How to get JSON Output from CDK Synth in AWS CDK

Getting JSON Output from CDK Synth #

The cdk synth command outputs the CloudFormation equivalent of our CDK stack and stores the template as json in the cdk.out directory.

However, the command's output to the terminal is in yaml format.

In order to output JSON from the cdk synth command we have to add the --json flag.

npx cdk synth --json

Issuing the command on a CDK stack, that consists of a single S3 bucket shows the following output:

Further Reading #

• AWS CDK Tutorial for Beginners - Step-by-Step Guide
• How does AWS CDK work
• What is a Token in AWS CDK
• CDK Constructs - Complete Guide
• What is an identifier (id) in AWS CDK
• How to use Context in AWS CDK
• How to use Parameters in AWS CDK