Azure Functions function.json Cosmos Trigger

Question

我们正在为 Azure功能使用 Cosmos DB 输入触发器，并且unable to use environment variables in our function.json like other input triggers用于粘滞插槽设置。

还有其他人有成功using environment variables in function.json using Cosmos DB trigger type吗？

function.json

{
  "bindings": [
    {
      "type": "cosmosDBTrigger",
      "name": "inputDocs",
      "direction": "in",
      "leaseDatabaseName": "leases",
      "leaseCollectionName": "MyCosmosCollection-myFunction",
      "connectionStringSetting": "CosmosTriggers-SourceAdapter",
      "databaseName": "%cosmos-triggers-database-name%",
      "collectionName": "MyCosmosCollection",
      "createLeaseCollectionIfNotExists": true
    }
  ],
  "disabled": false
}

Azure功能错误

Function ($myFunction) Error: The listener for function 'Functions.myFunction' was unable to start.
 Microsoft.Azure.WebJobs.Extensions.DocumentDB: Either the source collection 'MyCosmosCollection' (in database '%cosmos-triggers-database-name%') or the lease collection 'MyCosmosCollection-myFunction' (in database 'leases') does not exist. Both collections must exist before the listener starts. To automatically create the lease collection, set 'CreateLeaseCollectionIfNotExists' to 'true'. Microsoft.Azure.Documents.Client: Message: {"Errors":["Resource Not Found"]}
 ActivityId: b00f7802-fccb-47eb-972d-0bd70ec896c1, Request URI: rntbd://bn6prdddc05-docdb-1.documents.azure.com:14639/apps/6628b461-75d4-4e4a-9897-ada4076dc30c/services/1b0fc27a-de15-45cf-a1b2-ebfce044d1e2/partitions/34cfee55-54aa-4e31-81f4-08cf1bfdf62f/replicas/131523094168492638s/.
 Session Id: 092ccb7ce9104407bf56c26a5cc8b119

 Timestamp: 2017-10-31T19:13:03.914Z