JMeter- how to set send and receiving data in JSON file - by WebSocket

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I have a back end application (only back end) which sends data to customers by WebSocket. I testing this application using JMeter. In Jmeter I added plugin WebSocket Sampler by Peter.. Previously I am sending this data to customers by Postman. In my Json file incluge data about event, in which customers can subscribe. I have one question: How can I do it, that data, which is send in postman (in json file) will be send in JMeter?

Is it correctly way to read my json file in Jmeter? If not: Why not and how I can improve this?

  1. How I can the best to process data - to variable from my json file?

There is __FileToString() function, you can kill two birds with one with it, to wit:

  1. Read a file from the file system
  2. Store file contents into a JMeter Variable

For example the following expression:


will read file.json from JMeter's "bin" folder and store its contents into ${myVar} JMeter Variable:

If you have multiple JSON files and want multiple JMeter threads to send different files - the easiest way is going for Directory Listing Config plugin (can be installed using JMeter Plugins Manager)

how to set send and receiving data in JSON file, In Jmeter I added plugin WebSocket Sampler by Peter.. Previously I am sending this data to customers by Postman. In my Json file incluge data about event,  If you wrote the java client that connects with the server and if that works correctly, then you should compare the payload send by the java application with the payload by the WebSocket Sampler. Tip: use wireshark to compare the payloads and find the difference.

in attachmnent I show, what I set this

enter image description here enter image description here what is wrong and how is the easiest way to improve this? I'm not understand exactly, how I can add ${__FileToString(file.json,,myVar)} and variable myVar, and how exactly must be set FileToString and myVar in Thread group, as what of type test plan? how improve exactly?

pjtr / JMeter WebSocket Samplers / issues / #27, how to send json data using WebSocket request-response Sampler. Create Check the read-timeout set in the sampler, maybe it's to short. And open WebSocket Sampler with ws protocol inside the application. this is the error in log file 1.PNG The client did not receive any answer from the server. This post is about the JSON plugin for Apache JMeter™, which adds on to the ability to work with JSON (JavaScript Object Notation) formatted data in JMeter.The JSON plugin expands the default

OK I set this, and in View Result Three in ERR in Response Body is correctly return body json, so I dont know, why is **ERR* name It is correctly? and if not, why is wrong and how I can improve this?

JMeter WebSocket Samplers, This easy guide makes WebSocket Protocol load testing easy, and turns WebSocket request-response Sampler - Sends and receives text or binary The current sampler will explicitly set up a WebSocket connection. Request data accepts binary frames in hexadecimal format, for example 0x6d or 6d. The JSON_FILE variables will take the values from CSV file. Then, we need to use the __FileToString() JMeter function to reference the variable. Finally, when you will execute the test, it will extract the content from each file one by one and send as JSON in the request body.

WebSocket Testing With Apache JMeter – BlazeMeter, To install JMeter WebSocket Sampler do the following: If using Blazemeter – all the files should be provided along with the after the first response; Request Data – defines outgoing messages which basically responds to client with the same message it received. <groupId>javax.json</groupId>. Every time I have to get back to JMeter for load testing, I tend to forget the steps to setup my client. So this time taking notes so it saves me time in future. 1. Open a new instance of JMeter 2. Under Test Plan, add a HTTP Header Manager to set the content type…

The JMeter HTTP Raw Request Sampler, Learn how to use the HTTP Raw Request sampler plugin for JMeter to entered works both for the server connection and receiving the data Has the option to send files directly to the network without storing them in a variable. Set the Content-Type header value to “multipart/form-data” and add the  Request data: blazemeter; 5. Add a WebSocket Single Read Sampler to the Thread Group. The read sampler will receive the first frame from the server.

Jmeter Tutorial: How to Send a JSON File as Request in Body, To do that we make use of the JMeter's CVS Data Set Config element. In the CSV file, we have a column with the names of the JSON request files. You seem to think the data is send as UTF-8 characters, but that is not the case when sending binary data (it is when sending text data). If you want to send the number 100 as a string in a binary websocket message, you should encode it as ascii characters, so that would be 0x31 0x30 0x30.

  • anyone help me?