How to Retrieve a Thumbnail Image of a Dashboard
As a dashboard designer or administrator, you may want to retrieve a thumbnail image from your dashboard to display it on your website, email, or any other medium. A thumbnail image is a small image that represents a larger image, such as a dashboard. In Luzmo, you can create a thumbnail image for any dashboard, including private ones.
Public Dashboards
If you have a public dashboard in Luzmo, you can access its thumbnail image by simply adding its ID to the following URL: https://app.luzmo.com/thumbnail/securable/256px/'your\_dashboard\_id\_here'.png
For example, if your dashboard ID is "123456", your thumbnail image URL would be: https://app.luzmo.com/thumbnail/securable/256px/123456.png
Private Dashboards
If you have a private dashboard in Luzmo, you need to request an embed token to access its thumbnail image. This is because thumbnails are snapshots of the dashboards and thus may contain sensitive information.
Generating an Embed Token
For enhanced security with the Access Control Layer (ACL), you'll need an Embed Token to access private dashboard thumbnails. Follow the guidelines provided in our Developer Documentation or the specific article on generating Embed Tokens https://academy.luzmo.com/article/a4coimuo.
Once obtained, this token can be used to securely access your dashboard's thumbnail. https://app.luzmo.com/thumbnail/securable/256px/'your\_dashboard\_id\_here'.png?key='your\_temporary\_auth\_key\_here'&token='your\_temporary\_auth\_token\_here'
For example, if your dashboard ID is "123456", your temporary key is "abcd1234", and your temporary token is "efgh5678", your thumbnail image URL would be: https://app.luzmo.com/thumbnail/securable/256px/123456.png?key=abcd1234&token=efgh5678
Security Considerations
It's important to keep in mind that thumbnails may contain confidential information (i.e. the data visible in them). The thumbnails are generated when a dashboard is created/edited and will contain the data as accessible by the dashboard designer. This means that if your dashboard contains sensitive information, such as personal or financial data, it may be exposed through its thumbnail image.
Alternative Solution: For additional security and customization, consider export the dashboard via Luzmo's API, utilizing an Embed Token. This allows for the application of filters, parameter overrides, and connection overrides, ensuring only the intended data is displayed and shared.