Cosmos DB分区访问数据库

我正在使用cosmosDB实现多租户应用程序 . 我正在使用分区键来分隔多个用户数据 . 按照最佳实践，我试图允许每个租户拥有自己的数据库访问令牌 .

我创建了一个用户和权限，并使用创建的令牌访问该分区 . 但是我收到以下错误：

提供的分区键要么与集合中的定义不对应，要么与文档中指定的分区键字段值不匹配 . ActivityId：1659037a-118a-4a2d-8615-bb807b717fa7，Microsoft.Azure.Documents.Common / 1.22.0.0,Windows / 10.0.17134 documentdb-netcore-sdk / 1.9.1

我的代码如下：

构造函数启动客户端

public Projects (CosmosDbConfig cosmosConfig)
{
    config = cosmosConfig;
    client = new DocumentClient(new Uri(config.Endpoint), config.AuthKey);
    collectionUri = UriFactory.CreateDocumentCollectionUri(config.Database, config.Collection);
    config.AuthKey = GetUserToken().Result;;
    client = new DocumentClient(new Uri(config.Endpoint), config.AuthKey);
}

get user函数创建用户并检索令牌 . 用户ID是分区键 .

private async Task<string> GetUserToken()
{
        User user = null;
        try
        {
            try
            {
                user = await client.ReadUserAsync(UriFactory.CreateUserUri(config.Database, config.PartitionKey));

            var permission = await GetorCreatePermission(user, config.Collection, config.PartitionKey);
            return permission.Token;
        }
        catch (Exception ex) {
            Console.WriteLine(ex.Message);
        }
        if (user == null)
        {
            user = new User
            {
                Id = config.PartitionKey
            };
            user = await client.CreateUserAsync(UriFactory.CreateDatabaseUri(config.Database), user);
            var permission = await GetorCreatePermission(user, config.Collection, config.PartitionKey);
            return permission.Token;
        }
        else
        {
            throw new Exception("");
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

每个集合都执行权限，并将集合名称保存为ID，因为每个用户的ID是唯一的 .

private async Task<Permission> GetorCreatePermission(User user,
         string collection,
         string paritionKey)
    {
        var permDefinition = new Permission
        {
            Id = collection,
            PermissionMode = PermissionMode.All,
            ResourceLink = collectionUri.OriginalString,
            ResourcePartitionKey = new PartitionKey(paritionKey),
        };
        var perms = client.CreatePermissionQuery(user.PermissionsLink).AsEnumerable().ToList();
        var perm = perms.FirstOrDefault(x => x.Id == collection);
        if (perm != null)
        {
            return perm;
        }
        else
        {
            var result = await client.CreatePermissionAsync(user.SelfLink, permDefinition);
            perm = result.Resource;
            return perm;
        }

    }

create函数使用新客户端和发生错误的位置 .

public async Task<string> Create(Project p)
    {
        var result = await client.CreateDocumentAsync(collectionUri, p, new RequestOptions()
        { PartitionKey = new PartitionKey(config.PartitionKey),
        });
        var document = result.Resource;
        return document.Id;
    }