How to Pass Payload to Pre-Post Pattern Script?

[RK25]

I am working on an extension section where I need to pull a file from the device and trying to pass it down to Pattern Pre/Post Script (When to execute = Post sensor). In this process, I pull the data and storing it in pattern table>column but not sure how to get the data in the column into Pattern Pre/Post Script to further processing the data. Appreciate any insight.

[Sayali Gurav]

It sounds like you're working on a specific technical task related to server-side processing. To pass payload data to a pre/post processing script from a pattern extension section, you'll typically follow these steps:

1. Retrieve Data from Server:
- Use appropriate code (e.g., HTTP requests) to fetch data from the server.
- Store this data in a variable in your program.

2. Create a Pattern Variable:
- Define a pattern variable in your code to hold the data you retrieved from the server.

3. Pre-processing(if needed):
- If you need to perform any operations on the data before sending it to the script, do so here.

4. Execute the Script:
- Call the pre/post processing script and pass the pattern variable as an argument.

5. Post-processing (if needed):
- If there are any operations to be performed on the script's output, do so here.

Since you haven't specified a particular programming language or framework, I can't give you specific code. If you provide more context or mention the technology you're using, I can offer more detailed guidance.

[RK25]

Thanks for the steps. I am following the exact steps but do you know how to retrieve the variable created in step 2 into pre post pattern script?

[Sayali Gurav]

in ServiceNow, you can retrieve a variable created in a previous step into a pre/post pattern script by using the GlideForm API. You can access the variable's value using its name and the getValue() function. Here's an example of how you might do this in a pre/post pattern script:

// Assuming 'variable_name' is the name of the variable you want to retrieve
var variableValue = g_form.getValue('variable_name');

// Now you can use 'variableValue' in your script

Make sure to replace 'variable_name' with the actual name of your variable. This code assumes you're using a server-side script. If you're working with client-side scripts, you would use g_form.getControl() instead of g_form.getValue().