Php Drupal7服务RESTAPI

上面的“fid”是我通过表单上传时添加的一些内容，但是 当iam通过json数据上传时，我只是将“fid”增加到 "74" 当iam通过邮递员中的json为同一节点插入时

 "field_attachment_file": {
        "und": [
            {
                "fid": "73",             
                "filename": "Screenshot from 2018-06-08 12-54-20.png",
                "uri": "public://Screenshot from 2018-06-08 12-54-20_2.png",
                "filemime": "image/png",                   
                "status": "1",             
                "type": "undefined",

            },

        ]
    }

 "field_attachment_file": {
        "und": [
            {
                "fid": "74",
                "uid": "1",
                "filename": "Screenshot from 2018-06-08 12-54-20.png",
                "uri": "http://webiste/api/v1/file/66",
                "filemime": "image/png",
                "status": "1",
                "type": "undefined"
            }


        ]
    }

我想设置“fid”，以便为单个nid上载多个图像

这是我得到的结果

---

该字段是多上传的

第一个点击站点/访问点/文件，然后发布文件

 "field_attachment_file": {
        "und": [
            {
                "fid": "73",             
                "filename": "Screenshot from 2018-06-08 12-54-20.png",
                "uri": "public://Screenshot from 2018-06-08 12-54-20_2.png",
                "filemime": "image/png",                   
                "status": "1",             
                "type": "undefined",

            },

        ]
    }

 "field_attachment_file": {
        "und": [
            {
                "fid": "74",
                "uid": "1",
                "filename": "Screenshot from 2018-06-08 12-54-20.png",
                "uri": "http://webiste/api/v1/file/66",
                "filemime": "image/png",
                "status": "1",
                "type": "undefined"
            }


        ]
    }

然后您将获得fid。使用fid将其上载到节点

 "field_attachment_file": {
        "und": [
            {
                "fid": "73",             
                "filename": "Screenshot from 2018-06-08 12-54-20.png",
                "uri": "public://Screenshot from 2018-06-08 12-54-20_2.png",
                "filemime": "image/png",                   
                "status": "1",             
                "type": "undefined",

            },

        ]
    }

 "field_attachment_file": {
        "und": [
            {
                "fid": "74",
                "uid": "1",
                "filename": "Screenshot from 2018-06-08 12-54-20.png",
                "uri": "http://webiste/api/v1/file/66",
                "filemime": "image/png",
                "status": "1",
                "type": "undefined"
            }


        ]
    }