feat: subscribe to new observables

test/observables/src/App.js

@@ -48,7 +48,7 @@ class App extends React.Component {
     return (
       <div>
         <button onClick={this.createTrx}>Create Trx</button>
-        {escrowObservable && <EscrowObservator escrow={escrowObservable} myCustomProperty="Test" />}
+        <EscrowObservator escrow={escrowObservable} myCustomProperty="Test" />
       </div>
     );
   }

test/observables/src/EscrowObservator.js

@@ -3,6 +3,7 @@ import observe from "./observe";
 
 const Escrow = props => {
   const { escrow, myCustomProperty } = props;
+  if(!escrow) return <p>Loading...</p>;
   return (
     <ul>
       <li>

test/observables/src/observe.js

@@ -8,9 +8,9 @@ function observe(WrappedComponent) {
         subscriptions: {}
       }
 
-      componentDidMount() {
+      subscribeToProp = prop => {
-        Object.keys(this.props).forEach(prop => {
+        if(!isObservable(this.props[prop])) return;
-          if(isObservable(this.props[prop])){
+
         const subscription = this.props[prop].subscribe(
           value => {
             this.setState({
@@ -33,7 +33,9 @@ function observe(WrappedComponent) {
           }
         });
       }
-        });
+  
+      componentDidMount() {
+        Object.keys(this.props).forEach(this.subscribeToProp);
       }
   
       componentWillUnmount() {
@@ -42,6 +44,16 @@ function observe(WrappedComponent) {
         });
       }
 
+      componentDidUpdate(prevProps) {
+        Object.keys(prevProps).forEach(prop => {
+          if(!prevProps[prop] && this.props[prop]){
+            this.subscribeToProp(prop);
+          }
+        });
+
+        // TODO: check if prevProps and currProps are different, and unsubscribe from prevProp
+      }
+  
       render() {
         return <WrappedComponent {...this.props} {...this.state.observedValues} />;
       }