How to use json array in order to use each item in the array to use values in a get request ?

Question

I have a json array data file (pre-prepared) each item in the json array contain data which I want to be able to use in order to send a request to a server using the json array data file , i know how to be able to send one request after extracting data from the file but I am struggling of getting all the data to send one after another.

I want to imitate the following behavior which I wrote already in java:

List<Integer> mtl = Arrays.asList(new Integer[]{1, 9, 257, 265});
for(int i=0;i<jsonArray.size();i++){

        JSONObject item = (JSONObject)jsonArray.get(i);
        int dataFlagType = Integer.parseInt(item.get("DataFlagType").toString());
        if(!(mtl.contains(dataFlagType))){
            sendPushStream(Long.parseLong(m_ap.sid),pid,subsId,item,domain,dnsName,dataFlagType);
        }else{

            lastMessage = (JSONObject)jsonArray.get(i);
        }

        Thread.sleep(100);

    }
  Thread.sleep(100);
    sendPushStream(Long.parseLong(m_ap.sid),pid,subsId,lastMessage,domain,dnsName,Integer.parseInt(lastMessage.get("DataFlagType").toString()));

where sendPushStream execute the post request itself.

Answer 1

I would suggest organizing your Test Plan as follows:

• HTTP Request (Protocol: file , Path: /path/to/your/file.json
  • JSON Extractor (relevant JSONPath query to extract values and store them into JMeter Variables)
• ForEach Controller to iterate the Variables coming from the JSON Extractor
  • HTTP Request - to mimic sendPushStream

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Another option is using your Java code from JSR223 Sampler or JUnit Request sampler, just make sure you package your helper code as .jar and add it to JMeter Classpath