Reactjs 如何将redux saga与异步回调函数一起使用
我想使用redux sagayield calleffect和async函数,该函数的结果是回调。(在这种情况下,但这是一般情况) 这是我想要使用的异步函数:Reactjs 如何将redux saga与异步回调函数一起使用,reactjs,redux-saga,fingerprintjs2,Reactjs,Redux Saga,Fingerprintjs2,我想使用redux sagayield calleffect和async函数,该函数的结果是回调。(在这种情况下,但这是一般情况) 这是我想要使用的异步函数: new Fingerprint2().get(function(result, components) { console.log(result) // a hash, representing your device fingerprint console.log(components) // an array of FP compon
new Fingerprint2().get(function(result, components) {
console.log(result) // a hash, representing your device fingerprint
console.log(components) // an array of FP components
})
问题是我想通过saga执行这个函数,但它总是停留在yield调用上
我尝试了很多方法:
import Fingerprint2 from 'fingerprintjs2';
const func = new Fingerprint2().get;
const res = yield call(func);
也可以这样尝试:
import Fingerprint2 from 'fingerprintjs2';
const func = new Fingerprint2().get;
const a = yield call(func, (fingerprint, result) => ({
fingerprint,
result
}));
import Fingerprint2 from 'fingerprintjs2';
let res = yield call(new Fingerprint2().get(), (fingerprint, result) => ({
fingerprint,
result
}));
就像这样:
import Fingerprint2 from 'fingerprintjs2';
const func = new Fingerprint2().get;
const a = yield call(func, (fingerprint, result) => ({
fingerprint,
result
}));
import Fingerprint2 from 'fingerprintjs2';
let res = yield call(new Fingerprint2().get(), (fingerprint, result) => ({
fingerprint,
result
}));
有人知道实现我目标的想法或方法吗
谢谢
收益
可以接受承诺
const {result, components} = yield new Promise(resolve => {
new Fingerprint2().get(function(result, components) {
resolve({result, components})
})
})
对于任何想要回答这个问题的人,有以下几种选择: 使用cps:
const { result, components } = yield cps(cb => new Fingerprint2().get((result, components) => cb(null, { result, components })))
承诺:
function* rootSaga(){
// Wrapping you function into a promise
const promise = new Promise((resolve, reject) => {
new Fingerprint2().get((result, components) => {
resolve({ result, components })
})
})
// Yield the promise And redux-saga will return the resolved value when the promise resolves
const { result, components } = yield promise
// do some stuff about result and components ...
}
信贷:redux saga github谢谢,这是一项工作,但我有一个问题:有没有一种方法可以实现这一点,而不用承诺?我尝试使用cps,但它也是堆栈。