diff --git a/services/identity/Cargo.lock b/services/identity/Cargo.lock
--- a/services/identity/Cargo.lock
+++ b/services/identity/Cargo.lock
@@ -149,17 +149,36 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
 
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+dependencies = [
+ "libc",
+ "num-integer",
+ "num-traits",
+ "serde",
+ "winapi",
+]
+
 [[package]]
 name = "clap"
-version = "3.1.14"
+version = "3.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "535434c063ced786eb04aaf529308092c5ab60889e8fe24275d15de07b01fa97"
+checksum = "85a35a599b11c089a7f49105658d089b8f2cf0882993c17daf6de15285c2c35d"
 dependencies = [
  "atty",
  "bitflags",
@@ -206,6 +225,22 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.2"
@@ -215,6 +250,15 @@
  "libc",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "crypto-common"
 version = "0.1.3"
@@ -281,6 +325,27 @@
  "subtle",
 ]
 
+[[package]]
+name = "dirs-next"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b98cf8ebf19c3d1b223e151f99a4f9f0690dca41414773390fc824184ac833e1"
+dependencies = [
+ "cfg-if",
+ "dirs-sys-next",
+]
+
+[[package]]
+name = "dirs-sys-next"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ebda144c4fe02d1f7ea1a7d9641b6fc6b580adcfa024ae48797ecdeb6825b4d"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
 [[package]]
 name = "displaydoc"
 version = "0.2.3"
@@ -319,6 +384,36 @@
 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 = "futures"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f73fe65f54d1e12b726f517d3e2135ca3125a437b6d998caf1962961f7172d9e"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
 [[package]]
 name = "futures-channel"
 version = "0.3.21"
@@ -326,6 +421,7 @@
 checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
@@ -334,6 +430,34 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
 
+[[package]]
+name = "futures-executor"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "futures-sink"
 version = "0.3.21"
@@ -352,10 +476,16 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
 dependencies = [
+ "futures-channel",
  "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
  "futures-task",
+ "memchr",
  "pin-project-lite",
  "pin-utils",
+ "slab",
 ]
 
 [[package]]
@@ -441,6 +571,12 @@
  "libc",
 ]
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "hkdf"
 version = "0.11.0"
@@ -531,6 +667,19 @@
  "tokio-io-timeout",
 ]
 
+[[package]]
+name = "hyper-tls"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
+dependencies = [
+ "bytes",
+ "hyper",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+]
+
 [[package]]
 name = "identity"
 version = "0.1.0"
@@ -543,6 +692,8 @@
  "futures-core",
  "opaque-ke",
  "prost",
+ "rusoto_core",
+ "rusoto_dynamodb",
  "sha2",
  "tokio",
  "tonic",
@@ -608,13 +759,24 @@
 
 [[package]]
 name = "log"
-version = "0.4.16"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6389c490849ff5bc16be905ae24bc913a9c8892e19b2341dbc175e14c341c2b8"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "md-5"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5a279bb9607f9f53c22d496eade00d138d1bdcccd07d74650387cf94942a15"
+dependencies = [
+ "block-buffer 0.9.0",
+ "digest 0.9.0",
+ "opaque-debug",
+]
+
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -650,6 +812,24 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5ce46fe64a9d73be07dcbe690a38ce1b293be448fd8ce1e6c1b8062c9f72c6a"
 
+[[package]]
+name = "native-tls"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd7e2f3618557f980e0b17e8856252eee3c97fa12c54dff0ca290fb6266ca4a9"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "ntapi"
 version = "0.3.7"
@@ -659,6 +839,25 @@
  "winapi",
 ]
 
+[[package]]
+name = "num-integer"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.13.1"
@@ -700,6 +899,51 @@
  "zeroize",
 ]
 
+[[package]]
+name = "openssl"
+version = "0.10.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb81a6430ac911acb25fe5ac8f1d2af1b4ea8a4fdfda0f1ee4292af2e2d8eb0e"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b501e44f11665960c7e7fcf062c7d96a14ade4aa98116c004b2e37b5be7d736c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[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 = "0.9.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5fd19fb3e0a8191c1e34935718976a3e70c112ab9a24af6d7cadccd9d90bc0"
+dependencies = [
+ "autocfg",
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "os_str_bytes"
 version = "6.0.0"
@@ -765,6 +1009,12 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.16"
@@ -914,6 +1164,17 @@
  "bitflags",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
+dependencies = [
+ "getrandom 0.2.6",
+ "redox_syscall",
+ "thiserror",
+]
+
 [[package]]
 name = "regex"
 version = "1.5.5"
@@ -940,6 +1201,89 @@
  "winapi",
 ]
 
+[[package]]
+name = "rusoto_core"
+version = "0.47.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b4f000e8934c1b4f70adde180056812e7ea6b1a247952db8ee98c94cd3116cc"
+dependencies = [
+ "async-trait",
+ "base64",
+ "bytes",
+ "crc32fast",
+ "futures",
+ "http",
+ "hyper",
+ "hyper-tls",
+ "lazy_static",
+ "log",
+ "rusoto_credential",
+ "rusoto_signature",
+ "rustc_version",
+ "serde",
+ "serde_json",
+ "tokio",
+ "xml-rs",
+]
+
+[[package]]
+name = "rusoto_credential"
+version = "0.47.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a46b67db7bb66f5541e44db22b0a02fed59c9603e146db3a9e633272d3bac2f"
+dependencies = [
+ "async-trait",
+ "chrono",
+ "dirs-next",
+ "futures",
+ "hyper",
+ "serde",
+ "serde_json",
+ "shlex",
+ "tokio",
+ "zeroize",
+]
+
+[[package]]
+name = "rusoto_dynamodb"
+version = "0.47.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7935e1f9ca57c4ee92a4d823dcd698eb8c992f7e84ca21976ae72cd2b03016e7"
+dependencies = [
+ "async-trait",
+ "bytes",
+ "futures",
+ "rusoto_core",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "rusoto_signature"
+version = "0.47.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6264e93384b90a747758bcc82079711eacf2e755c3a8b5091687b5349d870bcc"
+dependencies = [
+ "base64",
+ "bytes",
+ "chrono",
+ "digest 0.9.0",
+ "futures",
+ "hex",
+ "hmac",
+ "http",
+ "hyper",
+ "log",
+ "md-5",
+ "percent-encoding",
+ "pin-project-lite",
+ "rusoto_credential",
+ "rustc_version",
+ "serde",
+ "sha2",
+ "tokio",
+]
+
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -949,12 +1293,82 @@
  "semver",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
+
+[[package]]
+name = "schannel"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
+dependencies = [
+ "lazy_static",
+ "winapi",
+]
+
+[[package]]
+name = "security-framework"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dc14f172faf8a0194a3aded622712b0de276821addc574fa54fc0a1167e10dc"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0160a13a177a45bfb43ce71c01580998474f556ad854dcbca936dd2841a5c556"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8cb243bdfdb5936c8dc3c45762a19d12ab4550cdc753bc247637d4ec35a040fd"
 
+[[package]]
+name = "serde"
+version = "1.0.137"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.137"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f26faba0c3959972377d3b2d306ee9f71faee9714294e41bb777f83f88578be"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b7ce2b32a1aed03c558dc61a5cd328f15aff2dbc17daad8fb8af04d2100e15c"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "sha2"
 version = "0.9.9"
@@ -977,6 +1391,21 @@
  "lazy_static",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43b2853a4d09f215c24cc5489c992ce46052d359b5109343cbafbf26bc62f8a3"
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.6"
@@ -1063,6 +1492,26 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
 
+[[package]]
+name = "thiserror"
+version = "1.0.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.4"
@@ -1085,6 +1534,7 @@
  "num_cpus",
  "once_cell",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "winapi",
@@ -1111,6 +1561,16 @@
  "syn",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-stream"
 version = "0.1.8"
@@ -1324,6 +1784,12 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -1454,6 +1920,12 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "xml-rs"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
+
 [[package]]
 name = "zeroize"
 version = "1.3.0"
diff --git a/services/identity/Cargo.toml b/services/identity/Cargo.toml
--- a/services/identity/Cargo.toml
+++ b/services/identity/Cargo.toml
@@ -15,6 +15,8 @@
 digest = "0.9"
 clap = { version = "3.1.12", features = ["derive"] }
 derive_more = "0.99"
+rusoto_core = "0.47.0"
+rusoto_dynamodb = "0.47.0"
 tracing = "0.1"
 tracing-subscriber = "0.3"
 
diff --git a/services/identity/src/database.rs b/services/identity/src/database.rs
new file mode 100644
--- /dev/null
+++ b/services/identity/src/database.rs
@@ -0,0 +1,14 @@
+use rusoto_core::Region;
+use rusoto_dynamodb::DynamoDbClient;
+
+pub struct DatabaseClient {
+  client: DynamoDbClient,
+}
+
+impl DatabaseClient {
+  pub fn new(region: Region) -> Self {
+    DatabaseClient {
+      client: DynamoDbClient::new(region),
+    }
+  }
+}
diff --git a/services/identity/src/main.rs b/services/identity/src/main.rs
--- a/services/identity/src/main.rs
+++ b/services/identity/src/main.rs
@@ -1,8 +1,11 @@
 use clap::{Parser, Subcommand};
+use database::DatabaseClient;
+use rusoto_core::Region;
 use tonic::transport::Server;
 use tracing_subscriber::FmtSubscriber;
 
 mod config;
+mod database;
 mod keygen;
 mod opaque;
 mod service;
@@ -46,7 +49,8 @@
     Commands::Server => {
       let addr = IDENTITY_SERVICE_SOCKET_ADDR.parse()?;
       let config = Config::load()?;
-      let identity_service = MyIdentityService::new(config);
+      let database_client = DatabaseClient::new(Region::UsEast2);
+      let identity_service = MyIdentityService::new(config, database_client);
       Server::builder()
         .add_service(IdentityServiceServer::new(identity_service))
         .serve(addr)
diff --git a/services/identity/src/service.rs b/services/identity/src/service.rs
--- a/services/identity/src/service.rs
+++ b/services/identity/src/service.rs
@@ -3,6 +3,7 @@
 use tonic::{Request, Response, Status};
 
 use crate::config::Config;
+use crate::database::DatabaseClient;
 
 pub use proto::identity_service_server::IdentityServiceServer;
 use proto::{
@@ -14,9 +15,10 @@
   tonic::include_proto!("identity");
 }
 
-#[derive(Debug, derive_more::Constructor)]
+#[derive(derive_more::Constructor)]
 pub struct MyIdentityService {
-  pub config: Config,
+  config: Config,
+  client: DatabaseClient,
 }
 
 #[tonic::async_trait]