I am trying to write REST services in Go. As there are different frameworks for writing REST service in Go, we would like to do some performance testing before choosing the framework.
Currently I did a sample using go-json-rest.
But when I execute this sample REST request, I see the following logs printed in my terminal.
24/Nov/2015:12:30:35 +0530 200 29μs "GET /countries HTTP/1.1" - "Java/1.8.0_45"
This logging will take some time and impact my performance report.
How can I switch of this logging?
You should know that it's AccessLogApacheMiddleware that controls your logging, and DefaultDevStack contains the AccessLogApacheMiddleware.
Two ways to prevent logging:
You can use a predefined variable like DefaultCommonStack which doesn't contain the AccessLogApacheMiddleware;
Construct your own ...Middlewares. Since the Use function is a Variadic Functions, which pass the multiple middlewares into the function. If you don't need AccessLogApacheMiddleware, you just ignore it. It gives you more power to control whatever middlewares you like.
e.g.
api := rest.NewApi()
api.Use(&rest.TimerMiddleware{},
&rest.RecorderMiddleware{},
&rest.PoweredByMiddleware{},
&rest.RecoverMiddleware{})
May this be helpful.
Related
Let's suppose that to make a REST request C, I need to make a request A and a request B as a set up for the business case.
I know how to run 3 requests sequentially in jmeter, but I want just to C be measured by jmeter stats to see tps and response time. Is there a way to do that?
Let's say that A and B not necessarily will be executed in a near time in a real case, but they need to be requested before C.
There are 2 options:
Add JSR223 PostProcessors as children of requests A and B and use the following code:
prev.setIgnore()
this line will invoke SampleResult.setIgnore() function suppressing the output of the sampler(s) in the JSR223 PostProcessor's scope. Check out Top 8 JMeter Java Classes You Should Be Using with Groovy article for more information on JMeter API shortcuts available for JSR223 Test Elements.
Another option is using Filter Results Tool which allows removing "not interesting" entries from the .jtl results file. Filter Results Tool can be installed using JMeter Plugins Manager (you will need Merge Results as well), example command line would be something like:
FilterResults.bat --output-file onlyrequestc.jtl --input-file result.jtl --include-labels "Request C"
I was wondering if it is possible to receive the prompts used (with possibly all it's options) in a report using REST services.
What I like to achieve is receiving the prompts and if possible all the options for those prompts in an XML format from any given Pentaho report. I know there are rest calls for basic repository listings etc... but I can't seem to find this specific call.
It is possible to get full parameters xml (which includes parameters, parameters values, parameters attributes as far as info which is used to create report prompts) - full parameter info. You need bi server and reporting plugin. The url is:
http://localhost:8080/pentaho/api/repos/"%"3Apublic"%"3ASteel"%"20Wheels"%"3AInventory"%"20List"%"20(report).prpt/parameter
And we have to pass parameter renderMode with value: PARAMETER.
Here we call to report under /public/Steel Wheels/Inventory List (reprot).prpt
or simplifying -
"http://localhost:8080/pentaho/api/repos/<path_to_report>.prpt/parameter"
You can open browser and inspect requests responses just on fly:
On a screen is actually parameter requests you are looking for.
I am trying to redirect all traffic for one domain to another. Rather than running a server specifically for this job I was trying to use AWS API Gateway with lambda to perform the redirect.
I have this working ok for the root path "/" but any requests for sub-paths e.g. /a are not handled. Is there a way to define a "catch all" resource or wildcard path handler?
As of last week, API Gateway now supports what they call “Catch-all Path Variables”.
Full details and a walk-through here: API Gateway Update – New Features Simplify API Development
You can create a resource with path like /{thepath+}. Plus sign is important.
Then in your lambda function you can access the value with both
event.path - always contains the full path
or event.pathParameters.thepath - contains the part defined by you. Other possible use case: define resource like /images/{imagepath+} to only match pathes with certain prefix. The variable will contain only the subpath.
You can debug all the values passed to your function with: JSON.stringify(event)
Full documentation
Update: As of last week, API Gateway now supports what they call “Catch-all Path Variables”. See API Gateway Update – New Features Simplify API Development.
You will need to create a resource for each level unfortunately. The reason for this is API Gateway allows you to access those params via an object.
For example: method.request.path.XXXX
So if you did just /{param} you could access that with: method.request.path.param but if you had a nested path (params with slashes), it wouldn't work. You'd also get a 404 for the entire request.
If method.request.path.param was an array instead...then it could get params by position when not named. For example method.request.path.param[] ...Named params could even be handled under there, but accessing them wouldn't really be easy. It would require using something some sort of JSON path mapping (think like what you can do with their mapping templates). Sadly this is not how it's handled in API Gateway.
I think it's ok though because this might make configuring API Gateway even more complex. However, it does also limit API Gateway and to handle this situation you will ultimately end up with a more confusing configuration anyway.
So, you can go the long way here. Create the same method for multiple resources and do something like: /{1}/{2}/{3}/{4}/{5}/{6}/{7} and so on. Then you can handle each path parameter level if need be.
IF the number of parameters is always the same, then you're a bit luckier and only need to set up a bunch of resources, but one method at the end.
source: https://forums.aws.amazon.com/thread.jspa?messageID=689700򨘤
Related to HTTPAPI that AWS introduced recently, $default is used a wildcard for catching all routes that don't match a defined pattern.
For more details, refer to: aws blogs
You can create a resource with path variable /{param}, and you can treat this as wildcard path handler.
Thanks,
- Ka Hou
Is it possible to use Kdb+ http client to access pages protected by login? I am using https://github.com/KxSystems/cookbook/blob/master/yahoo.q as example of basic GET/POST. Does anyone have an example how to extract a cookie and use it in the following requests?
It is probably a bit crude, but the following will extract headers from an http, then cookies, parse and return as a dictionary:
x:"HTTP/1.0 200 OK\r\nContent-type: text/html\r\nSet-Cookie: theme=light\r\nSet-Cookie: sessionToken=abc123; Expires=Wed, 09 Jun 2021 10:18:14 GMT\r\n\r\n";
left:{(first y ss x)#y};
vs1:{{(y#x;(count[z]+y)_x)}[y;;x](first y ss x)};
headers:{{(`$x[0];x[1])} flip vs1[": "] each 1_"\r\n" vs left["\r\n\r\n"]x};
cookies:{(!). {(`$x[0];x[1])} flip vs1["="] each {x[1]#where x[0]=`$"Set-Cookie"} x};
cookies headers[x]
Whilst you might be able to various bits and bobs from an http response, the fact that you won't be able to manipulate http methods means that q can't be your tool to do this - well, not without some vigorous effort.
I would use something like Beautiful Soup in conjunction with q. Soup has some great tools for handling this kind of thing (e.g. cookies etc). There are various other similar projects too.
System call for Beautiful Soup that make relevant get/post/put calls and download required data
system"/path/to/code.py"
Where the code dumps the result somewhere or puts it into kdb directly. Then do whatever you like with it.
I need tips to build an infrastructe to send 1000 simultaneous voice calls (automated IVR calls with voicexml). Up to now i used asterisk with voiceglue but now i have performance issues.
The infrasturcture was like this:
the asterisk pulls request from queue
the queue consumer create a call file
when the call ends, call file is read and status is sent to the application server
To be honest, i am asking for tips to implement an infrastructure like callfire[1] or voxeo[2]?
[1]https://www.callfire.com/
[2]http://voxeo.com/
you can go with voxeo prophecy (http://voxeo.com/prophecy/) one of the good server which have the capability of making simultaneous voice calls
Note: The requirement which your are expecting to do will not only possible with voxeo prophecy it should also depend the web server like Tomcat, IIS e.t.c in case if you dealing with databases like Sql , Oracle e.t.c
Please do refer to know the architecture
http://www.alpensoftware.com/define_VoiceOverview.html
CallFire's API has a CreateBroadcast method where you can throw up an IVR using their XML in seconds. You can read up on the documentation here:
https://www.callfire.com/api-documentation/rest/version/1.1#!/broadcast
CallFire also offers a PHP-SDK, hosted on Github, with examples of how to do this. The SDK is minimal setup and allows you to easily tap into the APIs robust functionality. Version 1.1 can be found here, with instructions on how to get started: https://github.com/CallFire/CallFire-PHP-SDK
The method call might look something like this. Note the required dependencies.
<?php
use CallFire\Api\Rest\Request;
use CallFire\Api\Rest\Response;
require 'vendor/autoload.php';
$dialplan = <<<DIALPLAN
<dialplan><play type="tts">Congratulations! You have successfully configured a CallFire I V R.</play></dialplan>
DIALPLAN;
$client = CallFire\Api\Client::Rest("<api-login>", "<api-password>", "Broadcast");
$request = new Request\CreateBroadcast;
$request->setName('My CallFire Broadcast');
$request->setType('IVR');
$request->setFrom('15551231234'); // A valid Caller ID number
$request->setDialplanXml($dialplan);
$response = $client->CreateBroadcast($request);
$result = $client::response($response);
if($result instanceof Response\ResourceReference) {
// Success
}
You can read this:
http://www.voip-info.org/wiki/view/Asterisk+auto-dial+out
Main tip: you WILL have ALOT of issues. If you are not expert with at least 5 years development experience with asterisk, you have use already developed dialling cores or hire guru. There are no opensource core that can do more then 300 calls on single server.
You can't do 1000 calls on single asterisk in app developed by "just nice developer". It will just not work.
Task of create dialling core for 1000 calls is "rocket science" type task. It require very special dialling core, very special server/server tunning and very specialized dialler with pre-planning.
1000 calls will result 23Mbit to 80Mbit bandwidth usage with SMALL packets, even that single fact can result you be banned on your hosting and require linux network stack be tunned.
You can use ICTBroadcast REST API to integerate your application with reknown autodialer , please visit following link for more detail
http://www.ictbroadcast.com/news/using-rest-api-integerate-ictbroadcast--third-party-application-autodialer
ICTBroadcast is based on asterisk communication engine
I've already done this for phone validation and for phone message broadcasting using Asterisk and Freeswitch. I would go with Freeswitch and xmlrpc:
https://wiki.freeswitch.org/wiki/Freeswitch_XML-RPC