# call

You can use `call` to execute any async action within your test spec. It accepts promises and stops the execution until the promise has been resolved.

info

With WebdriverIO deprecating synchronous usage (see [RFC](https://github.com/webdriverio/webdriverio/discussions/6702)) this command is not very useful anymore.

## Usage[​](#usage "Direct link to Usage")

```
await browser.call(callback)
```

## Parameters[​](#parameters "Direct link to Parameters")

| Name       | Type       | Details               |
| ---------- | ---------- | --------------------- |
| `callback` | `Function` | function to be called |

## Example[​](#example "Direct link to Example")

call.js

```
it('some testing here', async () => {
    await browser.url('http://google.com')
    // make an asynchronous call using any 3rd party library supporting promises
    // e.g. call to backend or db to inject fixture data
    await browser.call(() => {
        return somePromiseLibrary.someMethod().then(() => {
            // ...
        })
    })

    // example for async call to 3rd party library that doesn't support promises
    const result = await browser.call(() => {
        return new Promise((resolve, reject) => {
            someOtherNodeLibrary.someMethod(param1, (err, res) => {
                if (err) {
                    return reject(err)
                }
                resolve(res)
            })
        })
    })
});
```