Hi I am downloading file from server. I have to take meta-information using HEAD method. andybody help me to implement the HEAD method to get "last-modified" date and modified-since date.
here is my code:
HttpClient client= new DefaultHttpClient();
//HttpGet get = new HttpGet(url);
HttpHead method = new HttpHead(url);
HttpResponse response= client.execute(method);
Header[] s=response.getAllHeaders();
System.out.println("THe header from the httpclient:");
for(int i=0; i < s.length; i++){
Header hd = s[i];
System.out.println("Header Name: "+hd.getName()
+ " " + " Header Value: " + hd.getValue());
}
//here I have to implement the HEAD method
The difference between a HEAD and a GET method is that the response will not contain a body. Otherwise, the two are the same. In other words, a HEAD method gets all the headers. It is not used for getting data of a single header, it just retrieves all headers at once.
In the code example you already have all headers, because you executed a HEAD request. In the for-loop you output all data from the headers. If the last-modified is not there, the server did not provide it for this resource.
Note that the if-modified-since is a request header field, not a response header field. You can set it to instruct the server to only return the resource if the modified-since date has passed. If you intend to only retrieve a resource when it has been modified on the server, you can just use a GET request with the if-modified-since header set. To know whether a server supports this header, check this tool: http://www.feedthebot.com/tools/if-modified/
Related
I created a little grpc server on my machine and Im wondering how to debug array message in browser.
Example: for one field message in gRPC with handler "/greeting" and "name" field I can request
localhost:7000/greeting?name=Slowpoke
In this way I can debug and see what really happens on my server.
How to do same moves with protobuf scheme like:
message NamesQuery {
repated string name = 1;
}
How does request in browser should look like?
By trial and error, I found the following solution for next scheme with INT fields for GET request.
message SomeNumbers {
repeated int list = 1;
}
This request:
localhost:7000/some-request?list=2&&list=12&&list=22
and I've got next message:
{"list":[2,12,22]}
I'm running Performance test in JMeter where I have to pass Authorization details using Header Manager.
Here is my code:
String headerName = "Authorization";
String headerValue = "Basic MyKey MyValue";
Header bcHeader = new Header(headerName,headerValue);
HeaderManager hm = new HeaderManager();
hm.setProperty(TestElement.TEST_CLASS, HeaderManager.class.getName());
hm.add(bcHeader);
hm.add(new Header("Content-Type", "application/json"));
hm.add(new Header("Access-Control-Allow-Origin", "*"));
And I'm facing UnAuthorized error.
Please let me know if there is another way to write the code.
Thanks.
Normally you should be using HTTP Authorization Manager in order to bypass Basic HTTP Auth challenge.
However if you're going to manually construct Authorization header be aware that it should have the following form
Name: Authorization
Value: Basic
After Basic you need to provide username and password separated by colon and encoded into Base64. So if your username is MyKey and password is MyValue you should encode the string MyKey:MyValue and add the result to the header so it would look like:
Basic TXlLZXk6TXlWYWx1ZQ==
When it comes to Java code it would be something like:
String headerName = "Authorization";
String username = "MyKey";
String password = "MyValue";
Header bcHeader = new Header(headerName,
"Basic " +
Base64.encodeBase64String((username + ":" + password).getBytes(StandardCharsets.UTF_8)));
HeaderManager hm = new HeaderManager();
hm.add(bcHeader);
hm.add(new Header("Content-Type", "application/json"));
hm.add(new Header("Access-Control-Allow-Origin", "*"));
hm.setName(JMeterUtils.getResString("header_manager_title"));
hm.setProperty(TestElement.TEST_CLASS, HeaderManager.class.getName());
hm.setProperty(TestElement.GUI_CLASS, HeaderPanel.class.getName());
If you are getting authorization header value somewhere in your response you can extract and dynamic values and apply correlations to the script.
Here is what you have to do. Extract Authorization header value using regular expressions and store it in a jmeter variable lets assuem you have saved it as Auth .
Add a header manager (Right click on thread group -->config element--> Header manager) according to jmeter scoping rules.
Use ${variablename} and replace the hard coded header value with ${variablename} ,as we saved it in Auth variable you can use ${Auth}.
You can add headers to header manager click on add and give header name and value as shown below
i'm getting authorization value in request 1's reponse as shown below
so to extract this add a regular expression extractor to the same request (request 1) as shown below.
Now we can use ${Auth} in header manager , add header manager to request 2 and give header name and values as shown below
you can see in the results authorization has passed its value
For more information on Extracting variables please follow this link
Let me know if it helps
I'm trying to make a get request to a service of mine with a valid URL string (if I put it into my browser, I get the expected response). However, when I run the following function:
def dispatch_uri(url)
uri = Addressable::URI.parse(url)
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Get.new(uri.request_uri)
response = http.request(request).to_s
response
end
The response variable holds a Net::HTTPVersionNotSupported, which has no body and isn't, of course, the expected response.
What am I doing wrong and how should I address this problem?
So, the answer is simpler than I thought.
Net::HTTP is both unable to work with an UTF-8 URL or Addressable::URI, however, Addressable gives us a fantastic tool to solve this problem: normalize.
Normalize converts your UTF=8 to a codified ASCII HTML compatible string, so a working code is:
def dispatch_uri(url)
uri = URI(Addressable::URI.parse(url).normalize.to_s)
response = Net::HTTP.get(uri)
response
end
This normalized string can be used to create a standard URI object and, thus, you are able to use a regular Net::HTTP request.
I'm using the GMail API that allows me to get a batched response of multiple Gmail objects.
This comes back in the form of a multipart/mixed HTTP response with a set of separate HTTP responses separated by a boundary as defined in the header.
Each of the HTTP sub-Responses is a JSON format.
i.e.
result.response.response_headers = {...
"content-type"=>"multipart/mixed; boundary=batch_abcdefg"...
}
result.response.body = "----batch_abcdefg
<the response header>
{some JSON}
--batch_abcdefg
<another response header>
{some JSON}
--batch_abcdefg--"
Is there a library or an easy way to convert those responses from the string into a set of separate HTTP responses or JSON objects?
Thanks to Tholle above...
def parse_batch_response(response, json=true)
# Not the same delimiter in the response as we specify ourselves in the request,
# so we have to extract it.
# This should give us exactly what we need.
delimiter = response.split("\r\n")[0].strip
parts = response.split(delimiter)
# The first part will always be an empty string. Just remove it.
parts.shift
# The last part will be the "--". Just remove it.
parts.pop
if json
# collects the response body as json
results = parts.map{ |part| JSON.parse(part.match(/{.+}/m).to_s)}
else
# collates the separate responses as strings so you can do something with them
# e.g. you need the response codes
results = parts.map{ |part| part}
end
result
end
Hi I am passing an email which is a time function like below
email = ${__time(MMddyy)}_${__time(HMS)}#yopmail.com
The value of this function changes eveytime I call the variable email.
I would like to store this value that is generated from this function into a variable and use that in other requests.
So currently I am getting two different emails in two different http requests since there is some time lag between my two http requests.
what I would like to do is .. store the email that is being sent in first http request by extracting the value from the request and pass it in the second http request.
POST data:
email=062915_160738%40yopmail.com
I know the way to extract from html response.. but is there any way to extract from request in jmeter?
If so can someone pls tell me how to achieve this?
thank you
Add a Beanshell PostProcessor as a child of the request which sends that POST request
Put the following code into the PostProcessor's "Script" area
import org.apache.jmeter.config.Argument;
import org.apache.jmeter.config.Arguments;
Arguments argz = ctx.getCurrentSampler().getArguments();
for (int i = 0; i < argz.getArgumentCount(); i++) {
Argument arg = argz.getArgument(i);
if (arg.getName().equals("email")) {
vars.put("EMAIL", arg.getValue());
break;
}
}
Refer generated value as ${EMAIL} where required.
Clarification:
above code will extract the value of email request parameter (if any) and store it to EMAIL JMeter Variable
ctx - shorthand to JMeterContext class instance
vars = shorthand to JMeterVariables class instance
Arguments and Argument - you can figure that out from JMeterContext JavaDoc
See How to use BeanShell: JMeter's favorite built-in component guide for more information on Beanshell scripting in JMeter.
Instead of the entire email, you can store the timestamp value in a variable and then use this timestamp variable to create email anywhere you want.
This way you will can have same email every where.
Add a Beanshell PostProcessor & Add following script:
import org.apache.jmeter.config.Argument;
import org.apache.jmeter.config.Arguments;
Arguments argz = ctx.getCurrentSampler().getArguments();
for (int i = 0; i < argz.getArgumentCount(); i++) {
Argument arg = argz.getArgument(i);
String req_body = arg.getValue();
vars.put("req_Json",req_body);
}
here we get the output in json format:
${req_Json}=
"email":"062915_160738%40yopmail.com",
"name":"abc xyz"
Now using jp#gc Json Path Extractor extract the value of email
Json expression = $['email']
and store the value in email_value_extacted
now use the variable ${email_value_extacted} anywhere you want to use.
finally,
${email_value_extacted} = 062915_160738%40yopmail.com
Is it HTTP Sampler? If so, just put into beanshell postprocessor:
String prevQuery = prev.getQueryString(); //your request text
System.out.println(prevQuery );
Also works for any samplers:
String prevQuery = prev.getSamplerData();
You can use Regular Expression extractor to extract the e-mail address from the request URL.
Add Regular Expression Extractor as a child of sampler which sends the post request.
In the Regular Expression Extractor select URL in Response Filed to check instead of Body.
You should be able to extract e-mail id from the request in this way.