# Google API Extensions for Node.js [![Release Level][releaselevelimg]][releaselevel] [![npm version][npmimg]][npm] [![Code Coverage][codecovimg]][codecov] Google API Extensions for Node.js (gax-nodejs) is a set of modules which aids the development of APIs for clients and servers based on [gRPC][grpc] and Google API conventions. Application code will rarely need to use most of the classes within this library directly, but code generated automatically from the API definition files in [Google APIs][googleapis] can use services such as page streaming and request bundling to provide a more convenient and idiomatic API surface to callers. ## Installation ```sh $ npm install google-gax ``` ## Supporting older version of Node.js This library uses [grpc-js](https://www.npmjs.com/package/@grpc/grpc-js) package for communicating with API server, and it uses HTTP/2 functionality that is only available in Node.js v8.13.0 or newer. If you need to use this library with older versions of Node.js, you need to make your code depend on a legacy gRPC library ([grpc](https://www.npmjs.com/package/grpc)) and pass the instance of gRPC to the client constructor: ```js const grpc = require('grpc'); const client = new APIClient({ grpc }); // APIClient is the client class you use, e.g. SpeechClient, etc. ``` ## Contributing Contributions to this library are always welcome and highly encouraged. See the [CONTRIBUTING][contributing] documentation for more information on how to get started. ## Details For detailed documentation of the modules in gax-nodejs, please check out the [docs][docs]. ## License BSD - See [LICENSE][license] for more information. [codecovimg]: https://codecov.io/gh/googleapis/gax-nodejs/coverage.svg?branch=master [codecov]: https://codecov.io/gh/googleapis/gax-nodejs?branch=master [contributing]: https://github.com/googleapis/gax-nodejs/blob/master/CONTRIBUTING.md [docs]: http://googleapis.github.io/gax-nodejs/ [license]: https://github.com/googleapis/gax-nodejs/blob/master/LICENSE [npmimg]: https://img.shields.io/npm/v/google-gax.svg [npm]: https://www.npmjs.org/package/google-gax [googleapis]: https://github.com/googleapis/googleapis/ [grpc]: http://grpc.io [releaselevel]: https://cloud.google.com/terms/launch-stages [releaselevelimg]: https://img.shields.io/badge/release%20level-general%20availability%20%28GA%29-brightgreen.svg?style=flat