compress / decompresss gzip encoded json

[projs1]

Hi,

In my application, I receive large JSON files from an AJAX request. To optimize that I want to compress the files using gzip.

Is there any library that supports decompressing / compressing of gzip files in the browser?

Does anyone have a better idea to optimize the amount of data to transmit?


Thank you very much for your help!

[CrackyD]

I think you can set the server to gzip certain requests automatically. If your browser supports them, it'll 'unzip' automatically.

It's a .htaccess feature if you're running on Apache. Try Googling that.

Other than trying to reduce the amount of data needed, not sure how you could optimize any further. Perhaps break the request into multiple smaller ones (i.e. pagination)?

[projs1]

I think you can set the server to gzip certain requests automatically. If your browser supports them, it'll 'unzip' automatically.

It's a .htaccess feature if you're running on Apache. Try Googling that.

Other than trying to reduce the amount of data needed, not sure how you could optimize any further. Perhaps break the request into multiple smaller ones (i.e. pagination)?

Thanks a lot for your hint :-) Thats exactly the thing I need.... hopefully it works on mobile device browsers as well.

to any other interested users: there you can find a good explanation about how automatic gzip compression works http://betterexplained.com/articles/...p-compression/

[007Julien]

Json has qualities, but is not always the best solution to transfer data...

In the case of a mySQL table, for example, simple strings (with | separators and a number N of fields - in the file name before the suffix ?) can be useful to read the keys (the N first fields) and all the values (the N-following fields...). This avoid the useless repetitions of the keys !

[rnd me]

Hi,

In my application, I receive large JSON files from an AJAX request. To optimize that I want to compress the files using gzip.

Is there any library that supports decompressing / compressing of gzip files in the browser?


Thank you very much for your help!

/* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
 * Version: 1.0.1
 * LastModified: Dec 25 1999.
 * updated and compressed by dandavis, 2012 (attribution only derivative)
 * Presumed abandonware, but retain this notice for public use.
 */

// 5kb:
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[rnd me]

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0!=i?(i!=r&&(dt(i,D),o--),dt(16,D),Ot(o-3,2)):10>=o?(dt(17,D),Ot(o-3,3)):(dt(18,D),Ot(o-11,7));o=0,r=i,0==s?(u=138,a=3):i==s?(u=6,a=3):(u=7,a=4)}},kt=function(e){var t,n,r;r=E-d,V[K]=Q,Tt(P),Tt(H);var i;Nt(A,P.max_code),Nt(O,H.max_code),Tt(B);for(i=18;3<=i&&0==D[ft[i]].dl;i--);i=(Y+=3*(i+1)+14,i),t=Y+3+7>>3,n=Z+3+7>>3,n<=t&&(t=n);if(r+4<=t&&0<=d){Ot(0+e,3),_t(),ht(r),ht(~r);for(i=0;i<r;i++)ct(a[d+i])}else if(n==t)Ot(2+e,3),At(M,_);else{Ot(4+e,3),r=P.max_code+1,t=H.max_code+1,i+=1,Ot(r-257,5),Ot(t-1,5),Ot(i-4,4);for(n=0;n<i;n++)Ot(D[ft[n]].dl,3);Ct(A,r-1),Ct(O,t-1),At(A,O)}Et(),0!=e&&_t()},Lt=function(e,t){l[$++]=t,0==e?A[t].fc++:(e--,A[U[t]+256+1].fc++,O[(256>e?z[e]:z[256+(e>>7)])&255].fc++,f[J++]=e,Q|=G),G<<=1,0==($&7)&&(V[K++]=Q,Q=0,G=1);if(2<k&&0==($&4095)){var n=8*$,r=E-d,i;for(i=0;30>i;i++)n+=O[i].fc*(5+ut[i]);n>>=3;if(J<parseInt($/2)&&n<parseInt(r/2))return!0}return 8191==$||8192==J},At=function(e,t){var n,r,i=0,s=0,o=0,u=0,a,c;if(0!=$)do 0==(i&7)&&(u=V[o++]),r=l[i++]&255,0==(u&1)?dt(r,e):(a=U[r],dt(a+256+1,e),c=ot[a],0!=c&&(r-=W[a],Ot(r,c)),n=f[s++],a=(256>n?z[n]:z[256+(n>>7)])&255,dt(a,t),c=ut[a],0!=c&&(n-=X[a],Ot(n,c))),u>>=1;while(i<$);dt(256,e)},Ot=function(e,t){p>16-t?(h|=e<<p,ht(h),h=e>>16-p,p+=t-16):(h|=e<<p,p+=t)},Mt=function(e,t){var n=0;do n|=e&1,e>>=1,n<<=1;while(0<--t);return n>>1},_t=function(){8<p?ht(h):0<p&&ct(h),p=h=0};return window.deflate=function(s,o){var u,h;et=s,tt=0,"undefined"==typeof o&&(o=6),(u=o)?1>u?u=1:9<u&&(u=9):u=6,k=u,x=r=!1;if(null==i){e=t=n=null,i=[8192],a=[65536],f=[8192],l=[32832],c=Array(65536),A=[573];for(u=0;573>u;u++)A[u]=new nt;O=[61];for(u=0;61>u;u++)O[u]=new nt;M=[288];for(u=0;288>u;u++)M[u]=new nt;_=[30];for(u=0;30>u;u++)_[u]=new nt;D=[39];for(u=0;39>u;u++)D[u]=new nt;P=new rt,H=new rt,B=new rt,j=[16],F=[573],R=[573],U=Array(256),z=[512],W=[29],X=[30],V=Array(1024)}for(var p=[1024],d=[];0<(u=bt(p,0,p.length));){var v=[u];for(h=0;h<u;h++)v[h]=String.fromCharCode(p[h]);d[d.length]=v.join("")}return et=null,d.join("")}}()