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silverbullet007
Frequent Visitor

Extract data from email

I'm new to power automate and have been working on setting up a flow for an email that is generated from our wireless network controller. 

 

I had originally created the flow using a 

split(body('html_to_text'),outputs('EnterKey'))
to give me this output:
[
  "‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍",
  "‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍",
  "‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍",
  "‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍",
  "‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍",
  "‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍",
  "",
  "",
  "",
  " ",
  "",
  "",
  "",
  "SUMMARY REPORT FOR NETWORKS TAGGED 'LIBRARY'",
  "",
  "",
  "APRIL 2024",
  "",
  "",
  "SSID: \"xxxxxx\"",
  "",
  "",
  "",
  "",
  "ANOMALIES",
  "",
  " ",
  "    AVERAGE USAGE FOR A SUNDAY",
  "    ",
  "    Bandwidth usage was 897% higher than the last 10 Sundays recorded",
  "",
  " 2. View 2 more",
  "",
  "",
  "USAGE STATS",
  "",
  "Total Data Transferred",
  "2.05",
  "TB",
  "Total Data Downloaded",
  "1.77",
  "TB",
  "Total Data Uploaded",
  "286.55",
  "GB",
  "",
  "",
  "CLIENT STATS",
  "",
  "Total Unique Clients",
  "2892",
  "Average # of Clients per Day",
  "228",
  "Average Usage per Client",
  "744.6",
  "MB",
  "",
  "",
  "CLIENTS PER DAY",
  "",
  "",
  "",
  "",
  "SPLASH PAGE",
  "",
  "Number of Clients to Request Page",
  "2234",
  " ",
  "Number of Clients Granted Access",
  "2115",
  " ",
  "",
  ""
]
 
I used the index position to retrieve these two items I needed using a split function.
split(outputs('Split_Body_Text')[65],'')
split(outputs('Split_Body_Text')[66],'')
 
  "Number of Clients Granted Access",
  "2115",
 
This month the flow failed and I realized the automated email added more lines at the top to include some ANOMALIES which I had not ran across yet. 
 
I made changes to the code to get the data by getting the length of the array and subtracting to get the data I need and this may work since that data has always been at the bottom of the email. 
outputs('Split_Body_Text')?[sub(length(outputs('Split_Body_Text')),5)]
outputs('Split_Body_Text')?[sub(length(outputs('Split_Body_Text')),4)]
 
But while I was working on this, I was wondering if there is a better way to find the position of text in an array where the position could change? 
 
Could I search for  "Number of Clients Granted Access" and get a index position and then use it to return the two items.
 
Just wondering how I could better code it to allow dynamic changes in the email. 
 
Thanks for any advice.
1 ACCEPTED SOLUTION

Accepted Solutions
c_stringham_
Frequent Visitor

Hey @silverbullet007,

 

I don't know if this is the best way, but what I would try to search for the "Number of Clients Granted Access" line is to first create an integer variable to track the index position, and set this to 0 initially. Then create a 'Do Until' action like the one here, just swap the split out with the one you have been using already and the name of the variable with whatever you set that to.

c_stringham__0-1715281610361.png

You now have a variable with the index of the 'Number of Clients Granted Access' line and if you do add(variables('Index'),1) you should have the index for the number associated with that value as well.



View solution in original post

6 REPLIES 6
c_stringham_
Frequent Visitor

Hey @silverbullet007,

 

I don't know if this is the best way, but what I would try to search for the "Number of Clients Granted Access" line is to first create an integer variable to track the index position, and set this to 0 initially. Then create a 'Do Until' action like the one here, just swap the split out with the one you have been using already and the name of the variable with whatever you set that to.

c_stringham__0-1715281610361.png

You now have a variable with the index of the 'Number of Clients Granted Access' line and if you do add(variables('Index'),1) you should have the index for the number associated with that value as well.



Thanks so much for helping me out with that. I will give it a try tomorrow.  Thanks

@silverbullet007 

 

For a completely no code and flexible solution, Encodian's Utility - Extract Text between Values actions is a good option. 

 

It's a Utility action so only uses 0.05 Encodian credits per operation (good for high volumes).

 

I can't see the format of your email pre the split but I image the following inputs would give the value "2115":

 

Start Value: "Number of Clients to Request Page"

End Value: "" i.e. leave blank to go to end of string

Trim Result: Yes i.e. removes all white space before and after the 2115

 

 

AlexEncodian_0-1715299036599.png

 

 

 

@c_stringham_ 

 

Thanks so much for the help. I was able to set the flow up using your information and it helped tremendously. 

 

I did come up with another question related to the Do Until Loop - Change Limit Count.  I can set the limit high enough to not worry, however I thought it may be best to set it to an expression and use the length of the collection. example  length(outputs('Split_Body_Text'))

However it fails to save with error: The 'limit' property in action 'Do_until' is referencing action(s) 'Split_Body_Text'. Limit property can only reference trigger inputs, trigger outputs and parameters.'.'.

 

Would there be a way to set it to the the number of elements in an array but only reference trigger inputs, outputs and parameters.

 

20240510_102758 (2).png

20240510_102732 (2).png

@silverbullet007,

 

The limit on the 'Do Until' loop is there to prevent flows from running indefinitely should the condition you enter for the loop to stop be impossible to achieve. Due to that reason, I don't believe that you are allowed to enter a dynamic value in that field.

 

The error you are getting seems to be in reference to if you were using the 'Do Until' loop in an Azure Logic App, as you can pass in additional system parameters as well as trigger data in Logic Apps. (https://learn.microsoft.com/en-us/azure/logic-apps/edit-app-settings-host-settings?tabs=azure-portal)

 

I believe that the expectation with the limit for Power Automate is that you know your dataset and should set the value to be something large enough to contain your dataset.

Thank You for elaborating on it. You implementation worked well and I used it for the other data collected in the email that way if any formatting or other data added, this should take care of it. 

 

Thanks Again! 

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