# How to send an image from mqtt in an email **URL:** \ **Category:** General\ **Created:** [22 May 2020 13:31 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087 "2020-05-22T13:31:56Z")\ **Posts on this page:** 20\ **Page:** 1

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 13:31 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/1 "2020-05-22T13:31:57Z")

Hi mates, im thinking on send an array coded in base64 to an email direction but only when i press a button. How could i do it? Using switch or function? Than you very much ---

**Author:** ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)\ **Post date:** [22 May 2020 13:45 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/2 "2020-05-22T13:45:02Z")

It depends. Where is the array coming from? Actually forget where it is coming from and replace that with an inject. That starts a msg going thru a flow, but what you want to do is halt that message until another msg is send by pressing a button. That means you need to join the two messages or use a gate (see node-red-contrib-simple-gate or node-red-contrib-queue-gate) that is controled by the switch. Next question is, what if another data message comes in? Should it pass if the switch is still open? Should the switch close after one msg goes thru? Laying out the logic in english will help you build your flow easier. ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 13:55 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/3 "2020-05-22T13:55:06Z")

Hi Sir. I want to send via email an image which has been decode to Base64 using base64 node, but only when i press a button. ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 13:56 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/4 "2020-05-22T13:56:33Z")

So i should use a node with two input, the button and the base64 output, and when i click de button send the base64 output. ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 13:58 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/5 "2020-05-22T13:58:32Z")

> [@carrero](#): > > I want to send via email an image > [@carrero](#): > > but only when i press a button which bit are you stuck on? > [@carrero](#): > > So i should use a node with two input no such thing. a node can only have 1 input. Use an inject (or dashboard button) --\> set payload to your image data --\> send to email. Question - is the image dynamic or hard coded/fixed? That makes things a little trickier and where I suspect you are falling down. ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 14:09 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/6 "2020-05-22T14:09:02Z")

Ok first of all im using a gate now, and it seems to work, but the email that i receive is a stuff like this : img\_datasrc ..... and a lot of words. How could i get the image and not the code ? Im a bit confused ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 14:21 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/7 "2020-05-22T14:21:34Z")

Try setting `msg.attachements`. [Here](https://discourse.nodered.org/t/multiple-picture-send-to-email/24477) as an example (there are tons of threads on this forum about "[email image](https://discourse.nodered.org/search?q=email%20image)") I'm certain one of them will get you going. ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 14:30 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/8 "2020-05-22T14:30:10Z")

Examples can not help me, because they are running node-red on the rpi and they use de camerapi node. Im just taking images from mqtt and codifying it to base64 and displaying in the dashboard pictures every 2 second (like a stream). And i want to take a simple picture and send it to my gmail account. Im using the correct flow but dont know how to use attachements. ---

**Author:** ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)\ **Post date:** [22 May 2020 14:48 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/9 "2020-05-22T14:48:12Z")

> [@carrero](#): > > but dont know how to use attachements. click on the email node then go to the `Info` tab in the sidebar. Scroll to the bottom and read about msg.attachments ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 14:53 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/10 "2020-05-22T14:53:28Z")

Sure the examples help you - you adapt them. Just because someone hasnt done it before they ceraintly have send images, they have converted buffers to base64 and back. So taking [this thread](https://discourse.nodered.org/t/emailing-image-from-ip-camera/9791/8) I made this... ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/2/820bf3c1a46881970ea302d64623467e53b900bc.png) and received this in my inbox... ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/e/9edceb0b05d374061b74a5026f7775dc1058dccf.png) sample flow (note i deleted the email node for privacy)... ```auto [{"id":"e73e2624.4459a8","type":"inject","z":"e360ac5b.0ab79","name":"base 64 image","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"NR Test image","payload":"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","payloadType":"str","x":160,"y":60,"wires":[["e5f61250.26cb4"]]},{"id":"e5f61250.26cb4","type":"base64","z":"e360ac5b.0ab79","name":"","action":"","property":"payload","x":320,"y":60,"wires":[["604a8eaf.6d4ac","d6ca2446.6053c8"]]},{"id":"604a8eaf.6d4ac","type":"change","z":"e360ac5b.0ab79","name":"Flow 3 : Setup mail content","rules":[{"t":"set","p":"cid","pt":"msg","to":"","tot":"date"},{"t":"set","p":"attachments","pt":"msg","to":"[{\t \"filename\": 'image_' & $replace($now(),\":\",\"_\") & '.jpg', \t \"content\": $$.payload,\t \"cid\": \"\" & cid & \"\"\t}]","tot":"jsonata"},{"t":"set","p":"topic","pt":"msg","to":"See attached image","tot":"str"},{"t":"set","p":"payload","pt":"msg","to":"'

'","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":180,"y":120,"wires":[["58495115.e70dc","e7e50356.464ba"]]},{"id":"58495115.e70dc","type":"debug","z":"e360ac5b.0ab79","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"true","targetType":"full","statusVal":"payload","statusType":"auto","x":170,"y":200,"wires":[]}] ``` ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 15:03 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/11 "2020-05-22T15:03:35Z")

I have just done your flow, but i still without getting the image , i dont know if i am useless or if your code doesnt work on my setup ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 15:10 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/12 "2020-05-22T15:10:32Z")

- after MQTT in node, add a change node (set flow.lastimage to msg.payload) - this will store the base64 image in flow.lastimage for later - connect the button to a change node (set msg.payload to flow.lastimage) then to a base64 node then to the "Flow 3" node Add DEBUG nodes to every output and give them all unique names After the node "flow 3" attach a DEBUG (set to show complete message). Expand the DEBUG output and show us whats happening. Open the context viewer and show us what is in flow.lastimage ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 15:19 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/13 "2020-05-22T15:19:38Z")

I dont know how to use debug panel in a properly way but im trying to do my best, im new on this platform sorry ;( ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 15:30 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/14 "2020-05-22T15:30:01Z")

Ok so do this... 1. Delete the bottom base64 node and connect the "set msg.payload" node to the "flow3" node and the debug "A" node. 2. Move the top "set flow.lastimage" AFTER the top base64 node Try again. Post screenshots again. ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 15:31 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/15 "2020-05-22T15:31:50Z")

Ps. Working without the debug nodes is like walking with a blindfold on and 2 hands tied behind your back. Watch this playlist - it's not long. After 30 minutes you will be an expert. [https://www.youtube.com/playlist?list=PLyNBB9VCLmo1hyO-4fIZ08gqFcXBkHy-6](https://www.youtube.com/playlist?list=PLyNBB9VCLmo1hyO-4fIZ08gqFcXBkHy-6) ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 15:35 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/16 "2020-05-22T15:35:05Z")

Like this sir? Thank you for your time, you are helping me a lot! I tried but i didnt get the image ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 15:41 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/17 "2020-05-22T15:41:44Z")

No. You have deleted your button. Nothing will trigger it. ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 15:44 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/18 "2020-05-22T15:44:05Z")

Yes true, i have just added it ---

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Post date:** [22 May 2020 15:44 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/19 "2020-05-22T15:44:38Z")

And the debug shows what? ---

**Author:** ![carrero](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@carrero](https://discourse.nodered.org/u/carrero)\ **Post date:** [22 May 2020 15:47 UTC](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087/20 "2020-05-22T15:47:03Z")

![Sin título](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/7/f7ba719475c22ff7bc74d6f7c37b5cb112c2f584.png) Same than before i believe [Next page](https://discourse.nodered.org/t/how-to-send-an-image-from-mqtt-in-an-email/27087.md?page=2)