node-red基础

​ Node-RED是构建物联网应用程序的一个强大工具，其重点是简化代码块的”连接”以执行任务。它使用可视化编程方法，允许开发人员将预定义的代码块（也叫做”节点”）连接起来执行任务。连接的节点，通常是输入节点、处理节点和输出节点的组合，当它们连接在一起时，构成一个”流”。最初是IBM在2013年末开发的一个开源项目，以满足他们快速连接硬件和设备到Web服务和其他软件的需求–作为物联网的一种粘合剂–它很快发展成为一种通用的物联网编程工具。重要的是，Node-RED已经迅速开发出一个重要的、不断增长的用户基础和一个活跃的开发人员社区，他们正在开发新的节点，允许程序员重用Node-RED色代码来完成各种各样的任务。
​ 虽然Node-RED最初是用来处理物联网的，也就是说，它是与现实世界交互和控制的设备，但随着它的发展，它已经成为一系列应用的有用工具。

基础使用（node-red版本-v2.1.4）

注解：

• node-red将预定义的代码块叫做”节点“，以下也会用节点来代指。以下内容主要是对每一个节点的功能和使用进行说明
• 标题中带”*”表示该（分类下）节点是扩展节点，是通过“节点管理”功能后安装的节点。扩展模块的具体名称将在标题后用“()”标记出来。

共通

• inject

  手动或定期得将消息注入流中。消息的有效荷载可以为多种类型，包括字符串，JavaScript对象或当前时间。

  输出

  • payloadvarious

    指定的消息的有效荷载。

  • topic字符串

    可以在节点中配置的可选属性。

  详细

  通过使用特定的有效荷载，注入节点可以启动流。默认有效荷载是当前时间的时间戳（以毫秒为单位，自1970年1月1日起）。

  该节点还支持注入字符串，数字，布尔值，JavaScript对象或流/全局上下文值。

  默认情况下，节点可以通过在编辑器中单击节点按钮来手动触发。同时也可以被设置为定期或按计划注入。

  另一个可选的设置是在每次启动流时注入一次。

  可以指定的最大间隔约为596小时/24天。 但是，如果对于间隔超过一天的那些间隔，建议您使用scheduler节点来应对断电或重启。

  注意：选项“时间间隔” 和“特定时间” 使用了标准cron系统。这意味着因此“20分钟”并不表示在此之后20分钟，而是每小时的20分钟，40分钟。如果您希望设定为从现在开始的每20分钟，那么请使用“间隔” 选项。

  注意: 如果您想在字符串中包含换行符，必须使用“功能”节点创建有效荷载。

• debug

  在“调试”侧边栏选项卡和运行时日志中显示选定的消息属性。 默认情况下，它会显示msg.payload的值，但您也可以将其设置成显示任意属性，完整消息或JSONata表达式的结果。

  详细
  调试侧边栏会提供已发消息的结构化视图，方便您查询消息的结构。

  JavaScript对象和数组可以根据需要来折叠或扩展。缓冲区对象可以显示为原始数据，也可以显示为字符串。

  对任意条消息，调试侧边栏还会显示接收消息的时间，发送消息的节点以及消息类型等信息。单击源节点ID将在工作区中显示该节点。

  节点上的按钮可用于启用或禁用其输出。建议禁用或删除所有未使用的调试节点。

  还可以通过配置节点，将所有消息发送到运行时的日志，或将简短的数据（32个字符内）在调试节点下的状态文本上显示。

• complete

  当另一个节点完成对消息的处理时触发流。

  详细

  如果一个节点通知运行时它已完成消息的处理，该节点可用于触发第二个流。

  这个节点可以与没有输出端口的节点一起使用，例如在使用电子邮件发送节点来发送邮件后触发一个流。

  此节点只能被设置为处理流中某个所选节点的事件。与Catch节点不同，您不能指定“所有节点”模式并以流中的所有节点为目标。

  并非所有节点都会触发此事件。这取决于它们是否支持于Node-RED 1.0中引入的此功能。

• catch

  捕获由同一标签页上的节点引发的错误。

  输出

  • error.message字符串

    错误消息。

  • error.source.id字符串

    引发错误的节点的ID。

  • error.source.type字符串

    引发错误的节点的类型。

  • error.source.name字符串

    引发错误的节点的名称。（如果已设置）

  详细

  如果节点在处理消息时抛出错误，则流程通常会停止。该节点可用于捕获那些错误并通过专用流程进行处理。

  默认情况下，该节点将捕获同一标签页上任何节点抛出的错误。或者，它可以针对特定节点，或配置为仅捕获另一个“目标”捕获节点尚未捕获的错误。

  当错误发生时，所有匹配的catch节点都会收到错误消息。

  如果在子流中发送了错误，则该错误将由子流中的任意捕获节点处理。如果子流中不存在捕获节点，则那错误将被传播到子流实例所在的标签页。

  如果消息已经具有error属性，则将该error复制为_error。

• status

  获取在同一标签页上的其他节点的状态消息。

  输出

  • status.text字符串

    状态文本。

  • status.source.type字符串

    报告状态的节点的类型。

  • status.source.id字符串

    报告状态的节点的ID。

  • status.source.name字符串

    报告状态的节点的名称（如果已设置）。

  详细

  该节点不包含有效荷载。

  默认情况下，节点会获取同一工作空间标签页上报告所有节点的状态。可以通过配置来设定目标节点。

• link in

  在流之间创建虚拟连线。

  详细

  该节点可以连接到任何标签页上存在的任何link out节点。连接后，它们的行为就像连接在一起。

  仅当选择链接节点时，才会显示链接节点之间的链接。如果有指向另一个选项卡的链接，则显示一个虚拟节点。单击该虚拟节点将带您到相应的选项卡。

  注意：无法创建进入或离开子流的链接。

• link call

• link out

  在流之间创建虚拟连线。

  详细

  该节点可以连接到任何标签页上存在的任何link in节点。连接后，它们的行为就像连接在一起。

  仅当选择链接节点时，才会显示链接节点之间的链接。如果有指向另一个选项卡的链接，则显示一个虚拟节点。单击该虚拟节点将带您到相应的选项卡。

  注意：无法创建进入或离开子流的链接。

• comment

  可用于向流添加注释的节点。

  详细

  编辑面板接受Markdown语法。输入的文本将在信息侧面板中显示。

功能

• function
• switch
• change
• range
• template
• delay
• trigger
• exec
• filter

网络

• mqtt in
• mqtt out
• http in
• http response
• http request
• websocket in
• websocket out
• tcp in
• tcp out
• tcp request
• udp in
• udp out

序列

• split
• join
• sort
• batch

解析

• csv
• html
• json
• xml
• yaml

存储

• write file
• read file
• watch
• *mysql(node-red-node-mysql)

*dashboard(node-red-dashboard)

• button

• dropdown

• switch

• slider

• numeric

• text input

• date picker

• color picker

• form

• text

• gauge

• chart

  折线图示例

  //chart节点前的 function节点内的代码
  let msg = {
  	payload: [{
          "series": ["A", "B", "C"],
          "data": [
              [{ "x": 1504029632890, "y": 5 },
               { "x": 1504029636001, "y": 4 },
               { "x": 1504029638656, "y": 2 }
              ],
              [{ "x": 1504029633514, "y": 6 },
               { "x": 1504029636622, "y": 7 },
               { "x": 1504029639539, "y": 6 }
              ],
              [{ "x": 1504029634400, "y": 7 },
               { "x": 1504029637959, "y": 7 },
               { "x": 1504029640317, "y": 7 }
              ]
          ],
          "labels": [""]
      }]
  }
  
  return msg

  如果x轴是非时间序列，不应该配置x和y，而是按照以下格式操作：

  let msg = {
  	payload: [{
          "series": ["X", "Y", "Z" ],
          "data": [ [5,6,9,10], [3,8,5,10], [6,7,2,10] ],
          "labels": [ "Jan", "Feb", "Mar", "Apr" ]
      }]
  }
  
  return msg

• audio out

• notification

• ui control

• template

实际案例

天气预报页面：主要是通过dropdown节点进行地区选择，然后使用http request节点，访问 高德-天气查询 的api，然后通过各个ui组件展示出来。

[
    {
        "id": "93431d81a8ddb5f8",
        "type": "tab",
        "label": "获取天气信息",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "8e91ffaf1056ff9d",
        "type": "link out",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "mode": "link",
        "links": [
            "d23b7fcbd6eac6c6"
        ],
        "x": 2815,
        "y": 580,
        "wires": []
    },
    {
        "id": "d23b7fcbd6eac6c6",
        "type": "link in",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "links": [
            "8e91ffaf1056ff9d"
        ],
        "x": 2915,
        "y": 580,
        "wires": [
            [
                "9695bcb124067020"
            ]
        ]
    },
    {
        "id": "77afba0c01392262",
        "type": "switch",
        "z": "93431d81a8ddb5f8",
        "name": "判断请求类型",
        "property": "payload",
        "propertyType": "msg",
        "rules": [
            {
                "t": "hask",
                "v": "forecasts",
                "vt": "str"
            },
            {
                "t": "hask",
                "v": "lives",
                "vt": "str"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 3320,
        "y": 580,
        "wires": [
            [
                "46f54fe47d2668b2"
            ],
            [
                "01a29a8ee6e9973e"
            ]
        ]
    },
    {
        "id": "46f54fe47d2668b2",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取未来几天的天气信息",
        "func": "let result = {\n    payload: msg.payload.forecasts[0]\n}\nreturn result;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 3550,
        "y": 520,
        "wires": [
            [
                "a76cf5bdc5d8582d",
                "5f97c00d04379107",
                "65ab3b77263e35cb"
            ]
        ]
    },
    {
        "id": "400e447cece05b1a",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取未来几天天气信息",
        "func": "let data = msg.payload.casts\n\nlet res = {\n    payload: [{\n        series: [\"最低温度\", \"最高温度\"],\n        data: [data.map(e=>{\n            return e.nighttemp\n        }),data.map(e=>{\n            return e.daytemp\n        })],\n        labels: data.map(e=>{\n            return e.date + ['']\n        }),\n    }]\n}\n\n\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4100,
        "y": 540,
        "wires": [
            [
                "fe36c4bb2dcf9423"
            ]
        ]
    },
    {
        "id": "fe36c4bb2dcf9423",
        "type": "ui_chart",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "group": "0273a65c57aae0c4",
        "order": 18,
        "width": 0,
        "height": 0,
        "label": "近三日温度",
        "chartType": "line",
        "legend": "true",
        "xformat": "HH:mm:ss",
        "interpolate": "linear",
        "nodata": "",
        "dot": false,
        "ymin": "",
        "ymax": "",
        "removeOlder": "1",
        "removeOlderPoints": "1111",
        "removeOlderUnit": "604800",
        "cutout": 0,
        "useOneColor": false,
        "useUTC": false,
        "colors": [
            "#1f77b4",
            "#e33d2b",
            "#ff7f0e",
            "#2ca02c",
            "#98df8a",
            "#d62728",
            "#ff9896",
            "#9467bd",
            "#c5b0d5"
        ],
        "outputs": 1,
        "useDifferentColor": false,
        "className": "",
        "x": 4310,
        "y": 540,
        "wires": [
            []
        ]
    },
    {
        "id": "e78e9980959f8193",
        "type": "http request",
        "z": "93431d81a8ddb5f8",
        "name": "获取未来几天的天气信息",
        "method": "GET",
        "ret": "obj",
        "paytoqs": "query",
        "url": "https://restapi.amap.com/v3/weather/weatherInfo?key=0fcc0a97a51a9f8c912dc799779fff76&extensions=all",
        "tls": "",
        "persist": false,
        "proxy": "",
        "authType": "",
        "senderr": false,
        "x": 2570,
        "y": 580,
        "wires": [
            [
                "8e91ffaf1056ff9d"
            ]
        ]
    },
    {
        "id": "8057b904a6e8565f",
        "type": "e-mail",
        "z": "93431d81a8ddb5f8",
        "server": "smtp.gmail.com",
        "port": "465",
        "secure": true,
        "tls": true,
        "name": "",
        "dname": "",
        "x": 3750,
        "y": 1080,
        "wires": []
    },
    {
        "id": "68735a5bbf8c4b94",
        "type": "switch",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "property": "payload",
        "propertyType": "msg",
        "rules": [
            {
                "t": "eq",
                "v": "",
                "vt": "str"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 1,
        "x": 3690,
        "y": 1020,
        "wires": [
            [
                "8057b904a6e8565f"
            ]
        ]
    },
    {
        "id": "01a29a8ee6e9973e",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取实时天气信息",
        "func": "let result = {\n    payload: msg.payload.lives[0]\n}\nreturn result;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 3550,
        "y": 820,
        "wires": [
            [
                "68735a5bbf8c4b94",
                "2c38bf74933d4bf3"
            ]
        ]
    },
    {
        "id": "8d7678fb61468ec4",
        "type": "http request",
        "z": "93431d81a8ddb5f8",
        "name": "获取实时天气信息",
        "method": "GET",
        "ret": "obj",
        "paytoqs": "query",
        "url": "https://restapi.amap.com/v3/weather/weatherInfo?key=0fcc0a97a51a9f8c912dc799779fff76&extensions=base",
        "tls": "",
        "persist": false,
        "proxy": "",
        "authType": "",
        "senderr": false,
        "x": 2550,
        "y": 640,
        "wires": [
            [
                "8e91ffaf1056ff9d"
            ]
        ]
    },
    {
        "id": "9695bcb124067020",
        "type": "switch",
        "z": "93431d81a8ddb5f8",
        "name": "判断请求是否成功",
        "property": "payload.status",
        "propertyType": "msg",
        "rules": [
            {
                "t": "eq",
                "v": "1",
                "vt": "str"
            },
            {
                "t": "neq",
                "v": "1",
                "vt": "str"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 3050,
        "y": 580,
        "wires": [
            [
                "77afba0c01392262"
            ],
            [
                "e3d08351c3fba68b"
            ]
        ]
    },
    {
        "id": "1f0c9379d9cf99ea",
        "type": "inject",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "{\"city\":\"110115\"}",
        "payloadType": "json",
        "x": 780,
        "y": 460,
        "wires": [
            [
                "0334158d305569e4"
            ]
        ]
    },
    {
        "id": "99cb170d1eb29648",
        "type": "link in",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "links": [
            "0334158d305569e4"
        ],
        "x": 1115,
        "y": 540,
        "wires": [
            [
                "101d5be84a9aedd4",
                "997b812c57a1b210",
                "8d7678fb61468ec4"
            ]
        ]
    },
    {
        "id": "0334158d305569e4",
        "type": "link out",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "mode": "link",
        "links": [
            "99cb170d1eb29648"
        ],
        "x": 1075,
        "y": 540,
        "wires": []
    },
    {
        "id": "3f43a8f6106d9e56",
        "type": "ui_dropdown",
        "z": "93431d81a8ddb5f8",
        "name": "地区选择",
        "label": "",
        "tooltip": "",
        "place": "请选择地区",
        "group": "0273a65c57aae0c4",
        "order": 2,
        "width": 5,
        "height": 1,
        "passthru": true,
        "multiple": false,
        "options": [
            {
                "label": "东城区",
                "value": "110101",
                "type": "str"
            },
            {
                "label": "西城区",
                "value": "110102",
                "type": "str"
            },
            {
                "label": "丰台区",
                "value": "110106",
                "type": "str"
            },
            {
                "label": "海淀区",
                "value": "110108",
                "type": "str"
            },
            {
                "label": "朝阳区",
                "value": "110105",
                "type": "str"
            },
            {
                "label": "石景山区",
                "value": "110107",
                "type": "str"
            },
            {
                "label": "门头沟区",
                "value": "110109",
                "type": "str"
            },
            {
                "label": "房山区",
                "value": "110111",
                "type": "str"
            },
            {
                "label": "通州区",
                "value": "110112",
                "type": "str"
            },
            {
                "label": "顺义区",
                "value": "110113",
                "type": "str"
            },
            {
                "label": "昌平区",
                "value": "110114",
                "type": "str"
            },
            {
                "label": "大兴区",
                "value": "110115",
                "type": "str"
            },
            {
                "label": "怀柔区",
                "value": "110116",
                "type": "str"
            },
            {
                "label": "平谷区",
                "value": "110117",
                "type": "str"
            },
            {
                "label": "密云区",
                "value": "110118",
                "type": "str"
            },
            {
                "label": "延庆区",
                "value": "110119",
                "type": "str"
            }
        ],
        "payload": "",
        "topic": "topic",
        "topicType": "msg",
        "className": "",
        "x": 660,
        "y": 540,
        "wires": [
            [
                "c96d82e44a98b8c1"
            ]
        ]
    },
    {
        "id": "c96d82e44a98b8c1",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "格式化地区选择",
        "func": "let res = {\n    payload: {\n        city: msg.payload\n    }\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 840,
        "y": 540,
        "wires": [
            [
                "0334158d305569e4"
            ]
        ]
    },
    {
        "id": "ffbf4b6f4095f633",
        "type": "file",
        "z": "93431d81a8ddb5f8",
        "name": "forecasts",
        "filename": "forecasts.txt",
        "appendNewline": false,
        "createDir": true,
        "overwriteFile": "true",
        "encoding": "none",
        "x": 440,
        "y": 660,
        "wires": [
            []
        ]
    },
    {
        "id": "101d5be84a9aedd4",
        "type": "file in",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "filename": "forecasts.txt",
        "format": "utf8",
        "chunk": false,
        "sendError": false,
        "encoding": "none",
        "allProps": false,
        "x": 1250,
        "y": 540,
        "wires": [
            [
                "3a451e17d0b2321c"
            ]
        ]
    },
    {
        "id": "3a451e17d0b2321c",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "string2object",
        "func": "let res = {\n    payload: JSON.parse(msg.payload || '{\"data\":{}}')\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 1430,
        "y": 540,
        "wires": [
            [
                "997b812c57a1b210"
            ]
        ]
    },
    {
        "id": "997b812c57a1b210",
        "type": "join",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "mode": "custom",
        "build": "merged",
        "property": "payload",
        "propertyType": "msg",
        "key": "payload",
        "joiner": "\\n",
        "joinerType": "str",
        "accumulate": false,
        "timeout": "",
        "count": "2",
        "reduceRight": false,
        "reduceExp": "",
        "reduceInit": "",
        "reduceInitType": "",
        "reduceFixup": "",
        "x": 1610,
        "y": 540,
        "wires": [
            [
                "cdd36146dca21ac6"
            ]
        ]
    },
    {
        "id": "cdd36146dca21ac6",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "判断当前天气信息是否有效",
        "func": "let {payload} = msg\n\nlet city = payload.city\n\nlet data = payload.data[city]\n//判断文件内是否存了这个地区的天气信息\nif(data) {\n    //判断天气信息是否过期，过期时间算4小时\n    if(new Date()-new Date(data.reporttime) <  4 * 60 *60 * 1000) {\n        return {\n            payload: {\n                code: 1,\n                data: data\n            }\n        }\n    } else {\n        return {\n        payload: {\n            code: 0,\n            city: city,\n            data: payload.data\n        }\n    };\n    }\n    \n} else {\n    return {\n        payload: {\n            code: 0,\n            city: city,\n            data: payload.data\n        }\n    };\n}\n\n\nlet res = {\n    payload: payload\n}\n\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 1880,
        "y": 540,
        "wires": [
            [
                "c3b575766d5fd07f"
            ]
        ]
    },
    {
        "id": "c3b575766d5fd07f",
        "type": "switch",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "property": "payload.code",
        "propertyType": "msg",
        "rules": [
            {
                "t": "eq",
                "v": "1",
                "vt": "str"
            },
            {
                "t": "neq",
                "v": "1",
                "vt": "str"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 2090,
        "y": 540,
        "wires": [
            [
                "b118ab6778e6d9b4"
            ],
            [
                "37f02e7c2ebd2027"
            ]
        ]
    },
    {
        "id": "37f02e7c2ebd2027",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "格式化地区选择",
        "func": "let res = {\n    payload: {\n        city: msg.payload.city\n    }\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 2320,
        "y": 580,
        "wires": [
            [
                "e78e9980959f8193"
            ]
        ]
    },
    {
        "id": "b118ab6778e6d9b4",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "格式化本地数据",
        "func": "let res = {\n    payload: msg.payload.data\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 2320,
        "y": 480,
        "wires": [
            [
                "a76cf5bdc5d8582d"
            ]
        ]
    },
    {
        "id": "a76cf5bdc5d8582d",
        "type": "link out",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "mode": "link",
        "links": [
            "552b298f10f7cf4b"
        ],
        "x": 3755,
        "y": 480,
        "wires": []
    },
    {
        "id": "552b298f10f7cf4b",
        "type": "link in",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "links": [
            "a76cf5bdc5d8582d"
        ],
        "x": 3935,
        "y": 480,
        "wires": [
            [
                "400e447cece05b1a"
            ]
        ]
    },
    {
        "id": "5f97c00d04379107",
        "type": "file in",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "filename": "forecasts.txt",
        "format": "utf8",
        "chunk": false,
        "sendError": false,
        "encoding": "none",
        "allProps": false,
        "x": 3770,
        "y": 680,
        "wires": [
            [
                "fd399620160e6e04"
            ]
        ]
    },
    {
        "id": "fd399620160e6e04",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "格式化存储消息",
        "func": "let res = {\n    payload: JSON.parse(msg.payload || '{\"data\":{}}')\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 3960,
        "y": 680,
        "wires": [
            [
                "65ab3b77263e35cb"
            ]
        ]
    },
    {
        "id": "ba1ed720f85507cc",
        "type": "inject",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payloadType": "str",
        "x": 290,
        "y": 660,
        "wires": [
            [
                "ffbf4b6f4095f633"
            ]
        ]
    },
    {
        "id": "3ba6c11f7bb8c9ee",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "func": "let {city,adcode,province,reporttime,casts,data } = msg.payload\nObject.assign(data,{\n    [adcode]:{\n        city:city,\n        adcode:adcode,\n        province:province,\n        reporttime: reporttime,\n        casts:casts\n    }\n})\nreturn {\n    payload:{\n        data: data\n    }\n}",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4370,
        "y": 660,
        "wires": [
            [
                "1c32e9cc321eb3b0"
            ]
        ]
    },
    {
        "id": "1c32e9cc321eb3b0",
        "type": "file",
        "z": "93431d81a8ddb5f8",
        "name": "forecasts",
        "filename": "forecasts.txt",
        "appendNewline": false,
        "createDir": true,
        "overwriteFile": "true",
        "encoding": "none",
        "x": 4540,
        "y": 660,
        "wires": [
            []
        ]
    },
    {
        "id": "65ab3b77263e35cb",
        "type": "join",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "mode": "custom",
        "build": "merged",
        "property": "payload",
        "propertyType": "msg",
        "key": "payload",
        "joiner": "\\n",
        "joinerType": "str",
        "accumulate": false,
        "timeout": "",
        "count": "6",
        "reduceRight": false,
        "reduceExp": "",
        "reduceInit": "",
        "reduceInitType": "",
        "reduceFixup": "",
        "x": 4190,
        "y": 660,
        "wires": [
            [
                "3ba6c11f7bb8c9ee"
            ]
        ]
    },
    {
        "id": "a25d38cb1b412ab9",
        "type": "comment",
        "z": "93431d81a8ddb5f8",
        "name": "初始化文件",
        "info": "",
        "x": 280,
        "y": 700,
        "wires": []
    },
    {
        "id": "b756bfb837b9d8f8",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取城市",
        "func": "let res = {\n    payload: msg.payload.city\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 780,
        "wires": [
            [
                "75d727507e0dad59"
            ]
        ]
    },
    {
        "id": "6d393852d8765650",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取省份",
        "func": "let res = {\n    payload: msg.payload.province\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 820,
        "wires": [
            [
                "c599c051b70a4004"
            ]
        ]
    },
    {
        "id": "1a47aa2f61014a98",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取更新时间",
        "func": "let res = {\n    payload: msg.payload.reporttime\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4020,
        "y": 860,
        "wires": [
            [
                "2c1de88cf13d17a6"
            ]
        ]
    },
    {
        "id": "75d727507e0dad59",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 5,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "城市",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 780,
        "wires": []
    },
    {
        "id": "c599c051b70a4004",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 3,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "省份",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 820,
        "wires": []
    },
    {
        "id": "2c1de88cf13d17a6",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 7,
        "width": 5,
        "height": 1,
        "name": "",
        "label": "时间",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 860,
        "wires": []
    },
    {
        "id": "2c38bf74933d4bf3",
        "type": "link out",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "mode": "link",
        "links": [
            "36fa90b5a0c0102c"
        ],
        "x": 3755,
        "y": 820,
        "wires": []
    },
    {
        "id": "36fa90b5a0c0102c",
        "type": "link in",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "links": [
            "2c38bf74933d4bf3"
        ],
        "x": 3815,
        "y": 820,
        "wires": [
            [
                "b756bfb837b9d8f8",
                "6d393852d8765650",
                "1a47aa2f61014a98",
                "84e714b6f4e9b3c6",
                "6627257a317b84bc",
                "145854514113326a",
                "7e6cfe96c879a814",
                "7badc7d124da7d46"
            ]
        ]
    },
    {
        "id": "84e714b6f4e9b3c6",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取天气",
        "func": "let res = {\n    payload: msg.payload.weather\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 900,
        "wires": [
            [
                "daaafd845910e3f3"
            ]
        ]
    },
    {
        "id": "daaafd845910e3f3",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 8,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "天气",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 900,
        "wires": []
    },
    {
        "id": "6627257a317b84bc",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取温度",
        "func": "let res = {\n    payload: msg.payload.temperature+'°'\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 940,
        "wires": [
            [
                "54454b4f7b20cd6c"
            ]
        ]
    },
    {
        "id": "54454b4f7b20cd6c",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 10,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "温度",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 940,
        "wires": []
    },
    {
        "id": "145854514113326a",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取风向",
        "func": "let res = {\n    payload: msg.payload.winddirection\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 980,
        "wires": [
            [
                "8dd7389318dbd418"
            ]
        ]
    },
    {
        "id": "8dd7389318dbd418",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 14,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "风向",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 980,
        "wires": []
    },
    {
        "id": "7e6cfe96c879a814",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取风力",
        "func": "let res = {\n    payload: msg.payload.windpower + '级'\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 1020,
        "wires": [
            [
                "cf006e3d202cb629"
            ]
        ]
    },
    {
        "id": "cf006e3d202cb629",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 16,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "风力",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 1020,
        "wires": []
    },
    {
        "id": "7badc7d124da7d46",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "获取湿度",
        "func": "let res = {\n    payload: msg.payload.humidity + '%'\n}\nreturn res;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 4000,
        "y": 1060,
        "wires": [
            [
                "d4481e360aeedbef"
            ]
        ]
    },
    {
        "id": "d4481e360aeedbef",
        "type": "ui_text",
        "z": "93431d81a8ddb5f8",
        "group": "0273a65c57aae0c4",
        "order": 12,
        "width": 4,
        "height": 1,
        "name": "",
        "label": "湿度",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "className": "",
        "x": 4210,
        "y": 1060,
        "wires": []
    },
    {
        "id": "8d89f5d347fd4cf0",
        "type": "ui_ui_control",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "events": "connect",
        "x": 280,
        "y": 540,
        "wires": [
            [
                "589f22432e35ca6a"
            ]
        ]
    },
    {
        "id": "589f22432e35ca6a",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "func": "return {\n    payload: '110108'\n};",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 470,
        "y": 540,
        "wires": [
            [
                "3f43a8f6106d9e56"
            ]
        ]
    },
    {
        "id": "e3d08351c3fba68b",
        "type": "function",
        "z": "93431d81a8ddb5f8",
        "name": "",
        "func": "\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 2990,
        "y": 840,
        "wires": [
            []
        ]
    },
    {
        "id": "2abc219f7bcbef2e",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 1,
        "width": 10,
        "height": 1
    },
    {
        "id": "880529f04ce11886",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 4,
        "width": 1,
        "height": 1
    },
    {
        "id": "b5a9dcc679da1227",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 6,
        "width": 1,
        "height": 1
    },
    {
        "id": "33eb97474de459ab",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 9,
        "width": 1,
        "height": 1
    },
    {
        "id": "9b1e39dc1e1f64fe",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 11,
        "width": 1,
        "height": 1
    },
    {
        "id": "2d1b1fea5b63129c",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 13,
        "width": 1,
        "height": 1
    },
    {
        "id": "1e79c2642674d113",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 15,
        "width": 1,
        "height": 1
    },
    {
        "id": "14eaf56393830744",
        "type": "ui_spacer",
        "z": "93431d81a8ddb5f8",
        "name": "spacer",
        "group": "0273a65c57aae0c4",
        "order": 17,
        "width": 6,
        "height": 1
    },
    {
        "id": "0273a65c57aae0c4",
        "type": "ui_group",
        "name": "HOME",
        "tab": "9382e8206c7b0f0a",
        "order": 1,
        "disp": true,
        "width": 15,
        "collapse": false,
        "className": ""
    },
    {
        "id": "9382e8206c7b0f0a",
        "type": "ui_tab",
        "name": "Home",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    }
]