PNG
IHDR x sBIT|d pHYs + tEXtSoftware www.inkscape.org< ,tEXtComment
File Manager
File Manager
Viewing File: README.md
# negotiator
[![NPM Version][npm-image]][npm-url]
[![NPM Downloads][downloads-image]][downloads-url]
[![Node.js Version][node-version-image]][node-version-url]
[![Build Status][github-actions-ci-image]][github-actions-ci-url]
[![Test Coverage][coveralls-image]][coveralls-url]
An HTTP content negotiator for Node.js
## Installation
```sh
$ npm install negotiator
```
## API
```js
var Negotiator = require('negotiator')
```
### Accept Negotiation
```js
availableMediaTypes = ['text/html', 'text/plain', 'application/json']
// The negotiator constructor receives a request object
negotiator = new Negotiator(request)
// Let's say Accept header is 'text/html, application/*;q=0.2, image/jpeg;q=0.8'
negotiator.mediaTypes()
// -> ['text/html', 'image/jpeg', 'application/*']
negotiator.mediaTypes(availableMediaTypes)
// -> ['text/html', 'application/json']
negotiator.mediaType(availableMediaTypes)
// -> 'text/html'
```
You can check a working example at `examples/accept.js`.
#### Methods
##### mediaType()
Returns the most preferred media type from the client.
##### mediaType(availableMediaType)
Returns the most preferred media type from a list of available media types.
##### mediaTypes()
Returns an array of preferred media types ordered by the client preference.
##### mediaTypes(availableMediaTypes)
Returns an array of preferred media types ordered by priority from a list of
available media types.
### Accept-Language Negotiation
```js
negotiator = new Negotiator(request)
availableLanguages = ['en', 'es', 'fr']
// Let's say Accept-Language header is 'en;q=0.8, es, pt'
negotiator.languages()
// -> ['es', 'pt', 'en']
negotiator.languages(availableLanguages)
// -> ['es', 'en']
language = negotiator.language(availableLanguages)
// -> 'es'
```
You can check a working example at `examples/language.js`.
#### Methods
##### language()
Returns the most preferred language from the client.
##### language(availableLanguages)
Returns the most preferred language from a list of available languages.
##### languages()
Returns an array of preferred languages ordered by the client preference.
##### languages(availableLanguages)
Returns an array of preferred languages ordered by priority from a list of
available languages.
### Accept-Charset Negotiation
```js
availableCharsets = ['utf-8', 'iso-8859-1', 'iso-8859-5']
negotiator = new Negotiator(request)
// Let's say Accept-Charset header is 'utf-8, iso-8859-1;q=0.8, utf-7;q=0.2'
negotiator.charsets()
// -> ['utf-8', 'iso-8859-1', 'utf-7']
negotiator.charsets(availableCharsets)
// -> ['utf-8', 'iso-8859-1']
negotiator.charset(availableCharsets)
// -> 'utf-8'
```
You can check a working example at `examples/charset.js`.
#### Methods
##### charset()
Returns the most preferred charset from the client.
##### charset(availableCharsets)
Returns the most preferred charset from a list of available charsets.
##### charsets()
Returns an array of preferred charsets ordered by the client preference.
##### charsets(availableCharsets)
Returns an array of preferred charsets ordered by priority from a list of
available charsets.
### Accept-Encoding Negotiation
```js
availableEncodings = ['identity', 'gzip']
negotiator = new Negotiator(request)
// Let's say Accept-Encoding header is 'gzip, compress;q=0.2, identity;q=0.5'
negotiator.encodings()
// -> ['gzip', 'identity', 'compress']
negotiator.encodings(availableEncodings)
// -> ['gzip', 'identity']
negotiator.encoding(availableEncodings)
// -> 'gzip'
```
You can check a working example at `examples/encoding.js`.
#### Methods
##### encoding()
Returns the most preferred encoding from the client.
##### encoding(availableEncodings)
Returns the most preferred encoding from a list of available encodings.
##### encoding(availableEncodings, preferred)
Returns the most preferred encoding from a list of available encodings, while prioritizing based on `preferred` array between same-quality encodings.
##### encodings()
Returns an array of preferred encodings ordered by the client preference.
##### encodings(availableEncodings)
Returns an array of preferred encodings ordered by priority from a list of
available encodings.
##### encodings(availableEncodings, preferred)
Returns an array of preferred encodings ordered by priority from a list of
available encodings, while prioritizing based on `preferred` array between same-quality encodings.
## See Also
The [accepts](https://npmjs.org/package/accepts#readme) module builds on
this module and provides an alternative interface, mime type validation,
and more.
## License
[MIT](LICENSE)
[npm-image]: https://img.shields.io/npm/v/negotiator.svg
[npm-url]: https://npmjs.org/package/negotiator
[node-version-image]: https://img.shields.io/node/v/negotiator.svg
[node-version-url]: https://nodejs.org/en/download/
[coveralls-image]: https://img.shields.io/coveralls/jshttp/negotiator/master.svg
[coveralls-url]: https://coveralls.io/r/jshttp/negotiator?branch=master
[downloads-image]: https://img.shields.io/npm/dm/negotiator.svg
[downloads-url]: https://npmjs.org/package/negotiator
[github-actions-ci-image]: https://img.shields.io/github/workflow/status/jshttp/negotiator/ci/master?label=ci
[github-actions-ci-url]: https://github.com/jshttp/negotiator/actions/workflows/ci.yml
b IDATxytVսϓ22 A@IR :hCiZ[v*E:WũZA ^dQeQ @ !jZ'>gsV仿$|?g)&x-E IENT ; @x T.i%-X} SvS5.r/ UHz^_$-W" w)Ɗ/ @Z &IoX P$K} JzX:;` &, ŋui,e6mX
Եr Kb1ԗ) D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A ݀!I*]R;I2$eZ#ORZSrr 6mteffu*((Pu'v{ DIߔ4^pIm '77WEEE;vƎ 4- $]'RI{\I&G :IHJ
DWBB=\WRm
o$K(V 9 ABB.}jѢv `^?IOȅ} ڶmG }T#FJ`5 6$- ھ}FI&v;0(h; Б 38CӧOWf!; A
i:F _m9s&|q%=# wZprrrla
A & P\\СC[A#! { olF}
`E2} MK/vV )i{ 4BffV\|ۭX `b@kɶ@%i$K z5zhmX [IXZ ` 'b%$r5 M4º /l
ԃ ߖ xhʔ)[@=}
K6IM}^ 5k㏷݆z
ΗÿO:gdGBmyT/@+Vɶ纽zl.yit뭷zV 0[Y^>Wsqs}\/@$(T7f.Inݺi R$푔n.~?H))\Z RW'Mo~v
Ov6oԃ xz! S,&xm/yɞԟ?'uaSѽb, 8GלKboi&3 t7Y,)JJ c[nzӳdE&KsZLӄ I ?@ & %ӟ۶mSMMњ0 iؐSZ, |J+N
~,0A 0!5%Q-YQQa 3 }$_vVr f9f?S 8` z D A D A D A D A D A D A D A D A D A dqP,تmMmg 1V?rSI꒟]u|l
RCyEf٢9 jURbztѰ!m5~tGj2DhG*{H9)꒟ר3:(+3\?/;TUݭʴ~S6lڧUJ*i$d(#=Yݺd{,p|3B)) q:vN0Y.jkק6;SɶVzHJJЀ-utѹսk>QUU \~]fFnK?&ߡ5b=z9)^|u_k-[ y%ZNU6 7Mi:]ۦ tk[n
X(e6 Bb."8cۭ|~teuuw|ήI-5"~Uk;ZicEmN/:]M>
cQ^uiƞ??Ң pc# TUU3UakNwA`:Y_V-8.KKfRi tv*
9S6ֿj,ՃNOMߤ]z^fOh|<>@Å5 _/Iu?{SY4hK/2]4%it5q]GGe2%iR|
W&f*^]??vq[LgE_3f}Fxu~}qd-ږFxu~I N >\;͗O֊:̗WJ@ Bh W=y|GgwܷH_NY?)Tdi'?խwhlmQi !SUUsw4kӺe4rfxu-[nHtMFj}H_u~w>)oV}(T'ebʒv3_[+vn @Ȭ\S}ot}w=k HFnxg S 0eޢm~l}uqZfF oZuuEg
`zt~? b;t%>WTkķh[ 2eG8LIWx,^\thrl^Ϊ{=dž<}qV@ ⠨Wy^LF_>0UkD uʫuCs$)I v:IK; 6ֲ4{^6 եm+l 3>݆uM 9u ?>Zc }g~qhKwڭ e FMM~pМuqǿz6Tb@8 @Y|jx](^]gf}M"tG
-w.@ vOqh~/HII` S[l.6nØXL9vU cOoB\xoǤ'T&I ǍQw_wpv[kmO{w~>#=P1Pɞa-we:iǏlHo꒟f9SzH?+shk%Fs:q VhqY `jvO'ρ?PyX3lх]˾uV{ݞ]1,MzYNW~̈́ joYn}ȚF߾mS]F z+EDxm/d{F{-W-4wY듏:??_gPf
^3ecg ҵs8R2מz@TA NGj)}CNi/R~}c:5{! ZHӋӾ6}T] G]7W6^n
9*,YqOZj :P?Q D FL|?-^.Ɵ7}fFhxe2Ps cz1&5\cn[=Vn[ĶE鎀uˌd3GII k;lNmشOuuRVfBE]ۣe Ӷu
:X-[(er4~LHi6:Ѻ@ԅr ST0 trk%$Č0 ez" *z " T/X9|8.C5Feg} C Q%͞ˣJvL/? j^ h & 9xF`њZ( & yF&Iݻfg #W;3^{Wo^4'v V[[K';+mӍִ] AC @ W?1^{එyh +^]fm~iԵ] AB @WTk̏t uR?l.OIHiYyԶ] Aˀ 7c:q}ힽaf6Z~қm(+sK4{^6}T *UUu]n.:kx{:2 _m=sAߤU@? Z-Vކе z왍Nэ{|5 pڶn b
p-@sPg]0G7fy-M{GCF'%{4` =$-Ge\ eU:m+Zt'WjO!OAF @ik&t݆ϥ_
e}=]" Wz_.͜E3leW Fih|t-wZۍ-uw=6 YN {6|} | *={Ѽn.S .z1z jۻTH]흾 D uDvmvK .` V]yY~sI@t?/ϓ. m&[ " +P?MzovVЫG3- G RR[(!!\_,^%?v@ ҵő
m`Y)tem8GM x.))A]Y i`ViW`?^~! S#^+ѽGZj?Vģ 0.))AlzL*]OXrY `DBBLOj{-MH'ii-ϰ ok7^
)쭡b]UXSְmռY|5 *cֽk0B7镹%ڽP# 8nȎq}mJr23_>lE5$iwui+ H~F`IjƵ@q
\ @#qG 0" . 0" l ` . 0! , AQHN6qzkKJ#o;`Xv2>,tێJJ7Z/*A .@fفjMzkg @TvZH3Zxu6Ra'%O?/d Q5x YkU]Rֽkق@ DaS^RSּ5|BeHNN͘p
HvcYcC5:y
#`οb; z2 .!kr}gUWkyZn=f Pvsn3p~;4p˚=ē~NmI] ¾ 0lH[_L hs h_ ғߤc_њe c) g 7VIZ5 yrgk̞W#IjӪv>՞y睝M8[ |]\շ 8M 6%|@P ZڨI-m>=k= 'aiRo-x?>Q. }`Ȏ:Wsmu u >
.@,&;+!!˱tﭧD QwRW\vF\~Q7>sp Yw$%A~;~}6 ¾ g &if_=j,v+U L1(tW ake:@Ș>j$Gq2t7S?vL|]u/ .(0 E 6Mk6hiۺzښOrifޱxm/Gx> Lal%%~{lBsR4* }{0Z/ tNIɚpV ^# Lf:u@k#RSu
=S^ZyuR/.@n&z~B=0eg뺆#,Þ[ B/?H uUf7y
Wy}Bwegל`Wh(||`l`.;Ws?V@" c:iɍL֯PGv6zctM̠':wuW;d=;EveD}9J@ B(0iհ bvP1{\P&G7DIy_$-Q jm~Yrr&]CDv%bh|Yzni _ R ;kg}nJOIIwy uL}{ЌNj}:+3Y?:WJ/N+Rzd=hb;dj͒suݔ@NKMԄ jqzC5 @y°hL m;*5ezᕏ=ep
XL n?מ:r`۵tŤZ|1v`V뽧_csج'ߤ%oTuumk%%%h)uy]Nk[n
'b2 l.=͜E%gf$[c;s:V-͞WߤWh-j7]4=F-X]>ZLSi[Y*We; Zan(Ӈ W|e(HNNP5[=
r4tP
&0< pc# `vTNV
GFqvTi * Tyam$ߏWyE* VJKMTfFw >'$-ؽ.Ho.8c"@ D A D A D A D A D A D A D A D A D A~j*֘, N;Pi3599h=g oض L giJ5փy~}&Zd9 p֚
e:|hL``b/d9 p? fgg+%%hMg Xosج, ΩOl0Zh=x djL mhݻo O [g_l, 8a]٭+ӧ0 $I] c]:粹:Teꢢ"5a^Kgh,&= =՟ ^߶ߢE ܹS J}I%:8
IDAT~,9/ʃ PW'Mo }zNƍ쨓zPb NZ~^z=4mswg;5 Y~SVMR XUյڱRf?s:w
; 6H:º i 5 -maM &O3; 1IKeam Zh͛7+##v+c ~u~ca] GnF'ټL~ PPPbn
v oC 4R,ӟgg %hq} @#M4IÇ Oy^xM Zx
) yO w @HkN˖-Sǎ mb]X@n+i͖ !++K3gd\$mt$^ YfJ \8PRF )77Wא!Cl $i: @@_oG I{$# 8磌ŋ9 1A (Im7 ֭>}ߴJq7ޗt^ -[ԩSj*}%]&'
- ɓ'ꫯVzzvB#; a
7@GxI{jƌ.LÇWBB7 `O"I$ /@R @ eee@۷ >}0 ,ɒ2$53Xs|cS~r pTYYY} k Hc %&k.], @ A D A D A D A D A D A D A D A D A @lT<%''*Lo^={رc5h %$+CnܸQ3fҥK}vUVVs9G
R,_{ xˇ3 o߾;TTTd}馛]uuuG~iԩ@4 bnvmvfϞ /Peeeq}}z a
I~,誫{UWW뮻}_~YƍSMMMYχ ֝waw \ ď cxꩧtEƍկ_?۷5@u ?1kNׯWzz/wy>}zj3 k (ٺu q_Zvf̘:~ AB Q&r| ! %KҥKg Ԟ={<_X-z ! CyFUUz~ AB QIIIjݺW $ UXXDٳZ~ AB QƍecW $<(~<RSSvZujjjԧO ZQu@4 8m&&&jԩg $ ď 1h ͟?_{768@ g
=@ `)))5o6m 3 ) ѣƌJ;wҿUTT /KZR{~a=@ 0o<*狔iFɶ[ˎ ;T]] OX@ ?K.ۈxN p p p p p p p p p p p p p p p p pP fl߾] ,{ｧk۶mڿo5 BTӦMӴiӴ|r D B2e |An!D y'tkΝ[A $***t5'
" !駟oaD nΝ:t֭[gD ШQ0 6qD;@ x M6v( PiizmZ 4ew" @ ̴ixf [~-F ٱc&IZ 2|n!?$ @{[HTɏ #@h Ȏ I# _m (F /6Z3 z'\r, r!;w2Z3j=~G Y 7"I$i I. p_" ? p N` y D D ?: _ G ÿa b7 J ! Bx @0 Bo
cG @`1C [ @0G
@`0C _ u V1 aC X > W ` | `! < S `" <. `# c `? cA C 4
? c p# ~ @0 ?: 0 8& _ M Q1 J h# ? /` 7; I q 7 a w Q A 1 H p
! #< 8/# @1Ul7 =S=K.4Z?E _$i@ ! 1!E 4? ` P_ @B ă 1 0# : " aU,xb F Y1
[n |n
#' v EH:`x b
# v D 4 Y hi.i& EΖv# O H 4IŶ}:Ik h @tZRF # (tXҙzZ ? I3l7 q@õ|ۍ 1,GpuY Ꮿ@ hJv# x xk$
v# 9 5 }_$ c S#=+"K {F*m7`# %H:NRS p6I?sIՖ{Ap$I$I:QRv2$Z @UJ*$]<FO4 IENDB`