Question

我正在尝试使用REST对Azure Cosmos数据库执行CRUD操作。根据链接 - https://docs.microsoft.com/en-us/rest/api/documentdb/create-a-document 我创建了我的有效负载并试图在Opera浏览器中使用Restman进行测试。以下是我的有效载荷详情 -

接头

Authorization       ***************************

Content-Type        application/query+json

x-ms-date           Tue, 05 Dec 2017 16:49:31 GMT

x-ms-session-token  Session

x-ms-version        2017-02-22

车身

id        sg4c828f-31f8-4db4-8e7c-e8bdff222dsg

value     {     "id": "AndersenFamily",     "LastName": "Andersen",     "Parents": [       {         "FamilyName": null,         "FirstName": "Thomas"       },       {         "FamilyName": null,         "FirstName": "Mary Kay"       }     ],     "Children": [       {         "FamilyName": null,         "FirstName": "Henriette Thaulow",         "Gender": "female",         "Grade": 5,         "Pets": [           {             "GivenName": "Fluffy"           }         ]       }     ],     "Address": {       "State": "WA",       "County": "King",       "City": "Seattle"     },     "IsRegistered": true   }

使用以下代码在C＃中生成放入请求标头中的auth-token（根据上述链接中的示例） -

string GenerateAuthToken(string verb, string resourceType, string resourceId, string date, string key, string keyType, string tokenVersion)
{
    var hmacSha256 = new System.Security.Cryptography.HMACSHA256 { Key = Convert.FromBase64String(key) };

    verb = verb ?? "";
    resourceType = resourceType ?? "";
    resourceId = resourceId ?? "";

    string payLoad = string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}\n{1}\n{2}\n{3}\n{4}\n",
            verb.ToLowerInvariant(),
            resourceType.ToLowerInvariant(),
            resourceId,
            date.ToLowerInvariant(),
            ""
    );

    byte[] hashPayLoad = hmacSha256.ComputeHash(System.Text.Encoding.UTF8.GetBytes(payLoad));
    string signature = Convert.ToBase64String(hashPayLoad);

    return System.Web.HttpUtility.UrlEncode(String.Format(System.Globalization.CultureInfo.InvariantCulture, "type={0}&ver={1}&sig={2}",
        keyType,
        tokenVersion,
        signature));
}

这是如何通过参数 -

GenerateAuthToken("GET", "dbs", "dbs/ToDoList", "Tue, 05 Dec 2017 16:49:31 GMT", PARENT_KEY, "master", "1.0");

所以当我向URL发送POST请求时

https://<account_name>.documents.azure.com:<port>/dbs/DCEAAA==/colls/DCEAAIcEVAA=/docs

我得到以下回复 -

{ ＆＃34;代码＆＃34;：＆＃34;未经授权＆＃34;，＆＃34; message＆＃34;：＆＃34;输入授权令牌无法提供请求。请检查是否按照协议构建了预期的有效负载，并检查正在使用的密钥。服务器使用以下有效负载 sign：＆＃39; post \ ndocs \ ndceaaicevaa = \ ntue，05 dec 2017 16:49:31 gmt \ n \ n＆＃39; \ r \ nActivityId：7565996c-d008-438d-a1e9-744d4871948a， Microsoft.Azure.Documents.Common / 1.19.121.4＆＃34; }

我不知道这里到底出了什么问题。如果有人有任何想法，请告诉我。如有任何澄清，请告诉我。

修改：在下方添加Restman截图 -

Answer 1

我跟进你提到的文档创建文档API，并做一个演示来创建带有rest API的documentdb文档。你可以参考它。对于其他操作，您可以按照以下代码构造哈希标记。

根据Common Azure Cosmos DB REST request headers，如果我们想创建一个文档，我们需要准备Header如下

Authorization,x-ms-date,Content-Type,x-ms-version

我们可以从document获得x-m版本。最新版本为 2017-02-22 。

我们可以从这个document获取您提到的演示代码，关于如何为主令牌构建散列令牌签名，请参阅此document。从文档我们可以知道resourceType可能是"dbs", "colls", "docs".我们需要创建文档，所以 resourceType = docs

var databaseId = "databaseName";
var collectionId = "collectionName";
var datetime = DateTime.UtcNow.ToString("R");
var verb = "post";
var resourceType = "docs"; //
var resourceId = $"dbs/{databaseId}/colls/{collectionId}";
var mastKey = "mastkey value";
var keyType = "master";
var tokenVersion = "1.0";
var authToken = GenerateAuthToken(verb, resourceType, resourceId, datetime, mastKey, keyType, tokenVersion);

我们还需要从上面提到的代码日期时间

获取 x-ms-date 值

Post https://{documentDBAccount}.documents.azure.com:443/dbs/{databaseName}/colls/{collectionId}/docs

<强>更新

请使用以下数据作为json body

{
    "id": "sg4c828f-31f8-4db4-8e7c-e8bdff222dsg",
    "value": {
        "id": "AndersenFamily",
        "LastName": "Andersen",
        "Parents": [
            {
                "FamilyName": null,
                "FirstName": "Thomas"
            },
            {
                "FamilyName": null,
                "FirstName": "Mary Kay"
            }
        ],
        "Children": [
            {
                "FamilyName": null,
                "FirstName": "Henriette Thaulow",
                "Gender": "female",
                "Grade": 5,
                "Pets": [
                    {
                        "GivenName": "Fluffy"
                    }
                ]
            }
        ],
        "Address": {
            "State": "WA",
            "County": "King",
            "City": "Seattle"
        },
        "IsRegistered": true
    }
}

在Azure Cosmos DB中使用REST进行CRUD操作

1 个答案: