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Expected struct file found enum result

WebJun 7, 2024 · use actix_web:: {App, HttpServer}; use anyhow::Result; mod error; # [actix_rt::main] async fn main () -> Result< ()> { HttpServer::new ( App::new ()) .bind ("127.0.0.1:8080")? .run () .await.map_err (anyhow::Error::from) } Share Improve this answer Follow answered Apr 18, 2024 at 2:55 Caleb Hattingh 8,885 2 31 43 Add a …WebNov 26, 2024 · The main function is defined as fn main() -> Result<(), ts::Error>, which means that it must return a value of type Result<(), ts::Error>. In the original code, this is accomplished by the last line: In the original code, this is accomplished by the last line:

How to return JSON as a response in Rust Rocket with auto field ...

WebAug 14, 2024 · It didn't look as a feasible task for me to combine the lookup_* functions, because the closure in the common function would have to take a very complex set of arguments. And I would need to put too many constraints into that function. For example, in the search for enum, I don't need the order of modules to be stable, but I would need to …WebAug 6, 2024 · I've found on the Rocket documentation that is really easy to send JSON as a response: You just have to use the Serde library. Unfortunatly, that wasn't so simple for me... Here is my current code : # [derive (Serialize,Deserialize)] pub struct Printers { pub printers: Vec, } # [derive (Serialize,Deserialize)] pub struct Printer { pub ...halloween baking championship 2022 reddit https://mueblesdmas.com

Match arms have incompatible types. Expected struc `NaiveDate`, found …

WebMar 23, 2015 · You have a Result because File::open (&path) can fail. Failure is represented with the Result type. A Result may be either an Ok, which is the success case, or an Err, the failure case. You need to handle the failure case somehow. The easiest is to just die on failure, using expect: let mut file = File::open (&path).expect ("Unable to open"); WebJun 9, 2024 · In this example, the error occurs because State::Failed has a field which isn't matched. It should be State::Failed (ref msg). In my case I'm matching the field of my enum because I'm doing OperationMode::CBC (_). Why does the error happen? enums rust pattern-matching Share Improve this question Follow edited Jun 9, 2024 at 14:10 …WebMar 11, 2024 · The current issue in your code is that string_for_array.to_string() creates a new String, but the array_display array contains &str references.. The suggestion the compiler gives here (replacing with &string_for_array.to_string()) does not work, because the result of .to_string() will be freed at the end of the line and you would have an invalid …burberry winter jacket ebay

How to return JSON as a response in Rust Rocket with auto field ...

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Expected struct file found enum result

How to use a custom serde deserializer for chrono timestamps?

WebAug 1, 2024 · This topic was automatically closed 90 days after the last reply. We invite you to open a new topic if you have further questions or comments.WebJun 24, 2024 · This pattern is so common that rust's result gives a lot of utilities to make this kind of things easier. Here, the map_err function would make it more straightforward: map_err see:

Expected struct file found enum result

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WebJul 4, 2024 · I am trying to generify a Result that is returned by the reqwest::blocking::get function. It returns a Result <reqwest::blocking::response, reqwest::error>WebOct 17, 2024 · 1 Answer Sorted by: 6 The value returned by async fn is a Future. A Future is an asynchronous computation that can produce a value (although that value may be empty, e.g. ()). Also inside an async fn, you can use .await to wait for the completion of another type that implements the Future trait.

Webmismatched types expected enum `std::result::Result`, found () note: expected type `std::result::Result&lt;(), std::fmt::Error&gt;` found type `()`rustc(E0308) From what I …WebJan 22, 2024 · The result type of this function is Result&gt; and you return Err (Error)). Just put a box around your errors, e.g. Err (Box::new (err_resp)). – CoronA Jan 22, 2024 at 2:04 @CoronA it gives me a new issue. ? couldn't convert the error to std::boxed::Box – Jinn Jan 22, 2024 at 2:21

WebAug 1, 2024 · I am trying to use the anyhow crate, specifically anyhow::Result. The sample code is. use anyhow::Result; fn main () -&gt; Result&lt; ()&gt; { std::fs::read_to_string … </reqwest::blocking::response,>

WebOne "Rust-y" way of solving this is typically to redeclare a variable with the same name: let date_1 = String::new (); /* type: std::string::String */ // ... let date_1 = date_1.split ("/"); /* type: std::str::Split&lt;'_, &amp;str&gt; */. The second date_1 is a different variable (hence it can have a different type), but it has the same name as the ...

burberry winterjackeWebMay 23, 2024 · fn open_file_impl () -> Option { use tauri::api::dialog::Response; let result = tauri::api::dialog::select (None,None).ok ()?; if let Response::Okay (path) = …halloween baking championship 2022 judgesWebJul 14, 2024 · I have some code that needs to create and use a quick_xml::Writer with either a File or Cursor depending on user input. What is the proper Rust way (non-inheritance/no downcasting) to create a Writerburberry winterjasbut the function it is called in ret...burberry winter jacket saleWebAug 23, 2024 · I'm pretty sure the from_timestamp function is returning a DateTime struct and not a Result, so I don't know what "expected struct chrono::NaiveDateTime, found enum std::result::Result" may mean. rusthalloween baking championship 2022 season 8WebApr 25, 2024 · The example from the "chaining computations" section of the Tokio docs does not compile: "expected struct `std::io::Error`, found ()" 6 tokio::select! but for a Vec of futureshalloween baking championship 2022 wikiWebJul 1, 2014 · Generics in Rust :: mismatched types expected struct `Token<'_, T>` found struct `Token<'_, i32> Hot Network Questions If electric field inside a conductor is always zero, then why do free electrons move?halloween baking championship 2022 winner