diff --git a/package-lock.json b/package-lock.json
index 223ee8ab..c035817c 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -1490,6 +1564,11 @@
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@@ -1569,11 +1674,42 @@
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@@ -2043,6 +2232,71 @@
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@@ -2180,11 +2443,25 @@
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       "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
-      "dev": true,
       "requires": {
         "end-of-stream": "^1.1.0",
         "once": "^1.3.1"
       }
     },
+    "pumpify": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/pumpify/-/pumpify-1.5.1.tgz",
+      "integrity": "sha512-oClZI37HvuUJJxSKKrC17bZ9Cu0ZYhEAGPsPUy9KlMUmv9dKX2o77RUmq7f3XjIxbwyGwYzbzQ1L2Ks8sIradQ==",
+      "requires": {
+        "duplexify": "^3.6.0",
+        "inherits": "^2.0.3",
+        "pump": "^2.0.0"
+      },
+      "dependencies": {
+        "pump": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/pump/-/pump-2.0.1.tgz",
+          "integrity": "sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==",
+          "requires": {
+            "end-of-stream": "^1.1.0",
+            "once": "^1.3.1"
+          }
+        }
+      }
+    },
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
       "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
     },
+    "qlobber": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/qlobber/-/qlobber-5.0.3.tgz",
+      "integrity": "sha512-wW4GTZPePyh0RgOsM18oDyOUlXfurVRgoNyJfS+y7VWPyd0GYhQp5T2tycZFZjonH+hngxIfklGJhTP/ghidgQ==",
+      "dev": true
+    },
     "qs": {
       "version": "6.7.0",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
@@ -4889,6 +5422,20 @@
         "type-fest": "^0.8.1"
       }
     },
+    "readable-stream": {
+      "version": "2.3.7",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+      "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+      "requires": {
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
+      }
+    },
     "regex-not": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/regex-not/-/regex-not-1.0.2.tgz",
@@ -4899,11 +5446,15 @@
         "safe-regex": "^1.1.0"
       }
     },
+    "reinterval": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/reinterval/-/reinterval-1.1.0.tgz",
+      "integrity": "sha1-M2Hs+jymwYKDOA3Qu5VG85D17Oc="
+    },
     "remove-trailing-separator": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz",
-      "integrity": "sha1-wkvOKig62tW8P1jg1IJJuSN52O8=",
-      "dev": true
+      "integrity": "sha1-wkvOKig62tW8P1jg1IJJuSN52O8="
     },
     "repeat-element": {
       "version": "1.1.3",
@@ -5060,6 +5611,18 @@
       "resolved": "https://registry.npmjs.org/ret/-/ret-0.2.2.tgz",
       "integrity": "sha512-M0b3YWQs7R3Z917WRQy1HHA7Ba7D8hvZg6UE5mLykJxQVE2ju0IXbGlaHPPlkY+WN7wFP+wUMXmBFA0aV6vYGQ=="
     },
+    "retimer": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/retimer/-/retimer-2.0.0.tgz",
+      "integrity": "sha512-KLXY85WkEq2V2bKex/LOO1ViXVn2KGYe4PYysAdYdjmraYIUsVkXu8O4am+8+5UbaaGl1qho4aqAAPHNQ4GSbg==",
+      "dev": true
+    },
+    "reusify": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.0.4.tgz",
+      "integrity": "sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==",
+      "dev": true
+    },
     "rimraf": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
@@ -5078,8 +5641,7 @@
     "safe-buffer": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-      "dev": true
+      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
     },
     "safe-regex": {
       "version": "1.1.0",
@@ -5315,6 +5877,15 @@
       "dev": true,
       "optional": true
     },
+    "shortid": {
+      "version": "2.2.15",
+      "resolved": "https://registry.npmjs.org/shortid/-/shortid-2.2.15.tgz",
+      "integrity": "sha512-5EaCy2mx2Jgc/Fdn9uuDuNIIfWBpzY4XIlhoqtXF6qsf+/+SGZ+FxDdX/ZsMZiWupIWNqAEmiNY4RC+LSmCeOw==",
+      "dev": true,
+      "requires": {
+        "nanoid": "^2.1.0"
+      }
+    },
     "signal-exit": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.3.tgz",
@@ -5522,6 +6093,26 @@
         "extend-shallow": "^3.0.0"
       }
     },
+    "split2": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/split2/-/split2-3.2.2.tgz",
+      "integrity": "sha512-9NThjpgZnifTkJpzTZ7Eue85S49QwpNhZTq6GRJwObb6jnLFNGB7Qm73V5HewTROPyxD0C29xqmaI68bQtV+hg==",
+      "requires": {
+        "readable-stream": "^3.0.0"
+      },
+      "dependencies": {
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        }
+      }
+    },
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -5593,6 +6184,11 @@
       "integrity": "sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=",
       "dev": true
     },
+    "stream-shift": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/stream-shift/-/stream-shift-1.0.1.tgz",
+      "integrity": "sha512-AiisoFqQ0vbGcZgQPY1cdP2I76glaVA/RauYR4G4thNFgkTqr90yXTo4LYX60Jl+sIlPNHHdGSwo01AvbKUSVQ=="
+    },
     "string-length": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/string-length/-/string-length-4.0.1.tgz",
@@ -5614,6 +6210,14 @@
         "strip-ansi": "^6.0.0"
       }
     },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
     "strip-ansi": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
@@ -5693,12 +6297,39 @@
       "integrity": "sha512-fcwX4mndzpLQKBS1DVYhGAcYaYt7vsHNIvQV+WXMvnow5cgjPphq5CaayLaGsjRdSCKZFNGt7/GYAuXaNOiYCA==",
       "dev": true
     },
+    "through2": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/through2/-/through2-2.0.5.tgz",
+      "integrity": "sha512-/mrRod8xqpA+IHSLyGCQ2s8SPHiCDEeQJSep1jqLYeEUClOFG2Qsh+4FU6G9VeqpZnGW/Su8LQGc4YKni5rYSQ==",
+      "requires": {
+        "readable-stream": "~2.3.6",
+        "xtend": "~4.0.1"
+      }
+    },
+    "through2-filter": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/through2-filter/-/through2-filter-3.0.0.tgz",
+      "integrity": "sha512-jaRjI2WxN3W1V8/FMZ9HKIBXixtiqs3SQSX4/YGIiP3gL6djW48VoZq9tDqeCWs3MT8YY5wb/zli8VW8snY1CA==",
+      "requires": {
+        "through2": "~2.0.0",
+        "xtend": "~4.0.0"
+      }
+    },
     "tmpl": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.4.tgz",
       "integrity": "sha1-I2QN17QtAEM5ERQIIOXPRA5SHdE=",
       "dev": true
     },
+    "to-absolute-glob": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/to-absolute-glob/-/to-absolute-glob-2.0.2.tgz",
+      "integrity": "sha1-GGX0PZ50sIItufFFt4z/fQ98hJs=",
+      "requires": {
+        "is-absolute": "^1.0.0",
+        "is-negated-glob": "^1.0.0"
+      }
+    },
     "to-fast-properties": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
@@ -5820,6 +6451,11 @@
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
       "dev": true
     },
+    "type": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/type/-/type-1.2.0.tgz",
+      "integrity": "sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg=="
+    },
     "type-check": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
@@ -5850,6 +6486,11 @@
         "mime-types": "~2.1.24"
       }
     },
+    "typedarray": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+      "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
+    },
     "typedarray-to-buffer": {
       "version": "3.1.5",
       "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
@@ -5865,6 +6506,11 @@
       "integrity": "sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==",
       "dev": true
     },
+    "unc-path-regex": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
+      "integrity": "sha1-5z3T17DXxe2G+6xrCufYxqadUPo="
+    },
     "union-value": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
@@ -5877,6 +6523,15 @@
         "set-value": "^2.0.1"
       }
     },
+    "unique-stream": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/unique-stream/-/unique-stream-2.3.1.tgz",
+      "integrity": "sha512-2nY4TnBE70yoxHkDli7DMazpWiP7xMdCYqU2nBRO0UB+ZpEkGsSija7MvmvnZFUeC+mrgiUfcHSr3LmRFIg4+A==",
+      "requires": {
+        "json-stable-stringify-without-jsonify": "^1.0.1",
+        "through2-filter": "^3.0.0"
+      }
+    },
     "universalify": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-1.0.0.tgz",
@@ -5947,17 +6602,21 @@
       "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==",
       "dev": true
     },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+    },
     "utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
     "uuid": {
-      "version": "8.3.1",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.1.tgz",
-      "integrity": "sha512-FOmRr+FmWEIG8uhZv6C2bTgEVXsHk08kE7mPlrBbEe+c3r9pjceVPgupIfNIhc4yx55H69OXANrUaSuu9eInKg==",
-      "dev": true,
-      "optional": true
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.0.tgz",
+      "integrity": "sha512-fX6Z5o4m6XsXBdli9g7DtWgAx+osMsRRZFKma1mIUsLCz6vRvv+pz5VNbyu9UEDzpMWulZfvpgb/cmDXVulYFQ==",
+      "dev": true
     },
     "v8-to-istanbul": {
       "version": "6.0.1",
@@ -6114,8 +6773,7 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "write-file-atomic": {
       "version": "3.0.3",
@@ -6146,6 +6804,11 @@
       "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
       "dev": true
     },
+    "xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+    },
     "y18n": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
@@ -6182,4 +6845,4 @@
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 08600517..c45599f9 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@open-rpc/schema-utils-js": "^1.14.0",
+    "async-mqtt": "^2.6.1",
     "body-parser": "^1.19.0",
     "connect": "^3.7.0",
     "cors": "^2.8.5",
@@ -46,6 +47,7 @@
     "@types/node-fetch": "^2.5.7",
     "@types/node-ipc": "^9.1.3",
     "@types/ws": "^7.2.6",
+    "aedes": "^0.42.6",
     "jest": "^26.1.0",
     "lodash": "^4.17.19",
     "node-fetch": "^2.6.0",
diff --git a/src/transports/index.ts b/src/transports/index.ts
index de79e3a3..12211d8a 100644
--- a/src/transports/index.ts
+++ b/src/transports/index.ts
@@ -3,7 +3,7 @@ import HTTPTransport, { HTTPServerTransportOptions } from "./http";
 import HTTPSTransport, { HTTPSServerTransportOptions } from "./https";
 import IPCTransport, { IPCServerTransportOptions } from "./ipc";
 
-export type TransportNames = "IPCTransport" | "HTTPTransport" | "HTTPSTransport" | "WebSocketTransport";
+export type TransportNames = "IPCTransport" | "HTTPTransport" | "HTTPSTransport" | "WebSocketTransport" | "MQTTServerTransport";
 
 export type TransportClasses = WebSocketTransport |
   HTTPTransport |
diff --git a/src/transports/mqtt.test.ts b/src/transports/mqtt.test.ts
new file mode 100644
index 00000000..1d7e96a0
--- /dev/null
+++ b/src/transports/mqtt.test.ts
@@ -0,0 +1,50 @@
+import examples from "@open-rpc/examples";
+import { parseOpenRPCDocument } from "@open-rpc/schema-utils-js";
+import { Router } from "../router";
+import MQTTTransport, { MQTTServerTransportOptions } from "./mqtt";
+import AsyncMQTT from "async-mqtt";
+import Aedes from "aedes";
+import Net from "net";
+
+describe('mqtt transport', () => {
+  const mqttBroker = Net.createServer(Aedes().handle);
+  const mqttOptions = {
+    protocol: "tcp",
+    host: "localhost",
+    port: 1883,
+    inTopic: "inTopic",
+    outTopic: "outTopic"
+  } as MQTTServerTransportOptions
+
+  it("can answer to simple JSON-RPC", async (done) => {
+    const simpleMathExample = await parseOpenRPCDocument(examples.simpleMath);
+    const transport = new MQTTTransport(mqttOptions);
+
+    const router = new Router(simpleMathExample, { mockMode: true });
+
+    transport.addRouter(router);
+    transport.start();
+    const uri = `${mqttOptions.protocol}://${mqttOptions.host}:${mqttOptions.port}`;
+    const mqttClient = await AsyncMQTT.connectAsync(uri)
+
+    mqttClient.subscribe(mqttOptions.outTopic);
+
+    const messageHandler = async (topic: string, payload: Buffer) => {
+      const response = JSON.parse(payload.toString());
+      mqttClient.off('message', messageHandler);
+      await transport.stop();
+      await mqttClient.end();
+      expect(response.result).toBe(4);
+      done();
+    }
+
+    mqttClient.on('message', messageHandler);
+
+    await mqttClient.publish(mqttOptions.inTopic, JSON.stringify({
+      id: "0",
+      jsonrpc: "2.0",
+      method: "addition",
+      params: [2, 2],
+    }));
+  })
+});
diff --git a/src/transports/mqtt.ts b/src/transports/mqtt.ts
new file mode 100644
index 00000000..8577eea3
--- /dev/null
+++ b/src/transports/mqtt.ts
@@ -0,0 +1,107 @@
+import ServerTransport, { JSONRPCRequest } from "./server-transport";
+import Aedes from "aedes";
+import tls from "tls";
+import net from "net";
+
+export interface MQTTServerTransportOptions {
+  inTopic: string;
+  outTopic: string;
+  host: string;
+  protocol: "tcp";
+  port: number | string;
+  /*
+   * Use filename of cert / key file.
+   */
+  tls?: {
+    key: string;
+    cert: string;
+  };
+}
+
+export default class MQTTServerTransport extends ServerTransport {
+  private options: MQTTServerTransportOptions;
+  private aedes: any;
+  public server: any;
+
+  constructor(options: MQTTServerTransportOptions) {
+    super();
+    this.options = { ...options };
+
+    this.aedes = Aedes();
+
+    switch (this.options.protocol) {
+      case "tcp":
+        this.server = net.createServer(this.aedes.handle);
+        break;
+    }
+
+    this.aedes.on("publish", (packet: any, client: any) => {
+      if (packet.topic !== "inTopic") { return; }
+
+      const { payload } = packet;
+      const parsed = payload.toString();
+      let jsonrpcRequest;
+
+      try {
+        jsonrpcRequest = JSON.parse(parsed);
+      } catch (e) {
+        throw e;
+      }
+
+      this.mqttRouterHandler(jsonrpcRequest, (v: string) => {
+        client.publish({
+          topic: "outTopic",
+          payload: Buffer.from(v),
+        }, (e: Error) => {
+          if (e) { throw e; }
+        });
+      });
+    });
+  }
+
+  public async start(): Promise<void> {
+    this.server.listen(this.options.port);
+  }
+
+  public stop(): Promise<void> {
+    return new Promise((resolve) => {
+      this.aedes.close(() => {
+        this.server.close();
+        resolve();
+      });
+    });
+  }
+
+  private publishMessageHandler(packet: any, client: any) {
+    if (packet.topic !== "inTopic") { return; }
+
+    const { payload } = packet;
+    const parsed = payload.toString();
+    let jsonrpcRequest;
+
+    try {
+      jsonrpcRequest = JSON.parse(parsed);
+    } catch (e) {
+      throw e;
+    }
+
+    this.mqttRouterHandler(jsonrpcRequest, (v: string) => {
+      client.publish({
+        topic: "outTopic",
+        payload: Buffer.from(v),
+      }, (e: Error) => {
+        if (e) { throw e; }
+      });
+    });
+  }
+
+  private async mqttRouterHandler(payload: any, respondWith: any): Promise<void> {
+    let result = null;
+    if (payload instanceof Array) {
+      result = await Promise.all(payload.map((r: JSONRPCRequest) => super.routerHandler(r)));
+    } else {
+      result = await super.routerHandler(payload);
+    }
+    return respondWith(JSON.stringify(result));
+  }
+}