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Structural engineering is the art and science of molding materials we do not fully understand into shapes we cannot precisely analyze to resist forces we cannot accurately predict, all in such a way that the society at large is given no reason to suspect the extent of our ignorance. – Unknown.
Taken from the "The Embedded Muse" news letter.
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Programming is the art and science of using crazy architectures and the latest whizzbang frameworks that we do not fully understand how to use to create code we cannot precisely analyze to meet customer requirements that we cannot accurately predict, all in such a way that the users are given no reason to suspect the extent of our ignorance. – Marc
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I like yours better. 
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You've been spending way too much time in QA ... 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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I could not possible agree more with this one. I think it was meant in jest but, I feel like it is dead on.
ed
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Life is the art of living with persons whose behaviour we cannot clearly predict, through circumstances which we cannot fully control, in such a way that society at large is given no reason to suspect that we are not fully happy. - Me.
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While finding an ever-increasing number of places to hide the bodies.
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Eating tacos is the art and science of folding yummy noms noms into corn shell, in which we cannot accurately predict if the ingredients will stay in place, in such as way that will give form to awesomeness upon consumption.
Jeremy Falcon
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Jeremy Falcon wrote: Eating tacos is the art and science of folding yummy noms noms into corn shell, in which we cannot accurately predict if the ingredients will stay in place, in such as way that will give form to awesomeness upon consumption or afterwards.
FTFY  
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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Pay men rue poor Judge (10)
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Remunerate ?
Anagram of men rue and rate (judge)
Pay = remunerate
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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You are up tomorrow!
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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i have searched w/o success for software which outputs trace/logging info for each api call and which then permits playback . may i please inquire of any recommendations . thank you kindly
[EDIT] perhaps i should make clear the api to which i refer is my own i.e. not of OS . e.g. if a user calls my api and finds error he/she should be able to attempt repro w/ logging/tracing switched on in my library so i can then investigate upon playback .
modified 21-Mar-23 6:05am.
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I suggest two things:
* You can google "rest api recording" or "rest api recording proxy"
* please remove your post and use the Q&A
"If we don't change direction, we'll end up where we're going"
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thank you for recommending the web searches though i wish what i found did not fly over my head but i am not certain what was found fits my request . as for my request apparently offending your kind self i do not understand why that should be so as requesting such minor and brief "technical" advice is not unheard of here on Lounge . i am certainly not the first or only . no doubt there will be more and from others . now they will know what to expect from your kind self . i will gratefully accept your kind advice perhaps for greater elaboration on Q&A but as Lounge is presumably more viewed it seems useful to not delete and perhaps obtain some more brief advice .
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megaadam wrote: please remove your post and use the Q&A
why ? its not a programming question, its something that other people might also find useful ?
CI/CD = Continuous Impediment/Continuous Despair
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Its totally fine now to post programming questions in the lounge. Members answer programming questions in the Lounge all the time.
However, OP's question was not a "programming question", but who really cares.
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I would suggest using standard logger like Serilog, or Log4Net and dump your jason or whatever you want to log. It will be more flexible and stable compared to some all-around solution. Also, a piece of advice - apart from logging your calls in a file/email, record every API response in the DB, including errors. All of it.
Advertise here – minimum three posts per day are guaranteed.
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It depends what your use case is. If you just want to intercept some API calls and play back to do some local testing, if they are HTTP/HTTPs based, you could always use Postman.
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Are you on the server side or client side?
My latest experience with requesting/consuming data from a restful api has been dreadful. 
If you are the provider, it's a pretty simple task to read your webserver logs into a gridview or something for analysis/playback. I know you probably don't want to roll your own, but it does have some real advantages.
"Go forth into the source" - Neal Morse
"Hope is contagious"
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thank you for your kind reply . i know nothing re/ servers or clients or restful's . my library/application has nothing to do w/ websites as i know nothing about internet programming . it is a simple interface to local permanent storage . it seems to my surprise an api-record/playback software does not exist . i am quite willing even happy to write my own as it does not seem particularly difficult and i expect i would find pleasure in its successful implementation . i still do not understand why such does not exist as it seems a useful tool which means a profitable tool which means thousands of superior programmers would have written such prior . -Best
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BernardIE5317 wrote: my library/application has nothing to do w/ websites as i know nothing about internet programming . it is a simple interface to local permanent storage . it seems to my surprise an api-record/playback
Ah...
BernardIE5317 wrote: i still do not understand why such does not exist
Because it is not as easy as you think.
An application that uses libraries is making a call that is controlled by the programming language, compiler and even the OS.
At the most basic level you must do code injection just to interpret the call. This is how debuggers work.
However you also want the values that are being passed in to the call.
So you can do a 'playback'.
Values are passed by the stack however knowing that does not help much with playback because values are often pointers. So you would need to retrieve what is being pointed at.
But how do you know what is being pointed at so you can correctly walk that value to retrieve it? In general there is no way to know where a pointer ends without knowing what it is. And that becomes even worse if the object (space) being pointed to itself contains pointers. Debuggers do this because there is debug information stored (somewhere) that allows them to interpret that data - often dynamically as a user drills down on it.
Further there is another very serious problem. Some values that are passed are not designed to be read twice. For example lazy loaded collections. Even if you managed to reset such a collection after reading it, it is even possible that the api call then might get different values (for example if the collection pulls from a database.)
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thank you for your informative reply . i envision it as follows . utilizing presumably Clang to parse the source file which i know little of which would deduce argument types then inject logging code into the source code at top of each function also into each class passed as arguments so such can log themselves also in similar fashion pointer targets can be logged again as Clang deduces types . as for lazy loading i have no idea what that is but i am sure my simple library does not utilize it . - Best
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If if the method is passed a void pointer (anonymous class pointer) what are you going to do with that? Especially for playback?
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thank you for bringing this to my attention . a cursory examination of the ast dump by clang of a simple such example i.e. casting a void* to a class ptr and writing to a class member seems to reveal sufficient information to deduce the final values accessed via the newly cast ptr if given all other input values via run log/trace. -Best
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