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128 lines
4.4 KiB
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128 lines
4.4 KiB
Markdown
[//]: # "This README.md file is auto-generated, all changes to this file will be lost."
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[//]: # "To regenerate it, use `python -m synthtool`."
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<img src="https://avatars2.githubusercontent.com/u/2810941?v=3&s=96" alt="Google Cloud Platform logo" title="Google Cloud Platform" align="right" height="96" width="96"/>
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# [Google Cloud Common Promisify: Node.js Client](https://github.com/googleapis/nodejs-promisify)
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[](https://cloud.google.com/terms/launch-stages)
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[](https://www.npmjs.org/package/@google-cloud/promisify)
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[](https://codecov.io/gh/googleapis/nodejs-promisify)
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A simple utility for promisifying functions and classes.
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* [Google Cloud Common Promisify Node.js Client API Reference][client-docs]
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* [github.com/googleapis/nodejs-promisify](https://github.com/googleapis/nodejs-promisify)
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Read more about the client libraries for Cloud APIs, including the older
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Google APIs Client Libraries, in [Client Libraries Explained][explained].
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[explained]: https://cloud.google.com/apis/docs/client-libraries-explained
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**Table of contents:**
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* [Quickstart](#quickstart)
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* [Installing the client library](#installing-the-client-library)
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* [Using the client library](#using-the-client-library)
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* [Samples](#samples)
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* [Versioning](#versioning)
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* [Contributing](#contributing)
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* [License](#license)
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## Quickstart
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### Installing the client library
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```bash
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npm install @google-cloud/promisify
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```
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### Using the client library
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```javascript
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const {promisify} = require('@google-cloud/promisify');
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/**
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* This is a very basic example function that accepts a callback.
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*/
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function someCallbackFunction(name, callback) {
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if (!name) {
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callback(new Error('Name is required!'));
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} else {
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callback(null, `Well hello there, ${name}!`);
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}
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}
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// let's promisify it!
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const somePromiseFunction = promisify(someCallbackFunction);
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async function quickstart() {
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// now we can just `await` the function to use it like a promisified method
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const [result] = await somePromiseFunction('nodestronaut');
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console.log(result);
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}
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quickstart();
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```
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It's unlikely you will need to install this package directly, as it will be
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installed as a dependency when you install other `@google-cloud` packages.
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## Samples
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Samples are in the [`samples/`](https://github.com/googleapis/nodejs-promisify/tree/master/samples) directory. The samples' `README.md`
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has instructions for running the samples.
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| Sample | Source Code | Try it |
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| --------------------------- | --------------------------------- | ------ |
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| Quickstart | [source code](https://github.com/googleapis/nodejs-promisify/blob/master/samples/quickstart.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-promisify&page=editor&open_in_editor=samples/quickstart.js,samples/README.md) |
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The [Google Cloud Common Promisify Node.js Client API Reference][client-docs] documentation
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also contains samples.
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## Versioning
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This library follows [Semantic Versioning](http://semver.org/).
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This library is considered to be **General Availability (GA)**. This means it
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is stable; the code surface will not change in backwards-incompatible ways
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unless absolutely necessary (e.g. because of critical security issues) or with
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an extensive deprecation period. Issues and requests against **GA** libraries
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are addressed with the highest priority.
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More Information: [Google Cloud Platform Launch Stages][launch_stages]
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[launch_stages]: https://cloud.google.com/terms/launch-stages
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## Contributing
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Contributions welcome! See the [Contributing Guide](https://github.com/googleapis/nodejs-promisify/blob/master/CONTRIBUTING.md).
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## License
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Apache Version 2.0
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See [LICENSE](https://github.com/googleapis/nodejs-promisify/blob/master/LICENSE)
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[client-docs]: https://googleapis.dev/nodejs/promisify/latest
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[shell_img]: https://gstatic.com/cloudssh/images/open-btn.png
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[projects]: https://console.cloud.google.com/project
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[billing]: https://support.google.com/cloud/answer/6293499#enable-billing
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[auth]: https://cloud.google.com/docs/authentication/getting-started
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