Actix-web JsonConfig error_handler not working · Issue #1628 · actix/actix-web · GitHub
https://github.com/actix/actix-web/issues/1628
Easy guide to JSON input validation in Rust web services - LogRocket Blog
https://blog.logrocket.com/json-input-validation-in-rust-web-services/
GitHub - rambler-digital-solutions/actix-web-validator: Rust library for providing validation mechanism to actix-web with Validator crate.
https://github.com/rambler-digital-solutions/actix-web-validator
JSON Deserialization errors are no longer outputted by default · Issue #1237 · actix/actix-web · GitHub
https://github.com/actix/actix-web/issues/1237
Testing Rust: Helper Functions - Dan Munckton
https://dan.munckton.co.uk/blog/2018/02/25/testing-rust-helper-functions/
rust - Actix-web 2.0 JsonConfig error_handler not working - Stack Overflow
https://stackoverflow.com/questions/63361464/actix-web-2-0-jsonconfig-error-handler-not-working
rustfuif/server.rs at master · BartWillems/rustfuif · GitHub
https://github.com/BartWillems/rustfuif/blob/master/src/server.rs