TTN: add payload converter code for PutsReq.com http endpoint

client/TTN/putsreq.com.js

@@ -0,0 +1,18 @@
+const input = JSON.parse(request.body);
+
+var output = {};
+
+output    = input.payload_fields;
+output.sf = Number(input.metadata.data_rate.split('BW')[0].substring(2));
+output.bw = Number(input.metadata.data_rate.split('BW')[1]);
+output.gtw_count = Number(input.metadata.gateways.length);
+
+for (i = 0; i < input.metadata.gateways.length; i++) {
+  output["gw_" + input.metadata.gateways[i].gtw_id + "_rssi"] = input.metadata.gateways[i].rssi;
+  output["gw_" + input.metadata.gateways[i].gtw_id + "_snr"]  = input.metadata.gateways[i].snr;
+}
+
+const URL = "https://swarm.hiveeyes.org/api/" + input.dev_id.replace(/-/g, '/') + "/data";
+
+request.body = output;
+request.forwardTo = URL;