# Range

## Function

This API is used to get the parameter range of the developer mode page.

> Note:

> The Range provides reference information for client UI input limits and API request limits. When sending Get and Set requests, the parameters must be strictly limited according to the Range, otherwise the request may be rejected by the device.

## Request Message

None.

Sample:

    POST /API/Maintenance/DeveloperMode/Range HTTP/1.1

    {
        "version": "1.0",
        "data": {}
    }

## Response Message

## Parameter Description

###### Table 1

Parameter | Range | Type | Description
--- | --- | --- | ---
telnet_switch |  | bool | Telnet switch.(Supported by 8.2.3 and earlier versions)
ssh_switch |  | bool | Telnet switch. (Version support after 8.2.3)
export_disk_switch | "Shut Off", "Output To Terminal", "Output To Disk" | string | Print the log output location.
enable_export |  | bool | Whether to show the export button.
enable_delete |  | bool | Whether to show delete button.
support_ipc_log_export |  | bool | Whether to show export IPC log button. NVR and IPC parameters
search_log_enable |  | bool | Whether to display the six elements export button, IPC parameters
support_ipc_log_pack |  | bool | Whether to display the Pack Now button, IPC parameters
log_collect_tips | "Server Address example:" "protocol://hostname[:port]/path" "ftp://192.168.1.100:23/device/log" | string | Example ftp path, IPC parameters
download_type | "IPC_Local" | string | Download type, IPC parameters
support_ipc_log_delete |  | bool | Whether to show delete IPC log button.
export_days | "all","1","2","3","4","5" | string | Number of days to export logs.
channel_info |  | object | Object members see Table 2.

###### Table 2

Parameter | Range | Type | Description
--- | --- | --- | ---
channel | "CH1"…"CHx", "IP_CH1"…"IP_CHx" | object | Channel object, see Table 3 for object members.

###### Table 3

Parameter | Range | Type | Description
--- | --- | --- | ---
log_collect_enable |  | bool | Whether log collection is enabled. NVR and IPC parameters
support_logcollection |  | bool | Whether to support log collection.
log_collect_mode | "NVR" "SD_Card" "FTP" | string | Log collection mode. IPC parameter
remote_server |  | Json Object | Object member See also Table 4。IPC parameter

##### Table 4

Parameter | Range | Type | Description
--- | --- | --- | ---
username | maxlength 63 byte | string | FTP user name
password | maxlength 63 byte | string | FTP password
password_empty |  | bool | Whether the password is empty
server_address | maxlength 127 byte | string | FTP address

> Tips:

> The response message of the Range request may not contain all the fields in the above table, and the fields not included indicate that the device does not support this parameter configuration.

Sample:

    HTTP/1.1 200 OK
    Content-Type: application/json

    {
        "result": "success",
        "data": {
            "ssh_switch": {
                "type": "bool",
                "mode": "rw"
            },
            "export_disk_switch": {
                "type": "string",
                "mode": "rw",
                "items": [
                    "Shut Off",
                    "Output To Terminal",
                    "Output To Disk"
                ]
            },
            "enable_export": {"type": "bool"},
            "enable_delete": {"type": "bool"},
            "support_ipc_log_export": {"type": "bool"},
            "support_ipc_log_delete": {"type": "bool"},
            "channel_info": {
                "type": "object",
                "items": {
                    "CH1": {
                        "type": "object",
                        "items": {
                            "log_collect_enable": {"type": "bool"},
                            "support_logcollection": {"type": "bool"}
                        }
                    },
                    ...
                    "CH16": {
                        "type": "object",
                        "items": {
                            "log_collect_enable": {"type": "bool"},
                            "support_logcollection": {"type": "bool"}
                        }
                    }
                }
            },
            "export_days": {
                "type": "string",
                "mode": "rw",
                "items": [
                    "all",
                    "1",
                    "2",
                    "3",
                    "4",
                    "5"
                ]
            },
            "default_timeout": 1200000
        }
    }

## Error Code

See Response Messages Body and Common error_code for more information.