Cannot read properties of undefined (reading 'fetch')
Hey there, I'm using cloudflare workers with
Whenever I attempt to
workers-rs and wrangler. I currently have a basic hello world worker setup:
use worker::*;
mod utils;
fn log_request(req: &Request) {
console_log!(
"{} - [{}], located at: {:?}, within: {}",
Date::now().to_string(),
req.path(),
req.cf().coordinates().unwrap_or_default(),
req.cf().region().unwrap_or_else(|| "unknown region".into())
);
}
#[event(fetch)]
pub async fn main(req: Request, env: Env, _ctx: worker::Context) -> Result<Response> {
log_request(&req);
// Optionally, get more helpful error messages written to the console in the case of a panic.
utils::set_panic_hook();
// Optionally, use the Router to handle matching endpoints, use ":name" placeholders, or "*name"
// catch-alls to match on specific patterns. Alternatively, use `Router::with_data(D)` to
// provide arbitrary data that will be accessible in each route via the `ctx.data()` method.
let router = Router::new();
// Add as many routes as your Worker needs! Each route will get a `Request` for handling HTTP
// functionality and a `RouteContext` which you can use to and get route parameters and
// Environment bindings like KV Stores, Durable Objects, Secrets, and Variables.
router
.get("/", |_, _| Response::ok("Hello from Workers!"))
.run(req, env)
.await
}
use worker::*;
mod utils;
fn log_request(req: &Request) {
console_log!(
"{} - [{}], located at: {:?}, within: {}",
Date::now().to_string(),
req.path(),
req.cf().coordinates().unwrap_or_default(),
req.cf().region().unwrap_or_else(|| "unknown region".into())
);
}
#[event(fetch)]
pub async fn main(req: Request, env: Env, _ctx: worker::Context) -> Result<Response> {
log_request(&req);
// Optionally, get more helpful error messages written to the console in the case of a panic.
utils::set_panic_hook();
// Optionally, use the Router to handle matching endpoints, use ":name" placeholders, or "*name"
// catch-alls to match on specific patterns. Alternatively, use `Router::with_data(D)` to
// provide arbitrary data that will be accessible in each route via the `ctx.data()` method.
let router = Router::new();
// Add as many routes as your Worker needs! Each route will get a `Request` for handling HTTP
// functionality and a `RouteContext` which you can use to and get route parameters and
// Environment bindings like KV Stores, Durable Objects, Secrets, and Variables.
router
.get("/", |_, _| Response::ok("Hello from Workers!"))
.run(req, env)
.await
}
GET the worker, I receive the following error.
Any help would be appreciated
4 Replies
What's your Cargo.toml?
and Wrangler.toml
Cargo.toml:
[package]
name = "todo-worker"
version = "0.0.0"
edition = "2018"
[lib]
crate-type = ["cdylib", "rlib"]
[features]
default = ["console_error_panic_hook"]
[dependencies]
cfg-if = "0.1.2"
worker = "0.0.11"
serde_json = "1.0.67"
# The `console_error_panic_hook` crate provides better debugging of panics by
# logging them with `console.error`. This is great for development, but requires
# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
# code size when deploying.
console_error_panic_hook = { version = "0.1.1", optional = true }
[profile.release]
# Tell `rustc` to optimize for small code size.
opt-level = "s"
[package]
name = "todo-worker"
version = "0.0.0"
edition = "2018"
[lib]
crate-type = ["cdylib", "rlib"]
[features]
default = ["console_error_panic_hook"]
[dependencies]
cfg-if = "0.1.2"
worker = "0.0.11"
serde_json = "1.0.67"
# The `console_error_panic_hook` crate provides better debugging of panics by
# logging them with `console.error`. This is great for development, but requires
# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
# code size when deploying.
console_error_panic_hook = { version = "0.1.1", optional = true }
[profile.release]
# Tell `rustc` to optimize for small code size.
opt-level = "s"
wrangler.toml
name = "" # todo
main = "build/worker/shim.mjs"
compatibility_date = "2022-01-20"
[vars]
WORKERS_RS_VERSION = "0.0.11"
[build]
command = "cargo install -q worker-build --version 0.0.7 && worker-build --release"
name = "" # todo
main = "build/worker/shim.mjs"
compatibility_date = "2022-01-20"
[vars]
WORKERS_RS_VERSION = "0.0.11"
[build]
command = "cargo install -q worker-build --version 0.0.7 && worker-build --release"
Remove
0.0.7 from your build.command in wrangler.toml and bump worker in Cargo.toml's dependencies to 0.0.16alright, trying that now
awesome, thank you very much, that 