Discovery patterns

[tarekbenhnia]

How can we create a discovery pattern that uses predefined REST message?

[pratikjagtap]

Hi @tarekbenhnia ,

Try below steps:
1. Create rest message

System Web Services → Outbound → REST Message

Make sure:

• Endpoint is working

• Authentication configured

• HTTP Method created (GET/POST etc.)

• Test response returns JSON/XML

Example:
REST Message Name: My_Custom_API
Method Name: getServerDetails

2.Create discovery pattern:

Discovery Definition → Patterns

Create new or edit existing:

• CI Class

• Identification Section

• Exploration Section

3. Add script in pattern to call rest message 

Add a Script Operation

Inside Pattern:
👉 Add Step → Operation = Script:

var r = new sn_ws.RESTMessageV2('My_Custom_API', 'getServerDetails');

// Example parameter
r.setStringParameterNoEscape('hostname', pattern.ciData.fqdn);

var response = r.execute();
var responseBody = response.getBody();
var httpStatus = response.getStatusCode();

gs.info("REST Status: " + httpStatus);
gs.info("REST Response: " + responseBody);

// Parse JSON
var json = JSON.parse(responseBody);

// Map values to pattern attributes
pattern.ciData.os_version = json.osVersion;
pattern.ciData.serial_number = json.serial;

4.map fields

5. Map Data to CI Attributes

Inside Pattern:

• Go to Attributes Section
• Use pattern.ciData.field_name

example: 
pattern.ciData.cpu_count
pattern.ciData.memory
pattern.ciData.manufacturer

If my response helped, please hit the 👍Thumb Icon and accept the solution so that it benefits future readers.

Regards,
Pratik

[shubhamseth]

@tarekbenhnia 

 

1. Create REST Message First

Navigate:
System Web Services → REST Message

• Create new REST Message

• Add HTTP Method (GET/POST)

• Test it → make sure response works

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2. Create / Open Discovery Pattern

Navigate:
Discovery → Patterns

• Open existing pattern OR create new

• Add new Step

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3. Add Step Type = “REST”

In Pattern Step:

• Operation = REST

• REST Message = Select your predefined REST

• HTTP Method = Choose method you created

No scripting needed.

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4. Parse Response

Next Step:

• Add Parse Variable / JSON Parse

• Map response fields to variables

Example:

• response.version → version

• response.name → ci_name

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5. Update CI Attributes

Add Step:

• Set Attribute

• Map parsed variables to CI fields

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6. Test Pattern

• Use Quick Discovery

• Check ECC Queue / Pattern Logs