Prelude | Swift µframework of simple functional programming tools

I'm just trying to do something similar to wget, where I download a file from the Internet. I saw that there used to be a package called http-wget, but that it's been deprecated in favor of http-conduit.

Http-conduit has a simple example for how to get the contents of a web page using httpBS. So following that, I got this to work:

I am learning PureScript by following PureScript by example, and by chapter 3 (rest of definitions there) there is an exercise to delete duplicate entries from a bog, but I cannot get to work the case split for the Maybe (Nothing/Just e). I checked also the syntax guide but I cannot catch the pitfall and keep getting Unknown data constructor Nothing.

I'm using Tomcat 10 and eclipse to develop a J2E (or Jakarta EE) web application. I followed this tutorial (http://objis.com/tutoriel-securite-declarative-jee-avec-jaas/#partie2) which seems old (it's a french document, because i'm french, sorry if my english isn't perfect), but I also read the Tomcat 10 documentation.
The dataSource works, I followed instructions on this page (https://tomcat.apache.org/tomcat-10.0-doc/jndi-datasource-examples-howto.html#Oracle_8i,_9i_&_10g) and tested it, but it seems that the realm doesn't work, because I can't login successfully. I always have an authentification error, even if I use the right login and password.
I tried a lot of "solutions" to correct this, but no one works. And I still don't know if I have to put the realm tag inside context.xml, server.xml or both. I tried context.xml and both, but i don't see any difference.

My web.xml :

I have simple client/server application. I am receiving message on the server side from client but I want to send that response to the channel from server to other file and I am receiving error "borrowed value does not live long enough".

I have searched in the stack overflow for similar previous questions but not getting enough understanding of lifetime. Is there a good documentation or if simple example available on this topic?

For now if someone can help me to fix this code (may be edit the portion of code which needs to fix) that would be helpful.

Thanks in advance.

I have four modules. The client is sending messages and the server is receiving messages. Once the server receives the message, it tries to send the message to the MPSC channel. I put the receiver in the other .rs file where I intend to receive the message.

I am not getting any message on the receiver side.

Maybe an infinite loop on the server side creates a problem, but is there a way to make this channel communication working?

client.rs

I'm doing embedded game development for the Sega Megadrive with Rust and would like a random number generator to increase replayability. It can be pseudo-random: there's no security stuff required.

I've been looking at the rand crate which falls in the "No standard library" department, but I'm not sure on how to use it with this in my Crate.toml:

I'm running into an issue with trait bounds and can't understand what I'm doing wrong. I'm working with the arduino-uno crate from avr-hal and I have a function that reads the ADC, implemented as follows:

I am creating simple client server communication with unix datagram socket in Rust. I am receiving message to server from client with bytes length but not able to converting back to the original string I sent from client. I have tried https://doc.rust-lang.org/std/str/fn.from_utf8.html and from_utf8_lossy but had no success. Here is the code.

How to get original string on the server?