@chriscdn/promise-retry

Retry a function returning a rejected promise until it resolves or exceeds the maximum attempt count.

Installing

Using npm:

$ npm install @chriscdn/promise-retry

Using yarn:

$ yarn add @chriscdn/promise-retry

Example

const promiseRetry = require('@chriscdn/promise-reject')

function myFunction(attempt) {
    return new Promise((resolve, reject) => {

        // ... do something

        if (allIsFine) {
            resolve(<value>)
        } else {
            reject(<err>)
        }
    })

}

const options = {
    maxAttempts: 10,
    timeout: 0
}

// Call myFunction until a resolved promise is returned, but not more than 10 times (default is 10)
promiseRetry(attempt => myFunction(attempt), options)
    .then(value => {
        // myFunction resolved within 10 attempts
        // value is from the myFunction resolve call
    })
    .catch(err => {
        // myFunction failed to return a resolved promise within 10 attempts
        // err is the reject value from the last attempt
    })

License

MIT