Cant cancel Axios post request via CancelToken

user_6947248 0
Viewed 45795

This code cancel GET requests but cant abort POST calls.
If i send GET requests first and i dont cancel them via abortAll method,they just finish by themselves this token cancel by itself and doesnt work on next requests? What am i missing? Thanks,John

import axios from 'axios'
class RequestHandler {

 constructor(){
  this.cancelToken = axios.CancelToken;
  this.source = this.cancelToken.source();
 }

 get(url,callback){

  axios.get(url,{
   cancelToken:this.source.token,
  }).then(function(response){

        callback(response.data);

    }).catch(function(err){

        console.log(err);

    })

 }

post(url,callbackOnSuccess,callbackOnFail){
 axios.post(url,{

        cancelToken:this.source.token,

    }).then(function(response){

        callbackOnSuccess(response.data);

    }).catch(function(err){

        callbackOnFail()

    })
}

abortAll(){

 this.source.cancel();
    // regenerate cancelToken
 this.source = this.cancelToken.source();

}

}
axios javascript
5 Answers

Cancel previous Axios request on new request with cancelToken and source.

https://github.com/axios/axios#cancellation

 // cancelToken and source declaration

 const CancelToken = axios.CancelToken;
 let source = CancelToken.source();

 source && source.cancel('Operation canceled due to new request.');

 // save the new request for cancellation
 source = axios.CancelToken.source();

 axios.post(url, postData, {
     cancelToken: source.token
 })
 .then((response)=>{
     return response && response.data.payload);
 })
 .catch((error)=>{
     return error;
 });
user_104886440

Using inside componentDidMount lifecycle hook: 

useEffect(() => {
const ourRequest = Axios.CancelToken.source() // <-- 1st step

const fetchPost = async () => {
  try {
    const response = await Axios.get(`endpointURL`, {
      cancelToken: ourRequest.token, // <-- 2nd step
    })
    } catch (err) {
    console.log('There was a problem or request was cancelled.')
  }
}
fetchPost()

return () => {
  ourRequest.cancel() // <-- 3rd step
}
}, [])

Note: For POST request, pass cancelToken as 3rd argument

Axios.post(`endpointURL`, {data}, {
 cancelToken: ourRequest.token, // 2nd step
})
user_76974250

Maybe I'm wrong, but each request should have a unique source object.

user_84281090

Simplest implementation using ReactJs

import axios from 'axios';

class MyComponent extends Component {
  constructor (props) {
    super(props)

    this.state = {
      data: []
    }
  }

  componentDidMount () {
    this.axiosCancelSource = axios.CancelToken.source()

    axios
      .get('data.json', { cancelToken: this.axiosCancelSource.token })
      .then(response => {
        this.setState({
          data: response.data.posts
        })
      })
      .catch(err => console.log(err))
  }

  componentWillUnmount () {
    console.log('unmount component')
    this.axiosCancelSource.cancel('Component unmounted.')
  }

  render () {
    const { data } = this.state

    return (
     <div>
          {data.items.map((item, i) => {
            return <div>{item.name}</div>
          })}
      </div>
    )
  }
}
user_83006200
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