I have an application it will upload every captured images to the server. Now I have to perform server performance testing. I have to verify how it will perform if 100 devices are trying to upload the photos to same server at a time.
You need to consider next few things:
Add a HTTP Header Manager with relevant User-Agent string to simulate mobile browser or application.
Make sure that POST request is being used and the "Use multipart/form-data for POST" box is checked.
See Upload and Download Scenarios with Apache JMeter guide for detailed walkthrough.
Related
I have a very peculiar scenario where the raw data of the file has to be sent. I have tried following options and still wasn't successful.
Http Request with form-data disabled but still its sending as multi-part which is not acceptable by the system
Sending the file contents in request body by following methods . They were successful however the file uploaded was encoded in some format so the MD5 hash of the original file and uploaded file doesn't match. Hence the uploaded file looked different from original
FileToString Method
Reading the file using HTTP request . Capturing the response and passing to the body of File upload request
Using Https Raw data . Since its https request, it cannot be used.
All possible encoding formats available but nothing worked as the application just expects the raw data without any encoding.
You're supposed to provide an example successful request and the file you're uploading, it can be captured using a sniffer tool like Wireshark or Fiddler, only this way we'll be able to come up with the relevant JMeter configuration required to replicate the request.
In the mean time I can only suggest trying recording the request using JMeter's HTTP(S) Test Script Recorder
Start JMeter's HTTP(S) Test Script Recorder
Import JMeter's certificate into your browser (or system certificates storage if the upload is being performed by other application), see HTTPS recording and certificates chapter of JMeter's documentation on HTTP(S) Test Script Recorder
Copy the file you're going to upload to "bin" folder of your JMeter installation (or JMeter's current working directory if you're launching it from a desktop shortcut or whatever), see Recording File Uploads with JMeter for more details
Perform the upload in the browser (or other application)
JMeter should intercept the request and generate proper HTTP Request sampler and HTTP Header Manager
I have a relatively large app where there are a lot of user profile pages. I want to make it so that if you share one of the user's profile page it will preview their name and picture on social medias like FB and Twitter (think sharing a Twitch streamer's page on Twitter). I used create-react-app to start the project so I don't have server side rendering or any middleware for pre-rendering tools. Is there another way I can accomplish this?
There two ways you can get this to work
Is the server your files via express server and check for who has the made the request by checking user-agent header from request and if its a bot instead of sending them the usual response you can fetch the required user profile data and use that data to populate the open-graph metatags and return them the HTML with those metatags.
Second way would be to use a network interceptor from the CDN you're using to identify the who is requesting the page (either bot or a person) if its a bot, make a request to your backend to fetch related data and send them the HTML with populated metatags.
Explained approach
Every time a request comes into our server, it comes with a header value user-agent which tells the server who is requesting the resources (human or a bot from Facebook trying to do link preview). Just by comparing a list of known user-agent (so it won't work on all but will work all know platforms and 90% of others.)
Let's say we have something.com where we want the link preview and let's say a request comes for something.com/john. What we will do is check for request that is coming to the server and will check for user-agent property, if its a human it will be redirected to our normal site but if its a bot (so it just wants an HTML for link preview) what we are going to do is since it's our server we can grab the data of akkshay and set the proper metatags inside our HTML and send it back as a response.
So what happens here is whenever a human tries to go for something.com/john he will be redirected to our landing page as he is more concerned about what he sees on his browse but when a bot comes in we will send it HTML response with proper metatags as its the link previews which is the concern for the bot.
This thing can be done on our express server with something like this. But this can also be done infrastructure level.
I am using jmeter for performance testing
but jmeter only accept JS call they can not pass request like URL.
so my question is that how can i user jmeter as a normal browser for
load testing ?
As per JMeter project main page:
JMeter is not a browser, it works at protocol level. As far as web-services and remote services are concerned, JMeter looks like a browser (or rather, multiple browsers); however JMeter does not perform all the actions supported by browsers. In particular, JMeter does not execute the Javascript found in HTML pages. Nor does it render the HTML pages as a browser does (it's possible to view the response as HTML etc., but the timings are not included in any samples, and only one sample in one thread is ever displayed at a time).
It is possible to configure JMeter to behave more like a real browser when it comes to normal HTTP requests given you:
Tell JMeter to download embedded resources (scripts, styles, fonts, images, sounds, etc.) in parallel
Add HTTP Cache Manager to mimic browser cache when it comes to handling the aforementioned embedded resources
Add HTTP Cookie Manager to represent browser cookies
Add HTTP Header Manager to represent browser headers
JMeter will not automatically kick off the requests triggered by JavaScript as it doesn't have full JavaScript runtime so you will have to add a separate HTTP Request sampler per such a request. If you need to simulate several AJAX requests - consider putting them under the Parallel Controller as browsers execute AJAX request simultaneously
As a part of routine healthcheck in Siebel application we open few documents from different navigation in Siebel application and check whether it is viewable in browser or not.
If i want to automate then can we prepare some script in which it returns the response code of the documents.
For ex :- 404 error code means not available. In the same way html response code between 200 to 400 means everything is alright.
OR
Any other ways in which i can know whether documents are viewable in browser or not.
Given that the browser directly accesses the documents from the browser, it would be best to record the manual executed event and then replayed. Tools like JMeter or SoapUI. As it is probably a few requests at most one can look at recreating them using wget, or curl.
It is also possible to make this part of a larger test approach and include them in a open source test approach like Robot Framework. It has a HTTP Requests library that allows you to perform tests using http requests. This in addition to the Web service, web browser, database and many other types of libraries that allow an integrated test approach.
We are developing an application for Web. Inside that application, to download a file, I have created a WCF Rest service that will download the files based on this link Download using WCF Rest. The purpose is to check for user authentication before downloading. I used streaming concept to download the file. It is now that I have found out few things
When the user downloads the file, he is not able to determine what are the file size and the time remaining. I analyzed and found out that the reason is because, it’s using the “Transfer Encoding: chunked” in the header so that the file will be downloaded in chunks. One of the advantages is that the memory consumption is less in the server even when there are many users downloading a file. So I thought of adding “Content-Length” header, but I found out that you can use only either one of the headers not both. So I was thinking how Hotmail and Gmail were downloading attachments. From my investigation, I found out that Hotmail uses chunking header whereas Gmail uses Content-length header. Also in the case of Gmail, it is also checking if the session is active or not then downloads the file accordingly. I want to achieve the following
a) Like Gmail, I want to check if the session is active or not and then downloads the files accordingly. What will be the method for me to implement it?
b) When downloading the file, I want to use Content-Length header instead of Chunked header. Also the memory consumption should be less. Can we achieve it in WCF Rest? If so how?
c) Is it possible for me to add a header in WCF that will display the file size in the browser Downloads window?
d) When downloading an inline images from WCF, I found out that the image after loading is not cached in local machine. I was thinking that once an image is shown in an HTML page, it will get automatically cached and the next time user visits the page, the image will load from cache instead from server. I want to cache the inline images to cache, what is the option that I can use for it? Are there any headers that I need to specify when downloading an inline image from server?
e) When I download a zip file using WCF in IPhone Chrome browser, it’s not downloading at all. But the same link works in Android Chrome browser. What could be the problem? Am I missing header in WCF?
Are there any methods that will achieve the above?
Regards,
Jollyguy