From 0bdbc766f26764ccf24a47b00941dfb89897b4b0 Mon Sep 17 00:00:00 2001
From: Lance Herman <lance.herman.btc@gmail.com>
Date: Sat, 10 May 2025 02:54:35 -0500
Subject: [PATCH 1/2] Enhance `invariant` function to log errors using
 `@onflow/util-logger` and add optional logger level parameter. Update package
 dependencies to include `@onflow/util-logger`.

---
 packages/util-invariant/package.json |  3 ++-
 packages/util-invariant/src/index.ts | 24 ++++++++++++++++++------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/packages/util-invariant/package.json b/packages/util-invariant/package.json
index a4d02b79c..da9d420e0 100644
--- a/packages/util-invariant/package.json
+++ b/packages/util-invariant/package.json
@@ -36,6 +36,7 @@
     "start": "fcl-bundle --watch"
   },
   "dependencies": {
-    "@babel/runtime": "^7.25.7"
+    "@babel/runtime": "^7.25.7",
+    "@onflow/util-logger": "^1.3.3"
   }
 }
diff --git a/packages/util-invariant/src/index.ts b/packages/util-invariant/src/index.ts
index 414748b99..1900b9c50 100644
--- a/packages/util-invariant/src/index.ts
+++ b/packages/util-invariant/src/index.ts
@@ -1,12 +1,16 @@
+import * as logger from "@onflow/util-logger"
+
 /**
- * Asserts fact is true, otherwise throw an error with invariant message
- * @param fact
- * @param msg
- * @param rest
+ * Asserts fact is true, otherwise logs error and optionally throws
+ * @param fact - The condition to assert
+ * @param msg - The message to log if assertion fails
+ * @param loggerLevel - Optional logger level (defaults to error which will throw)
+ * @param rest - Additional arguments to log
  */
 export function invariant(
   fact: boolean,
   msg: string,
+  loggerLevel: number = logger.LEVELS.error,
   ...rest: any[]
 ): asserts fact {
   if (!fact) {
@@ -15,7 +19,15 @@ export function invariant(
       ?.split("\n")
       ?.filter(d => !/at invariant/.test(d))
       ?.join("\n")
-    console.error("\n\n---\n\n", error, "\n\n", ...rest, "\n\n---\n\n")
-    throw error
+
+    logger.log({
+      title: "Invariant Violation",
+      message: `${error.message}\n${rest.length ? "\nDetails:" + JSON.stringify(rest, null, 2) : ""}`,
+      level: loggerLevel
+    })
+
+    if (loggerLevel === logger.LEVELS.error) {
+      throw error
+    }
   }
 }

From aed11026f246152dc9dfecfb585a54ee6bf96765 Mon Sep 17 00:00:00 2001
From: Lance Herman <lance.herman.btc@gmail.com>
Date: Mon, 26 May 2025 21:51:35 -0500
Subject: [PATCH 2/2] Update packages/util-invariant/src/index.ts

Co-authored-by: Jordan Ribbink <17958158+jribbink@users.noreply.github.com>
---
 packages/util-invariant/src/index.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/packages/util-invariant/src/index.ts b/packages/util-invariant/src/index.ts
index 1900b9c50..309fa6d80 100644
--- a/packages/util-invariant/src/index.ts
+++ b/packages/util-invariant/src/index.ts
@@ -10,7 +10,6 @@ import * as logger from "@onflow/util-logger"
 export function invariant(
   fact: boolean,
   msg: string,
-  loggerLevel: number = logger.LEVELS.error,
   ...rest: any[]
 ): asserts fact {
   if (!fact) {