一段时间后如何中止async-await函数? [英] How can I abort an async-await function after a certain time?

问题描述

例如，以下是一个异步函数:

For example, the following is an async function:

async function encryptPwd() {
  const salt = await bcrypt.genSalt(5);
  const encryptedPwd = await bcrypt.hash(password, salt);
  return encryptedPwd;
}

如果服务器滞后很多，我想中止此活动并返回错误.如何将超时设置为10秒(例如)?

If the server is lagging a lot, I want to abort this activity and return an error. How can I set a timeout for like 10 sec (for example)?

推荐答案

您可以将哈希函数包装在另一个Promise中.

You could wrap the hash function in another promise.

function hashWithTimeout(password, salt, timeout) {
    return new Promise(function(resolve, reject) {
        bcrypt.hash(password, salt).then(resolve, reject);
        setTimeout(reject, timeout);
    });
}


const encryptedPwd = await hashWithTimeout(password, salt, 10 * 1000);

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