feat(corp/rih): persist data in storage bucket r/6250

Change-Id: Ide7a21b97e845681584378d348cc36aba951d69f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8730
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>

3 files changed, 533 insertions, 6 deletions

diff --git a/corp/rih/backend/Cargo.lock b/corp/rih/backend/Cargo.lock
index 33ec4d0c0259..895b7372ea18 100644
--- a/corp/rih/backend/Cargo.lock
+++ b/corp/rih/backend/Cargo.lock
@@ -3,6 +3,17 @@
 version = 3
 
 [[package]]
+name = "ahash"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
+dependencies = [
+ "getrandom",
+ "once_cell",
+ "version_check",
+]
+
+[[package]]
 name = "android-tzdata"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -18,18 +29,77 @@ dependencies = [
 ]
 
 [[package]]
+name = "anyhow"
+version = "1.0.71"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
+
+[[package]]
 name = "ascii"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d92bec98840b8f03a5ff5413de5293bfcd8bf96467cf5452609f939ec6f5de16"
 
 [[package]]
+name = "async-trait"
+version = "0.1.68"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9ccdd8f2a161be9bd5c023df56f1b2a0bd1d83872ae53b71a84a12c9bf6e842"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.18",
+]
+
+[[package]]
+name = "attohttpc"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fcf00bc6d5abb29b5f97e3c61a90b6d3caa12f3faf897d4a3e3607c050a35a7"
+dependencies = [
+ "http",
+ "log",
+ "rustls",
+ "serde",
+ "serde_json",
+ "url",
+ "webpki",
+ "webpki-roots",
+]
+
+[[package]]
 name = "autocfg"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
+name = "aws-creds"
+version = "0.34.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3776743bb68d4ad02ba30ba8f64373f1be4e082fe47651767171ce75bb2f6cf5"
+dependencies = [
+ "attohttpc",
+ "dirs",
+ "log",
+ "quick-xml",
+ "rust-ini",
+ "serde",
+ "thiserror",
+ "time",
+ "url",
+]
+
+[[package]]
+name = "aws-region"
+version = "0.25.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "056557a61427d0e5ba29dd931031c8ffed4ee7a550e7cd55692a9d8deb0a9dba"
+dependencies = [
+ "thiserror",
+]
+
+[[package]]
 name = "base64"
 version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -42,6 +112,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
 name = "buf_redux"
 version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -58,6 +137,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
 
 [[package]]
+name = "bytes"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
+
+[[package]]
 name = "cc"
 version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -94,6 +179,62 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
 [[package]]
+name = "cpufeatures"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e4c1eaa2012c47becbbad2ab175484c2a84d1185b566fb2cc5b8707343dfe58"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+ "subtle",
+]
+
+[[package]]
+name = "dirs"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3aa72a6f96ea37bbc5aa912f6788242832f75369bdfdadcb0e38423f100059"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b1d1d91c932ef41c0f2663aa8b0ca0342d444d842c06914aa0a7e352d0bada6"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
+[[package]]
+name = "dlv-list"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0688c2a7f92e427f44895cd63841bff7b29f8d7a1648b9e7e07a4a365b2e1257"
+
+[[package]]
 name = "errno"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -136,6 +277,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
+[[package]]
 name = "form_urlencoded"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -145,6 +292,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "generic-array"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
 name = "getrandom"
 version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -156,6 +313,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "hashbrown"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+dependencies = [
+ "ahash",
+]
+
+[[package]]
 name = "hermit-abi"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -171,6 +337,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
 [[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
+[[package]]
+name = "hmac"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
+dependencies = [
+ "digest",
+]
+
+[[package]]
+name = "http"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd6effc99afb63425aff9b05836f029929e345a6148a14b7ecd5ab67af944482"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
 name = "httparse"
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -269,6 +461,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "518ef76f2f87365916b142844c16d8fefd85039bc5699050210a7778ee1cd1de"
 
 [[package]]
+name = "maybe-async"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f1b8c13cb1f814b634a96b2c725449fe7ed464a7b8781de8688be5ffbd3f305"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "md5"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "490cc448043f947bae3cbee9c203358d62dbee0db12107a74be5c30ccfd09771"
+
+[[package]]
 name = "memchr"
 version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -343,6 +552,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
+name = "ordered-multimap"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccd746e37177e1711c20dd619a1620f34f5c8b569c53590a72dedd5344d8924a"
+dependencies = [
+ "dlv-list",
+ "hashbrown",
+]
+
+[[package]]
 name = "percent-encoding"
 version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -370,6 +589,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
+name = "quick-xml"
+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f50b1c63b38611e7d4d7f68b82d3ad0cc71a2ad2e7f61fc10f1328d917c93cd"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
+[[package]]
 name = "quote"
 version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -427,10 +656,41 @@ dependencies = [
 ]
 
 [[package]]
+name = "redox_users"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
+dependencies = [
+ "getrandom",
+ "redox_syscall 0.2.16",
+ "thiserror",
+]
+
+[[package]]
 name = "rih-backend"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "rouille",
+ "rust-s3",
+ "serde",
+ "serde_json",
+ "uuid",
+]
+
+[[package]]
+name = "ring"
+version = "0.16.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3053cf52e236a3ed746dfc745aa9cacf1b791d846bdaf412f60a8d7d6e17c8fc"
+dependencies = [
+ "cc",
+ "libc",
+ "once_cell",
+ "spin",
+ "untrusted",
+ "web-sys",
+ "winapi",
 ]
 
 [[package]]
@@ -456,6 +716,45 @@ dependencies = [
 ]
 
 [[package]]
+name = "rust-ini"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6d5f2436026b4f6e79dc829837d467cc7e9a55ee40e750d716713540715a2df"
+dependencies = [
+ "cfg-if",
+ "ordered-multimap",
+]
+
+[[package]]
+name = "rust-s3"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b2ac5ff6acfbe74226fa701b5ef793aaa054055c13ebb7060ad36942956e027"
+dependencies = [
+ "async-trait",
+ "attohttpc",
+ "aws-creds",
+ "aws-region",
+ "base64",
+ "bytes",
+ "cfg-if",
+ "hex",
+ "hmac",
+ "http",
+ "log",
+ "maybe-async",
+ "md5",
+ "percent-encoding",
+ "quick-xml",
+ "serde",
+ "serde_derive",
+ "sha2",
+ "thiserror",
+ "time",
+ "url",
+]
+
+[[package]]
 name = "rustix"
 version = "0.37.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -470,6 +769,18 @@ dependencies = [
 ]
 
 [[package]]
+name = "rustls"
+version = "0.20.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fff78fc74d175294f4e83b28343315ffcfb114b156f0185e9741cb5570f50e2f"
+dependencies = [
+ "log",
+ "ring",
+ "sct",
+ "webpki",
+]
+
+[[package]]
 name = "ryu"
 version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -482,10 +793,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef703b7cb59335eae2eb93ceb664c0eb7ea6bf567079d843e09420219668e072"
 
 [[package]]
+name = "sct"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d53dcdb7c9f8158937a7981b48accfd39a43af418591a5d008c7b22b5e1b7ca4"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
+[[package]]
 name = "serde"
 version = "1.0.163"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2113ab51b87a539ae008b5c6c02dc020ffa39afd2d83cffcb3f4eb2722cebec2"
+dependencies = [
+ "serde_derive",
+]
 
 [[package]]
 name = "serde_derive"
@@ -495,7 +819,7 @@ checksum = "8c805777e3930c8883389c602315a24224bcc738b63905ef87cd1420353ea93e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.18",
 ]
 
 [[package]]
@@ -516,6 +840,40 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ae1a47186c03a32177042e55dbc5fd5aee900b8e0069a8d70fba96a9375cd012"
 
 [[package]]
+name = "sha2"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
+[[package]]
+name = "spin"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
+
+[[package]]
+name = "subtle"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
+
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
 name = "syn"
 version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -540,6 +898,26 @@ dependencies = [
 ]
 
 [[package]]
+name = "thiserror"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.18",
+]
+
+[[package]]
 name = "threadpool"
 version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -554,10 +932,12 @@ version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f3403384eaacbca9923fa06940178ac13e4edb725486d70e8e15881d0c836cc"
 dependencies = [
+ "itoa",
  "libc",
  "num_threads",
  "serde",
  "time-core",
+ "time-macros",
 ]
 
 [[package]]
@@ -567,6 +947,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
 
 [[package]]
+name = "time-macros"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "372950940a5f07bf38dbe211d7283c9e6d7327df53794992d293e534c733d09b"
+dependencies = [
+ "time-core",
+]
+
+[[package]]
 name = "tiny_http"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -603,6 +992,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "typenum"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
+
+[[package]]
 name = "unicase"
 version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -633,6 +1028,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "untrusted"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
+
+[[package]]
 name = "url"
 version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -644,6 +1045,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "uuid"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "345444e32442451b267fc254ae85a209c64be56d2890e601a0c37ff0c3c5ecd2"
+dependencies = [
+ "getrandom",
+ "serde",
+]
+
+[[package]]
 name = "version_check"
 version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -676,7 +1087,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.18",
  "wasm-bindgen-shared",
 ]
 
@@ -698,7 +1109,7 @@ checksum = "e128beba882dd1eb6200e1dc92ae6c5dbaa4311aa7bb211ca035779e5efc39f8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.18",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -710,6 +1121,35 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed9d5b4305409d1fc9482fee2d7f9bcbf24b3972bf59817ef757e23982242a93"
 
 [[package]]
+name = "web-sys"
+version = "0.3.63"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3bdd9ef4e984da1187bf8110c5cf5b845fbc87a23602cdf912386a76fcd3a7c2"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "webpki"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
+[[package]]
+name = "webpki-roots"
+version = "0.22.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6c71e40d7d2c34a5106301fb632274ca37242cd0c9d3e64dbece371a40a2d87"
+dependencies = [
+ "webpki",
+]
+
+[[package]]
 name = "winapi"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/corp/rih/backend/Cargo.toml b/corp/rih/backend/Cargo.toml
index d9375d592ddd..f6d2b97b70be 100644
--- a/corp/rih/backend/Cargo.toml
+++ b/corp/rih/backend/Cargo.toml
@@ -3,6 +3,17 @@ name = "rih-backend"
 version = "0.1.0"
 edition = "2021"
 
+[dependencies]
+anyhow = "1.0"
+serde = { version = "1.0", features = [ "derive" ] }
+serde_json = "1.0"
+uuid = { version = "1.3.3", features = ["v4", "serde"] }
+
 [dependencies.rouille]
-version = "3.6.2"
+version = "3.6"
+default-features = false
+
+[dependencies.rust-s3]
+version = "0.33"
 default_features = false
+features = [ "sync-rustls-tls" ]
diff --git a/corp/rih/backend/src/main.rs b/corp/rih/backend/src/main.rs
index 719d3c19af67..28e4e8dfde00 100644
--- a/corp/rih/backend/src/main.rs
+++ b/corp/rih/backend/src/main.rs
@@ -1,8 +1,84 @@
+use anyhow::{bail, Context, Result};
 use rouille::{Request, Response};
+use serde::{Deserialize, Serialize};
+use std::collections::BTreeSet;
 use std::env;
+use std::net::SocketAddr;
+use std::time::{SystemTime, UNIX_EPOCH};
+use uuid::Uuid;
 
-fn main() {
+/// Represents a single record as filled in by a user. This is the
+/// primary data structure we want to populate and persist somewhere.
+#[derive(Debug, Deserialize, Serialize)]
+struct Record {
+    // Record-specific metadata
+    uuid: Uuid,
+
+    // Personal information
+    name: String,
+    email: String,
+    citizenship: String, // TODO
+    personal_details: String,
+
+    // Job information
+    position: String,
+    technologies: BTreeSet<String>,
+    job_details: String,
+    work_background: String,
+}
+
+impl Record {
+    fn validate(&self) -> bool {
+        true
+    }
+}
+
+fn persist_record(ip: &SocketAddr, record: &Record) -> Result<()> {
+    let bucket_name = "rih-backend-data";
+    let credentials = s3::creds::Credentials::from_env()?;
+    let yandex_region: s3::Region = s3::Region::Custom {
+        region: "ru-central1".to_string(),
+        endpoint: "storage.yandexcloud.net".to_string(),
+    };
+
+    let bucket = s3::Bucket::new(bucket_name, yandex_region, credentials)?;
+
+    let path_uuid = Uuid::new_v4();
+    let epoch = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs();
+    let path = format!("/records/{}-{}.json", epoch, path_uuid);
+
+    let data = serde_json::json!({
+        "ip": ip.to_string(),
+        "record": record,
+    });
+
+    let _response = bucket.put_object(path, data.to_string().as_bytes());
+    Ok(())
+}
+
+fn handle_submit(req: &Request) -> Result<Response> {
+    let record: Record = rouille::input::json::json_input(req)?;
+
+    if !record.validate() {
+        bail!("invalid record: {:?}", record);
+    }
+
+    persist_record(req.remote_addr(), &record)?;
+
+    Ok(Response::text("success"))
+}
+
+fn main() -> Result<()> {
     let port = env::var("PORT").unwrap_or_else(|_| /* rihb = */ "7442".to_string());
     let listen = format!("0.0.0.0:{port}");
-    rouille::start_server(&listen, move |_request| Response::text("hello world"));
+    rouille::start_server(&listen, move |request| {
+        if request.url() == "/submit" {
+            match handle_submit(request) {
+                Ok(response) => response,
+                Err(_err) => Response::empty_400(), // TODO
+            }
+        } else {
+            Response::empty_404()
+        }
+    });
 }