Domoticz Capture Dahua Image and pass to Telegram
This is my first try with Node-Red.
Based on node-red-contrib-telegrambot, I wanted to grab an image, from one or more of my Dahua IP Cameras ,in case of an event (Door Opened, Doorbell pressed) and have that image transferred to me via Telegram.
Dahua has different types of Authentication Mechanisms (Basic , Digest e.g.) and each camera has it's own Capture URL. To achieve this I created several http-request nodes with for each camera its own url + authentication type.
Workings:
- It all starts with Domoticz/Out (the trigger), that Data is parsed into a JSON.
- Next I check if msg.payload.name has the item I'm interested in.
- I connect the msg.payload.name output with the Camera's names I want to trigger.
- The message that will be the telegram image caption will be created in the function.
- Next (and in my case it is a sub-flow) the camera selector calls the appropriate camera (url).
- In parallel in generates additional information for Telegram (put your clientid in here).
- The Join function will wait for message + image and if received create the message towards Telegram.
If all goes well you will receive an image with caption in Telegram.
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msg","outputs":1,"noerr":0,"initialize":"","finalize":"","x":1360,"y":1200,"wires":[["e8055f05.e5e4f"]]},{"id":"93f05e40.350ce","type":"join","z":"6bd7f13b.b61ad","name":"","mode":"custom","build":"merged","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":false,"timeout":"","count":"4","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":1670,"y":1580,"wires":[["4adbde36.75fd2"]]},{"id":"1d782852.063468","type":"change","z":"6bd7f13b.b61ad","name":"Move 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out","z":"6bd7f13b.b61ad","name":"","links":["cba4991a.750998","d972aadc.94cb78","693af8b9.876e28","dc24617f.29c84","83b60540.55b568"],"x":1535,"y":1200,"wires":[]},{"id":"cba4991a.750998","type":"link in","z":"6bd7f13b.b61ad","name":"","links":["e8055f05.e5e4f"],"x":1615,"y":1200,"wires":[["f6693e43.092d9"]]},{"id":"d972aadc.94cb78","type":"link in","z":"6bd7f13b.b61ad","name":"","links":["e8055f05.e5e4f"],"x":1615,"y":1300,"wires":[["bcdd71f8.aa603"]]},{"id":"693af8b9.876e28","type":"link in","z":"6bd7f13b.b61ad","name":"","links":["e8055f05.e5e4f"],"x":1615,"y":1380,"wires":[["554d039f.3a72ec"]]},{"id":"dc24617f.29c84","type":"link in","z":"6bd7f13b.b61ad","name":"","links":["e8055f05.e5e4f"],"x":1615,"y":1460,"wires":[["c3f9570f.bd6b78"]]},{"id":"83b60540.55b568","type":"link in","z":"6bd7f13b.b61ad","name":"","links":["e8055f05.e5e4f"],"x":1615,"y":1540,"wires":[["93f05e40.350ce"]]},{"id":"4adbde36.75fd2","type":"telegram 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\"\";\n\nif (name == \"Mailbox\") { message = \"Er is zojuist post bezorgd\"; }\nelse if (name == \"Deurbel (Bernini 15)\") { message = \"Er is zojuist aangebeld\"; }\nelse \n{\n if (msg.payload.nvalue === 1)\n {\n if (name.includes(\"Deur\")) { messagetail = \" geopend\"; }\n else message = name+\" Ingeschakeld\";\n }\n else if (msg.payload.nvalue === 0)\n {\n if (name.includes(\"Deur\")) { messagetail = \" gesloten\"; }\n else message = name+\" Uitgeschakeld\";\n }\n}\n\nmsg.payload = {\n \"camera\": camera,\n \"message\": message+messagetail,\n \"devicename\" : name,\n \"nvalue\" : nvalue\n}\n\nreturn msg","outputs":1,"noerr":0,"initialize":"","finalize":"","x":1180,"y":980,"wires":[["f2e0cb5f.45b7c8"]]},{"id":"47f23fca.fc06a","type":"change","z":"6bd7f13b.b61ad","name":"Camera 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