Features for sqlx for Cargo.toml

help
1

Hello,
I’m posting here because I still don’t fully understand how to use SQLX to connect to different relational databases. I’m currently building the backend for a blog and my database will be PostgreSQL, so when I add the settings to Cargo.toml, I’m not sure whether to use runtime-async-std or runtime-tokio.
I’ve read the documentation, but I’ve found it difficult to fully grasp this concept.

[package]
name = "rust-blog-backend"
version = "0.1.0"
edition = "2024"

[lib]
name = "lib"
path = "src/lib.rs"

[dependencies]
actix-web = "4.13.0"
chrono = { version = "0.4.45", features = ["serde"] }
serde_json = "1.0.150"
serde = { version = "1.0.228", features = ["derive"] }
actix-cors = "0.7.1"
sqlx = { version = "0.9.0", features = ["postgres"] }

Thank you very much for your understanding and for any help you can offer.

2

i do not know the answer! i would suggest though you pick the same runtime used by your chosen web framework.

3

if you are not sure, tokio is probably the safer one to choose.

tokio is the default runtime for most of rust's async ecosystem. and you can always switch to a different one, after you get some experience with the default configuration.

4

Async std has been discontinued

5

@chung @nerditation @rsn

Thank very much for comment, you comment are good help

6

You shouldn't enable just any feature, you should enable the one for the async runtime you're using.

Since you're using actix-web and actix uses tokio under the hood, you should then enable runtime-tokio