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Fetch SolarMAN PV data
Raw
README.md

Example of how to fetch data from Solarman PV OPEN API v1.1.6

To avoid unnecessarily struggling to connect Node-RED to the Solarman PV OPEN API (globalapi.solarmanpv.com).

Compatibility

Developed and tested on Node-RED 4.

Prerequisites

  • app ID and app secret, request by sending an email to [email protected]
  • login details, register an account with Solarman Smart (home.solarmanpv.com)
  • the password has to be SHA256 encrypted first (you can use an online convertor, crypto-js or a Node-RED package), Solarman recommends this online tool

Set-up

  • fill in app ID, app secret, email and password (SHA256 encrypted) in the set flow data node

Request steps

  1. request (and store) the access token with account token
  2. request (and store) the station ID with station list
  3. request (and store) the device ID with station device
  4. request historical data with device historical or current data with device currentData

Trouble shooting

Raw
flow.json
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{
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"vt": "str"
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{
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"vt": "flow"
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{
"p": "payload.deviceId",
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"vt": "flow"
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{
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"vt": "flow"
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]
@killamilla0815
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killamilla0815 commented Jul 11, 2025 •
edited by durable-developer
Loading

Hello @durable-developer

I copied the flow into my Node-Red Docker on Pi application and entered the required details.
1st thing to notice is about the PW: this must not be entered in clear text but SHA256 hashed, then the API communcation worked for me.

Now I am struggling about another limitation: I've added some add. debug nodes to the flow in order to check the structure of the API output data, but the debug window is automatically wiped after around 10-15s which is far to less to go through all the data.

Google tells me that the auto wiping is probably due to limited cache memory on the instance that runs Node-Red, is there any chance to preserve the debug output ?

I was also trying to utilize the "write file" node, but this didnt work for, no file was generated.

Thanks for your support.

@durable-developer
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Author

durable-developer commented Jul 12, 2025 •
edited
Loading

@killamilla0815

Thank you for using the flow and contributing!

I copied the flow into my Node-Red Docker on Pi application and entered the required details. 1st thing to notice is about the PW: this must not be entered in clear text but SHA256 hashed, then the API communcation worked for me.

Indeed the password should be SHA256 encrypted. I am not sure how it was working for me before. I added this requirement to the instructions. Great feedback!

Now I am struggling about another limitation: I've added some add. debug nodes to the flow in order to check the structure of the API output data, but the debug window is automatically wiped after around 10-15s which is far to less to go through all the data.

This sounds like a Node-RED issue/limitation. I am not running Node-RED within a docker and debugging has never been a problem for me. Not sure what the solution would be. It might also limit Node-RED nodes.
But I have several functions to format the SolarMAN response into chart data. I can share some to help you. What data specifically are you trying to get from which response?
Also, the SolarMAN API documentation of course has an example response for each request, maybe that can help.

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