Question

所有重试完成后，如果console.log仍然失败，该如何处理？和console.log（如果成功），使用async-retry软件包：

    const retry = require('async-retry');

    async function updateDB(updateUser) {
        await retry(async () => {
            const res = await updateUser;
            if (/* some error after finishing all retries*/) {
                console.log('failed');
            }
            console.log('Success');
        }, {
          retries: 5
        });
    }

如何实现？

或者换句话说，只有在所有重试尝试均失败后，才能调用另一个功能（功能A ）？如果根本没有抛出功能B ，则调用它。

Answer 1

您是否尝试过以下方法：

const result = await retry(async () => {
    const res = await updateUser;
    if (/* some error after finishing all retries*/) {
        console.log('failed');
    }
    console.log('Success');
    return 'success';
}, {
    retries: 5
});
if (result != 'success') {
    console.log('all failed');
}

Answer 2

 const retry = require('async-retry');

    async function updateDB(updateUser) {
    try{ 
        const result =   await retry(async () => {
            const res = await Promise.all(updateUser).then(()=>{
              try{
                return  new Promise((resolve) => resolve('OK')),  {  retries: 5   }
              }catch(e){
                return  new Promise((resolve) => resolve('KO')),  {  retries: 5   };

              }
         });
         }
      );
    }catch(err){
        console.log('The function execution failed !')

      }

    }

Answer 3

您可以使用onRetry函数，类似这样

const retry = require('async-retry');

async function updateDB(updateUser) {
    await retry(async () => {
        const res = await test();
        console.log('Success');
    }, {
        onRetry: (err, number) => {
            console.log('attempt', number)
            if (number === 5) {
                console.log(err)
            }
        },
        retries: 5
    });
}

全部重试后，异步等待重试日志

3 个答案: