diff --git a/.env b/.env
new file mode 100644
index 0000000..88cfb53
--- /dev/null
+++ b/.env
@@ -0,0 +1 @@
+DATABASE_URL="postgres://postgres:password@localhost:5432/newsletter"
diff --git a/Cargo.lock b/Cargo.lock
index 7b6ae5b..bac433c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -233,6 +233,57 @@ dependencies = [
  "alloc-no-stdlib",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5"
+
+[[package]]
+name = "android-tzdata"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e999941b234f3131b00bc13c22d06e8c5ff726d1b6318ac7eb276997bbb4fef0"
+
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "async-trait"
+version = "0.1.77"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c980ee35e870bd1a4d2c8294d4c04d0499e67bca1e4b5cefcc693c2fa00caea9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.48",
+]
+
+[[package]]
+name = "atoi"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f28d99ec8bfea296261ca1af174f24225171fea9664ba9003cbebee704810528"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "atomic-write-file"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "edcdbedc2236483ab103a53415653d6b4442ea6141baf1ffa85df29635e88436"
+dependencies = [
+ "nix",
+ "rand",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -260,6 +311,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64ct"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -271,6 +328,9 @@ name = "bitflags"
 version = "2.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed570934406eb16438a4e976b1b4500774099c13b8cb96eec99f620f05090ddf"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "block-buffer"
@@ -308,6 +368,12 @@ version = "3.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f30e7476521f6f8af1a1c4c0b8cc94f0bee37d91763d0ca2665f299b6cd8aec"
 
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes"
 version = "1.5.0"
@@ -339,12 +405,79 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bc015644b92d5890fab7489e49d21f879d5c990186827d42ec511919404f38b"
+dependencies = [
+ "android-tzdata",
+ "iana-time-zone",
+ "num-traits",
+ "windows-targets 0.52.0",
+]
+
+[[package]]
+name = "config"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7328b20597b53c2454f0b1919720c25c7339051c02b72b7e05409e00b14132be"
+dependencies = [
+ "async-trait",
+ "convert_case 0.6.0",
+ "json5",
+ "lazy_static",
+ "nom",
+ "pathdiff",
+ "ron",
+ "rust-ini",
+ "serde",
+ "serde_json",
+ "toml",
+ "yaml-rust",
+]
+
+[[package]]
+name = "const-oid"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
+
+[[package]]
+name = "const-random"
+version = "0.1.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aaf16c9c2c612020bcfd042e170f6e32de9b9d75adb5277cdbbd2e2c8c8299a"
+dependencies = [
+ "const-random-macro",
+]
+
+[[package]]
+name = "const-random-macro"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9d839f2a20b0aee515dc581a6172f2321f96cab76c1a38a4c584a194955390e"
+dependencies = [
+ "getrandom",
+ "once_cell",
+ "tiny-keccak",
+]
+
 [[package]]
 name = "convert_case"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
+[[package]]
+name = "convert_case"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "cookie"
 version = "0.16.2"
@@ -381,6 +514,21 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crc"
+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86ec7a15cbe22e59248fc7eadb1907dab5ba09372595da4d73dd805ed4417dfe"
+dependencies = [
+ "crc-catalog",
+]
+
+[[package]]
+name = "crc-catalog"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
+
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
@@ -390,6 +538,27 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df0346b5d5e76ac2fe4e327c5fd1118d6be7c51dfb18f9b7922923f287471e35"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "248e3bacc7dc6baa3b21e405ee045c3047101a49145e7e9eca583ab4c2ca5345"
+
+[[package]]
+name = "crunchy"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -400,6 +569,17 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "der"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fffa369a668c8af7dbf8b5e56c9f744fbd399949ed171606040001947de40b1c"
+dependencies = [
+ "const-oid",
+ "pem-rfc7468",
+ "zeroize",
+]
+
 [[package]]
 name = "deranged"
 version = "0.3.11"
@@ -415,7 +595,7 @@ version = "0.99.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
 dependencies = [
- "convert_case",
+ "convert_case 0.4.0",
  "proc-macro2",
  "quote",
  "rustc_version",
@@ -429,7 +609,33 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
+ "const-oid",
  "crypto-common",
+ "subtle",
+]
+
+[[package]]
+name = "dlv-list"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "442039f5147480ba31067cb00ada1adae6892028e40e45fc5de7b7df6dcc1b5f"
+dependencies = [
+ "const-random",
+]
+
+[[package]]
+name = "dotenvy"
+version = "0.15.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
+
+[[package]]
+name = "either"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a"
+dependencies = [
+ "serde",
 ]
 
 [[package]]
@@ -457,12 +663,35 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "etcetera"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "136d1b5283a1ab77bd9257427ffd09d8667ced0570b6f938942bc7568ed5b943"
+dependencies = [
+ "cfg-if",
+ "home",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "event-listener"
+version = "2.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"
+
 [[package]]
 name = "fastrand"
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25cbce373ec4653f1a01a31e8a5e5ec0c622dc27ff9c4e6606eefef5cbbed4a5"
 
+[[package]]
+name = "finl_unicode"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fcfdc7a0362c9f4444381a9e697c79d435fe65b52a37466fc2c1184cee9edc6"
+
 [[package]]
 name = "flate2"
 version = "1.0.28"
@@ -473,6 +702,17 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "flume"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55ac459de2512911e4b674ce33cf20befaba382d05b62b008afc1c8b57cbf181"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "spin 0.9.8",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -510,6 +750,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eac8f7d7865dcb88bd4373ab671c8cf4508703796caa2b1985a9ca867b3fcb78"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
@@ -518,6 +759,34 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dfc6580bb841c5a68e9ef15c77ccc837b40a7504914d52e47b8b0e9bbda25a1d"
 
+[[package]]
+name = "futures-executor"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a576fc72ae164fca6b9db127eaa9a9dda0d61316034f33a0a0d4eda41f02b01d"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-intrusive"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d930c203dd0b6ff06e0201a4a2fe9149b43c684fd4420555b26d21b1a02956f"
+dependencies = [
+ "futures-core",
+ "lock_api",
+ "parking_lot",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a44623e20b9681a318efdd71c299b6b222ed6f231972bfe2f224ebad6311f0c1"
+
 [[package]]
 name = "futures-sink"
 version = "0.3.30"
@@ -537,9 +806,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d6401deb83407ab3da39eba7e33987a73c3df0c82b4bb5813ee871c19c41d48"
 dependencies = [
  "futures-core",
+ "futures-io",
+ "futures-sink",
  "futures-task",
+ "memchr",
  "pin-project-lite",
  "pin-utils",
+ "slab",
 ]
 
 [[package]]
@@ -588,11 +861,39 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43a3c133739dddd0d2990f9a4bdf8eb4b21ef50e4851ca85ab661199821d510e"
+
 [[package]]
 name = "hashbrown"
 version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
+dependencies = [
+ "ahash",
+ "allocator-api2",
+]
+
+[[package]]
+name = "hashlink"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8094feaf31ff591f651a2664fb9cfd92bba7a60ce3197265e9482ebe753c8f7"
+dependencies = [
+ "hashbrown 0.14.3",
+]
+
+[[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+dependencies = [
+ "unicode-segmentation",
+]
 
 [[package]]
 name = "hermit-abi"
@@ -600,6 +901,39 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
+[[package]]
+name = "hkdf"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5f8eb2ad728638ea2c7d47a21db23b7b58a72ed6a38256b8a1849f15fbbdf7"
+dependencies = [
+ "hmac",
+]
+
+[[package]]
+name = "hmac"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
+dependencies = [
+ "digest",
+]
+
+[[package]]
+name = "home"
+version = "0.5.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "http"
 version = "0.2.11"
@@ -671,6 +1005,29 @@ dependencies = [
  "tokio-native-tls",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7ffbb5a1b541ea2561f8c41c087286cc091e21e556a4f09a8f6cbf17b69b141"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "wasm-bindgen",
+ "windows-core",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31827a206f56af32e590ba56d5d2d085f558508192593743f16b2306495269f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "idna"
 version = "0.5.0"
@@ -688,7 +1045,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d530e1a18b1cb4c484e6e34556a0d948706958449fca0cab753d649f2bce3d1f"
 dependencies = [
  "equivalent",
- "hashbrown",
+ "hashbrown 0.14.3",
 ]
 
 [[package]]
@@ -697,6 +1054,15 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
 
+[[package]]
+name = "itertools"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.10"
@@ -721,6 +1087,17 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "json5"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96b0db21af676c1ce64250b5f40f3ce2cf27e4e47cb91ed91eb6fe9350b430c1"
+dependencies = [
+ "pest",
+ "pest_derive",
+ "serde",
+]
+
 [[package]]
 name = "language-tags"
 version = "0.3.2"
@@ -732,6 +1109,9 @@ name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+dependencies = [
+ "spin 0.5.2",
+]
 
 [[package]]
 name = "libc"
@@ -739,6 +1119,29 @@ version = "0.2.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13e3bf6590cbc649f4d1a3eefc9d5d6eb746f5200ffb04e5e142700b8faa56e7"
 
+[[package]]
+name = "libm"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
+
+[[package]]
+name = "libsqlite3-sys"
+version = "0.27.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4e226dcd58b4be396f7bd3c20da8fdee2911400705297ba7d2d7cc2c30f716"
+dependencies = [
+ "cc",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "linked-hash-map"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.13"
@@ -778,6 +1181,16 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "md-5"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "cpufeatures",
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  "tracing",
 ]
 
+[[package]]
+name = "toml"
+version = "0.8.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a9aad4a3066010876e8dcf5a8a06e70a558751117a145c6ce2b82c2e2054290"
+dependencies = [
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3550f4e9685620ac18a50ed434eb3aec30db8ba93b0287467bca5826ea25baf1"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.22.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99e68c159e8f5ba8a28c4eb7b0c0c190d77bb479047ca713270048145a9ad28a"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
+]
+
 [[package]]
 name = "tower-service"
 version = "0.3.2"
@@ -1421,9 +2460,21 @@ checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
 dependencies = [
  "log",
  "pin-project-lite",
+ "tracing-attributes",
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-attributes"
+version = "0.1.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.48",
+]
+
 [[package]]
 name = "tracing-core"
 version = "0.1.32"
@@ -1445,6 +2496,12 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "ucd-trie"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed646292ffc8188ef8ea4d1e0e0150fb15a5c2e12ad9b8fc191ae7a8a7f3c4b9"
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.15"
@@ -1466,6 +2523,24 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
+
+[[package]]
+name = "unicode_categories"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39ec24b3121d976906ece63c9daad25b85969647682eee313cb5779fdd69e14e"
+
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
 [[package]]
 name = "url"
 version = "2.5.0"
@@ -1477,6 +2552,18 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "urlencoding"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
+
+[[package]]
+name = "uuid"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f00cc9702ca12d3c81455259621e676d0f7251cec66a21e98fe2e9a37db93b2a"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -1580,6 +2667,27 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "webpki-roots"
+version = "0.25.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f20c57d8d7db6d3b86154206ae5d8fba62dd39573114de97c2cb0578251f8e1"
+
+[[package]]
+name = "whoami"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22fc3756b8a9133049b26c7f61ab35416c130e8c09b660f5b3958b446f52cc50"
+
+[[package]]
+name = "windows-core"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33ab640c8d7e35bf8ba19b884ba838ceb4fba93a4e8c65a9059d08afcfc683d9"
+dependencies = [
+ "windows-targets 0.52.0",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
@@ -1712,6 +2820,15 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
+[[package]]
+name = "winnow"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d90f4e0f530c4c69f62b80d839e9ef3855edc9cba471a160c4d692deed62b401"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "winreg"
 version = "0.50.0"
@@ -1722,12 +2839,24 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "yaml-rust"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
+dependencies = [
+ "linked-hash-map",
+]
+
 [[package]]
 name = "zero2prod"
 version = "0.1.0"
 dependencies = [
  "actix-web",
+ "config",
  "reqwest",
+ "serde",
+ "sqlx",
  "tokio",
 ]
 
@@ -1751,6 +2880,12 @@ dependencies = [
  "syn 2.0.48",
 ]
 
+[[package]]
+name = "zeroize"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "525b4ec142c6b68a2d10f01f7bbf6755599ca3f81ea53b8431b7dd348f5fdb2d"
+
 [[package]]
 name = "zstd"
 version = "0.13.0"
diff --git a/Cargo.toml b/Cargo.toml
index cc5e76d..6593635 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,5 +15,19 @@ name = "zero2prod"
 
 [dependencies]
 actix-web = "4"
-tokio = { version="1", features = ["macros", "rt-multi-thread"] }
+tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
 reqwest = "0.11"
+serde = { version = "1", features = ["derive"] }
+config = "0.14"
+
+[dependencies.sqlx]
+version = "0.7.3"
+default-features = false
+features = [
+    "runtime-tokio-rustls",
+    "macros",
+    "postgres",
+    "uuid",
+    "chrono",
+    "migrate",
+]
diff --git a/configuration.yaml b/configuration.yaml
new file mode 100644
index 0000000..85a79ac
--- /dev/null
+++ b/configuration.yaml
@@ -0,0 +1,7 @@
+application_port: 8000
+database:
+  host: "127.0.0.1"
+  port: 5432
+  username: "postgres"
+  password: "password"
+  database_name: "newsletter"
diff --git a/migrations/20240214155303_create_subscriptions_table.sql b/migrations/20240214155303_create_subscriptions_table.sql
new file mode 100644
index 0000000..162132d
--- /dev/null
+++ b/migrations/20240214155303_create_subscriptions_table.sql
@@ -0,0 +1,8 @@
+-- Add migration script here
+CREATE TABLE subscriptions(
+  id uuid NOT NULL,
+  PRIMARY KEY (id),
+  email TEXT NOT NULL UNIQUE,
+  name TEXT NOT NULL,
+  subscribed_at timestamptz NOT NULL
+);
diff --git a/scripts/init_db.sh b/scripts/init_db.sh
new file mode 100755
index 0000000..90e7023
--- /dev/null
+++ b/scripts/init_db.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+set -x
+set -eo pipefail
+
+if ! [ -x "$(command -v psql)" ]; then
+  echo >&2 "Error: psql is not installed."
+  exit 1
+fi
+if ! [ -x "$(command -v sqlx)" ]; then
+  echo >&2 "Error: sqlx is not installed."
+  echo >&2 "Use:"
+  echo >&2 "    cargo install --version=0.5.7 sqlx-cli --no-default-features --features postgres"
+  echo >&2 "to install it."
+  exit 1
+fi
+
+# Check if a custom user has been set, otherwise default to 'postgres'
+DB_USER=${POSTGRES_USER:=postgres}
+# Check if a custom password has been set, otherwise default to 'password'
+DB_PASSWORD="${POSTGRES_PASSWORD:=password}"
+# Check if a custom database name has been set, otherwise default to 'newsletter'
+DB_NAME="${POSTGRES_DB:=newsletter}"
+# Check if a custom port has been set, otherwise default to '5432'
+DB_PORT="${POSTGRES_PORT:=5432}"
+
+# Launch postgres using Docker
+if [[ -z "${SKIP_DOCKER}" ]]
+then
+  docker run \
+    -e POSTGRES_USER=${DB_USER} \
+    -e POSTGRES_PASSWORD=${DB_PASSWORD} \
+    -e POSTGRES_DB=${DB_NAME} \
+    -p "${DB_PORT}":5432 \
+    -d postgres \
+    postgres -N 1000
+    # ^ Increased maximum number of connections for testing purposes
+fi
+
+# Keep pinging Postgres until it's ready to accept commands
+export PGPASSWORD="${DB_PASSWORD}"
+until psql -h "localhost" -U "${DB_USER}" -p "${DB_PORT}" -d "postgres" -c '\q'; do
+  >&2 echo "Postgres is still unavailable - sleeping"
+  sleep 1
+done
+
+>&2 echo "Postgres is up and running on port ${DB_PORT}!"
+
+export DATABASE_URL=postgres://${DB_USER}:${DB_PASSWORD}@localhost:${DB_PORT}/${DB_NAME}
+sqlx database create
+sqlx migrate run
+
+>&2 echo "Postgres has been migrated, ready to go!"
diff --git a/src/configuration.rs b/src/configuration.rs
new file mode 100644
index 0000000..ffa3ce0
--- /dev/null
+++ b/src/configuration.rs
@@ -0,0 +1,38 @@
+use config::Config;
+
+#[derive(serde::Deserialize)]
+pub struct Settings {
+    pub database: DatabaseSettings,
+    pub application_port: u16,
+}
+
+#[derive(serde::Deserialize)]
+pub struct DatabaseSettings {
+    pub username: String,
+    pub password: String,
+    pub port: u16,
+    pub host: String,
+    pub database_name: String,
+}
+
+impl DatabaseSettings {
+    pub fn connection_string(&self) -> String {
+        format!(
+            "postgres://{}:{}@{}:{}/{}",
+            self.username, self.password, self.host, self.port, self.database_name
+        )
+    }
+}
+
+pub fn get_configuration() -> Result<Settings, config::ConfigError> {
+    // let mut settings = config::Config::default();
+
+    // settings.merge(config::File::with_name("configuration"))?;
+
+    // settings.try_into()
+    let settings = Config::builder()
+        .add_source(config::File::with_name("configuration"))
+        .build()?;
+
+    Ok(settings.try_deserialize()?)
+}
diff --git a/src/lib.rs b/src/lib.rs
index e002a0a..5d1dce7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,18 +1,3 @@
-use actix_web::{web, App, HttpRequest, HttpResponse, HttpServer, Responder};
-use actix_web::dev::Server;
-use std::net::TcpListener;
-
-async fn health_check() -> HttpResponse {
-	HttpResponse::Ok().into()
-}
-
-pub fn run(listener: TcpListener) -> Result<Server, std::io::Error> {
-	let server = HttpServer::new(|| {
-		App::new()
-			.route("/health_check", web::get().to(health_check))
-	})
-	.listen(listener)?
-	.run();
-
-	Ok(server)
-}
+pub mod configuration;
+pub mod routes;
+pub mod startup;
diff --git a/src/main.rs b/src/main.rs
index 22add2d..203f6bb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,9 +1,15 @@
 use std::net::TcpListener;
-
-use zero2prod::run;
+use sqlx::postgres::PgPoolOptions;
+use zero2prod::configuration::get_configuration;
+use zero2prod::startup::run;
 
 #[tokio::main]
 async fn main() -> std::io::Result<()> {
-	let listener = TcpListener::bind("127.0.0.1:8000").expect("Failed to bind random port");
-	run(listener)?.await
+    let config = get_configuration().expect("Failed to read configuration");
+	let connection = PgPoolOptions::new()
+    .max_connections(10).connect(&config.database.connection_string()).await.expect("Failed to connect to Postgres.");
+
+    let address = format!("127.0.0.1:{}", config.application_port);
+    let listener = TcpListener::bind(address).expect("Failed to bind random port");
+    run(listener, connection)?.await
 }
diff --git a/src/routes/health_check.rs b/src/routes/health_check.rs
new file mode 100644
index 0000000..872f4ea
--- /dev/null
+++ b/src/routes/health_check.rs
@@ -0,0 +1,5 @@
+use actix_web::HttpResponse;
+
+pub async fn health_check() -> HttpResponse {
+    HttpResponse::Ok().into()
+}
diff --git a/src/routes/mod.rs b/src/routes/mod.rs
new file mode 100644
index 0000000..90ffeed
--- /dev/null
+++ b/src/routes/mod.rs
@@ -0,0 +1,5 @@
+mod health_check;
+mod subscriptions;
+
+pub use health_check::*;
+pub use subscriptions::*;
diff --git a/src/routes/subscriptions.rs b/src/routes/subscriptions.rs
new file mode 100644
index 0000000..9650074
--- /dev/null
+++ b/src/routes/subscriptions.rs
@@ -0,0 +1,12 @@
+use actix_web::{web, HttpResponse};
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+pub struct FormData {
+    pub email: String,
+    pub name: String,
+}
+
+pub async fn subscribe(_form: web::Form<FormData>) -> HttpResponse {
+    HttpResponse::Ok().finish()
+}
diff --git a/src/startup.rs b/src/startup.rs
new file mode 100644
index 0000000..7c09d17
--- /dev/null
+++ b/src/startup.rs
@@ -0,0 +1,20 @@
+use actix_web::dev::Server;
+use actix_web::{web, App, HttpServer};
+use sqlx::{Pool, Postgres};
+use std::net::TcpListener;
+
+use crate::routes::{health_check, subscribe};
+
+pub fn run(listener: TcpListener, connection: Pool<Postgres>) -> Result<Server, std::io::Error> {
+	let connection = web::Data::new(connection);
+    let server = HttpServer::new(move || {
+        App::new()
+            .route("/health_check", web::get().to(health_check))
+            .route("/subscriptions", web::post().to(subscribe))
+            .app_data(connection.clone())
+    })
+    .listen(listener)?
+    .run();
+
+    Ok(server)
+}
diff --git a/tests/health_check.rs b/tests/health_check.rs
index 2d5ac09..93cbe73 100644
--- a/tests/health_check.rs
+++ b/tests/health_check.rs
@@ -1,23 +1,97 @@
+use sqlx::{postgres::PgPoolOptions, query, Connection, PgConnection, Pool, Postgres};
 use std::net::TcpListener;
 
+use zero2prod::configuration::get_configuration;
+
+fn spawn_app(connection: Pool<Postgres>) -> String {
+    let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind random port");
+    let port = listener.local_addr().unwrap().port();
+
+    let server = zero2prod::startup::run(listener, connection).expect("Failed to bind address");
+    tokio::spawn(server);
+
+    format!("http://127.0.0.1:{}", port)
+}
+
 #[tokio::test]
 async fn health_check_works() {
-	let address = spawn_app();
-	let health_check_endpoint = format!("{}/health_check", address);
-	let client = reqwest::Client::new();
-	let response = client.get(health_check_endpoint)
-		.send().await.expect("Failed to execute request.");
+	let config = get_configuration().expect("Failed to read configuration");
+	let connection = PgPoolOptions::new()
+    .max_connections(10).connect(&config.database.connection_string()).await.expect("Failed to connect to Postgres.");
 
-	assert!(response.status().is_success());
-	assert_eq!(Some(0), response.content_length());
+    let address = spawn_app(connection);
+    let health_check_endpoint = format!("{}/health_check", address);
+    let client = reqwest::Client::new();
+    let response = client
+        .get(health_check_endpoint)
+        .send()
+        .await
+        .expect("Failed to execute request.");
+
+    assert!(response.status().is_success());
+    assert_eq!(Some(0), response.content_length());
 }
 
-fn spawn_app() -> String {
-	let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind random port");
-	let port = listener.local_addr().unwrap().port();
+#[tokio::test]
+async fn subscribe_returns_a_200_for_valid_form_data() {
+	let config = get_configuration().expect("Failed to read configuration");
+	let connection = PgPoolOptions::new()
+    .max_connections(10).connect(&config.database.connection_string()).await.expect("Failed to connect to Postgres.");
 
-	let server = zero2prod::run(listener).expect("Failed to bind address");
-	tokio::spawn(server);
+    let app_address = spawn_app(connection);
 
-	format!("http://127.0.0.1:{}", port)
+	let mut connection = PgConnection::connect(&config.database.connection_string()).await.expect("Failed to connect to Postgres.");
+
+    let client = reqwest::Client::new();
+
+    let body = "name=le%20guin&email=ursula_le_guin%40gmail.com";
+    let response = client
+        .post(&format!("{}/subscriptions", &app_address))
+        .header("Content-Type", "application/x-www-form-urlencoded")
+        .body(body)
+        .send()
+        .await
+        .expect("Failed to execute request.");
+
+    assert_eq!(200, response.status().as_u16());
+
+	let saved = query!("SELECT email, name FROM subscriptions",)
+		.fetch_one(&mut connection)
+		.await
+		.expect("Failed to fetch saved subscription.");
+
+	assert_eq!(saved.email, "ursula_le_guin@gmail.com");
+	assert_eq!(saved.name, "le guin");
+}
+
+#[tokio::test]
+async fn subscribe_returns_a_400_when_data_is_missing() {
+	let config = get_configuration().expect("Failed to read configuration");
+	let connection = PgPoolOptions::new()
+    .max_connections(10).connect(&config.database.connection_string()).await.expect("Failed to connect to Postgres.");
+
+    let app_address = spawn_app(connection);
+    let client = reqwest::Client::new();
+    let test_cases = vec![
+        ("name=le%20guin", "missing the email"),
+        ("email=ursula_le_guin%40gmail.com", "missing the name"),
+        ("", "missing both name and email"),
+    ];
+
+    for (invalid_body, error_message) in test_cases {
+        let response = client
+            .post(&format!("{}/subscriptions", &app_address))
+            .header("Content-Type", "application/x-www-form-urlencoded")
+            .body(invalid_body)
+            .send()
+            .await
+            .expect("Failed to execute request.");
+
+        assert_eq!(
+            400,
+            response.status().as_u16(),
+            "The API did not fail with 400 Bad Request when the payload was {}.",
+            error_message
+        );
+    }
 }