Azure Cosmos DB + Functions Cookbook - Multi master & preferred region

precompiled-output.cs

    public static async Task<HttpResponseMessage> Run(
        [HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequest req, 
        [CosmosDB(databaseName: "%CosmosDBDatabase%",
            collectionName: "%CosmosDBCollection%",
            ConnectionStringSetting = "CosmosDBConnectionString",
            UseMultipleWriteLocations = true,
            PreferredLocations = "Central US"
        )] IAsyncCollector<MyClass> documentsToSave,
        ILogger log)
    {
        string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
        MyClass[] inputDocuments = JsonConvert.DeserializeObject<MyClass[]>(requestBody);
        if (inputDocuments == null)
        {
            return new HttpResponseMessage(HttpStatusCode.BadRequest);
        }

        foreach (MyClass inputDocument in inputDocuments)
        {
            await documentsToSave.AddAsync(inputDocument);
            log.LogInformation(inputDocument.id);
        }

        return new HttpResponseMessage(HttpStatusCode.Created);
    }