Add optional telemetry for payjoin-service

This enables structured log output and configures exporters for
OpenTelemetry.

Author: spacebear21

Cargo-minimal.lock

@@ -2106,6 +2106,15 @@ version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
 
+[[package]]
+name = "itertools"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b192c782037fadd9cfa75548310488aabdbf3d2da73885b31bd0abd03351285"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.11"
@@ -2512,6 +2521,61 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "opentelemetry-appender-tracing"
+version = "0.31.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef6a1ac5ca3accf562b8c306fa8483c85f4390f768185ab775f242f7fe8fdcc2"
+dependencies = [
+ "opentelemetry",
+ "tracing",
+ "tracing-core",
+ "tracing-subscriber",
+]
+
+[[package]]
+name = "opentelemetry-http"
+version = "0.31.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7a6d09a73194e6b66df7c8f1b680f156d916a1a942abf2de06823dd02b7855d"
+dependencies = [
+ "async-trait",
+ "bytes",
+ "http",
+ "opentelemetry",
+ "reqwest",
+]
+
+[[package]]
+name = "opentelemetry-otlp"
+version = "0.31.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a2366db2dca4d2ad033cad11e6ee42844fd727007af5ad04a1730f4cb8163bf"
+dependencies = [
+ "http",
+ "opentelemetry",
+ "opentelemetry-http",
+ "opentelemetry-proto",
+ "opentelemetry_sdk",
+ "prost",
+ "reqwest",
+ "thiserror 2.0.17",
+ "tracing",
+]
+
+[[package]]
+name = "opentelemetry-proto"
+version = "0.31.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7175df06de5eaee9909d4805a3d07e28bb752c34cab57fa9cff549da596b30f"
+dependencies = [
+ "opentelemetry",
+ "opentelemetry_sdk",
+ "prost",
+ "tonic",
+ "tonic-prost",
+]
+
 [[package]]
 name = "opentelemetry_sdk"
 version = "0.31.0"
@@ -2725,6 +2789,8 @@ dependencies = [
  "config",
  "ohttp-relay",
  "opentelemetry",
+ "opentelemetry-appender-tracing",
+ "opentelemetry-otlp",
  "opentelemetry_sdk",
  "payjoin-directory",
  "payjoin-test-utils",
@@ -2739,6 +2805,7 @@ dependencies = [
  "tokio-stream",
  "tower",
  "tracing",
+ "tracing-opentelemetry",
  "tracing-subscriber",
 ]
 
@@ -2942,6 +3009,29 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "prost"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2ea70524a2f82d518bce41317d0fae74151505651af45faf1ffbd6fd33f0568"
+dependencies = [
+ "bytes",
+ "prost-derive",
+]
+
+[[package]]
+name = "prost-derive"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27c6023962132f4b30eb4c172c91ce92d933da334c59c23cddee82358ddafb0b"
+dependencies = [
+ "anyhow",
+ "itertools",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.106",
+]
+
 [[package]]
 name = "quinn"
 version = "0.11.8"
@@ -4227,6 +4317,38 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df8b2b54733674ad286d16267dcfc7a71ed5c776e4ac7aa3c3e2561f7c637bf2"
 
+[[package]]
+name = "tonic"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a286e33f82f8a1ee2df63f4fa35c0becf4a85a0cb03091a15fd7bf0b402dc94a"
+dependencies = [
+ "async-trait",
+ "base64 0.22.1",
+ "bytes",
+ "http",
+ "http-body",
+ "http-body-util",
+ "percent-encoding",
+ "pin-project",
+ "sync_wrapper",
+ "tokio-stream",
+ "tower-layer",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
+name = "tonic-prost"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6c55a2d6a14174563de34409c9f92ff981d006f56da9c6ecd40d9d4a31500b0"
+dependencies = [
+ "bytes",
+ "prost",
+ "tonic",
+]
+
 [[package]]
 name = "tower"
 version = "0.5.2"
@@ -4322,6 +4444,35 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-opentelemetry"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e6e5658463dd88089aba75c7791e1d3120633b1bfde22478b28f625a9bb1b8e"
+dependencies = [
+ "js-sys",
+ "opentelemetry",
+ "opentelemetry_sdk",
+ "rustversion",
+ "smallvec",
+ "thiserror 2.0.17",
+ "tracing",
+ "tracing-core",
+ "tracing-log",
+ "tracing-subscriber",
+ "web-time",
+]
+
+[[package]]
+name = "tracing-serde"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "704b1aeb7be0d0a84fc9828cae51dab5970fee5088f83d1dd7ee6f6246fc6ff1"
+dependencies = [
+ "serde",
+ "tracing-core",
+]
+
 [[package]]
 name = "tracing-subscriber"
 version = "0.3.20"
@@ -4332,12 +4483,15 @@ dependencies = [
  "nu-ansi-term",
  "once_cell",
  "regex-automata",
+ "serde",
+ "serde_json",
  "sharded-slab",
  "smallvec",
  "thread_local",
  "tracing",
  "tracing-core",
  "tracing-log",
+ "tracing-serde",
 ]
 
 [[package]]