Add an image link to Cosmos DB

- [Instructor] The second piece of our image upload…is to go into our document DB or Cosmos DB Service.…We want to add an image to that product.…So we want to retrieve that JSON document…and update it by adding an image property.…So we need the URI for the document so we can access it.…We're going to use a URIFactory which is part…of the Cosmos DB or document DB SDK.…Then we're going to create a document URI.…And into that then we pass the various items.…

So we have the database name, we have the collection name,…and we have the actual ID of the item.…And this then will parse those out…and create for us the actual URI.…Collection name there.…Now that we've got the URI we can just go out…and get that document so we can await…the doc.Client.readdocuementAsync…and we'll pass in that URI and that will get us…back the document that we need.…

And now we can set a property on it,…so remember the resource is…going to give me the actual document…and now I can set a property value dynamically.…Now I can pass in the image URI.…