How to use JSON as configuration file?

For yaml it's straight forward, but how to use JSON ?

I tried following key/value formats:
`[
    {"pipeline_template", "Jenkinsfile"},
    {"repository_name", "ExampleProject"}
]
`
and

`{
    "pipeline_template": "Jenkinsfile",
    "repository_name" : "ExampleProject"
}`

nothing worked out for me