How to pass Json Request body from one HttpRequest as a value in the next http request? - rest

Question

I'm trying to capture payload (in JSON) created from an HTTP request and pass it as a value to the next API request.
Step1: Create Http Request Payload. Sample Below:
{
"fdCustomerId":"${cuid}",
"account":{
"type":"CREDIT",
"credit":{
"cardNumber":"ENC_[${Output2}]",
"nameOnCard":"John Smith",
"cardType":"${cardtype}",
"cardSubType": "${cardsubtype}",
"billingAddress":{
"type":"work",
"country":"US",
"primary":true
}
}
Step2: Capture the final Payload into a variable using post processes
var requestBody = ctx.getCurrentSampler().getArguments().getArgument(0).getValue();
vars.put("requestBody", requestBody);
log.info("###########################################Request Body are:##########" + requestBody);
Step3: Pass the RequestBody variable as a value to the next HTTP request
{
"category": "GBS_ExecMetrics_UCom",
"consumed": false,
"data": { "Test Case Id": "AB_CMS_006_CC_001_500_",
"Account Number": "0001210520779700304",
"Primary Card Number": "**${requestBody}**",
"Secondary Card Number": "0000377883144114646",
"Run Date Time": "03/26/201917:30"}
}
When I hit that to the endpoint I get below error message:
{"Error":"BadRequest: Please provide a valid Json"...
How to convert this to string or include escape characters with a function and pass the request-body?

Answer 1

My bad with the sample request syntax taken in step 1.Above steps worked as-is.
Corrected the syntax as below and was able to pass the json. Thanks.
{
"fdCustomerId":"${cuid}",
"account":{
"type":"CREDIT",
"credit":{
"cardNumber":"ENC_[${Output2}]",
"nameOnCard":"John Smith",
"cardType":"${cardtype}",
"cardSubType": "${cardsubtype}",
"billingAddress":{
"type":"work",
"country":"US",
"primary":true
}
}
}
}