ScriptRunner for Jira

//package com.adaptavist.sr.cloud.samples.events
def issueKey = issue.key
def newSummary = 'Updated by a script'
def cfName = 'Environment'

//get custom field of "seelct" type
def customFields = get('/rest/api/2/field')
        .asObject(List)
        .body
        .findAll { (it as Map).custom } as List<Map>
        
def cfEnvironmentId = customFields.find { it.name == cfName }?.id
def cfEnvironment = issue.fields[cfEnvironmentId]

//get custom field
def environment = cfEnvironment['value'] as String

def propertyKey = 'com.railsware.SmartChecklist.checklist'
def propertyValue

//compare field values
if (environment == 'Production') { 
    propertyValue  = '"- ToDo List\\n+ Checked\\nx Skipped\\n~ In Progress\\n# Another ToDo List\\n- Unchecked\\n> Quote line 1 https://rw.rw\\n> Quote line 2\\n> Quote line 3\\n"'
}else if (environment == 'Staging') { 
    propertyValue  = '"- Uno\\n+ Dos\\nx Tres\\n~ Quatro\\n"'
}
logger.info('property' + environment)

def result = put('/rest/api/2/issue/' + issueKey + '/properties/' + propertyKey)
        .header('Content-Type', 'application/json')
        .body(propertyValue)
        .asString()
if (result.status == 204) {
    return 'Success'
} else {
    return "${result.status}: ${result.body}"
}