Fix json, handle routes response

src/js/components/root.js

@@ -69,13 +69,13 @@ class RoutePlanner extends Component {
   constructor(props) {
     super(props);
     this.state = {
-      fromStation: null,
-      toStation: null,
+      fromStation: "",
+      toStation: "",
     };
   }
 
   static getDerivedStateFromProps(props, state) {
-    if (state.fromStation === null && props.stations && props.stations[0]) {
+    if (state.fromStation === "" && props.stations && props.stations[0]) {
       const abbr = props.stations[0].abbr;
       return { fromStation: abbr, toStation: abbr};
     }
@@ -109,18 +109,15 @@ class RoutePlanner extends Component {
   }
 
   renderStationForm() {
-    let initialState = null;
-    if (this.props.stations && this.props.stations[0]) {
-      initialState = this.props.stations[0].abbr;
-    }
+    const receivedStations = this.props.stations;
     return (<form name="bartSearch" onSubmit={this.stationSearch.bind(this)}>
       From:
-      <select disabled={!initialState} name="fromStation" value={this.state.fromStation || initialState} onChange={this.changeStation.bind(this)}>
+      <select disabled={!receivedStations} name="fromStation" value={this.state.fromStation} onChange={this.changeStation.bind(this)}>
         { this.renderStationOptions() }
       </select>
       <br/>
       To:
-      <select disabled={!initialState} name="toStation" value={this.state.toStation || initialState} onChange={this.changeStation.bind(this)}>
+      <select disabled={!receivedStations} name="toStation" value={this.state.toStation} onChange={this.changeStation.bind(this)}>
         { this.renderStationOptions() }
       </select>
       <input type="submit" value="Search"/>

src/js/subscription.js

@@ -20,6 +20,10 @@ export class Subscription {
        this.handleError.bind(this));
     */
 
+     api.bind("/routes", "PUT", api.authTokens.ship, "bartinfo",
+       this.handleEvent.bind(this),
+       this.handleError.bind(this));
+
      api.bind("/elevators", "PUT", api.authTokens.ship, "bartinfo",
        this.handleEvent.bind(this),
        this.handleError.bind(this));

urbit/app/bartinfo.hoon

@@ -83,6 +83,8 @@
         =/  req  bart-api-elevator-status:cc
         [%pass /elevators %arvo %i %request req out]
       [~[elevator-status-request] this]
+    ?:  ?=([%routes *] path)
+      [[~] this]
     ?:  ?=([%http-response *] path)
       `this
     ?.  =(/ path)
@@ -192,11 +194,12 @@
   (with-json-handler response handler)
 ::
 ++  poke-handle-json
-  |=  jon=json 
+  |=  jon=json
   ^-  (list card)
   ~&  jon
-  [~]
-::  
+  =/  update=json  *json
+  [%give %fact ~[/routes] %json !>(update)]~
+::
 ++  poke-handle-http-request
   |=  =inbound-request:eyre
   ^-  simple-payload:http