How do I get socket.io to automatically compress my message?

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I am using socket.io on my client and server.



As an example, I am sending a 5MB PDF from the server to the client:



const pdf = require('fs').readFileSync('5mb.pdf');

socket.compress(true).send(pdf);


However I am not sure if this is actually compressing...



I say this because I tried the same thing as above but with compression disabled and the Length for both shows up the same in Chrome's Dev Tools:



enter image description here



How do I verify if the compression is actually working? and how do I find out how effective the compression is?










share|improve this question



























    1















    I am using socket.io on my client and server.



    As an example, I am sending a 5MB PDF from the server to the client:



    const pdf = require('fs').readFileSync('5mb.pdf');

    socket.compress(true).send(pdf);


    However I am not sure if this is actually compressing...



    I say this because I tried the same thing as above but with compression disabled and the Length for both shows up the same in Chrome's Dev Tools:



    enter image description here



    How do I verify if the compression is actually working? and how do I find out how effective the compression is?










    share|improve this question

























      1












      1








      1








      I am using socket.io on my client and server.



      As an example, I am sending a 5MB PDF from the server to the client:



      const pdf = require('fs').readFileSync('5mb.pdf');

      socket.compress(true).send(pdf);


      However I am not sure if this is actually compressing...



      I say this because I tried the same thing as above but with compression disabled and the Length for both shows up the same in Chrome's Dev Tools:



      enter image description here



      How do I verify if the compression is actually working? and how do I find out how effective the compression is?










      share|improve this question














      I am using socket.io on my client and server.



      As an example, I am sending a 5MB PDF from the server to the client:



      const pdf = require('fs').readFileSync('5mb.pdf');

      socket.compress(true).send(pdf);


      However I am not sure if this is actually compressing...



      I say this because I tried the same thing as above but with compression disabled and the Length for both shows up the same in Chrome's Dev Tools:



      enter image description here



      How do I verify if the compression is actually working? and how do I find out how effective the compression is?







      websocket socket.io






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Nov 24 '18 at 21:48









      RainSearRainSear

      17539




      17539
























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          PDF is already a compressed format. Therefore, most of the time, trying to compress one pdf file leads to nearly no changes.



          You probably should do the same test with an ASCII file.






          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            PDF is already a compressed format. Therefore, most of the time, trying to compress one pdf file leads to nearly no changes.



            You probably should do the same test with an ASCII file.






            share|improve this answer




























              0














              PDF is already a compressed format. Therefore, most of the time, trying to compress one pdf file leads to nearly no changes.



              You probably should do the same test with an ASCII file.






              share|improve this answer


























                0












                0








                0







                PDF is already a compressed format. Therefore, most of the time, trying to compress one pdf file leads to nearly no changes.



                You probably should do the same test with an ASCII file.






                share|improve this answer













                PDF is already a compressed format. Therefore, most of the time, trying to compress one pdf file leads to nearly no changes.



                You probably should do the same test with an ASCII file.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 26 '18 at 8:10









                Matthieu BouxinMatthieu Bouxin

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