I am totally new to groovy script and would like some help to solve this out. I have a JSON response I want to manipulate and get desired parameters back by avoiding duplication. The Json response does not have indexes like 0,1,2.. that I can iterate through.
Here is the response that I want to work with:
{
"AuthenticateV2" : {
"displayName" : "Verification of authentication",
"description" : "notification ",
"smsTemplate" : "authentication.v2.0_sms",
"emailHeaderTemplate" : "v2.0_header",
"emailBodyTemplate" : "html",
"parameters" : {
"displayName" : "USER_DISPLAY_NAME",
"actionTokenURL" : "VERIFICATION_LINK",
"customToken" : "VERIFICATION_CODE"
},
"supportedPlans" : [
"connectGo"
]
},
"PasswordRecovery" : {
"displayName" : "Verification of password recovery",
"description" : "notification",
"smsTemplate" : "recovery.v1.0_sms",
"emailHeaderTemplate" : "recovery.v1.0_header",
"emailBodyTemplate" : "recovery.v1.0_body_html",
"parameters" : {
"displayName" : "USER_DISPLAY_NAME",
"actionTokenURL" : "VERIFICATION_LINK",
"customToken" : "VERIFICATION_CODE",
"adminInitiated" : false,
"authnId" : "AUTHENTICATION_IDENTIFIER",
"authnType" : "EMAIL",
"user" : {
"displayName" : "USER_DISPLAY_NAME"
}
},
"supportedPlans" : [
"connectGo"
]
},
"PasswordReset" : {
"displayName" : "password reset",
"description" : "notification",
"smsTemplate" : "recovery.v1.0_sms",
"emailHeaderTemplate" : "recovery.v1.0_header",
"emailBodyTemplate" : "html",
"parameters" : {
"displayName" : "USER_DISPLAY_NAME",
"user" : {
"displayName" : "USER_DISPLAY_NAME"
}
}
The expected output that I want to have:
{
"displayName" : "USER_DISPLAY_NAME",
"actionTokenURL" : "VERIFICATION_LINK",
"customToken" : "VERIFICATION_CODE",
"customToken" : "VERIFICATION_CODE",
"adminInitiated" : false,
"authnId" : "AUTHENTICATION_IDENTIFIER",
"authnType" : "EMAIL"
}
I need to retrieve all fields under parameters tag and also want to avoid duplication
You should first get familiar with parsing and producing JSON in Groovy.
Then, assuming the provided response is a valid JSON (it's not - there are 2 closing curlies (}
) missing at the end) to get all the parameters
keys merged into one JSON we have to convert the JSON string into a Map
object first using JsonSlurper
:
def validJsonResponse = '<your valid JSON string>'
Map parsedResponse = new JsonSlurper().parseText(validJsonResponse) as Map
Now, when we have a parsedResponse
map we can iterate over all the root items in the response and transform them into the desired form (which is all the unique parameters
keys) using Map::collectEntries
method:
Map uniqueParameters = parsedResponse.collectEntries { it.value['parameters'] }
Finally, we can convert the uniqueParameters
result back into a pretty printed JSON string using JsonOuput
:
println JsonOutput.prettyPrint(JsonOutput.toJson(uniqueParameters))
After applying all the above we'll get the output
{
"displayName": "USER_DISPLAY_NAME",
"actionTokenURL": "VERIFICATION_LINK",
"customToken": "VERIFICATION_CODE",
"adminInitiated": false,
"authnId": "AUTHENTICATION_IDENTIFIER",
"authnType": "EMAIL",
"user": {
"displayName": "USER_DISPLAY_NAME"
}
}
If you want to get rid of user
entry from the final output just remove it from the resulting uniqueParameters
map (uniqueParameters.remove('user')
) before converting it back to JSON string.