javascript - Display results from object in JSX

I am trying to display results from an object in JSX. I have a api request in the ponentWillMount() method. This returns an object like this

Object {Name: "testname", Surname: "testsurname", IdNumber: "9008067986743", Email: "[email protected]", Mobile: "+263 73 359 432"}

Now I need to display for eg. the Email in the JSX below

  render(){
  return (
    <Container>
      <Header />
      <Content>
        <Card>  
          <CardItem>             
            <Left>
              <Thumbnail source={{uri: '.png'}} />
              <Body>
                <Text>NEED EMAIL HERE</Text>
              </Body>
            </Left>
          </CardItem>
        </Card>            
      </Content>
    </Container>
  );
}

Please assist me with this, thank you

I am trying to display results from an object in JSX. I have a api request in the ponentWillMount() method. This returns an object like this

Object {Name: "testname", Surname: "testsurname", IdNumber: "9008067986743", Email: "[email protected]", Mobile: "+263 73 359 432"}

Now I need to display for eg. the Email in the JSX below

  render(){
  return (
    <Container>
      <Header />
      <Content>
        <Card>  
          <CardItem>             
            <Left>
              <Thumbnail source={{uri: 'https://openclipart/image/2400px/svg_to_png/177482/ProfilePlaceholderSuit.png'}} />
              <Body>
                <Text>NEED EMAIL HERE</Text>
              </Body>
            </Left>
          </CardItem>
        </Card>            
      </Content>
    </Container>
  );
}

Please assist me with this, thank you

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4 Answers 4

Sorted by: Reset to default 2

After your API call, just put the response to the state, and plot it in your render method

constructor(props){
   super(props);
   this.state = { myObject: {} };
}

ponentDidMount(){
  //your API request here
  .then(response => response.json().then(result => {
     this.setState({ myObject: result });
  }))
  .catch((err) => { throw err; });
}

render(){
  return (
    <Container>
      <Header />
      <Content>
        <Card>  
          <CardItem>             
            <Left>
              <Thumbnail source={{uri: 'https://openclipart/image/2400px/svg_to_png/177482/ProfilePlaceholderSuit.png'}} />
              <Body>
                <Text>Email:</Text>
                <Text>{this.state.myObject.Email}</Text>
                <Text>Name:</Text>
                <Text>{this.state.myObject.Name}</Text>
                <Text>Surname:</Text>
                <Text>{this.state.myObject.Surname}</Text>
                <Text>ID Number:</Text>
                <Text>{this.state.myObject.IdNumber}</Text>
              </Body>
            </Left>
          </CardItem>
        </Card>            
      </Content>
    </Container>
  );
}

You need to set the data in your state initially to null, call API in ponentWillMount and update state with the API response.

In following code initially state would be null so render function would return null. Now after API promise is pleted your state would be updated by setState and your render function would be called again displaying your API data.

class Example extends React.Component {
  state = {
    data: null
  }

  ponentWillMount () {
    fetch(//your endpoint)
    .then((data) => {
      this.setState({data})
    })
    .catch((error) => {
      console.warn(error);
    })
  }

  render () {
    if (!this.state.data) return null;
    return (
      <div>
        <span>{this.state.data.email}</span>
      </div>
    )
  }
}

let requestedObject = {Name: "testname", Surname: "testsurname", IdNumber: "9008067986743", Email: "[email protected]", Mobile: "+263 73 359 432"}   

 render(){
      return (
        <Container>
          <Header />
          <Content>
            <Card>  
              <CardItem>             
                <Left>
                  <Thumbnail source={{uri: 'https://openclipart/image/2400px/svg_to_png/177482/ProfilePlaceholderSuit.png'}} />
                  <Body>
                    <Text>{ requestedObject.email }</Text>
                  </Body>
                </Left>
              </CardItem>
            </Card>            
          </Content>
        </Container>
      );
    }

Whenever you write javascript in JSX(between tags like <Text> </Text>) you need to put that javascript code in curly braces.

Assuming that you have your object in this.props.info. You can do:

      render(){
        const { Email, Surname, Name } = this.props.info;
          return (
            <Container>
              <Header />
              <Content>
                <Card>  
                  <CardItem>             
                    <Left>
                      <Thumbnail source={{uri: 'https://openclipart/image/2400px/svg_to_png/177482/ProfilePlaceholderSuit.png'}} />
                      <Body>
                        <Text>NEED EMAIL HERE</Text>
                        <Text>{Name}</Text>
                        <Text>{Surname}</Text>
                        <Text>{Email}</Text>
                      </Body>
                    </Left>
                  </CardItem>
                </Card>            
              </Content>
            </Container>
          );
        }

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4 Answers 4

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