Impl OptionalFromRequest on MultipartFile and change behaviour on MultipartFiles to contain 0 files

examples/multipart_file/Cargo.lock

@@ -17,58 +17,13 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
-[[package]]
-name = "async-trait"
-version = "0.1.80"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "axum"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a6c9af12842a67734c9a2e355436e5d03b22383ed60cf13cd0c18fbfe3dcbcf"
-dependencies = [
- "async-trait",
- "axum-core 0.4.3",
- "bytes",
- "futures-util",
- "http",
- "http-body",
- "http-body-util",
- "hyper",
- "hyper-util",
- "itoa",
- "matchit 0.7.3",
- "memchr",
- "mime",
- "percent-encoding",
- "pin-project-lite",
- "rustversion",
- "serde",
- "serde_json",
- "serde_path_to_error",
- "serde_urlencoded",
- "sync_wrapper 1.0.1",
- "tokio",
- "tower 0.4.13",
- "tower-layer",
- "tower-service",
- "tracing",
-]
-
 [[package]]
 name = "axum"
 version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "021e862c184ae977658b36c4500f7feac3221ca5da43e3f25bd04ab6c79a29b5"
 dependencies = [
- "axum-core 0.5.2",
+ "axum-core",
  "bytes",
  "form_urlencoded",
  "futures-util",
@@ -78,7 +33,7 @@ dependencies = [
  "hyper",
  "hyper-util",
  "itoa",
- "matchit 0.8.4",
+ "matchit",
  "memchr",
  "mime",
  "multer",
@@ -89,7 +44,7 @@ dependencies = [
  "serde_json",
  "serde_path_to_error",
  "serde_urlencoded",
- "sync_wrapper 1.0.1",
+ "sync_wrapper",
  "tokio",
  "tower 0.5.2",
  "tower-layer",
@@ -97,27 +52,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "axum-core"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a15c63fd72d41492dc4f497196f5da1fb04fb7529e631d73630d1b491e47a2e3"
-dependencies = [
- "async-trait",
- "bytes",
- "futures-util",
- "http",
- "http-body",
- "http-body-util",
- "mime",
- "pin-project-lite",
- "rustversion",
- "sync_wrapper 0.1.2",
- "tower-layer",
- "tower-service",
- "tracing",
-]
-
 [[package]]
 name = "axum-core"
 version = "0.5.2"
@@ -132,7 +66,7 @@ dependencies = [
  "mime",
  "pin-project-lite",
  "rustversion",
- "sync_wrapper 1.0.1",
+ "sync_wrapper",
  "tower-layer",
  "tower-service",
  "tracing",
@@ -375,9 +309,10 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 name = "lib"
 version = "2.0.0"
 dependencies = [
- "axum 0.8.4",
+ "axum",
  "derive_more",
  "mime",
+ "serde",
  "thiserror",
  "tokio",
  "tower 0.5.2",
@@ -398,12 +333,6 @@ version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
-[[package]]
-name = "matchit"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e7465ac9959cc2b1404e8e2367b43684a6d13790fe23056cc8c6c5a6b7bcb94"
-
 [[package]]
 name = "matchit"
 version = "0.8.4"
@@ -464,7 +393,7 @@ dependencies = [
 name = "multipart_file"
 version = "0.1.0"
 dependencies = [
- "axum 0.7.5",
+ "axum",
  "lib",
  "tokio",
 ]
@@ -675,12 +604,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "sync_wrapper"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
-
 [[package]]
 name = "sync_wrapper"
 version = "1.0.1"
@@ -758,7 +681,6 @@ dependencies = [
  "tokio",
  "tower-layer",
  "tower-service",
- "tracing",
 ]
 
 [[package]]
@@ -770,7 +692,7 @@ dependencies = [
  "futures-core",
  "futures-util",
  "pin-project-lite",
- "sync_wrapper 1.0.1",
+ "sync_wrapper",
  "tokio",
  "tower-layer",
  "tower-service",