将存储在Google Cloud 端存储中的文件加载到Big Query时出错

我一直在尝试创建一个工作，以便将来自Google Cloud Storage的压缩json文件添加到Google BigQuery表中 . 我在Google Cloud 端存储和Google BigQuery中都具有读/写访问权限 . 此外，上传的文件与BigQuery属于同一个项目 .

当我通过 POST 请求访问此URL https://www.googleapis.com/upload/bigquery/v2/projects/NUMERIC_ID/jobs后面的资源时，会发生此问题 . 对上述资源的请求内容可以如下：

{
"kind" : "bigquery#job",
"projectId" : NUMERIC_ID,
"configuration": {
    "load": {
        "sourceUris": ["gs://bucket_name/document.json.gz"],
        "schema": {
            "fields": [
                {
                    "name": "id",
                    "type": "INTEGER"
                },
                {
                    "name": "date",
                    "type": "TIMESTAMP"
                },
                {
                    "name": "user_agent",
                    "type": "STRING"
                },
                {
                    "name": "queried_key",
                    "type": "STRING"
                },
                {
                    "name": "user_country",
                    "type": "STRING"
                },
                {
                    "name": "duration",
                    "type": "INTEGER"
                },
                {
                    "name": "target",
                    "type": "STRING"
                }
            ]
        },
        "destinationTable": {
            "datasetId": "DATASET_NAME",
            "projectId": NUMERIC_ID,
            "tableId": "TABLE_ID"
        }
    }
}

}

但是，错误没有任何意义，也可以在下面找到：

{
    "error": {
        "errors": [
            {
                "domain": "global",
                "reason": "invalid",
                "message": "Job configuration must contain exactly one job-specific configuration object (e.g., query, load, extract, spreadsheetExtract), but there were 0: "
            }
        ],
        "code": 400,
        "message": "Job configuration must contain exactly one job-specific configuration object (e.g., query, load, extract, spreadsheetExtract), but there were 0: "
    }
}

我知道问题不在于项目ID或放置在身份验证标头中的访问令牌中，因为我之前已经成功创建了一个空表 . 另外我将内容类型 Headers 指定为 application/json ，我认为这不是问题，因为正文内容应该是json编码的 .

提前致谢