Update messages from api every second

I am using react-native gifted-chat for my chat interface in my react native mobile application, in my component will mount I get the messages for the user from an api and render it in the Gifted chat interface, any message sent in gifted chat is also sent to an api, which saves the message in the db. Now I want to update the messages state every second so that when the other user also sends a message the current user it updates, I have tried using set interval but the emulator always hangs, please what will be the most efficient way to update the messages array other than what I have done

 constructor(props) {
    super(props);
    this.state = {
        messages: []
    };
    this.checker = this.checker.bind(this);
};
checker(){
    const {params} = this.props.navigation.state;
           this.setState({loading: true});
           var bodyParameters = {
               id: params.id,
               receiver_id: params.receiver_id
           }
          /*    var config = {
               headers: {'Authorization': "Bearer " + this.state.token}
          };*/
          axios.post(
              'http://10.0.2.2:8000/api/messages',
              bodyParameters,
          //      config
          ).then((response) => {
           this.setState({loading: false});
           console.log(response);   
           var len = response.data.success?response.data.success.length:null;
           for (let i = 0; i < len; i++) {
               let row = response.data.success[i];
               console.log(row.id, row.user1.id);console.log("chat")
               this.setState(prevState => ({
                   messages: [...prevState.messages, {_id: row.id, text: row.message, 
                       createdAt: row.created_at, user: {_id: row.user1.id,name: row.user1.first_name+' '+row.user1.last_name}}],
               }), console.log(this.state.messages));
               console.log("checker");
           };
          }).catch((error) => {
           this.setState({loading: false}); 
                   console.log(error); 
                  });      
}
componentDidMount(){
this.interval = setInterval(() => this.checker(), 1000);
}
componentWillUnmount() {
        clearInterval(this.interval);
      }
componentWillMount() {
    const {params} = this.props.navigation.state;
 /*   var pusher = new Pusher('1363556f717d953dcf86', {
        cluster: 'mt1',
        forceTLS: true
      });
      var channel = pusher.subscribe('private-messages.'+ params.id);
      channel.bind('MessageSent', function(data) {
        console.log(data);
      });*/
        this.setState({loading: true});
        var bodyParameters = {
            id: params.id,
            receiver_id: params.receiver_id
        }
    /*    var config = {
            headers: {'Authorization': "Bearer " + this.state.token}
       };*/
       axios.post(
           'http://10.0.2.2:8000/api/messages',
           bodyParameters,
     //      config
       ).then((response) => {
        this.setState({loading: false});
        console.log(response);   
        var len = response.data.success?response.data.success.length:null;
        for (let i = 0; i < len; i++) {
            let row = response.data.success[i];
            console.log(row.id, row.user1.id);console.log("chat")
            this.setState(prevState => ({
                messages: [...prevState.messages, {_id: row.id, text: row.message, 
                    createdAt: row.created_at, user: {_id: row.user1.id,name: row.user1.first_name+' '+row.user1.last_name}}],
            }), console.log(this.state.messages));
            console.log("contjii");
        };
       }).catch((error) => {
        this.setState({loading: false});
            Alert.alert(
                'Error',
                 'Internal Server Error, please try again later',
                [
                  {text: 'OK'},
                ],  );    
                console.log(error); 
               });    
 /*   this.setState({
      messages: [
        {
          _id: 1,
          text: 'Hello developer',
          createdAt: new Date(),
          user: {
            _id: 1,
            name: 'React Native',
            avatar: 'https://placeimg.com/140/140/any',
          },
      //    image: 'https://facebook.github.io/react/img/logo_og.png',
          // additional custom parameters
          sent : true,
          received : true,
        },
      ],
    })*/
  }

  onSend(messages = []) {
      console.log(messages);
      const {params} = this.props.navigation.state;
      messages[0].sent = true;
    var bodyParameters = {
        id: params.id,
        receiver_id: params.receiver_id,
        message: messages[0].text
    }
/*    var config = {
        headers: {'Authorization': "Bearer " + this.state.token}
   };*/
   axios.post(
       'http://10.0.2.2:8000/api/sendMessage',
       bodyParameters,
 //      config
   ).then((response) => {
    this.setState({loading: false});
    console.log(response);   

   }).catch((error) => {
    this.setState({loading: false});
        Alert.alert(
            'Error',
             'Internal Server Error, please try again later',
            [
              {text: 'OK'},
            ],  );    
            console.log(error); 
           }); 
      this.setState(previousState => ({
      messages: GiftedChat.append(previousState.messages, messages),
    }));  
  }
render() {
    const {params} = this.props.navigation.state;
    return (
<GiftedChat
        messages={this.state.messages}
       //  inverted={false}
        onSend={messages => this.onSend(messages)}
        user={{
          _id: params.id,
        }}
      />
 );
 }