The RSS feed type in ArcGIS Velocity sends an HTTP or HTTPS request to the specified RSS URL at a user-defined interval. The request collects RSS data that can be retrieved in a web browser by browsing to a URL.
Examples
The following are example uses of the RSS feed:
- A GIS analyst wants to configure a feed to load the latest earthquake data at a defined interval from an RSS feed available on the internet.
- Updated sensor values are loaded from an RSS feed every minute.
Usage notes
Keep the following in mind when working with the RSS feed:
- The feed will poll the website to load data at the rate specified in the Feed Polling Interval step of the configuration wizard.
- When a polling frequency is set, the polling occurs at regular time intervals as opposed to the start time of the feed. For example, if a feed is set to poll for data every five minutes and the feed is started at 8:03 a.m., the first request for data will occur at 8:05 a.m., the next at 8:10 a.m., and so on.
- After configuring source connection parameters, see Configure input data to learn how to define the schema and the key parameters.
Parameters
The following are the parameters for the RSS feed:
| Parameter | Description | Data type |
|---|---|---|
URL | The full URL to the externally accessible RSS website to poll using HTTP requests. | String |
Authentication | The type of authentication used to access the web server. Authentication options are None, Basic, and Certificate. | String |
Username | The username for accessing the website. This parameter only applies when Authentication is set to Basic. | String |
Password | The password for accessing the website. This parameter only applies when Authentication is set to Basic. | Password |
Certificate URL | The URL location of the client certificate for accessing the website. This parameter only applies when Authentication is set to Certificate. | String |
Password | The client certificate password if one is set. This parameter only applies when Authentication is set to Certificate. | Password |
Custom headers | Optional custom headers to be included in the HTTP request sent to the specified HTTP endpoint. For example, custom headers can be used to specify a third-party API key or authorization header. | Key-Value Pair |
Additional logging | Specifies whether logging for raw RSS requests and responses issued by Velocity will be enabled. This parameter is optional. Note:Only enable this parameter for troubleshooting purposes and disable it when troubleshooting is complete. Once enabled, start the feed, and the debug level logs will be available on the feed logs page. Contact Esri Technical Support for assistance with troubleshooting if necessary. | Boolean |
Considerations and limitations
The following are considerations and limitations when using the RSS feed:
- The RSS data must be externally accessible on the internet.
- The size of the RSS page or file being polled cannot exceed 16 MB. If the RSS page or file being polled exceeds 16 MB, features will not be ingested.