React Redux showing data in table from API - reactjs

Question

Currently, my application showing initialState data in the table and those data are hardcoded. I want to show my API fetched data in the table.
this is my postReducer.js file:
var initialState = {
employees: [
{ id: 1, name: 'jhon', age: '23'},
{ id: 2, name: 'doe', age: '24'}
]
};
var postReducer = (state = initialState, action) => {
switch (action.type) {
case 'ADD_POST':
return {
...state,
employees: [...state.employees, action.data],
};
case 'EDIT_POST':
return {
...state,
employees: state.employees.map(emp => emp.id === action.data.id ? action.data : emp)
};
case 'DELETE_POST':
console.log(action.data.id)
return {
...state,
employees: [...state.employees.filter((post)=>post.id !== action.data.id)],
};
default:
return state;
}
};
export default postReducer;
and this is my table.js file
import React, {Fragment} from "react";
import { connect } from "react-redux";
class Table extends React.Component {
onEdit = (item) => { //Use arrow function to bind `this`
this.props.selectedData(item);
}
onDelete = (id) => {
const data = {
id,
}
this.props.dispatch({ type: 'DELETE_POST', data });
}
render() {
return (
<Fragment>
<thead>
<tr>
<th scope="col">Name</th>
<th scope="col">Age</th>
<th scope="col">Edit</th>
<th>Delete</th>
</tr>
</thead>
<tbody>
{this.props.employees.map((item, index) => (
<tr key={index}>
<td>{item.name}</td>
<td>{item.age}</td>
<td>
<button
type="button"
onClick={() => this.onEdit(item)}>EDIT
</button>
<button
onClick={ () => this.onDelete(item.id) }>DELETE
</button>
</td>
</tr>
))}
</tbody>
</Fragment>
);
}
}
const mapStateToProps = (state) => ({ employees: state.employees });
export default connect(mapStateToProps)(Table);
and this my form.js file
import React, { Fragment } from "react"
import { connect } from 'react-redux'
const axios = require('axios');
class Form extends React.Component {
constructor(props) {
super(props);
this.state = {
id: this.props.selectedData.id,
name: this.props.selectedData.name,
age: this.props.selectedData.age,
};
this.onHandleChange = this.onHandleChange.bind(this);
this.submit = this.submit.bind(this);
}
submit(event) {
const data = {
name: this.state.name,
age: this.state.age,
email: this.state.email
};
if (this.props.isEdit) {
data.id = this.props.selectedData.id;
console.log('edit', data);
this.props.dispatch({ type: 'EDIT_POST', data })
} else {
// generate id here for new emplyoee
this.props.dispatch({ type: 'ADD_POST', data })
}
}
onHandleChange(event) {
this.setState({
[event.target.name]: event.target.value
});
}
componentDidUpdate(prevProps) {
if (prevProps.selectedData.age !== this.props.selectedData.age) { //Check on email, because email is unique
this.setState({ name: this.props.selectedData.name, age: this.props.selectedData.age })
}
}
render() {
return (
<form>
<div className="form-group">
<input onChange={(event) => this.onHandleChange(event)} value={this.state.name} name="name" type="text" />
</div>
<div className="form-group">
<input onChange={(event) => this.onHandleChange(event)} value={this.state.age} name="age" type="number" />
</div>
<button onClick={(event) => this.submit(event)} type="button">
{this.props.isEdit ? 'Update' : 'SAVE'}
</button>
</form>
);
}
}
export default connect(null)(Form);
I think i need to work on table.js file to implement, i tried with componentDidmount but i failed to implement is.
I am using Axios for http request
this is the request snippet with api:
axios.get('http://127.0.0.1:8000/api/v1/employee/')
.then(function (response) {
// handle success
})
.catch(function (error) {
// handle error
})
.finally(function () {
});
I am not getting how to successfully implement this like when i visit the page, i should see the table with data that come from api endpoint.
Can anyone help me regarding this?

Answer 1

In your Table component, you can make use of componentDidMount for your API call,
componentDidMount(){
axios.get('http://127.0.0.1:8000/api/v1/employee/')
.then((response) => { //Use arrow function to auto bind `this`
// handle success
this.props.dispatch({ type: 'ADD_POST', response.data }) //considering response.data is the correct array
})
.catch(function (error) {
// handle error
})
.finally(function () {
});
}