diff --git a/README.md b/README.md
index 065a9f6..2417b2d 100644
--- a/README.md
+++ b/README.md
@@ -120,3 +120,6 @@ Runtime dependent components:
 
 Web components:
 - [Gin](https://github.com/gin-gonic/gin): a HTTP web framework written in Go (Golang), under [MIT license]
+
+WebUI components:
+- [Crayons](https://github.com/freshworks/crayons): A UI Kit comprising of web components for building Freshworks Apps! - [License not specified yet]
diff --git a/go.mod b/go.mod
index 3f0a6cb..5cb42c1 100644
--- a/go.mod
+++ b/go.mod
@@ -7,12 +7,16 @@ require (
 	github.com/gin-contrib/cors v1.4.0
 	github.com/gin-contrib/gzip v0.0.6
 	github.com/gin-gonic/gin v1.9.0
+	github.com/stretchr/testify v1.8.1
+	modernc.org/sqlite v1.22.1
 )
 
 require (
 	github.com/bytedance/sonic v1.8.0 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dlclark/regexp2 v1.7.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
@@ -20,20 +24,35 @@ require (
 	github.com/go-sourcemap/sourcemap v2.1.3+incompatible // indirect
 	github.com/goccy/go-json v0.10.0 // indirect
 	github.com/google/pprof v0.0.0-20230207041349-798e818bf904 // indirect
+	github.com/google/uuid v1.3.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.3 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
 	github.com/mattn/go-isatty v0.0.17 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.9 // indirect
 	golang.org/x/arch v0.0.0-20210923205945-b76863e36670 // indirect
 	golang.org/x/crypto v0.5.0 // indirect
+	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
 	golang.org/x/net v0.7.0 // indirect
 	golang.org/x/sys v0.5.0 // indirect
 	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/tools v0.1.12 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	lukechampine.com/uint128 v1.2.0 // indirect
+	modernc.org/cc/v3 v3.40.0 // indirect
+	modernc.org/ccgo/v3 v3.16.13 // indirect
+	modernc.org/libc v1.22.5 // indirect
+	modernc.org/mathutil v1.5.0 // indirect
+	modernc.org/memory v1.5.0 // indirect
+	modernc.org/opt v0.1.3 // indirect
+	modernc.org/strutil v1.1.3 // indirect
+	modernc.org/token v1.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 68e3f5d..6b33b03 100644
--- a/go.sum
+++ b/go.sum
@@ -19,6 +19,8 @@ github.com/dop251/goja v0.0.0-20230402114112-623f9dda9079 h1:xkbJGxVnk5sM8/LXeTK
 github.com/dop251/goja v0.0.0-20230402114112-623f9dda9079/go.mod h1:QMWlm50DNe14hD7t24KEqZuUdC9sOTy8W6XbCU1mlw4=
 github.com/dop251/goja_nodejs v0.0.0-20210225215109-d91c329300e7/go.mod h1:hn7BA7c8pLvoGndExHudxTDKZ84Pyvv+90pbBjbTz0Y=
 github.com/dop251/goja_nodejs v0.0.0-20211022123610-8dd9abb0616d/go.mod h1:DngW8aVqWbuLRMHItjPUyqdj+HWPvnQe8V8y1nDpIbM=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/gin-contrib/cors v1.4.0 h1:oJ6gwtUl3lqV0WEIwM/LxPF1QZ5qe2lGWdY2+bz7y0g=
 github.com/gin-contrib/cors v1.4.0/go.mod h1:bs9pNM0x/UsmHPBWT2xZz9ROh8xYjYkiURUfmBoMlcs=
 github.com/gin-contrib/gzip v0.0.6 h1:NjcunTcGAj5CO1gn4N8jHOSIeRFHIbn51z6K+xaN4d4=
@@ -45,16 +47,21 @@ github.com/goccy/go-json v0.9.7/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGF
 github.com/goccy/go-json v0.10.0 h1:mXKd9Qw4NuzShiRlOXKews24ufknHO7gx30lsDyokKA=
 github.com/goccy/go-json v0.10.0/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/pprof v0.0.0-20230207041349-798e818bf904 h1:4/hN5RUoecvl+RmJRE2YxKWtnnQls6rQjjW5oV7qg2U=
 github.com/google/pprof v0.0.0-20230207041349-798e818bf904/go.mod h1:uglQLonpP8qtYCYyzA+8c/9qtqgA3qsXGYqCPKARAFg=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/ianlancetaylor/demangle v0.0.0-20220319035150-800ac71e25c2/go.mod h1:aYm2/VgdVmcIU8iMfdMvDMsRAQjcfZSKFby6HOFvi/w=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
-github.com/klauspost/cpuid/v2 v2.0.9 h1:lgaqFMSdTdQYdZ04uHyN2d/eKdOMyi2YLSvlQIBFYa4=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
+github.com/klauspost/cpuid/v2 v2.2.3 h1:sxCkb+qR91z4vsqw4vGGZlDgPz3G7gjaLyK3V8y70BU=
+github.com/klauspost/cpuid/v2 v2.2.3/go.mod h1:RVVoqg1df56z8g3pUjL/3lE5UfnlrJX8tyFgg4nqhuY=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
@@ -68,6 +75,7 @@ github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ic
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-isatty v0.0.17 h1:BTarxUcIeDqL27Mc+vyvdWYSL28zpIhv3RoTdsLMPng=
 github.com/mattn/go-isatty v0.0.17/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-sqlite3 v1.14.16 h1:yOQRA0RpS5PFz/oikGwBEqvAWhWg5ufRz4ETLjwpU1Y=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
@@ -78,6 +86,9 @@ github.com/pelletier/go-toml/v2 v2.0.6/go.mod h1:eumQOmlWiOPt5WriQQqoM5y18pDHwha
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
 github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
@@ -105,6 +116,7 @@ golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE=
 golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
+golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 h1:6zppjxzCulZykYSLyVDYbneBfbaBIQPYMevg0bEwv2s=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -120,6 +132,7 @@ golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
@@ -135,9 +148,9 @@ golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12 h1:VveCTK38A2rkS8ZqFY25HIDFscX5X9OoEhJd3quQmXU=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
@@ -154,4 +167,28 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+lukechampine.com/uint128 v1.2.0 h1:mBi/5l91vocEN8otkC5bDLhi2KdCticRiwbdB0O+rjI=
+lukechampine.com/uint128 v1.2.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
+modernc.org/cc/v3 v3.40.0 h1:P3g79IUS/93SYhtoeaHW+kRCIrYaxJ27MFPv+7kaTOw=
+modernc.org/cc/v3 v3.40.0/go.mod h1:/bTg4dnWkSXowUO6ssQKnOV0yMVxDYNIsIrzqTFDGH0=
+modernc.org/ccgo/v3 v3.16.13 h1:Mkgdzl46i5F/CNR/Kj80Ri59hC8TKAhZrYSaqvkwzUw=
+modernc.org/ccgo/v3 v3.16.13/go.mod h1:2Quk+5YgpImhPjv2Qsob1DnZ/4som1lJTodubIcoUkY=
+modernc.org/ccorpus v1.11.6 h1:J16RXiiqiCgua6+ZvQot4yUuUy8zxgqbqEEUuGPlISk=
+modernc.org/httpfs v1.0.6 h1:AAgIpFZRXuYnkjftxTAZwMIiwEqAfk8aVB2/oA6nAeM=
+modernc.org/libc v1.22.5 h1:91BNch/e5B0uPbJFgqbxXuOnxBQjlS//icfQEGmvyjE=
+modernc.org/libc v1.22.5/go.mod h1:jj+Z7dTNX8fBScMVNRAYZ/jF91K8fdT2hYMThc3YjBY=
+modernc.org/mathutil v1.5.0 h1:rV0Ko/6SfM+8G+yKiyI830l3Wuz1zRutdslNoQ0kfiQ=
+modernc.org/mathutil v1.5.0/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/memory v1.5.0 h1:N+/8c5rE6EqugZwHii4IFsaJ7MUhoWX07J5tC/iI5Ds=
+modernc.org/memory v1.5.0/go.mod h1:PkUhL0Mugw21sHPeskwZW4D6VscE/GQJOnIpCnW6pSU=
+modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
+modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
+modernc.org/sqlite v1.22.1 h1:P2+Dhp5FR1RlVRkQ3dDfCiv3Ok8XPxqpe70IjYVA9oE=
+modernc.org/sqlite v1.22.1/go.mod h1:OrDj17Mggn6MhE+iPbBNf7RGKODDE9NFT0f3EwDzJqk=
+modernc.org/strutil v1.1.3 h1:fNMm+oJklMGYfU9Ylcywl0CO5O6nTfaowNsh2wpPjzY=
+modernc.org/strutil v1.1.3/go.mod h1:MEHNA7PdEnEwLvspRMtWTNnp2nnyvMfkimT1NKNAGbw=
+modernc.org/tcl v1.15.2 h1:C4ybAYCGJw968e+Me18oW55kD/FexcHbqH2xak1ROSY=
+modernc.org/token v1.0.1 h1:A3qvTqOwexpfZZeyI0FeGPDlSWX5pjZu9hF4lU+EKWg=
+modernc.org/token v1.0.1/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
+modernc.org/z v1.7.3 h1:zDJf6iHjrnB+WRD88stbXokugjyc0/pB91ri1gO6LZY=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
diff --git a/internal/server/api/v1/parse.go b/internal/server/api/v1/parse.go
index 4a58b37..330c6dd 100644
--- a/internal/server/api/v1/parse.go
+++ b/internal/server/api/v1/parse.go
@@ -1,8 +1,12 @@
 package v1
 
 import (
+	"database/sql"
+	"errors"
+	"fmt"
 	"github.com/gin-gonic/gin"
 	"github.com/zjc17/exif-web/internal/define"
+	"github.com/zjc17/exif-web/internal/storage"
 	"github.com/zjc17/exif-web/internal/util"
 	"github.com/zjc17/exif-web/pkg/fetcher"
 	"github.com/zjc17/exif-web/pkg/parser"
@@ -13,11 +17,42 @@ import (
 
 func GetParse(c *gin.Context) {
 	url := c.Query("url")
-	image, _ := fetcher.GetImagePartial(url, &fetcher.GetImageParam{
-		RequestHeader: fetcher.BuildRequestHeader(c.GetHeader),
-	})
-	p := parser.NewParser()
-	result, _ := p.Parse(image)
+
+	var jsonStr string
+
+	// Check Storage
+	jsonStr, err := storage.Get(url)
+
+	if err != nil {
+		fmt.Println("cache miss:", url)
+		if !errors.Is(err, sql.ErrNoRows) {
+			c.JSON(http.StatusInternalServerError, err.Error())
+			return
+		}
+		image, _ := fetcher.GetImagePartial(url, &fetcher.GetImageParam{
+			RequestHeader: fetcher.BuildRequestHeader(c.GetHeader),
+		})
+
+		p := parser.NewParser()
+		jsonStr, err = p.ParseJsonString(image)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, err.Error())
+			return
+		}
+		err = storage.Store(url, jsonStr)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, "failed to store exif")
+			return
+		}
+	} else {
+		fmt.Println("cache hit:", url)
+	}
+
+	result := new(parser.ParseResult)
+	err = result.From(jsonStr)
+	if err != nil {
+		return
+	}
 	c.JSON(http.StatusOK, result)
 	return
 }
diff --git a/internal/storage/storage.go b/internal/storage/storage.go
new file mode 100644
index 0000000..7f727f3
--- /dev/null
+++ b/internal/storage/storage.go
@@ -0,0 +1,81 @@
+package storage
+
+import (
+	"database/sql"
+	"fmt"
+	_ "modernc.org/sqlite"
+)
+
+type (
+	DatabaseType       int
+	InitDatabaseOption struct {
+		SqlitePath   string
+		DatabaseType DatabaseType
+	}
+)
+
+var (
+	db                        *sql.DB
+	defaultInitDatabaseOption = &InitDatabaseOption{
+		SqlitePath:   "/tmp/exif-web.sqlite3",
+		DatabaseType: SQLite,
+	}
+)
+
+const (
+	InMemorySQLite DatabaseType = iota
+	SQLite
+)
+
+func init() {
+	InitDatabase(nil)
+}
+
+func InitDatabase(option *InitDatabaseOption) {
+	if option == nil {
+		option = defaultInitDatabaseOption
+	}
+	var database *sql.DB
+	var err error
+	switch option.DatabaseType {
+	case InMemorySQLite:
+		database, err = sql.Open("sqlite", ":memory:")
+	case SQLite:
+		database, err = sql.Open("sqlite", option.SqlitePath)
+	}
+	if err != nil || database == nil {
+		panic("failed to open database")
+	} else {
+		fmt.Println("open database success")
+		db = database
+	}
+	initSchema()
+}
+
+func initSchema() {
+	_, err := db.Exec(`
+		CREATE TABLE IF NOT EXISTS kv (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			key VARCHAR(512) NOT NULL UNIQUE,
+			value TEXT NOT NULL,
+			created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+		);
+	`)
+	if err != nil {
+		panic("failed to init schema")
+	}
+}
+
+func Store(key, value string) (err error) {
+	_, err = db.Exec(`INSERT OR REPLACE INTO kv (key, value) VALUES (?, ?)`, key, value)
+	return
+}
+
+func Get(key string) (value string, err error) {
+	err = db.QueryRow(`SELECT value FROM kv WHERE key = ? LIMIT 1`, key).Scan(&value)
+	return
+}
+
+func DB() *sql.DB {
+	return db
+}
diff --git a/internal/storage/storage_test.go b/internal/storage/storage_test.go
new file mode 100644
index 0000000..8d30adc
--- /dev/null
+++ b/internal/storage/storage_test.go
@@ -0,0 +1,52 @@
+package storage
+
+import (
+	"github.com/stretchr/testify/assert"
+	_ "modernc.org/sqlite"
+	"testing"
+)
+
+func TestInitDatabase_InMemorySQLite(t *testing.T) {
+	InitDatabase(&InitDatabaseOption{
+		DatabaseType: InMemorySQLite,
+	})
+	db := DB()
+	err := db.Ping()
+	assert.Nil(t, err)
+}
+
+func TestOpenDatabase_SQLite(t *testing.T) {
+	InitDatabase(&InitDatabaseOption{
+		DatabaseType: SQLite,
+		SqlitePath:   "/tmp/exif-web.sqlite",
+	})
+	db := DB()
+	err := db.Ping()
+	assert.Nil(t, err)
+}
+
+func Test_Store(t *testing.T) {
+	InitDatabase(&InitDatabaseOption{
+		DatabaseType: SQLite,
+		SqlitePath:   "/tmp/exif-web.sqlite3",
+	})
+	var err error
+	err = Store("key", "value")
+	assert.Nil(t, err)
+}
+
+func Test_Get(t *testing.T) {
+	InitDatabase(&InitDatabaseOption{
+		DatabaseType: InMemorySQLite,
+	})
+
+	err := Store("key", "value")
+	assert.Nil(t, err)
+	value, err := Get("key")
+	assert.True(t, value == "value")
+
+	err = Store("key", "value-1")
+	assert.Nil(t, err)
+	value, err = Get("key")
+	assert.True(t, value == "value-1")
+}
diff --git a/pkg/parser/model.go b/pkg/parser/model.go
index e3fc036..a0beda7 100644
--- a/pkg/parser/model.go
+++ b/pkg/parser/model.go
@@ -87,3 +87,10 @@ type ParseResult struct {
 	Latitude                 float64         `json:"latitude"`
 	Longitude                float64         `json:"longitude"`
 }
+
+func (p *ParseResult) From(jsonStr string) (err error) {
+	if err = json.Unmarshal([]byte(jsonStr), p); err != nil {
+		return
+	}
+	return
+}
diff --git a/pkg/parser/parser.go b/pkg/parser/parser.go
index 968859a..ef704a0 100644
--- a/pkg/parser/parser.go
+++ b/pkg/parser/parser.go
@@ -12,8 +12,9 @@ import (
 
 type (
 	Parser interface {
-		ParseRaw(data []byte) (result map[string]any, err error)
 		Parse(data []byte) (parseResult *ParseResult, err error)
+		ParseJsonString(data []byte) (jsonStr string, err error)
+		ParseRaw(data []byte) (result map[string]any, err error)
 	}
 
 	parser struct {
@@ -28,19 +29,28 @@ func NewParser() Parser {
 }
 
 func (p parser) Parse(data []byte) (parseResult *ParseResult, err error) {
-	result, err := p.ParseRaw(data)
+	jsonStr, err := p.ParseJsonString(data)
 	if err != nil {
 		return
 	}
-	parseResult = &ParseResult{}
-	bytes, err := json.Marshal(result)
-	fmt.Println("json result:", string(bytes))
+	parseResult = new(ParseResult)
+	err = parseResult.From(jsonStr)
 	if err != nil {
 		return
 	}
-	if err = json.Unmarshal(bytes, &parseResult); err != nil {
+	return
+}
+
+func (p parser) ParseJsonString(data []byte) (jsonStr string, err error) {
+	result, err := p.ParseRaw(data)
+	if err != nil {
+		return
+	}
+	bytes, err := json.Marshal(result)
+	if err != nil {
 		return
 	}
+	jsonStr = string(bytes)
 	return
 }