69 lines
3.1 KiB
Markdown
69 lines
3.1 KiB
Markdown
# Thumbnail/preview of pages and files in SharePoint
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## Summary
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A web part showcasing how to call the [Microsoft Graph Thumbnails API](https://docs.microsoft.com/en-us/graph/api/driveitem-list-thumbnails) to generate a preview image for files and pages in SharePoint. The sample illustrates how to craft the preview URL both from a search result as well as from a SharePoint item object.
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_Note that a preview for all file formats (eg. Excel) might not currently be available._
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The sample calls the Microsoft Graph API directly directly via the _api/2.0 endpoint in SharePoint Online, but can easily be changed to call the Graph API endpoint directly for scenarios outside of SharePoint as long as an access token is retrieved.
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The goal of the sample is to illustrate a single call calling pattern for the thumbnail with the following calling pattern:
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<pre>
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<img src="<i><b><endpoint></b>/sites/<b><site id></b>/lists/<b><list id></b>/items/<b><item id></b>/driveItem/thumbnails/0/<b><custom size></b>/content</i>">
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</pre>
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| Token | Description |
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---|---
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|endpoint| graph.microsoft.com/v1.0 <br/> tenant.sharepoint.com/_api/v2.0
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|site id | Site object id - GUID. |
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|list id | List object id - GUID. |
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|item id | ListItem object id or unique id - Integer/GUID. |
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|custom size | See [Requesting custom thumbnail sizes](https://docs.microsoft.com/en-us/graph/api/driveitem-list-thumbnails?view=graph-rest-1.0&tabs=http#requesting-custom-thumbnail-sizes) in the official Microsoft Graph documentation.
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## Used SharePoint Framework Version
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## Applies to
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* [SharePoint Framework Release GA](https://blogs.office.com/2017/02/23/sharepoint-framework-reaches-general-availability-build-and-deploy-engaging-web-parts-today/)
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* [Office 365 tenant](https://dev.office.com/sharepoint/docs/spfx/set-up-your-development-environment)
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## Solution
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Solution|Author(s)
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--------|---------
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js-msgraph-thumbnail | Mikael Svenson ([@mikaelsvenson](http://www.twitter.com/mikaelsvenson), [techmikael.com](techmikael.com))
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## Version history
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Version|Date|Comments
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-------|----|--------
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1.0|January 21st, 2020|Initial release
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## Disclaimer
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**THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**
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---
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## Minimal Path to Awesome
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### Local testing
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- Clone this repository
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- In the command line run:
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- `npm install`
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- `gulp serve`
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### Deploy
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* gulp clean
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* gulp bundle --ship
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* gulp package-solution --ship
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* Upload the js-msgraph-thumbnail.sppkg file from sharepoint\solution to your tenant App Catalog
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* E.g.: https://<tenant>.sharepoint.com/sites/AppCatalog/AppCatalog
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* Add the web part *Thumbnail* to a site collection where you have files in the `Shared Documents` folder, and test it on a page.
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* Change `const libraryPath = "Shared Documents";` if you want to target `SitePages` or a different library.
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<img src="https://telemetry.sharepointpnp.com/sp-dev-fx-webparts/samples/js-msgraph-thumbnail" /> |