Sending data to an imported module in React Native - firebase

Question

I have a module called Chat.js that imports Fire.js in order to send data (message comes into Chat.js, and Fire.js handles storage).
I have a recipient's user ID that is only currently available in Chat.js, but it is important to get to Fire.js in order to store appropriately.
I removed some info for brevity, this is my current Chat.js:
import Fire from './Fire';
class Chat extends React.Component<Props> {
state = {
messages: [],
};
get user() {
return {
name: this.props.navigation.state.params.name,
_id: Fire.shared.uid,
};
}
render() {
return (
<GiftedChat
messages={this.state.messages}
onSend={Fire.shared.send}
user={this.user}
/>
);
}
componentDidMount() {
Fire.shared.on(message =>
this.setState(previousState => ({
messages: GiftedChat.append(previousState.messages, message),
}))
);
}
componentWillUnmount() {
Fire.shared.off();
}
}
export default Chat;
And this is my current Fire.js:
import firebase from 'react-native-firebase';
class Fire {
constructor() {
}
get ref() {
var recipient = 'recipientId'
return firebase.database().ref('messages/' + this.uid + '/' + recipient);
}
parse = snapshot => {
const { timestamp: numberStamp, text, user } = snapshot.val();
const { key: _id } = snapshot;
const timestamp = new Date(numberStamp);
const message = {
_id,
timestamp,
text,
user,
};
return message;
};
on = callback =>
this.ref
.limitToLast(20)
.on('child_added', snapshot => callback(this.parse(snapshot)));
// send the message to the Backend
send = messages => {
for (let i = 0; i < messages.length; i++) {
const { text, user } = messages[i];
const message = {
text,
user,
timestamp: this.timestamp,
};
this.append(message);
}
};
append = message => this.ref.push(message);
// close the connection to the Backend
off() {
this.ref.off();
}
}
Fire.shared = new Fire();
export default Fire;
I currently need to get the recipient ID, which is available in chat.js under
this.props.navigation.state.params.uid
Into the Fire.js lines:
get ref()
{
var recipient = 'recipientId'
I can't seem to get this uid into get ref()

Answer 1

Use getter and setters in Fire.js.
In Fire.js
setRecipient (id){
this.recipientId = id;
}
get getRecipientId () {
return this.recipientId;
}
And then call Fire.setRecipient(yourId) in Chat.js.