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Posted to notifications@apisix.apache.org by sp...@apache.org on 2022/06/21 01:09:06 UTC

[apisix-go-plugin-runner] branch master updated: feat: implement the response filter for plugin (#90)

This is an automated email from the ASF dual-hosted git repository.

spacewander pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/apisix-go-plugin-runner.git


The following commit(s) were added to refs/heads/master by this push:
     new 11c4627  feat: implement the response filter for plugin (#90)
11c4627 is described below

commit 11c462737066fac7453a188875827b8c7e7921ad
Author: soulbird <zh...@outlook.com>
AuthorDate: Tue Jun 21 09:09:02 2022 +0800

    feat: implement the response filter for plugin (#90)
---
 go.mod                         |   2 +-
 go.sum                         | 152 +--------------------------------
 internal/http/response.go      | 183 +++++++++++++++++++++++++++++++++++++++
 internal/http/response_test.go | 189 +++++++++++++++++++++++++++++++++++++++++
 internal/plugin/plugin.go      |  79 +++++++++++++++--
 internal/plugin/plugin_test.go | 156 +++++++++++++++++++++++++++-------
 internal/server/server.go      |   3 +
 internal/util/msg.go           |   1 +
 8 files changed, 576 insertions(+), 189 deletions(-)

diff --git a/go.mod b/go.mod
index 4e949dc..eaf570b 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.15
 
 require (
 	github.com/ReneKroon/ttlcache/v2 v2.4.0
-	github.com/api7/ext-plugin-proto v0.4.0
+	github.com/api7/ext-plugin-proto v0.5.0
 	github.com/google/flatbuffers v2.0.0+incompatible
 	github.com/spf13/cobra v1.1.3
 	github.com/stretchr/testify v1.7.0
diff --git a/go.sum b/go.sum
index 60cba45..f54047a 100644
--- a/go.sum
+++ b/go.sum
@@ -4,235 +4,141 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR
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-go.etcd.io/bbolt v1.3.2 h1:Z/90sZLPOeCy2PwprqkFa25PdkusRzaj9P8zm/KNyvk=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
-go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
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@@ -342,7 +216,6 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
 go.uber.org/multierr v1.7.0 h1:zaiO/rmgFjbmCXdSYJWQcdvOCsthmdaHfr3Gm2Kx4Ec=
 go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
-go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.16.0 h1:uFRZXykJGK9lLY4HtgSw44DnIcAM+kRBP7x5m+NpAOM=
@@ -359,10 +232,8 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
 golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
-golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136 h1:A1gGSx58LAGVHUUsOf7IiR0u8Xb6W51gRwfDBhkdcaw=
 golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
-golang.org/x/image v0.0.0-20190802002840-cff245a6509b h1:+qEpEAPhDZ1o0x3tHzZTQDArnOixOzGD9HUJfcg0mb4=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
@@ -374,12 +245,10 @@ golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHl
 golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 h1:2M3HP5CCK1Si9FQhwnzYhXdG6DXeebvUHFpre8QvbyI=
 golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
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 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
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-golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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@@ -399,19 +268,17 @@ golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
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+golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f h1:OfiFi4JbukWwe3lzw+xunroH1mnC1e2Gy5cxNJApiSY=
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 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 h1:SQFwaSi55rU7vdNs9Yr0Z324VNlrF+0wMqRXT4St8ck=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -429,7 +296,6 @@ golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -439,9 +305,9 @@ golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9sn
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ=
@@ -469,7 +335,6 @@ golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20210112230658-8b4aab62c064 h1:BmCFkEH4nJrYcAc2L08yX5RhYGD4j58PTMkEUDkpz2I=
 golang.org/x/tools v0.0.0-20210112230658-8b4aab62c064/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.9 h1:j9KsMiaP1c3B0OTQGth0/k+miLGTgLsAFUCrF2vLcF8=
 golang.org/x/tools v0.1.9/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
@@ -481,12 +346,10 @@ google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEt
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
-google.golang.org/api v0.13.0 h1:Q3Ui3V3/CVinFWFiW39Iw0kMuVrRzYX0wN6OPFp0lTA=
 google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.6.1 h1:QzqyMA1tlu6CgqCDUtU9V+ZKhLFT2dkJuANu5QaxI3I=
 google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
@@ -496,25 +359,19 @@ google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRn
 google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
-google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a h1:Ob5/580gVHBJZgXnff1cZDbG+xLtMVE5mDRTe+nIsX4=
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
-google.golang.org/grpc v1.21.1 h1:j6XxA85m/6txkUCHvzlV5f+HBNl/1r5cZ2A/3IEFOO8=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
-gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/errgo.v2 v2.1.0 h1:0vLT13EuvQ0hNvakwLuFZ/jYrLp5F3kcWHXdRggjCE8=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/resty.v1 v1.12.0 h1:CuXP0Pjfw9rOuY6EP+UvtNvt5DSqHpIxILZKT/quCZI=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
@@ -532,5 +389,4 @@ honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-rsc.io/binaryregexp v0.2.0 h1:HfqmD5MEmC0zvwBuF187nq9mdnXjXsSivRiXN7SmRkE=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
diff --git a/internal/http/response.go b/internal/http/response.go
new file mode 100644
index 0000000..19e04ef
--- /dev/null
+++ b/internal/http/response.go
@@ -0,0 +1,183 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package http
+
+import (
+	"bytes"
+	"net/http"
+	"sync"
+
+	pkgHTTP "github.com/apache/apisix-go-plugin-runner/pkg/http"
+	"github.com/api7/ext-plugin-proto/go/A6"
+	hrc "github.com/api7/ext-plugin-proto/go/A6/HTTPRespCall"
+	flatbuffers "github.com/google/flatbuffers/go"
+)
+
+type Response struct {
+	r *hrc.Req
+
+	hdr    *Header
+	rawHdr http.Header
+
+	statusCode int
+
+	body *bytes.Buffer
+}
+
+func (r *Response) ID() uint32 {
+	return r.r.Id()
+}
+
+func (r *Response) StatusCode() int {
+	if r.statusCode == 0 {
+		return int(r.r.Status())
+	}
+	return r.statusCode
+}
+
+func (r *Response) Header() pkgHTTP.Header {
+	if r.hdr == nil {
+		hdr := newHeader()
+		hh := hdr.View()
+		size := r.r.HeadersLength()
+		obj := A6.TextEntry{}
+		for i := 0; i < size; i++ {
+			if r.r.Headers(&obj, i) {
+				hh.Add(string(obj.Name()), string(obj.Value()))
+			}
+		}
+		r.hdr = hdr
+		r.rawHdr = hdr.Clone()
+	}
+	return r.hdr
+}
+
+func (r *Response) Write(b []byte) (int, error) {
+	if r.body == nil {
+		r.body = &bytes.Buffer{}
+	}
+
+	return r.body.Write(b)
+}
+
+func (r *Response) WriteHeader(statusCode int) {
+	if r.statusCode != 0 {
+		// official WriteHeader can't override written status
+		// keep the same behavior
+		return
+	}
+	r.statusCode = statusCode
+}
+
+func (r *Response) ConfToken() uint32 {
+	return r.r.ConfToken()
+}
+
+func (r *Response) HasChange() bool {
+	return !(r.body == nil && r.hdr == nil && r.statusCode == 0)
+}
+
+func (r *Response) FetchChanges(builder *flatbuffers.Builder) bool {
+	if !r.HasChange() {
+		return false
+	}
+
+	var hdrVec flatbuffers.UOffsetT
+	if r.hdr != nil {
+		hdrs := []flatbuffers.UOffsetT{}
+		oldHdr := r.rawHdr
+		newHdr := r.hdr.View()
+		for n := range oldHdr {
+			if _, ok := newHdr[n]; !ok {
+				// deleted
+				name := builder.CreateString(n)
+				A6.TextEntryStart(builder)
+				A6.TextEntryAddName(builder, name)
+				te := A6.TextEntryEnd(builder)
+				hdrs = append(hdrs, te)
+			}
+		}
+		for n, v := range newHdr {
+			if raw, ok := oldHdr[n]; !ok || raw[0] != v[0] {
+				// set
+				name := builder.CreateString(n)
+				value := builder.CreateString(v[0])
+				A6.TextEntryStart(builder)
+				A6.TextEntryAddName(builder, name)
+				A6.TextEntryAddValue(builder, value)
+				te := A6.TextEntryEnd(builder)
+				hdrs = append(hdrs, te)
+			}
+		}
+		size := len(hdrs)
+		hrc.RespStartHeadersVector(builder, size)
+		for i := size - 1; i >= 0; i-- {
+			te := hdrs[i]
+			builder.PrependUOffsetT(te)
+		}
+		hdrVec = builder.EndVector(size)
+	}
+
+	var bodyVec flatbuffers.UOffsetT
+	if r.body != nil {
+		b := r.body.Bytes()
+		if len(b) > 0 {
+			bodyVec = builder.CreateByteVector(b)
+		}
+	}
+
+	hrc.RespStart(builder)
+	if r.statusCode != 0 {
+		hrc.RespAddStatus(builder, uint16(r.statusCode))
+	}
+	if hdrVec > 0 {
+		hrc.RespAddHeaders(builder, hdrVec)
+	}
+	if bodyVec > 0 {
+		hrc.RespAddBody(builder, bodyVec)
+	}
+	hrc.RespAddId(builder, r.r.Id())
+	res := hrc.RespEnd(builder)
+	builder.Finish(res)
+
+	return true
+}
+
+func (r *Response) Reset() {
+	r.body = nil
+	r.statusCode = 0
+	r.hdr = nil
+}
+
+var respPool = sync.Pool{
+	New: func() interface{} {
+		return &Response{}
+	},
+}
+
+func CreateResponse(buf []byte) *Response {
+	resp := respPool.Get().(*Response)
+
+	resp.r = hrc.GetRootAsReq(buf, 0)
+	return resp
+}
+
+func ReuseResponse(r *Response) {
+	r.Reset()
+	respPool.Put(r)
+}
diff --git a/internal/http/response_test.go b/internal/http/response_test.go
new file mode 100644
index 0000000..710cf7b
--- /dev/null
+++ b/internal/http/response_test.go
@@ -0,0 +1,189 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package http
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/apache/apisix-go-plugin-runner/internal/util"
+	"github.com/api7/ext-plugin-proto/go/A6"
+	hrc "github.com/api7/ext-plugin-proto/go/A6/HTTPRespCall"
+	flatbuffers "github.com/google/flatbuffers/go"
+	"github.com/stretchr/testify/assert"
+)
+
+type respReqOpt struct {
+	id         int
+	statusCode int
+	headers    []pair
+	token      int
+}
+
+func buildRespReq(opt respReqOpt) []byte {
+	builder := flatbuffers.NewBuilder(1024)
+
+	hdrLen := len(opt.headers)
+	var hdrVec flatbuffers.UOffsetT
+	if hdrLen > 0 {
+		hdrs := []flatbuffers.UOffsetT{}
+		for _, v := range opt.headers {
+			name := builder.CreateString(v.name)
+			value := builder.CreateString(v.value)
+			A6.TextEntryStart(builder)
+			A6.TextEntryAddName(builder, name)
+			A6.TextEntryAddValue(builder, value)
+			te := A6.TextEntryEnd(builder)
+			hdrs = append(hdrs, te)
+		}
+		size := len(hdrs)
+		hrc.ReqStartHeadersVector(builder, size)
+		for i := size - 1; i >= 0; i-- {
+			te := hdrs[i]
+			builder.PrependUOffsetT(te)
+		}
+		hdrVec = builder.EndVector(size)
+	}
+
+	hrc.ReqStart(builder)
+	hrc.ReqAddId(builder, uint32(opt.id))
+	hrc.ReqAddConfToken(builder, uint32(opt.token))
+
+	if opt.statusCode != 0 {
+		hrc.ReqAddStatus(builder, uint16(opt.statusCode))
+	}
+	if hdrVec > 0 {
+		hrc.ReqAddHeaders(builder, hdrVec)
+	}
+	r := hrc.ReqEnd(builder)
+	builder.Finish(r)
+	return builder.FinishedBytes()
+}
+
+func TestResponse_ID(t *testing.T) {
+	out := buildRespReq(respReqOpt{id: 1234})
+	r := CreateResponse(out)
+	assert.Equal(t, 1234, int(r.ID()))
+	ReuseResponse(r)
+}
+
+func TestResponse_ConfToken(t *testing.T) {
+	out := buildRespReq(respReqOpt{token: 1234})
+	r := CreateResponse(out)
+	assert.Equal(t, 1234, int(r.ConfToken()))
+	ReuseResponse(r)
+}
+
+func TestResponse_StatusCode(t *testing.T) {
+	out := buildRespReq(respReqOpt{statusCode: 200})
+	r := CreateResponse(out)
+	assert.Equal(t, 200, r.StatusCode())
+	ReuseResponse(r)
+}
+
+func TestResponse_WriteHeader(t *testing.T) {
+	out := buildRespReq(respReqOpt{statusCode: 200})
+	r := CreateResponse(out)
+
+	r.WriteHeader(304)
+	assert.Equal(t, 304, r.StatusCode())
+
+	builder := util.GetBuilder()
+	assert.True(t, r.FetchChanges(builder))
+	resp := hrc.GetRootAsResp(builder.FinishedBytes(), 0)
+	assert.Equal(t, 304, int(resp.Status()))
+	ReuseResponse(r)
+}
+
+func TestResponse_TwiceWriteHeader(t *testing.T) {
+	out := buildRespReq(respReqOpt{statusCode: 200})
+	r := CreateResponse(out)
+
+	r.WriteHeader(304)
+	r.WriteHeader(502)
+
+	builder := util.GetBuilder()
+	assert.True(t, r.FetchChanges(builder))
+	resp := hrc.GetRootAsResp(builder.FinishedBytes(), 0)
+	assert.Equal(t, 304, int(resp.Status()))
+	ReuseResponse(r)
+}
+
+func TestResponse_Header(t *testing.T) {
+	out := buildRespReq(respReqOpt{headers: []pair{
+		{"k", "v"},
+		{"cache-control", "no-cache"},
+		{"cache-control", "no-store"},
+		{"cat", "dog"},
+	}})
+	r := CreateResponse(out)
+	hdr := r.Header()
+	assert.Equal(t, "v", hdr.Get("k"))
+	assert.Equal(t, "no-cache", hdr.Get("Cache-Control"))
+	assert.Equal(t, "no-cache", hdr.Get("cache-control"))
+
+	hdr.Del("empty")
+	hdr.Del("k")
+	assert.Equal(t, "", hdr.Get("k"))
+
+	hdr.Set("cache-control", "max-age=10s")
+	assert.Equal(t, "max-age=10s", hdr.Get("Cache-Control"))
+	hdr.Del("cache-Control")
+	assert.Equal(t, "", hdr.Get("cache-control"))
+
+	hdr.Set("k", "v2")
+	hdr.Del("cat")
+
+	builder := util.GetBuilder()
+	assert.True(t, r.FetchChanges(builder))
+	resp := hrc.GetRootAsResp(builder.FinishedBytes(), 0)
+	assert.Equal(t, 3, resp.HeadersLength())
+
+	exp := http.Header{}
+	exp.Set("Cache-Control", "")
+	exp.Set("cat", "")
+	exp.Set("k", "v2")
+	res := http.Header{}
+	for i := 0; i < resp.HeadersLength(); i++ {
+		e := &A6.TextEntry{}
+		resp.Headers(e, i)
+		res.Add(string(e.Name()), string(e.Value()))
+	}
+	assert.Equal(t, exp, res)
+	ReuseResponse(r)
+}
+
+func TestResponse_Write(t *testing.T) {
+	out := buildRespReq(respReqOpt{
+		id:         1234,
+		statusCode: 200,
+		headers:    []pair{{"k", "v"}},
+	})
+	r := CreateResponse(out)
+	r.Write([]byte("hello "))
+	r.Write([]byte("world"))
+
+	builder := util.GetBuilder()
+	assert.True(t, r.FetchChanges(builder))
+	resp := hrc.GetRootAsResp(builder.FinishedBytes(), 0)
+	assert.Equal(t, 1234, int(resp.Id()))
+	assert.Equal(t, 0, int(resp.Status()))
+	assert.Equal(t, 0, resp.HeadersLength())
+	assert.Equal(t, []byte("hello world"), resp.BodyBytes())
+	ReuseResponse(r)
+}
diff --git a/internal/plugin/plugin.go b/internal/plugin/plugin.go
index 74a4bfc..118f51c 100644
--- a/internal/plugin/plugin.go
+++ b/internal/plugin/plugin.go
@@ -24,7 +24,8 @@ import (
 	"net/http"
 	"sync"
 
-	hrc "github.com/api7/ext-plugin-proto/go/A6/HTTPReqCall"
+	hreqc "github.com/api7/ext-plugin-proto/go/A6/HTTPReqCall"
+	hrespc "github.com/api7/ext-plugin-proto/go/A6/HTTPRespCall"
 	flatbuffers "github.com/google/flatbuffers/go"
 
 	inHTTP "github.com/apache/apisix-go-plugin-runner/internal/http"
@@ -63,6 +64,9 @@ var (
 	ErrMissingParseConfMethod      = errors.New("missing ParseConf method")
 	ErrMissingRequestFilterMethod  = errors.New("missing RequestFilter method")
 	ErrMissingResponseFilterMethod = errors.New("missing ResponseFilter method")
+
+	RequestPhase  = requestPhase{}
+	ResponsePhase = responsePhase{}
 )
 
 func RegisterPlugin(name string, pc ParseConfFunc, sv RequestFilterFunc, rsv ResponseFilterFunc) error {
@@ -102,7 +106,10 @@ func findPlugin(name string) *pluginOpts {
 	return nil
 }
 
-func filter(conf RuleConf, w *inHTTP.ReqResponse, r pkgHTTP.Request) error {
+type requestPhase struct {
+}
+
+func (ph *requestPhase) filter(conf RuleConf, w *inHTTP.ReqResponse, r *inHTTP.Request) error {
 	for _, c := range conf {
 		plugin := findPlugin(c.Name)
 		if plugin == nil {
@@ -122,7 +129,7 @@ func filter(conf RuleConf, w *inHTTP.ReqResponse, r pkgHTTP.Request) error {
 	return nil
 }
 
-func reportAction(id uint32, req *inHTTP.Request, resp *inHTTP.ReqResponse) *flatbuffers.Builder {
+func (ph *requestPhase) builder(id uint32, resp *inHTTP.ReqResponse, req *inHTTP.Request) *flatbuffers.Builder {
 	builder := util.GetBuilder()
 
 	if resp != nil && resp.FetchChanges(id, builder) {
@@ -133,9 +140,9 @@ func reportAction(id uint32, req *inHTTP.Request, resp *inHTTP.ReqResponse) *fla
 		return builder
 	}
 
-	hrc.RespStart(builder)
-	hrc.RespAddId(builder, id)
-	res := hrc.RespEnd(builder)
+	hreqc.RespStart(builder)
+	hreqc.RespAddId(builder, id)
+	res := hreqc.RespEnd(builder)
 	builder.Finish(res)
 	return builder
 }
@@ -154,12 +161,68 @@ func HTTPReqCall(buf []byte, conn net.Conn) (*flatbuffers.Builder, error) {
 		return nil, err
 	}
 
-	err = filter(conf, resp, req)
+	err = RequestPhase.filter(conf, resp, req)
 	if err != nil {
 		return nil, err
 	}
 
 	id := req.ID()
-	builder := reportAction(id, req, resp)
+	builder := RequestPhase.builder(id, resp, req)
 	return builder, nil
 }
+
+type responsePhase struct {
+}
+
+func (ph *responsePhase) filter(conf RuleConf, w *inHTTP.Response) error {
+	for _, c := range conf {
+		plugin := findPlugin(c.Name)
+		if plugin == nil {
+			log.Warnf("can't find plugin %s, skip", c.Name)
+			continue
+		}
+
+		log.Infof("run plugin %s", c.Name)
+
+		plugin.ResponseFilter(c.Value, w)
+
+		if w.HasChange() {
+			// response is generated, no need to continue
+			break
+		}
+	}
+	return nil
+}
+
+func (ph *responsePhase) builder(id uint32, resp *inHTTP.Response) *flatbuffers.Builder {
+	builder := util.GetBuilder()
+	if resp != nil && resp.FetchChanges(builder) {
+		return builder
+	}
+
+	hrespc.RespStart(builder)
+	hrespc.RespAddId(builder, id)
+	res := hrespc.RespEnd(builder)
+	builder.Finish(res)
+
+	return builder
+}
+
+func HTTPRespCall(buf []byte, conn net.Conn) (*flatbuffers.Builder, error) {
+	resp := inHTTP.CreateResponse(buf)
+	defer inHTTP.ReuseResponse(resp)
+
+	token := resp.ConfToken()
+	conf, err := GetRuleConf(token)
+	if err != nil {
+		return nil, err
+	}
+
+	err = ResponsePhase.filter(conf, resp)
+	if err != nil {
+		return nil, err
+	}
+
+	id := resp.ID()
+	return ResponsePhase.builder(id, resp), nil
+}
diff --git a/internal/plugin/plugin_test.go b/internal/plugin/plugin_test.go
index e95a34d..7f654dd 100644
--- a/internal/plugin/plugin_test.go
+++ b/internal/plugin/plugin_test.go
@@ -26,7 +26,8 @@ import (
 	inHTTP "github.com/apache/apisix-go-plugin-runner/internal/http"
 	pkgHTTP "github.com/apache/apisix-go-plugin-runner/pkg/http"
 
-	hrc "github.com/api7/ext-plugin-proto/go/A6/HTTPReqCall"
+	hreqc "github.com/api7/ext-plugin-proto/go/A6/HTTPReqCall"
+	hrespc "github.com/api7/ext-plugin-proto/go/A6/HTTPRespCall"
 	flatbuffers "github.com/google/flatbuffers/go"
 	"github.com/stretchr/testify/assert"
 )
@@ -50,10 +51,10 @@ func TestHTTPReqCall(t *testing.T) {
 	SetRuleConfInTest(1, RuleConf{})
 
 	builder := flatbuffers.NewBuilder(1024)
-	hrc.ReqStart(builder)
-	hrc.ReqAddId(builder, 233)
-	hrc.ReqAddConfToken(builder, 1)
-	r := hrc.ReqEnd(builder)
+	hreqc.ReqStart(builder)
+	hreqc.ReqAddId(builder, 233)
+	hreqc.ReqAddConfToken(builder, 1)
+	r := hreqc.ReqEnd(builder)
 	builder.Finish(r)
 	out := builder.FinishedBytes()
 
@@ -61,9 +62,9 @@ func TestHTTPReqCall(t *testing.T) {
 	assert.Nil(t, err)
 
 	out = b.FinishedBytes()
-	resp := hrc.GetRootAsResp(out, 0)
+	resp := hreqc.GetRootAsResp(out, 0)
 	assert.Equal(t, uint32(233), resp.Id())
-	assert.Equal(t, hrc.ActionNONE, resp.ActionType())
+	assert.Equal(t, hreqc.ActionNONE, resp.ActionType())
 }
 
 func TestHTTPReqCall_FailedToParseConf(t *testing.T) {
@@ -84,10 +85,10 @@ func TestHTTPReqCall_FailedToParseConf(t *testing.T) {
 	bazConf := builder.CreateString("")
 	prepareConfWithData(builder, bazName, bazConf)
 
-	hrc.ReqStart(builder)
-	hrc.ReqAddId(builder, 233)
-	hrc.ReqAddConfToken(builder, 1)
-	r := hrc.ReqEnd(builder)
+	hreqc.ReqStart(builder)
+	hreqc.ReqAddId(builder, 233)
+	hreqc.ReqAddConfToken(builder, 1)
+	r := hreqc.ReqEnd(builder)
 	builder.Finish(r)
 	out := builder.FinishedBytes()
 
@@ -95,9 +96,9 @@ func TestHTTPReqCall_FailedToParseConf(t *testing.T) {
 	assert.Nil(t, err)
 
 	out = b.FinishedBytes()
-	resp := hrc.GetRootAsResp(out, 0)
+	resp := hreqc.GetRootAsResp(out, 0)
 	assert.Equal(t, uint32(233), resp.Id())
-	assert.Equal(t, hrc.ActionNONE, resp.ActionType())
+	assert.Equal(t, hreqc.ActionNONE, resp.ActionType())
 }
 
 func TestRegisterPlugin(t *testing.T) {
@@ -322,7 +323,7 @@ func TestRegisterPluginConcurrent(t *testing.T) {
 	}
 }
 
-func TestFilter(t *testing.T) {
+func TestRequestFilter(t *testing.T) {
 	InitConfCache(1 * time.Millisecond)
 
 	fooParseConf := func(in []byte) (conf interface{}, err error) {
@@ -352,16 +353,16 @@ func TestFilter(t *testing.T) {
 	prepareConfWithData(builder, fooName, fooConf, barName, barConf)
 
 	res, _ := GetRuleConf(1)
-	hrc.ReqStart(builder)
-	hrc.ReqAddId(builder, 233)
-	hrc.ReqAddConfToken(builder, 1)
-	r := hrc.ReqEnd(builder)
+	hreqc.ReqStart(builder)
+	hreqc.ReqAddId(builder, 233)
+	hreqc.ReqAddConfToken(builder, 1)
+	r := hreqc.ReqEnd(builder)
 	builder.Finish(r)
 	out := builder.FinishedBytes()
 
 	req := inHTTP.CreateRequest(out)
 	resp := inHTTP.CreateReqResponse()
-	filter(res, resp, req)
+	RequestPhase.filter(res, resp, req)
 
 	assert.Equal(t, "bar", resp.Header().Get("foo"))
 	assert.Equal(t, "", req.Header().Get("foo"))
@@ -370,13 +371,13 @@ func TestFilter(t *testing.T) {
 	resp = inHTTP.CreateReqResponse()
 	prepareConfWithData(builder, barName, barConf, fooName, fooConf)
 	res, _ = GetRuleConf(2)
-	filter(res, resp, req)
+	RequestPhase.filter(res, resp, req)
 
 	assert.Equal(t, "bar", resp.Header().Get("foo"))
 	assert.Equal(t, "bar", req.Header().Get("foo"))
 }
 
-func TestFilter_SetRespHeaderDoNotBreakReq(t *testing.T) {
+func TestRequestFilter_SetRespHeaderDoNotBreakReq(t *testing.T) {
 	InitConfCache(1 * time.Millisecond)
 
 	barParseConf := func(in []byte) (conf interface{}, err error) {
@@ -402,22 +403,22 @@ func TestFilter_SetRespHeaderDoNotBreakReq(t *testing.T) {
 	prepareConfWithData(builder, filterSetRespName, filterSetRespConf, barName, barConf)
 
 	res, _ := GetRuleConf(1)
-	hrc.ReqStart(builder)
-	hrc.ReqAddId(builder, 233)
-	hrc.ReqAddConfToken(builder, 1)
-	r := hrc.ReqEnd(builder)
+	hreqc.ReqStart(builder)
+	hreqc.ReqAddId(builder, 233)
+	hreqc.ReqAddConfToken(builder, 1)
+	r := hreqc.ReqEnd(builder)
 	builder.Finish(r)
 	out := builder.FinishedBytes()
 
 	req := inHTTP.CreateRequest(out)
 	resp := inHTTP.CreateReqResponse()
-	filter(res, resp, req)
+	RequestPhase.filter(res, resp, req)
 
 	assert.Equal(t, "bar", req.Header().Get("foo"))
 	assert.Equal(t, "baz", resp.Header().Get("foo"))
 }
 
-func TestFilter_SetRespHeader(t *testing.T) {
+func TestRequestFilter_SetRespHeader(t *testing.T) {
 	InitConfCache(1 * time.Millisecond)
 
 	filterSetRespHeaderParseConf := func(in []byte) (conf interface{}, err error) {
@@ -435,16 +436,107 @@ func TestFilter_SetRespHeader(t *testing.T) {
 	prepareConfWithData(builder, filterSetRespName, filterSetRespConf)
 
 	res, _ := GetRuleConf(1)
-	hrc.ReqStart(builder)
-	hrc.ReqAddId(builder, 233)
-	hrc.ReqAddConfToken(builder, 1)
-	r := hrc.ReqEnd(builder)
+	hreqc.ReqStart(builder)
+	hreqc.ReqAddId(builder, 233)
+	hreqc.ReqAddConfToken(builder, 1)
+	r := hreqc.ReqEnd(builder)
 	builder.Finish(r)
 	out := builder.FinishedBytes()
 
 	req := inHTTP.CreateRequest(out)
 	resp := inHTTP.CreateReqResponse()
-	filter(res, resp, req)
+	RequestPhase.filter(res, resp, req)
 
 	assert.Equal(t, "baz", req.RespHeader().Get("foo"))
 }
+
+func TestHTTPRespCall(t *testing.T) {
+	InitConfCache(10 * time.Millisecond)
+	SetRuleConfInTest(1, RuleConf{})
+
+	builder := flatbuffers.NewBuilder(1024)
+	hrespc.ReqStart(builder)
+	hrespc.ReqAddId(builder, 233)
+	hrespc.ReqAddStatus(builder, 200)
+	hrespc.ReqAddConfToken(builder, 1)
+	r := hrespc.ReqEnd(builder)
+	builder.Finish(r)
+	out := builder.FinishedBytes()
+
+	b, err := HTTPRespCall(out, nil)
+	assert.Nil(t, err)
+
+	out = b.FinishedBytes()
+	resp := hrespc.GetRootAsResp(out, 0)
+	assert.Equal(t, uint32(233), resp.Id())
+	assert.Equal(t, uint16(0), resp.Status())
+}
+
+func TestHTTPRespCall_FailedToParseConf(t *testing.T) {
+	InitConfCache(1 * time.Millisecond)
+
+	bazParseConf := func(in []byte) (conf interface{}, err error) {
+		return nil, errors.New("ouch")
+	}
+	bazFilter := func(conf interface{}, w pkgHTTP.Response) {
+		w.Header().Set("foo", "bar")
+		assert.Equal(t, "foo", conf.(string))
+	}
+
+	RegisterPlugin("baz", bazParseConf, emptyRequestFilter, bazFilter)
+
+	builder := flatbuffers.NewBuilder(1024)
+	bazName := builder.CreateString("baz")
+	bazConf := builder.CreateString("")
+	prepareConfWithData(builder, bazName, bazConf)
+
+	hrespc.ReqStart(builder)
+	hrespc.ReqAddId(builder, 233)
+	hrespc.ReqAddStatus(builder, 200)
+	hrespc.ReqAddConfToken(builder, 1)
+	r := hrespc.ReqEnd(builder)
+	builder.Finish(r)
+	out := builder.FinishedBytes()
+
+	b, err := HTTPRespCall(out, nil)
+	assert.Nil(t, err)
+
+	out = b.FinishedBytes()
+	resp := hrespc.GetRootAsResp(out, 0)
+	assert.Equal(t, uint32(233), resp.Id())
+}
+
+func TestResponseFilter(t *testing.T) {
+	InitConfCache(1 * time.Millisecond)
+
+	beeParseConf := func(in []byte) (conf interface{}, err error) {
+		return "bee", nil
+	}
+	beeFilter := func(conf interface{}, w pkgHTTP.Response) {
+		w.Header().Set("bee", "bar")
+		w.WriteHeader(200)
+		assert.Equal(t, "bee", conf.(string))
+	}
+
+	RegisterPlugin("bee", beeParseConf, emptyRequestFilter, beeFilter)
+
+	builder := flatbuffers.NewBuilder(1024)
+	beeName := builder.CreateString("bee")
+	beeConf := builder.CreateString("bee")
+	prepareConfWithData(builder, beeName, beeConf)
+
+	res, _ := GetRuleConf(1)
+	hrespc.ReqStart(builder)
+	hrespc.ReqAddStatus(builder, 502)
+	hrespc.ReqAddId(builder, 233)
+	hrespc.ReqAddConfToken(builder, 1)
+	r := hrespc.ReqEnd(builder)
+	builder.Finish(r)
+	out := builder.FinishedBytes()
+
+	resp := inHTTP.CreateResponse(out)
+	ResponsePhase.filter(res, resp)
+
+	assert.Equal(t, "bar", resp.Header().Get("bee"))
+	assert.Equal(t, 200, resp.StatusCode())
+}
diff --git a/internal/server/server.go b/internal/server/server.go
index 72f4a81..c28ddf4 100644
--- a/internal/server/server.go
+++ b/internal/server/server.go
@@ -51,6 +51,9 @@ var (
 		util.RPCHTTPReqCall: func(buf []byte, conn net.Conn) (*flatbuffers.Builder, error) {
 			return plugin.HTTPReqCall(buf, conn)
 		},
+		util.RPCHTTPRespCall: func(buf []byte, conn net.Conn) (*flatbuffers.Builder, error) {
+			return plugin.HTTPRespCall(buf, conn)
+		},
 	}
 )
 
diff --git a/internal/util/msg.go b/internal/util/msg.go
index 3020eb9..f95e2d9 100644
--- a/internal/util/msg.go
+++ b/internal/util/msg.go
@@ -36,6 +36,7 @@ const (
 	RPCPrepareConf
 	RPCHTTPReqCall
 	RPCExtraInfo
+	RPCHTTPRespCall
 )
 
 type RPCResult struct {