Once a DO is created, it does not move.

Hard@Work · 2024-07-23T16:26:25.887Z

Once a DO is created, it does not move. I check where a DO is by fetching a `/cdn-cgi/trace`, then seeing the colo field

S

Sébastien Morel•7/24/24, 8:01 AM

maybe I miss something but is this endpoint kind of automatic on the DO ?

https://durable-object/cdn-cgi/trace

https://durable-object/cdn-cgi/trace

https://durable-object/cdn-cgi/trace

https://durable-object/cdn-cgi/trace

SSébastien Morel maybe I miss something but is this endpoint kind of automatic on the DO ? `https...

H

Hard@WorkOP•7/24/24, 8:05 AM

No, it is a fetch call you make from within the Worker. See https://github.com/helloimalastair/where-durableobjects-live/blob/main/apps/worker/src/DO.ts

GitHub

where-durableobjects-live/apps/worker/src/DO.ts at main · helloimal...

Tracking where Durable Objects are created, wherever you are in the world. - helloimalastair/where-durableobjects-live

S

Sébastien Morel•7/24/24, 8:06 AM

ha I see

S

Sébastien Morel•7/24/24, 8:06 AM

ok

S

Sébastien Morel•7/24/24, 8:11 AM

would it be correct to do the same approach to know where the worker is running?

S

Sébastien Morel•7/24/24, 8:14 AM

right now I did it within the DO, it seems to work, I suppose from within the worker it should work too ?

SSébastien Morel would it be correct to do the same approach to know where the worker is running?

H

Hard@WorkOP•7/24/24, 8:14 AM

Assuming it is a Worker handling an incoming fetch request, I would just get the colo from

request.cf.colo

request.cf.colo

request.cf.colo

request.cf.colo

H

Hard@WorkOP•7/24/24, 8:14 AM

Then you don't have to do a

fetch

fetch

call at all

S

Sébastien Morel•7/24/24, 8:24 AM

ok so first big thanks, for the

colo

colo

colo

colo in the DO, I can see my DO is in SJC (currently in France, 140ms is more than ok)

S

Sébastien Morel•7/24/24, 8:25 AM

I don't see any

cf.colo

cf.colo

cf.colo

cf.colo in the request on the worker though

S

Sébastien Morel•7/24/24, 8:25 AM

"cf-connecting-ip": "xxx",
"cf-ipcountry": "FR",
"cf-ray": "xxx",
"cf-visitor": "{\"scheme\":\"https\"}",

"cf-connecting-ip": "xxx",
"cf-ipcountry": "FR",
"cf-ray": "xxx",
"cf-visitor": "{\"scheme\":\"https\"}",

"cf-connecting-ip": "xxx",
"cf-ipcountry": "FR",
"cf-ray": "xxx",
"cf-visitor": "{\"scheme\":\"https\"}",

"cf-connecting-ip": "xxx",
"cf-ipcountry": "FR",
"cf-ray": "xxx",
"cf-visitor": "{\"scheme\":\"https\"}",

S

Sébastien Morel•7/24/24, 8:25 AM

that's the CF headers I get

SSébastien Morel ```"cf-connecting-ip": "xxx", "cf-ipcountry": "FR", "cf-ray": "xxx", "cf-visitor...

H

Hard@WorkOP•7/24/24, 8:30 AM

It's not in the headers, it is on the Request object itself

H

Hard@WorkOP•7/24/24, 8:31 AM

Like:

export default {
  async fetch(req, env, ctx) {
    console.log("My colo is", req.cf.colo);
    // Do stuff
  }
}

export default {
  async fetch(req, env, ctx) {
    console.log("My colo is", req.cf.colo);
    // Do stuff
  }
}

export default {
  async fetch(req, env, ctx) {
    console.log("My colo is", req.cf.colo);
    // Do stuff
  }
}

export default {
  async fetch(req, env, ctx) {
    console.log("My colo is", req.cf.colo);
    // Do stuff
  }
}

S

Sébastien Morel•7/24/24, 8:36 AM

oh I need to see if I have that in Hono

SSébastien Morel oh I need to see if I have that in Hono

H

Hard@WorkOP•7/24/24, 8:42 AM

app.post('/', async (c) => {
  const colo = c.req.raw.cf?.colo
  ...
})

app.post('/', async (c) => {
  const colo = c.req.raw.cf?.colo
  ...
})

app.post('/', async (c) => {
  const colo = c.req.raw.cf?.colo
  ...
})

app.post('/', async (c) => {
  const colo = c.req.raw.cf?.colo
  ...
})

S

Sébastien Morel•7/24/24, 8:47 AM

yes

modulo some types missing right away

A

anirudh•7/24/24, 9:13 AM

You can also see here: https://where.durableobjects.live

Tracking where Durable Objects are created, wherever you are in the world.

Once a DO is created, it does not move.

Similar Threads

Similar Threads

Similar Threads