Swagger .json file to JMeter (.jmx) conversion :

We can convert in 2 ways.

1 .  online tool  http://editor.swagger.io/#/

2.  Go to https://swagger.io/docs/open-source-tools/swagger-codegen/     Download swagger-codegen-cli-2.2.1.jar  and run the following command in command prompt.

java -jar swagger-codegen-cli-2.2.1.jar generate -i http://petstore.swagger.io/v2/swagger.json -l jmeter

Now open open the folder, you can find

Now open the .Jmx file, all the API will be populated .