Work in progress

Cargo.lock

@@ -44,12 +44,33 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "base64"
+version = "0.21.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "bitflags"
 version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
+[[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 = "bluer"
 version = "0.17.1"
@@ -79,6 +100,23 @@ dependencies = [
  "uuid",
 ]
 
+[[package]]
+name = "bluetooth-hci"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba8c2b20e8648a369c0c984201cdc1673917420f1f5e28cce90635048eeb1032"
+dependencies = [
+ "bitflags 1.3.2",
+ "byteorder",
+ "nb 0.1.3",
+]
+
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes"
 version = "1.6.0"
@@ -97,6 +135,25 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "cpufeatures"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
+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 = "custom_debug"
 version = "0.6.1"
@@ -122,9 +179,9 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.20.5"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc5d6b04b3fd0ba9926f945895de7d806260a2d7431ba82e7edaecb043c4c6b8"
+checksum = "54e36fcd13ed84ffdfda6f5be89b31287cbb80c439841fe69e04841435464391"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -132,9 +189,9 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.20.5"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04e48a959bcd5c761246f5d090ebc2fbf7b9cd527a492b07a67510c108f1e7e3"
+checksum = "9c2cf1c23a687a1feeb728783b993c4e1ad83d99f351801977dd809b48d0a70f"
 dependencies = [
  "fnv",
  "ident_case",
@@ -146,9 +203,9 @@ dependencies = [
 
 [[package]]
 name = "darling_macro"
-version = "0.20.5"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d1545d67a2149e1d93b7e5c7752dce5a7426eb5d1357ddcfd89336b94444f77"
+checksum = "a668eda54683121533a393014d8692171709ff57a7d61f187b6e782719f8933f"
 dependencies = [
  "darling_core",
  "quote",
@@ -188,6 +245,16 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
 [[package]]
 name = "displaydoc"
 version = "0.2.4"
@@ -201,9 +268,24 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.10.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a"
+checksum = "a47c1c47d2f5964e29c61246e81db715514cd532db6b5116a25ea3c03d6780a2"
+
+[[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"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
 [[package]]
 name = "fnv"
@@ -211,6 +293,15 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "form_urlencoded"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13624c2627564efccf4934284bdd98cbaa14e79b0b5a141218e507b3a823456"
+dependencies = [
+ "percent-encoding",
+]
+
 [[package]]
 name = "futures"
 version = "0.3.30"
@@ -300,6 +391,16 @@ dependencies = [
  "slab",
 ]
 
+[[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 = "0.2.14"
@@ -317,6 +418,55 @@ 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",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
+
+[[package]]
+name = "headers"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06683b93020a07e3dbcf5f8c0f6d40080d725bea7936fc01ad345c01b97dc270"
+dependencies = [
+ "base64",
+ "bytes",
+ "headers-core",
+ "http",
+ "httpdate",
+ "mime",
+ "sha1",
+]
+
+[[package]]
+name = "headers-core"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7f66481bfee273957b1f20485a4ff3362987f85b2c236580d81b4eb7a326429"
+dependencies = [
+ "http",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.1"
@@ -329,12 +479,80 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[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-body"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ceab25649e9960c0311ea418d17bee82c0dcec1bd053b5f9a66e265a693bed2"
+dependencies = [
+ "bytes",
+ "http",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
+
+[[package]]
+name = "httpdate"
+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",
+ "http",
+ "http-body",
+ "httparse",
+ "httpdate",
+ "itoa",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+ "tower-service",
+ "tracing",
+ "want",
+]
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
+[[package]]
+name = "indexmap"
+version = "2.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+dependencies = [
+ "equivalent",
+ "hashbrown",
+]
+
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -389,6 +607,22 @@ version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
+[[package]]
+name = "mime_guess"
+version = "2.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4192263c238a5f0d0c6bfd21f336a313a4ce1c450542449ca191bb657b4642ef"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.2"
@@ -409,13 +643,46 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "multer"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "01acbdc23469fd8fe07ab135923371d5f5a422fbf9c522158677c8eb15bc51c2"
+dependencies = [
+ "bytes",
+ "encoding_rs",
+ "futures-util",
+ "http",
+ "httparse",
+ "log",
+ "memchr",
+ "mime",
+ "spin",
+ "version_check",
+]
+
+[[package]]
+name = "nb"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "801d31da0513b6ec5214e9bf433a77966320625a37860f910be265be6e18d06f"
+dependencies = [
+ "nb 1.1.0",
+]
+
+[[package]]
+name = "nb"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
+
 [[package]]
 name = "nix"
 version = "0.27.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2eb04e9c688eff1c89d72b407f168cf79bb9e867a9d3323ed6c01519eb9cc053"
 dependencies = [
- "bitflags",
+ "bitflags 2.5.0",
  "cfg-if",
  "libc",
 ]
@@ -450,19 +717,31 @@ dependencies = [
 ]
 
 [[package]]
-name = "pin-project"
+name = "once_cell"
-version = "1.1.4"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0302c4a0442c456bd56f841aee5c3bfd17967563f6fadc9ceb9f9c23cf3807e0"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
+[[package]]
+name = "pin-project"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bf43b791c5b9e34c3d182969b4abb522f9343702850a2e57f460d00d09b4b3"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.1.4"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "266c042b60c9c76b8d53061e52b2e0d1116abc57cefc8c5cd671619a56ac3690"
+checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -523,14 +802,22 @@ version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e86697c916019a8588c99b5fac3cead74ec0b4b819707a682fd4d23fa0ce1ba1"
 
+[[package]]
+name = "scoped-tls"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
+
 [[package]]
 name = "sensirion-exporter"
 version = "0.1.0"
 dependencies = [
  "anyhow",
  "bluer",
+ "bluetooth-hci",
  "futures",
  "tokio",
+ "warp",
 ]
 
 [[package]]
@@ -564,6 +851,29 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "sha1"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -583,6 +893,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -671,6 +987,67 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5419f34732d9eb6ee4c3578b7989078579b7f039cbbb9ca2c4da015749371e15"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+ "tracing",
+]
+
+[[package]]
+name = "tower-service"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+
+[[package]]
+name = "tracing"
+version = "0.1.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
+dependencies = [
+ "log",
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
+dependencies = [
+ "once_cell",
+]
+
+[[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"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
+
+[[package]]
+name = "unicase"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d2d4dafb69621809a81864c9c1b864479e1235c0dd4e199924b9742439ed89"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.12"
@@ -686,6 +1063,49 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "version_check"
+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 = "warp"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4378d202ff965b011c64817db11d5829506d3404edeadb61f190d111da3f231c"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "headers",
+ "http",
+ "hyper",
+ "log",
+ "mime",
+ "mime_guess",
+ "multer",
+ "percent-encoding",
+ "pin-project",
+ "scoped-tls",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "tokio",
+ "tokio-util",
+ "tower-service",
+ "tracing",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"

Cargo.toml

@@ -8,5 +8,7 @@ edition = "2021"
 [dependencies]
 anyhow = "1.0.82"
 bluer = { version = "0.17.1", features = ["bluetoothd"] }
+bluetooth-hci = { version = "0.1.0", features = ["version-4-2", "version-5-0"] }
 futures = "0.3.30"
-tokio = { version = "1.37.0", features = ["rt"] }
+tokio = { version = "1.37.0", features = ["rt", "macros"] }
+warp = { version = "0.3.7", default-features = false, features = ["multer", "multipart"] }

src/main.rs

@@ -1,23 +1,111 @@
-use bluer::{self, monitor::Monitor};
+use std::{collections::HashMap, sync::Arc, time::{SystemTime, UNIX_EPOCH}};
 
-use anyhow::Result;
+use bluer::{self, Adapter, AdapterEvent, Address};
-use futures::StreamExt;
+
+use anyhow::{Result, Context};
+use futures::{Stream, StreamExt};
+use tokio;
+use warp::Filter;
+use tokio::sync::Mutex;
+
+const VENDOR_ID_SENSIRION: u16 = 0x06d5;
+
+#[derive(Debug)]
+struct Data {
+
+    /// ID
+    addr: Address, 
+
+    /// Temperature in °C
+    temperature: f32,
+
+    /// Humidity in %
+    humidity: f32,
+
+    /// CO2 in parts per million
+    co2: u16,
+}
+
+impl Data {
+    fn from_pkt(addr: Address, b: &[u8]) -> Data {
+        eprintln!("Packet {:?}", b);
+        Data {
+            addr,
+            temperature: (u16::from_le_bytes([b[2], b[3]]) as f32) * 175.0 / 65535.0 - 45.0,
+            humidity: (u16::from_le_bytes([b[4], b[5]]) as f32) * 100.0 / 65535.0,
+            co2: u16::from_le_bytes([b[6], b[7]]),
+        }
+    }
+}
+
+#[derive(Debug,Default)]
+struct DataStore {
+    devices: HashMap<Address, (Data, SystemTime)>,
+}
+
+impl DataStore {
+
+    pub fn insert(&mut self, data: Data, timestamp: SystemTime) {
+        self.devices.insert(data.addr, (data, timestamp));
+    }
+
+    pub fn scrape(&mut self) -> String {
+        let mut scrape = format!("# HELP sensirion_temperature_celsius Temperature reported by a Sensirion sensor, in °C\n");
+        scrape += "# TYPE sensirion_temperature_celsius gauge\n";
+        scrape += "# HELP sensirion_humidity_percent Humidity reported by a Sensirion sensor, in %H\n";
+        scrape += "# TYPE sensirion_humidity_percent gauge\n";
+        scrape += "# HELP sensirion_co2_ppm CO2 detected by a Sensirion sensor, in parts per million\n";
+        scrape += "# TYPE sensirion_co2_ppm gauge\n";
+
+        for (_, (data, point)) in self.devices.iter() {
+            let Data { addr, temperature, humidity, co2 } = data;
+            let time = point.duration_since(UNIX_EPOCH).expect("Time went backwards").as_millis();
+            scrape += &format!("sensirion_temperature_celsius{{id=\"{addr}\"}} {temperature} {time}\n");            
+            scrape += &format!("sensirion_humidity_percent{{id=\"{addr}\"}} {temperature} {time}\n");            
+            scrape += &format!("sensirion_co2_ppm{{id=\"{addr}\"}} {temperature} {time}\n");            
+        }
+
+        scrape
+    }
+
+}
 
 #[tokio::main(flavor="current_thread")]
 async fn main() -> Result<()> {
 
     let session = bluer::Session::new().await?;
+    let adapter = Arc::new(session.default_adapter().await?);
+    let store = Arc::new(Mutex::new(DataStore::default()));
 
-    let adapter = session.default_adapter().await?;
+    let mut stream = Box::pin(sensor_reports(adapter).await?);
+    
+    let (tx, rx)= tokio::sync::mpsc::channel(256);
 
-    adapter.set_powered(true).await?;
+    let sniffer: tokio::task::JoinHandle<()> = tokio::spawn(async move {
+        while let Some(data) = stream.next().await {
+            tx.send(data).await;
+        }
+    });
+    
+    let filter =
+                 warp::path!("metrics").map(move || store.lock().unwrap().scrape())
+             .or(warp::path!().map(move || { warp::reply::html("<h1>Sensirion BLE exporter</h1>") }));
 
-    let mm = adapter.monitor().await?;
+    Ok(warp::serve(filter).run("127.0.0.1:9177").await)
-    let mut handle = mm.register(Monitor::default()).await?;
 
-    while let Some(evt) = handle.next().await {
+}
-        eprintln!("{:?}", evt);
+
-    }
+
-
+
-    Ok(())
+async fn extract(adapter: Arc<Adapter>, evt: AdapterEvent) -> Option<Data> {
+    let AdapterEvent::DeviceAdded(addr) = evt else { return None };
+    let dev = adapter.device(addr).ok()?;
+    let data = dev.manufacturer_data().await.ok()??;
+    let payload = data.get(&VENDOR_ID_SENSIRION)?;
+    Some(Data::from_pkt(addr, &payload[2..]))
+}
+
+async fn sensor_reports<'a>(adapter: Arc<Adapter>) -> Result<impl Stream<Item=Data> + 'a> {
+    Ok(adapter.discover_devices().await?
+        .filter_map(move |evt| { extract(Arc::clone(&adapter), evt) }))
 }