You want to add a new field requestTime with the current timestamp to every request sent to your backend using request mapping. Which mapping template snippet correctly adds this field?

hard📝 Best Practice Q15 of 15

AWS - API Gateway

You want to add a new field requestTime with the current timestamp to every request sent to your backend using request mapping. Which mapping template snippet correctly adds this field?

A{ "user": "$input.path('$.user')", "requestTime": "$context.stage" }

B{ "user": "$input.path('$.user')", "requestTime": "$input.requestTime" }

C{ "user": "$input.path('$.user')", "requestTime": "$stageVariables.requestTime" }

D{ "user": "$input.path('$.user')", "requestTime": "$context.requestTime" }

Step-by-Step Solution

Solution:

Step 1: Identify how to get current request time
In API Gateway mapping templates, $context.requestTime provides the current request timestamp.
Step 2: Check each option for correct usage
{ "user": "$input.path('$.user')", "requestTime": "$context.requestTime" } uses $context.requestTime correctly; others use invalid or unrelated variables.
Final Answer:
{ "user": "$input.path('$.user')", "requestTime": "$context.requestTime" } -> Option D
Quick Check:
Use $context.requestTime for current timestamp [OK]

Quick Trick: Use $context.requestTime to add current timestamp in mapping [OK]

Common Mistakes:

Using $input.requestTime which doesn't exist
Confusing stage variables with request time
Using unrelated context variables

Master "API Gateway" in AWS

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More AWS Quizzes

You want to add a new field requestTime with the current timestamp to every request sent to your backend using request mapping. Which mapping template snippet correctly adds this field?

Step 1: Identify how to get current request time

Step 2: Check each option for correct usage

Final Answer:

Quick Check:

Want More Practice?