# @aws-sdk/client-timestream-query
## Description
AWS SDK for JavaScript TimestreamQuery Client for Node.js, Browser and React Native.
Amazon Timestream Query
## Installing
To install the this package, simply type add or install @aws-sdk/client-timestream-query
using your favorite package manager:
- `npm install @aws-sdk/client-timestream-query`
- `yarn add @aws-sdk/client-timestream-query`
- `pnpm add @aws-sdk/client-timestream-query`
## Getting Started
### Import
The AWS SDK is modulized by clients and commands.
To send a request, you only need to import the `TimestreamQueryClient` and
the commands you need, for example `CancelQueryCommand`:
```js
// ES5 example
const { TimestreamQueryClient, CancelQueryCommand } = require("@aws-sdk/client-timestream-query");
```
```ts
// ES6+ example
import { TimestreamQueryClient, CancelQueryCommand } from "@aws-sdk/client-timestream-query";
```
### Usage
To send a request, you:
- Initiate client with configuration (e.g. credentials, region).
- Initiate command with input parameters.
- Call `send` operation on client with command object as input.
- If you are using a custom http handler, you may call `destroy()` to close open connections.
```js
// a client can be shared by different commands.
const client = new TimestreamQueryClient({ region: "REGION" });
const params = {
/** input parameters */
};
const command = new CancelQueryCommand(params);
```
#### Async/await
We recommend using [await](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/await)
operator to wait for the promise returned by send operation as follows:
```js
// async/await.
try {
const data = await client.send(command);
// process data.
} catch (error) {
// error handling.
} finally {
// finally.
}
```
Async-await is clean, concise, intuitive, easy to debug and has better error handling
as compared to using Promise chains or callbacks.
#### Promises
You can also use [Promise chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises#chaining)
to execute send operation.
```js
client.send(command).then(
(data) => {
// process data.
},
(error) => {
// error handling.
}
);
```
Promises can also be called using `.catch()` and `.finally()` as follows:
```js
client
.send(command)
.then((data) => {
// process data.
})
.catch((error) => {
// error handling.
})
.finally(() => {
// finally.
});
```
#### Callbacks
We do not recommend using callbacks because of [callback hell](http://callbackhell.com/),
but they are supported by the send operation.
```js
// callbacks.
client.send(command, (err, data) => {
// process err and data.
});
```
#### v2 compatible style
The client can also send requests using v2 compatible style.
However, it results in a bigger bundle size and may be dropped in next major version. More details in the blog post
on [modular packages in AWS SDK for JavaScript](https://aws.amazon.com/blogs/developer/modular-packages-in-aws-sdk-for-javascript/)
```ts
import * as AWS from "@aws-sdk/client-timestream-query";
const client = new AWS.TimestreamQuery({ region: "REGION" });
// async/await.
try {
const data = await client.cancelQuery(params);
// process data.
} catch (error) {
// error handling.
}
// Promises.
client
.cancelQuery(params)
.then((data) => {
// process data.
})
.catch((error) => {
// error handling.
});
// callbacks.
client.cancelQuery(params, (err, data) => {
// process err and data.
});
```
### Troubleshooting
When the service returns an exception, the error will include the exception information,
as well as response metadata (e.g. request id).
```js
try {
const data = await client.send(command);
// process data.
} catch (error) {
const { requestId, cfId, extendedRequestId } = error.$$metadata;
console.log({ requestId, cfId, extendedRequestId });
/**
* The keys within exceptions are also parsed.
* You can access them by specifying exception names:
* if (error.name === 'SomeServiceException') {
* const value = error.specialKeyInException;
* }
*/
}
```
## Getting Help
Please use these community resources for getting help.
We use the GitHub issues for tracking bugs and feature requests, but have limited bandwidth to address them.
- Visit [Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/welcome.html)
or [API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/index.html).
- Check out the blog posts tagged with [`aws-sdk-js`](https://aws.amazon.com/blogs/developer/tag/aws-sdk-js/)
on AWS Developer Blog.
- Ask a question on [StackOverflow](https://stackoverflow.com/questions/tagged/aws-sdk-js) and tag it with `aws-sdk-js`.
- Join the AWS JavaScript community on [gitter](https://gitter.im/aws/aws-sdk-js-v3).
- If it turns out that you may have found a bug, please [open an issue](https://github.com/aws/aws-sdk-js-v3/issues/new/choose).
To test your universal JavaScript code in Node.js, browser and react-native environments,
visit our [code samples repo](https://github.com/aws-samples/aws-sdk-js-tests).
## Contributing
This client code is generated automatically. Any modifications will be overwritten the next time the `@aws-sdk/client-timestream-query` package is updated.
To contribute to client you can check our [generate clients scripts](https://github.com/aws/aws-sdk-js-v3/tree/main/scripts/generate-clients).
## License
This SDK is distributed under the
[Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0),
see LICENSE for more information.
## Client Commands (Operations List)
CancelQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/cancelquerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/cancelquerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/cancelquerycommandoutput.html)
CreateScheduledQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/createscheduledquerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/createscheduledquerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/createscheduledquerycommandoutput.html)
DeleteScheduledQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/deletescheduledquerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/deletescheduledquerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/deletescheduledquerycommandoutput.html)
DescribeEndpoints
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/describeendpointscommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/describeendpointscommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/describeendpointscommandoutput.html)
DescribeScheduledQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/describescheduledquerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/describescheduledquerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/describescheduledquerycommandoutput.html)
ExecuteScheduledQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/executescheduledquerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/executescheduledquerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/executescheduledquerycommandoutput.html)
ListScheduledQueries
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/listscheduledqueriescommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/listscheduledqueriescommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/listscheduledqueriescommandoutput.html)
ListTagsForResource
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/listtagsforresourcecommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/listtagsforresourcecommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/listtagsforresourcecommandoutput.html)
PrepareQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/preparequerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/preparequerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/preparequerycommandoutput.html)
Query
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/querycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/querycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/querycommandoutput.html)
TagResource
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/tagresourcecommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/tagresourcecommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/tagresourcecommandoutput.html)
UntagResource
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/untagresourcecommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/untagresourcecommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/untagresourcecommandoutput.html)
UpdateScheduledQuery
[Command API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/classes/updatescheduledquerycommand.html) / [Input](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/updatescheduledquerycommandinput.html) / [Output](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-query/interfaces/updatescheduledquerycommandoutput.html)