[Solved] This code throws an error when sending /true to @Get(':flag')check(@Param('flag', ParseIntPipe) flag: number) { return flag; } What is the fix? | NestJS

NestJS - Pipes

This code throws an error when sending /true to

@Get(':flag')
check(@Param('flag', ParseIntPipe) flag: number) { return flag; }

What is the fix?

ARemove the pipe entirely

BChange parameter type to string

CReplace ParseIntPipe with ParseBoolPipe

DUse ValidationPipe instead

Step-by-Step Solution

Solution:

Step 1: Understand why error occurs
Sending 'true' to ParseIntPipe causes conversion failure because 'true' is not a number.
Step 2: Choose correct pipe for boolean strings
Replacing ParseIntPipe with ParseBoolPipe correctly converts 'true' or 'false' strings to boolean values.
Final Answer:
Replace ParseIntPipe with ParseBoolPipe -> Option C
Quick Check:
Use ParseBoolPipe for boolean string params [OK]

Quick Trick: Use ParseBoolPipe for 'true'/'false' strings [OK]

Common Mistakes:

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This code throws an error when sending /true to