add cfgsync doc (#2168)
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# Microsoft Application Insights JavaScript SDK - CfgSync Plugin
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[](https://github.com/microsoft/ApplicationInsights-JS/tree/main)
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[](https://dev.azure.com/mseng/AppInsights/_build/latest?definitionId=8184&branchName=main)
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[](https://badge.fury.io/js/%40microsoft%2Fapplicationinsights-cfgsync-js)
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Application Insights CfgSync Plugin enables configuration change communication among mutiple instances.
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Refer to [our GitHub page](https://github.com/microsoft/ApplicationInsights-JS) for more details on getting started.
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## Configuration
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| Name | Type | Default | Description |
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|------|------|---------|-------------|
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| syncMode | ICfgSyncMode<br>[Optional]| Broadcast | Sync mode of current instance. If set to `None`, current instance will NOT receive or broadcast config changes. If set to `Broadcast`, current instance will ONLY broadcast changes. If set to `Receive`, instance will ONLY receive config changes but NOT broadcast config changes. |
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| customEvtName | string<br>[Optional] | ai_cfgsync | Event name for sending or listening to configuration change details. |
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| cfgUrl | string<br>[Optional] | null | CDN endpoint for fetching configuration. If cfgUrl is defined, instance will NOT listen to core configuration changes. Details defined in the CDN endpoint should follow `ICfgSyncCdnConfig` interface. |
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| blkCdnCfg | boolean<br>[Optional] | false | Determines if fetching the CDN endpoint should be blocked or not. |
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| onCfgChangeReceive | function<br>[Optional] | null | Overrides callback function to handle event details when changes are received via event listener. |
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| overrideSyncFn | function<br>[Optional] | null | Overrides sync() function to broadcast changes. |
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| overrideFetchFn | function<br>[Optional] | null | Overrides fetch function to get config from cfgUrl when cfgUrl is defined. |
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| nonOverrideConfigs | NonOverrideCfg<br>[Optional] | {instrumentationKey: true, connectionString: true, endpointUrl: true } | When current instance is set with syncMode: `Receive`, config fields under nonOverrideConfigs will NOT be changed by any confif details sent out from other instances. |
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| scheduleFetchTimeout | number<br>[Optional] | 30 mins | Identifies the time interval (in milliseconds) for fetching config details from cfgUrl when cfgUrl is defined. If set to 0, the fetch operation will only be called once during initialization. |
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## Contributing
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This project welcomes contributions and suggestions. Most contributions require you to
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agree to a Contributor License Agreement (CLA) declaring that you have the right to,
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and actually do, grant us the rights to use your contribution. For details, visit
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<https://cla.microsoft.com>.
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When you submit a pull request, a CLA-bot will automatically determine whether you need
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to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the
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instructions provided by the bot. You will only need to do this once across all repositories using our CLA.
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This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
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For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
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or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
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## Data Collection
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As this SDK is designed to enable applications to perform data collection which is sent to the Microsoft collection endpoints the following is required to identify our privacy statement.
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The software may collect information about you and your use of the software and send it to Microsoft. Microsoft may use this information to provide services and improve our products and services. You may turn off the telemetry as described in the repository. There are also some features in the software that may enable you and Microsoft to collect data from users of your applications. If you use these features, you must comply with applicable law, including providing appropriate notices to users of your applications together with a copy of Microsoft’s privacy statement. Our privacy statement is located at <https://go.microsoft.com/fwlink/?LinkID=824704>. You can learn more about data collection and use in the help documentation and our privacy statement. Your use of the software operates as your consent to these practices.
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## Trademarks
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This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow [Microsoft’s Trademark & Brand Guidelines](https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks/usage/general). Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party’s policies.
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## License
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[MIT](LICENSE)
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@ -1,7 +1,7 @@
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{
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"name": "@microsoft/applicationinsights-cfgsync-js",
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"version": "0.0.2",
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"description": "Microsoft Application Insights CfgSync plugin",
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"description": "Microsoft Application Insights CfgSync Plugin",
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"homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
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"author": "Microsoft Application Insights Team",
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"main": "dist/es5/applicationinsights-cfgsync-js.js",
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@ -4,47 +4,49 @@ import { IConfiguration } from "@microsoft/applicationinsights-core-js";
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export interface ICfgSyncConfig {
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/**
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* Identifies whether instance should receive or broadcast config changes
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* Default to broadcast
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* @default Broadcast
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*/
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syncMode?: ICfgSyncMode;
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/**
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* Identifies event name that changes will be sent out with. And all listener instances will listen to event details under this name.
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* Default to cfgsync.
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* Event name for sending or listening to configuration change details
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* @default ai_cfgsync
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*/
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customEvtName?: string;
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/**
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* Identifies endpoint to get config rather than core config.
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* Default to null.
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* If set, any core config changes will be ignored.
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* CDN endpoint for fetching configuration. If cfgUrl is defined, instance will NOT listen to core configuration changes.
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* @default null
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*/
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cfgUrl?: string;
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/**
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* Identifies if fetching cdn endpoint should be blocked
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* Default to false.
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* Determines if fetching the CDN endpoint should be blocked or not.
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* @default false
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*/
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blkCdnCfg?: boolean;
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/**
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* Overrides callback function to handle event details when changes are received via eventListener.
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* Overrides callback function to handle event details when changes are received via event listener.
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* @default null
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*/
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onCfgChangeReceive?: (event?: ICfgSyncEvent) => void;
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/**
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* Overrides sync() function to broadcast changes.
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* Overrides sync() function to broadcast changes.\
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* @default null
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*/
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overrideSyncFn?: (config?:IConfiguration & IConfig, customDetails?: any) => boolean;
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/**
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* Overrides fetch function to get config from cfgUrl.
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* Overrides fetch function to get config from cfgUrl when cfgUrl is defined.
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* @default null
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*/
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overrideFetchFn?: SendGetFunction;
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/**
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* Identifies configs that should NOT be changed by other instances.
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* Default to {instrumentationKey: true, connectionString: true, endpointUrl: true }
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* When current instance is set with syncMode: `Receive`, config fields under nonOverrideConfigs will NOT be changed by any confif details sent out from other instances.
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* @default {instrumentationKey:true,connectionString:true,endpointUrl:true}
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*/
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nonOverrideConfigs?: NonOverrideCfg;
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/**
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* Identifies time interval (in ms) that should fetch from cfgUrl.
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* Identifies the time interval (in milliseconds) for fetching config details from cfgUrl when cfgUrl is defined.
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* Default to 30 mins, 30*60*1000ms.
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* If set to 0, fetch will only be called once during initialization.
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* If set to 0, the fetch operation will only be called once during initialization.
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* @default 30mins (30*60*1000ms)
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*/
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scheduleFetchTimeout?: number;
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}
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