Axios cannot allow state element to react

I am brand new to react and follow the guide. The instructor uses axioms to pull some data from the github api. Below is what it offers as a handler for the onSubmit event:

handleSubmit = (event) => {
    event.preventDefault();
  console.log('event: form submit ' + this.state.userName )
  axios.get('https://api.github.com/users/${this.state.userName}')
    .then(resp => {
        console.log(resp)
    });

}

      

However, when I run it, this.state.userName

it is not resolved and I get a 404. Is there something wrong with the code or axioms? I am using jscomplete / repl playground to work with it.

Help rate!

Below is the component code:

class Form extends React.Component {

    state = {
userName: '  ',
event: ' '
}

handleSubmit = (event) => {
    event.preventDefault();
  console.log('event: form submit ' + this.state.userName )
  axios.get('https://api.github.com/users/${this.state.userName}')
    .then(resp => {
        this.setState({event: resp})
    });
  console.log(event)
}

render() {
  return (
    <form onSubmit={this.handleSubmit}>
      <input type="text"
                    value={this.state.userName}
        onChange={(event) => this.setState({userName: event.target.value})}
                    placeholder={ this.state.username } required 
      />
      <button>Add Card</button>
    </form>
  )
}
}

      

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2 answers


you are not using ES6 template literals as you should.
on that line, you have wrapped the line in '

:
'https://api.github.com/users/${this.state.userName}'



wrap it with back check marks (') (with a tilde button)

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You should really use a constructor to initialize state variables. Use backtick ( ` ) to replace variables in a string. Also bind the function to the class using context this

. Try the following code



class Form extends React.Component {

    constructor(props) {
        super(props)
        this.state = {
            userName: '  ',
            event: ' '
        }

        this.handleSubmit = this.handleSubmit.bind(this)
    }

    handleSubmit = (event) => {
        event.preventDefault();
        console.log('event: form submit ' + this.state.userName)
        axios.get(`https://api.github.com/users/${this.state.userName}`)
            .then(resp => {
                this.setState({ event: resp })
            });
        console.log(event)
    }

    render() {
        return (
            <form onSubmit={this.handleSubmit}>
                <input type="text"
                    value={this.state.userName}
                    onChange={(event) => this.setState({ userName: event.target.value })}
                    placeholder={this.state.username} required
                />
                <button>Add Card</button>
            </form>
        )
    }
}

      

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