multipart::Part::file: function or associated item not found in Part

[milosgajdos]

I am trying to use reqwest::Part to build a new part from a file before I send it to an upstream server.

I've enabled the multipart feature in Cargo.toml:

reqwest = { version = "0.12", features = ["json", "multipart"] }

However, when I try to use a code like this, I get a build error as per the title.

let file_part = multipart::Part::file("/foo/bar.out)?.mime_str("foo/bar")?;

Creating a text Part with text works like a charm:

let text_part = multipart::Part::text("footext").mime_str("text/plain")?;

According to the docs multipart::Part::file should be available: https://docs.rs/reqwest/0.12.3/reqwest/blocking/multipart/struct.Part.html#method.file

I had a look into Cargo.lock just in case I use some outdated crate, but it seems to be pretty up to date:

[[package]]
name = "reqwest"
version = "0.12.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3e6cc1e89e689536eb5aeede61520e874df5a4707df811cd5da4aa5fbb2aae19"
dependencies = [
 "base64 0.22.0",
 "bytes",
 "encoding_rs",
 "futures-core",
 "futures-util",
 "h2",
 "http",
 "http-body",
 "http-body-util",
 "hyper",
 "hyper-tls",
 "hyper-util",
 "ipnet",
 "js-sys",
 "log",
 "mime",
 "mime_guess",
 "native-tls",
 "once_cell",
 "percent-encoding",
 "pin-project-lite",
 "rustls-pemfile",
 "serde",
 "serde_json",
 "serde_urlencoded",
 "sync_wrapper",
 "system-configuration",
 "tokio",
 "tokio-native-tls",
 "tower-service",
 "url",
 "wasm-bindgen",
 "wasm-bindgen-futures",
 "web-sys",
 "winreg",
]

So I am very puzzled by this. Anyone has any ideas?

[milosgajdos]

Oh Ignore me!! I've mixed up the blocking and async modules. Incredible oversight on my part. It just hit me.

The async obviously does not have the file func:
https://docs.rs/reqwest/latest/reqwest/multipart/struct.Part.html