Node-RED Flow Youtube示例

Kaipi Lab大约 3 分钟

Node-RED Flow Youtube示例

Node-REDopen in new window 是创建这些应用程序的理想软件解决方案。它既可以作为独立程序使用，也可以作为Home Assistant和ioBroker的插件使用，使您可以进一步增强AWTRIX Light系统的功能。

这是一个演示，请按三角形展开。

将Youtube应用程序添加为NodeRED Flow的示例

[
  {
    "id": "2a59d30d07abe14f",
    "type": "group",
    "z": "54b42d8d.cda474",
    "style": {
      "stroke": "#999999",
      "stroke-opacity": "1",
      "fill": "none",
      "fill-opacity": "1",
      "label": true,
      "label-position": "nw",
      "color": "#a4a4a4"
    },
    "nodes": [
      "f0f17299.3736c",
      "dc7878f9.4756c8",
      "f234aae371d72680",
      "555bb8624b88c9c3",
      "69c388146e28049d",
      "a349ade5a57f7537"
    ],
    "x": 34,
    "y": 39,
    "w": 892,
    "h": 122
  },
  {
    "id": "f0f17299.3736c",
    "type": "inject",
    "z": "54b42d8d.cda474",
    "g": "2a59d30d07abe14f",
    "name": "",
    "props": [],
    "repeat": "3600",
    "crontab": "",
    "once": true,
    "onceDelay": 0.1,
    "topic": "",
    "x": 130,
    "y": 120,
    "wires": [
      [
        "a349ade5a57f7537"
      ]
    ]
  },
  {
    "id": "dc7878f9.4756c8",
    "type": "http request",
    "z": "54b42d8d.cda474",
    "g": "2a59d30d07abe14f",
    "name": "",
    "method": "GET",
    "ret": "obj",
    "paytoqs": "query",
    "url": "https://youtube.googleapis.com/youtube/v3/channels",
    "tls": "",
    "persist": false,
    "proxy": "",
    "insecureHTTPParser": false,
    "authType": "",
    "senderr": false,
    "headers": [],
    "x": 430,
    "y": 120,
    "wires": [
      [
        "f234aae371d72680"
      ]
    ]
  },
  {
    "id": "f234aae371d72680",
    "type": "function",
    "z": "54b42d8d.cda474",
    "g": "2a59d30d07abe14f",
    "name": "parser",
    "func": "var json = msg.payload;\nvar subscriberCount = json.items[0].statistics.subscriberCount;\n\nmsg.payload = { \"text\": subscriberCount, \"icon\": 5029};\nreturn msg;",
    "outputs": 1,
    "noerr": 0,
    "initialize": "",
    "finalize": "",
    "libs": [],
    "x": 590,
    "y": 120,
    "wires": [
      [
        "555bb8624b88c9c3"
      ]
    ]
  },
  {
    "id": "555bb8624b88c9c3",
    "type": "mqtt out",
    "z": "54b42d8d.cda474",
    "g": "2a59d30d07abe14f",
    "name": "",
    "topic": "ulanzi/custom/youtube",
    "qos": "",
    "retain": "",
    "respTopic": "",
    "contentType": "",
    "userProps": "",
    "correl": "",
    "expiry": "",
    "broker": "346df2a95aac5785",
    "x": 800,
    "y": 120,
    "wires": []
  },
  {
    "id": "69c388146e28049d",
    "type": "comment",
    "z": "54b42d8d.cda474",
    "g": "2a59d30d07abe14f",
    "name": "Youtube Follower",
    "info": "Just enter your channelID and Youtube API key in the \"Data\" node  and set your AWTRIX MQTT prefix.\nUses Icon 5029 (LM)",
    "x": 140,
    "y": 80,
    "wires": []
  },
  {
    "id": "a349ade5a57f7537",
    "type": "function",
    "z": "54b42d8d.cda474",
    "g": "2a59d30d07abe14f",
    "name": "Data",
    "func": "msg.payload = { \"id\": \"UCpGLALzRO0uaasWTsm9M99w\", \"key\": \"XXX\", \"part\":\"statistics\"}\nreturn msg;",
    "outputs": 1,
    "noerr": 0,
    "initialize": "",
    "finalize": "",
    "libs": [],
    "x": 270,
    "y": 120,
    "wires": [
      [
        "dc7878f9.4756c8"
      ]
    ]
  },
  {
    "id": "346df2a95aac5785",
    "type": "mqtt-broker",
    "name": "",
    "broker": "localhost",
    "port": "1883",
    "clientid": "",
    "autoConnect": true,
    "usetls": false,
    "protocolVersion": "4",
    "keepalive": "60",
    "cleansession": true,
    "birthTopic": "",
    "birthQos": "0",
    "birthPayload": "",
    "birthMsg": {},
    "closeTopic": "",
    "closeQos": "0",
    "closePayload": "",
    "closeMsg": {},
    "willTopic": "",
    "willQos": "0",
    "willPayload": "",
    "willMsg": {},
    "userProps": "",
    "sessionExpiry": ""
  }
]

Node-RED Flow检索并显示指定YouTube频道的订阅者计数。该Flow由以下节点组成：

Inject: 这个Node定期（每小时）或手动触发Flow。
Data (Function): 这个Node包含YouTube channel ID和YouTube API Key。将“XXX”替换为你的 YouTube API Key和 Youtube ID。The node constructs a payload containing the channel ID, API key, and required statistics and sends it to the "HTTP request" node. 该节点构造一个包含通道 ID、API 密钥和所需统计信息的有效负载，并将其发送到“HTTP 请求”节点。
HTTP request: 这个Node向YouTube API发送 GET 请求以检索频道的统计信息。 The response is returned as a JavaScript object and passed to the "parser" node. 响应作为JavaScript对象返回并传递给“解析器”节点。
parser (Function): This node extracts the subscriber count from the received channel statistics and constructs a payload containing the count and an icon (Icon 5029). The payload is sent to the "MQTT out" node. 此节点从接收到的信道统计信息中提取用户计数，并构造包含计数和图标（图标 5029）的有效负载。有效负载被发送到 “MQTT out” 节点。
MQTT out: 该节点将负载发布到本地MQTT服务器上的MQTT主题“ulanzi/custom/youtube”。需要修改此节点中的主题来适配你的mqtt前缀。
Comment (Youtube Follower): 此节点包含有关流的其他信息。它不会影响流的功能。

要使用此流程，请将“Data”节点中的“XXX”替换为您的 YouTube API 密钥，并确保“MQTT out”节点中的 MQTT 代理设置正确。

然后，该流程将检索指定 YouTube 频道的订阅者数量，并将其与图标一起显示在您的 AWTRIX 设备上。此流程使用 LM 中的图标 5029（只需从 awtrix Web 界面下载即可）。您可以将Flow中的图标改为您喜欢的图标。