Cloudflare Developers•17mo ago

Wrangler R2 local emulation

I'm working on a project locally and i cannot get the worker to emulate an R2 bucket locally. It works if I use --remote but I want to be able to just use it locally.

        // Adding a timeout for the put operation
        const timeout = new Promise<Response>((_, reject) => {
            const id = setTimeout(() => {
                clearTimeout(id);
                reject(new Response('Request timed out', { status: 408 }));
            }, 30000); // 30 seconds timeout
        });

        const putOperation = c.env.MY_BUCKET.put(key, data);

        await Promise.race([timeout, putOperation]);

        // Adding a timeout for the put operation
        const timeout = new Promise<Response>((_, reject) => {
            const id = setTimeout(() => {
                clearTimeout(id);
                reject(new Response('Request timed out', { status: 408 }));
            }, 30000); // 30 seconds timeout
        });

        const putOperation = c.env.MY_BUCKET.put(key, data);

        await Promise.race([timeout, putOperation]);

just seem to time out every time locally.

5 Replies

fs0x30OP•17mo ago

binding = 'MY_BUCKET'
bucket_name = 'main'
preview_bucket_name = 'dev'

binding = 'MY_BUCKET'
bucket_name = 'main'
preview_bucket_name = 'dev'

is inside my wrangler.toml

rvg•17mo ago

I'm experiencing this too, while it worked a while back. Looking at the issues more people seem to be running into this: - https://github.com/cloudflare/workers-sdk/issues/3688 - https://github.com/cloudflare/workers-sdk/issues/3679

GitHub

🐛 BUG: Local R2 .put() hangs while the put operation seems to succe...

Which Cloudflare product(s) does this pertain to? R2 What version(s) of the tool(s) are you using? 3.3.0 [wrangler] What version of Node are you using? 20.4.0 What operating system are you using? W...

GitHub

🐛 BUG: Unable to write to R2 locally · Issue #3679 · cloudflare/wor...

Which Cloudflare product(s) does this pertain to? R2, Wrangler core What version(s) of the tool(s) are you using? 3.1.1 What version of Node are you using? 18.16.1 What operating system are you usi...

fs0x30OP•17mo ago

Such a shame Now that you pointed it out, I do see that the file was successfully pushed to .wrangler folder Do you happen to know of any work-around?

rvg•16mo ago

I traced it to

$ cat patches/miniflare+3.20230807.0.patch 
diff --git a/node_modules/miniflare/dist/src/index.js b/node_modules/miniflare/dist/src/index.js
index 15b1ffe..fc0dca9 100644
--- a/node_modules/miniflare/dist/src/index.js
+++ b/node_modules/miniflare/dist/src/index.js
@@ -8656,7 +8656,7 @@ var R2Router = class extends Router {
         valueSize,
         metadata
       );
-      return encodeResult(result);
+      return encodeJSONResult(result);
     } else if (metadata.method === "createMultipartUpload") {
       const result = await gateway.createMultipartUpload(
         metadata.object,

$ cat patches/miniflare+3.20230807.0.patch 
diff --git a/node_modules/miniflare/dist/src/index.js b/node_modules/miniflare/dist/src/index.js
index 15b1ffe..fc0dca9 100644
--- a/node_modules/miniflare/dist/src/index.js
+++ b/node_modules/miniflare/dist/src/index.js
@@ -8656,7 +8656,7 @@ var R2Router = class extends Router {
         valueSize,
         metadata
       );
-      return encodeResult(result);
+      return encodeJSONResult(result);
     } else if (metadata.method === "createMultipartUpload") {
       const result = await gateway.createMultipartUpload(
         metadata.object,

made a pr in https://github.com/cloudflare/miniflare/pull/654, lets see what the cf folks say 😢 looks like it was nodejs version related, you can see more details on the pr above but downgrading my nodejs to an LTS version also makes it work

fs0x30OP•16mo ago

thanks for the PR @rvg I appreciate it gave me a lot of insight on what is happening i guess we just have to use LTS until Node push their fix @rvg 20.6 node version fixed it

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Wrangler R2 local emulation