axios wrapper that provides an advanced cancellation api
npm install cp-axios
!npm
!npm bundle size
!David
cpAxios is a simple axios wrapper that provides an advanced cancellation api.
This library supports three types of the cancellation API that could be used simultaneously:
- Axios cancelableToken
- AbortController signal
- CPromise promise cancellation API
In addition, since cpAxios return a custom promise instead of the native, you get some powers of CPromise:
- concurrency limiting fot creating request queues
- progress capturing
- promise timeouts
Starting from version 0.1.12 the package imports peer dependencies instead of built-in.
So, you should install c-promise2 and axios packages manually using the following command:
``bash`
$ npm install cp-axios
`bash`
$ yarn add cp-axios
module global export- cpAxios
#### Live Example
#### Request aborting using CPromise cancellation API:
``javascript
const cpAxios= require('cp-axios');
const url= 'https://run.mocky.io/v3/753aa609-65ae-4109-8f83-9cfe365290f0?mocky-delay=5s';
const chain = cpAxios(url)
.timeout(5000)
.then(response => {
console.log(Done: ${JSON.stringify(response.data)})Request failed: ${err}
}, err => {
console.warn()
});
setTimeout(() => chain.cancel(), 500);
``
#### Request aborting using AbortController signal:
``javascript
const cpAxios= require('cp-axios');
const CPromise= require('c-promise2');
const url= 'https://run.mocky.io/v3/753aa609-65ae-4109-8f83-9cfe365290f0?mocky-delay=5s';
// you could use any other AbortController implementation, but CPromise already provides it
const abortController = new CPromise.AbortController();
const {signal} = abortController;
cpAxios(url, {signal})
.timeout(5000)
.then(response => {
console.log(Done: ${JSON.stringify(response.data)})Request failed: ${err}
}, err => {
console.warn()
});
setTimeout(() => abortController.abort(), 500);
``
#### Request aborting using Axios cancelToken:
``javascriptDone: ${JSON.stringify(response.data)}
const cpAxios= require('cp-axios');
const url= 'https://run.mocky.io/v3/753aa609-65ae-4109-8f83-9cfe365290f0?mocky-delay=5s';
const source = cpAxios.CancelToken.source();
cpAxios(url, {cancelToken: source.token})
.timeout(5000)
.then(response => {
console.log()Request failed: ${err}
}, err => {
console.warn()
});
setTimeout(() => source.cancel(), 500);
``
#### Using generators as async functions:
``javascript
const cpAxios= require('cp-axios');
const CPromise= require('c-promise2');
const url= 'https://run.mocky.io/v3/753aa609-65ae-4109-8f83-9cfe365290f0?mocky-delay=5s';
const chain= CPromise.run(function*(){
try{
const response= yield cpAxios(url).timeout(5000);
console.log(Done: , response.data)Error:
}catch(err){
console.log(, err)
}
});
setTimeout(()=> chain.cancel(), 1000); // abort the request after 1000ms
``
#### Abortable concurrent requests
``javascript
const cpAxios= require('cp-axios');
const CPromise = require('c-promise2');
// same as cpAxios.all([...])
const chain= CPromise.all([
cpAxios("https://run.mocky.io/v3/753aa609-65ae-4109-8f83-9cfe365290f0?mocky-delay=3s"),
cpAxios("https://run.mocky.io/v3/30a97b24-ed0e-46e8-9f78-8f954aead2f8?mocky-delay=5s")
]).timeout(10000).then(responses=> {
console.log(Results :, responses[0].data, responses[1].data);We got an error: ${err}
}, function (err) {
console.warn();
});
// other request will be aborted if one fails
setTimeout(()=> chain.cancel(), 1000); // abort the requests after 1000ms
``
Making a request queue using mapper function with concurrency limit and progress capturing
Live Demo:
``javascript
import { CPromise } from "c-promise2";
import cpAxios from "cp-axios";
const promise = CPromise.all(
[
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=1",
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=2",
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=3",
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=4",
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=5",
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=6",
"https://run.mocky.io/v3/7b038025-fc5f-4564-90eb-4373f0721822?mocky-delay=2s&x=7"
],
{
mapper: (url) => {
console.log(Request [${url}]);Progress: ${(p * 100).toFixed(1)}
return cpAxios(url);
},
concurrency: 2
}
)
.innerWeight(7)
.progress((p) => console.log())Done:
.then(
(v) => console.log(, v),Failed: ${e}
(e) => console.warn()
);
// yeah, we able to cancel the entire task and abort pending network requests
//setTimeout(() => promise.cancel(), 4500);
``React usage
cpAxios can be easily used with React using the useAsyncEffect hook, which allows cancelable asynchronous functions to be executed as effects (Live Demo):
`jsx
import React from "react";
import { useAsyncEffect } from "use-async-effect2";
import cpAxios from "cp-axios";
/*
Note: the related network request will also be aborted
Check out your network console
*/
function TestComponent({ url, timeout }) {
const [cancel, done, result, err] = useAsyncEffect(
function* () {
return (yield cpAxios(url).timeout(timeout)).data;
},
{ states: true, deps: [url] }
);
return (
export default TestComponent;
`
The request will be automatically aborted when the effect is canceled / restarted.
The package exports a wrapped version of the axios instance.
See the axios documentation to get more information.
cpAxios(url, {signal, ...nativeAxiosOptions}): CPromise
Options:
- signal- the AbortController signal
- ...nativeAxiosOptions`- other options supported by axios package
Learn more about CPromise features
- cp-fetch - fetch with timeouts and promise cancellation
- c-promise2 - promise with cancellation and progress capturing support
The MIT License Copyright (c) 2020 Dmitriy Mozgovoy robotshara@gmail.com
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