From 698d76fe4123a796aefc9b6c67e8caa6c5247c1d Mon Sep 17 00:00:00 2001
From: Dax Frost <daxfrost@gmail.com>
Date: Thu, 13 Mar 2025 13:18:32 -0500
Subject: [PATCH] Update easyocr.ts to support JSON payloads bigger than buffer
 size on read_text commands

---
 src/easyocr.ts | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/src/easyocr.ts b/src/easyocr.ts
index ed6ea42..8c8e8ea 100644
--- a/src/easyocr.ts
+++ b/src/easyocr.ts
@@ -50,6 +50,9 @@ export class EasyOCR {
       const commandString = `${command} ${args.join(' ')}\n`;
       this.pythonProcess!.stdin!.write(commandString);
 
+      // adding this to collect partial JSON payloads, to support larger more complex image files than the data buffer response supports (JSON will be incomplete)
+      let fullResult = '';
+      
       const onData = (data: Buffer) => {
         const result = data.toString().trim();
         try {
@@ -57,7 +60,25 @@ export class EasyOCR {
           this.pythonProcess!.stdout!.removeListener('data', onData);
           resolve(parsedResult);
         } catch (error) {
-          reject(new Error(`Failed to parse Python output: ${error}`));
+          // handle commands for read_text of images differently if parsing fails
+          if (command === 'read_text') {
+            // add to the payload
+            fullResult += result;
+            try {
+                // try parse again in case it's complete
+                const parsedResult = JSON.parse(fullResult);
+                // if it is complete, we can finish the process
+                this.pythonProcess.stdout.removeListener('data', onData);
+                resolve(parsedResult);
+            }
+            catch (error) {
+              // it's incomplete, let's try again
+              console.log("waiting for full result... ", fullResult);
+            }
+        } else {
+            // all other errors go here
+            reject(new Error(`Failed to parse Python output: ${error}`));
+        }
         }
       };
 
@@ -95,4 +116,4 @@ export class EasyOCR {
   }
 }
 
-export default EasyOCR;
\ No newline at end of file
+export default EasyOCR;