Create a Collection with PartitionKey in CosmosDB

问题

I want to create a Collection in Code using the DocumentClient like this

await client.CreateDocumentCollectionAsync (
   UriFactory.CreateDatabaseUri(databaseId),
   new DocumentCollection { Id = collectionId },
   new RequestOptions { OfferThroughput = 1000 }
);

But how do I add a PartitionKey? In the CosmosDB Emulator I just add the name of the property on my class for the collection. Cant work it out. Could be I'm missing something fundamental here. Thank you

回答1:

You need to set DocumentCollection.PartitionKeyDefinition

DocumentCollection collectionDefinition = new DocumentCollection();
collectionDefinition.Id = collectionId;
collectionDefinition.PartitionKey.Paths.Add("/deviceId"); //--> add this

DocumentCollection partitionedCollection = await client.CreateDocumentCollectionAsync(
    UriFactory.CreateDatabaseUri(databaseId),
    collectionDefinition,
    new RequestOptions { OfferThroughput = 10100 });

来源：https://stackoverflow.com/questions/48261296/create-a-collection-with-partitionkey-in-cosmosdb