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Wrangler: fix console.debug logs not being logged at the info level (as users expect) #10757

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Merged
merged 1 commit into from
Oct 2, 2025
Merged

Wrangler: fix console.debug logs not being logged at the info level (as users expect) #10757

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5 changes: 5 additions & 0 deletions .changeset/mean-parks-take.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"wrangler": patch
---

fix `console.debug` logs not being logged at the `info` level (as users expect)
4 changes: 4 additions & 0 deletions fixtures/worker-logs/tests/index.test.ts
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Expand Up @@ -58,6 +58,7 @@ describe("'wrangler dev' correctly displays logs", () => {
const output = await getWranglerDevOutput("module");
expect(output).toMatchInlineSnapshot(`
[
"<<<<< console.debug() message >>>>>",
"<<<<< console.info() message >>>>>",
"<<<<< console.log() message >>>>>",
"<<<<< stderr.write() message >>>>>",
Expand All @@ -72,6 +73,7 @@ describe("'wrangler dev' correctly displays logs", () => {
const output = await getWranglerDevOutput("module", ["--log-level=log"]);
expect(output).toMatchInlineSnapshot(`
[
"<<<<< console.debug() message >>>>>",
"<<<<< console.info() message >>>>>",
"<<<<< console.log() message >>>>>",
"<<<<< stderr.write() message >>>>>",
Expand All @@ -86,6 +88,7 @@ describe("'wrangler dev' correctly displays logs", () => {
const output = await getWranglerDevOutput("module", ["--log-level=info"]);
expect(output).toMatchInlineSnapshot(`
[
"<<<<< console.debug() message >>>>>",
"<<<<< console.info() message >>>>>",
"X [ERROR] <<<<< console.error() message >>>>>",
"▲ [WARNING] <<<<< console.warning() message >>>>>",
Expand Down Expand Up @@ -315,6 +318,7 @@ describe("'wrangler dev' correctly displays logs", () => {
]);
expect(output).toMatchInlineSnapshot(`
[
"<<<<< console.debug() message >>>>>",
"<<<<< console.info() message >>>>>",
"<<<<< console.log() message >>>>>",
"X [ERROR] <<<<< console.error() message >>>>>",
Expand Down
10 changes: 9 additions & 1 deletion packages/wrangler/src/dev/miniflare/stdio.ts
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Expand Up @@ -185,7 +185,15 @@ function logStructuredLog(
}

if (level === "debug") {
return logger.debug(message);
// note that debug logs are logged at the info level, this is like so because before structured logs
// were introduced developers were used to call `console.debug` and get their logs in the terminal
// during local development and we don't want to break such workflow in a non-major release
// (For more context see: https://github.com/cloudflare/workers-sdk/issues/10690)
//
// TODO: for the next major release we do want the debug logs to be logged at the debug level instead,
// we should also introduce some mechanism to allows users to get their worker debug logs without
// also getting all the wrangler debug logs
return logger.info(message);
}

if (level === "error") {
Expand Down
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