diff --git a/.idea/chuanyue-service.iml b/.idea/chuanyue-service.iml
index 654f6ab..6ec15fc 100644
--- a/.idea/chuanyue-service.iml
+++ b/.idea/chuanyue-service.iml
@@ -7,6 +7,7 @@
       <sourceFolder url="file://$MODULE_DIR$/library/src" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/service/src" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/auth/src" isTestSource="false" />
       <excludeFolder url="file://$MODULE_DIR$/target" />
     </content>
     <orderEntry type="inheritedJdk" />
diff --git a/Cargo.lock b/Cargo.lock
index 967f3f5..a683edf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -77,6 +77,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f538837af36e6f6a9be0faa67f9a314f8119e4e4b5867c6ab40ed60360142519"
+
 [[package]]
 name = "api"
 version = "0.1.0"
@@ -161,6 +167,13 @@ dependencies = [
  "rand",
 ]
 
+[[package]]
+name = "auth"
+version = "0.1.0"
+dependencies = [
+ "rs-firebase-admin-sdk",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -177,10 +190,10 @@ dependencies = [
  "axum-core",
  "bytes",
  "futures-util",
- "http",
- "http-body",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "http-body-util",
- "hyper",
+ "hyper 1.2.0",
  "hyper-util",
  "itoa",
  "matchit",
@@ -210,8 +223,8 @@ dependencies = [
  "async-trait",
  "bytes",
  "futures-util",
- "http",
- "http-body",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "http-body-util",
  "mime",
  "pin-project-lite",
@@ -232,8 +245,8 @@ dependencies = [
  "axum-core",
  "bytes",
  "futures-util",
- "http",
- "http-body",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "http-body-util",
  "mime",
  "pin-project-lite",
@@ -265,6 +278,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
+
 [[package]]
 name = "base64ct"
 version = "1.6.0"
@@ -439,6 +458,16 @@ version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.6"
@@ -615,6 +644,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b45de904aa0b010bce2ab45264d0631681847fa7b6f2eaa7dab7619943bc4f59"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.1"
@@ -631,6 +669,16 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "error-stack"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27a72baa257b5e0e2de241967bc5ee8f855d6072351042688621081d66b2a76b"
+dependencies = [
+ "anyhow",
+ "rustc_version",
+]
+
 [[package]]
 name = "etcetera"
 version = "0.8.0"
@@ -709,6 +757,21 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -823,6 +886,31 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "gcp_auth"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e155fdc0640589cc660d00e7ed7aa608479e20187b9ea352a77dd4443dd2d856"
+dependencies = [
+ "async-trait",
+ "base64 0.22.0",
+ "chrono",
+ "home",
+ "hyper 0.14.28",
+ "hyper-rustls",
+ "ring",
+ "rustls 0.22.4",
+ "rustls-pemfile 2.1.2",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "tokio",
+ "tracing",
+ "tracing-futures",
+ "url",
+ "which",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -852,6 +940,25 @@ version = "0.28.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"
 
+[[package]]
+name = "h2"
+version = "0.3.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81fe527a889e1532da5c525686d96d4c2e74cdd345badf8dfef9f6b39dd5f5e8"
+dependencies = [
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "http 0.2.12",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.2"
@@ -863,7 +970,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "futures-util",
- "http",
+ "http 1.1.0",
  "indexmap",
  "slab",
  "tokio",
@@ -899,6 +1006,30 @@ dependencies = [
  "hashbrown 0.14.3",
 ]
 
+[[package]]
+name = "headers"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "322106e6bd0cba2d5ead589ddb8150a13d7c4217cf80d7c4f682ca994ccc6aa9"
+dependencies = [
+ "base64 0.21.7",
+ "bytes",
+ "headers-core",
+ "http 1.1.0",
+ "httpdate",
+ "mime",
+ "sha1",
+]
+
+[[package]]
+name = "headers-core"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54b4a22553d4242c49fddb9ba998a99962b5cc6f22cb5a3482bec22522403ce4"
+dependencies = [
+ "http 1.1.0",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.1"
@@ -947,6 +1078,17 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "http"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "601cbb57e577e2f5ef5be8e7b83f0f63994f25aa94d673e54a92d5c516d101f1"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
 [[package]]
 name = "http"
 version = "1.1.0"
@@ -958,6 +1100,17 @@ dependencies = [
  "itoa",
 ]
 
+[[package]]
+name = "http-body"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ceab25649e9960c0311ea418d17bee82c0dcec1bd053b5f9a66e265a693bed2"
+dependencies = [
+ "bytes",
+ "http 0.2.12",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "http-body"
 version = "1.0.0"
@@ -965,7 +1118,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1cac85db508abc24a2e48553ba12a996e87244a0395ce011e62b37158745d643"
 dependencies = [
  "bytes",
- "http",
+ "http 1.1.0",
 ]
 
 [[package]]
@@ -976,8 +1129,8 @@ checksum = "41cb79eb393015dadd30fc252023adb0b2400a0caee0fa2a077e6e21a551e840"
 dependencies = [
  "bytes",
  "futures-util",
- "http",
- "http-body",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "pin-project-lite",
 ]
 
@@ -993,6 +1146,30 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
+[[package]]
+name = "hyper"
+version = "0.14.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf96e135eb83a2a8ddf766e426a841d8ddd7449d5f00d34ea02b41d2f19eef80"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "h2 0.3.26",
+ "http 0.2.12",
+ "http-body 0.4.6",
+ "httparse",
+ "httpdate",
+ "itoa",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+ "tower-service",
+ "tracing",
+ "want",
+]
+
 [[package]]
 name = "hyper"
 version = "1.2.0"
@@ -1002,15 +1179,48 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
- "h2",
- "http",
- "http-body",
+ "h2 0.4.2",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "httparse",
  "httpdate",
  "itoa",
  "pin-project-lite",
  "smallvec",
  "tokio",
+ "want",
+]
+
+[[package]]
+name = "hyper-rustls"
+version = "0.25.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "399c78f9338483cb7e630c8474b07268983c6bd5acee012e4211f9f7bb21b070"
+dependencies = [
+ "futures-util",
+ "http 0.2.12",
+ "hyper 0.14.28",
+ "rustls 0.22.4",
+ "rustls-native-certs",
+ "rustls-pki-types",
+ "tokio",
+ "tokio-rustls",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
+dependencies = [
+ "bytes",
+ "http-body-util",
+ "hyper 1.2.0",
+ "hyper-util",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
 ]
 
 [[package]]
@@ -1020,13 +1230,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca38ef113da30126bbff9cd1705f9273e15d45498615d138b0c20279ac7a76aa"
 dependencies = [
  "bytes",
+ "futures-channel",
  "futures-util",
- "http",
- "http-body",
- "hyper",
+ "http 1.1.0",
+ "http-body 1.0.0",
+ "hyper 1.2.0",
  "pin-project-lite",
  "socket2",
  "tokio",
+ "tower",
+ "tower-service",
+ "tracing",
 ]
 
 [[package]]
@@ -1089,6 +1303,12 @@ dependencies = [
  "syn 2.0.52",
 ]
 
+[[package]]
+name = "ipnet"
+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
+
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -1142,8 +1362,8 @@ dependencies = [
  "axum-extra",
  "chrono",
  "futures-util",
- "http",
- "http-body",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "http-body-util",
  "moka",
  "once_cell",
@@ -1270,6 +1490,24 @@ dependencies = [
  "uuid",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07226173c32f2926027b63cce4bcd8076c3552846cbe7925f3aaffeac0a3b92e"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "nix"
 version = "0.28.0"
@@ -1391,6 +1629,50 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "openssl"
+version = "0.10.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95a0481286a310808298130d22dd1fef0fa571e05a8f44ec801801e84b216b1f"
+dependencies = [
+ "bitflags 2.4.2",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.52",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.102"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c597637d56fbc83893a35eb0dd04b2b8e7a50c91e64e9493e398b5df4fb45fa2"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "ordered-float"
 version = "3.9.2"
@@ -1729,6 +2011,46 @@ dependencies = [
  "bytecheck",
 ]
 
+[[package]]
+name = "reqwest"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "566cafdd92868e0939d3fb961bd0dc25fcfaaed179291093b3d43e6b3150ea10"
+dependencies = [
+ "base64 0.22.0",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "http 1.1.0",
+ "http-body 1.0.0",
+ "http-body-util",
+ "hyper 1.2.0",
+ "hyper-tls",
+ "hyper-util",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls-pemfile 2.1.2",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
+]
+
 [[package]]
 name = "ring"
 version = "0.17.8"
@@ -1773,6 +2095,28 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "rs-firebase-admin-sdk"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60d5ef0fca7bc47094901ec81745f2ae7b2147ec311f65f75b66e77eb8d78311"
+dependencies = [
+ "base64 0.22.0",
+ "bytes",
+ "error-stack",
+ "gcp_auth",
+ "headers",
+ "http 1.1.0",
+ "openssl",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "time",
+ "tokio",
+ "urlencoding",
+]
+
 [[package]]
 name = "rsa"
 version = "0.9.6"
@@ -1844,19 +2188,62 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f9d5a6813c0759e4609cd494e8e725babae6a2ca7b62a5536a13daaec6fcb7ba"
 dependencies = [
  "ring",
- "rustls-webpki",
+ "rustls-webpki 0.101.7",
  "sct",
 ]
 
+[[package]]
+name = "rustls"
+version = "0.22.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf4ef73721ac7bcd79b2b315da7779d8fc09718c6b3d2d1b2d94850eb8c18432"
+dependencies = [
+ "log",
+ "ring",
+ "rustls-pki-types",
+ "rustls-webpki 0.102.2",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-native-certs"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f1fb85efa936c42c6d5fc28d2629bb51e4b2f4b8a5211e297d599cc5a093792"
+dependencies = [
+ "openssl-probe",
+ "rustls-pemfile 2.1.2",
+ "rustls-pki-types",
+ "schannel",
+ "security-framework",
+]
+
 [[package]]
 name = "rustls-pemfile"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c74cae0a4cf6ccbbf5f359f08efdf8ee7e1dc532573bf0db71968cb56b1448c"
 dependencies = [
- "base64",
+ "base64 0.21.7",
 ]
 
+[[package]]
+name = "rustls-pemfile"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29993a25686778eb88d4189742cd713c9bce943bc54251a33509dc63cbacf73d"
+dependencies = [
+ "base64 0.22.0",
+ "rustls-pki-types",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecd36cc4259e3e4514335c4a138c6b43171a8d61d8f5c9348f9fc7529416f247"
+
 [[package]]
 name = "rustls-webpki"
 version = "0.101.7"
@@ -1867,6 +2254,17 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "rustls-webpki"
+version = "0.102.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "faaa0a62740bedb9b2ef5afa303da42764c012f743917351dc9a237ea1663610"
+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.14"
@@ -1879,6 +2277,15 @@ version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e86697c916019a8588c99b5fac3cead74ec0b4b819707a682fd4d23fa0ce1ba1"
 
+[[package]]
+name = "schannel"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbc91545643bcf3a0bbb6569265615222618bdf33ce4ffbbd13c4bbd4c093534"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -1989,6 +2396,29 @@ version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
 
+[[package]]
+name = "security-framework"
+version = "2.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "770452e37cad93e0a50d5abc3990d2bc351c36d0328f86cefec2f2fb206eaef6"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41f3cc463c0ef97e11c3461a9d3787412d30e8e7eb907c79180c4a57bf7c04ef"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.22"
@@ -2229,8 +2659,8 @@ dependencies = [
  "paste",
  "percent-encoding",
  "rust_decimal",
- "rustls",
- "rustls-pemfile",
+ "rustls 0.21.10",
+ "rustls-pemfile 1.0.4",
  "serde",
  "serde_json",
  "sha2",
@@ -2293,7 +2723,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e37195395df71fd068f6e2082247891bc11e3289624bbc776a0cdfa1ca7f1ea4"
 dependencies = [
  "atoi",
- "base64",
+ "base64 0.21.7",
  "bigdecimal",
  "bitflags 2.4.2",
  "byteorder",
@@ -2340,7 +2770,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6ac0ac3b7ccd10cc96c7ab29791a7dd236bd94021f31eec7ba3d46a74aa1c24"
 dependencies = [
  "atoi",
- "base64",
+ "base64 0.21.7",
  "bigdecimal",
  "bitflags 2.4.2",
  "byteorder",
@@ -2609,6 +3039,27 @@ dependencies = [
  "syn 2.0.52",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-rustls"
+version = "0.25.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "775e0c0f0adb3a2f22a00c4745d728b479985fc15ee7ca6a2608388c5569860f"
+dependencies = [
+ "rustls 0.22.4",
+ "rustls-pki-types",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-stream"
 version = "0.1.14"
@@ -2703,8 +3154,8 @@ checksum = "1e9cd434a998747dd2c4276bc96ee2e0c7a2eadf3cae88e52be55a05fa9053f5"
 dependencies = [
  "bitflags 2.4.2",
  "bytes",
- "http",
- "http-body",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "http-body-util",
  "pin-project-lite",
  "tower-layer",
@@ -2769,6 +3220,16 @@ dependencies = [
  "valuable",
 ]
 
+[[package]]
+name = "tracing-futures"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97d095ae15e245a057c8e8451bab9b3ee1e1f68e9ba2b4fbc18d0ac5237835f2"
+dependencies = [
+ "pin-project",
+ "tracing",
+]
+
 [[package]]
 name = "tracing-log"
 version = "0.2.0"
@@ -2813,6 +3274,12 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "859eb650cfee7434994602c3a68b25d77ad9e68c8a6cd491616ef86661382eb3"
 
+[[package]]
+name = "try-lock"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
@@ -2944,6 +3411,15 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
+[[package]]
+name = "want"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
@@ -2981,6 +3457,18 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76bc14366121efc8dbb487ab05bcc9d346b3b5ec0eaa76e46594cabbe51762c0"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.92"
@@ -3036,6 +3524,18 @@ version = "0.25.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f20c57d8d7db6d3b86154206ae5d8fba62dd39573114de97c2cb0578251f8e1"
 
+[[package]]
+name = "which"
+version = "6.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8211e4f58a2b2805adfbefbc07bab82958fc91e3836339b1ab7ae32465dce0d7"
+dependencies = [
+ "either",
+ "home",
+ "rustix",
+ "winsafe",
+]
+
 [[package]]
 name = "whoami"
 version = "1.5.0"
@@ -3227,6 +3727,22 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "winreg"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a277a57398d4bfa075df44f501a17cfdf8542d224f0d36095a2adc7aee4ef0a5"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "winsafe"
+version = "0.0.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d135d17ab770252ad95e9a872d365cf3090e3be864a34ab46f48555993efc904"
+
 [[package]]
 name = "wyz"
 version = "0.5.1"
diff --git a/Cargo.toml b/Cargo.toml
index b22f3c4..e977d39 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [workspace]
-members = [".", "api", "domain","library", "service"]
+members = [".", "api", "auth", "domain","library", "service"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/auth/Cargo.toml b/auth/Cargo.toml
new file mode 100644
index 0000000..7c29029
--- /dev/null
+++ b/auth/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "auth"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rs-firebase-admin-sdk = "2.0.0"
diff --git a/auth/src/firebase_admin.rs b/auth/src/firebase_admin.rs
new file mode 100644
index 0000000..b6ecec4
--- /dev/null
+++ b/auth/src/firebase_admin.rs
@@ -0,0 +1,27 @@
+use rs_firebase_admin_sdk::{
+    auth::{FirebaseAuthService, UserIdentifiers},
+    client::ApiHttpClient,
+    App, AuthenticationManager,
+};
+
+async fn test() {
+    // Load your GCP SA from env, see https://crates.io/crates/gcp_auth for more details
+    let gcp_service_account = AuthenticationManager::new().await.unwrap();
+    // Create live (not emulated) context for Firebase app
+    let live_app = App::live(gcp_service_account.into()).await.unwrap();
+
+    // Create Firebase authentication admin client
+    let auth_admin = live_app.auth();
+
+    let user = auth_admin.get_user(
+        // Build a filter for finding the user
+        UserIdentifiers::builder()
+        .with_email("me@email.com".into())
+        .build()
+    )
+        .await
+        .expect("Error while fetching user")
+        .expect("User does not exist");
+
+    println!("User id: {}", user.uid);
+}
\ No newline at end of file
diff --git a/auth/src/lib.rs b/auth/src/lib.rs
new file mode 100644
index 0000000..a36c594
--- /dev/null
+++ b/auth/src/lib.rs
@@ -0,0 +1 @@
+pub mod firebase_admin;
\ No newline at end of file