infra repo (#59)

code/protocol_demos/rabbitmq/consumer.js

@@ -0,0 +1,29 @@
+const amqp = require("amqplib");
+
+connect();
+async function connect() {
+
+    try {
+        const amqpServer = "amqp://localhost:5672"
+        const connection = await amqp.connect(amqpServer)
+        const channel = await connection.createChannel();
+        await channel.assertQueue("jobs");
+        
+        channel.consume("jobs", message => {
+            const input = JSON.parse(message.content.toString());
+            console.log(`Recieved job with input ${input.number}`)
+            //"7" == 7 true
+            //"7" === 7 false
+
+            if (input.number == 7 ) 
+                channel.ack(message);
+        })
+
+        console.log("Waiting for messages...")
+    
+    }
+    catch (ex){
+        console.error(ex)
+    }
+
+}