Json file not parsing getting error unexpected character (':'' (code 58))

I have json files coming in the following format:

[
	{
		"user": "Beta",
		"percent": 28,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987793,
		"Location": "locationB",
		"desk": "MAC"
	},
	{
		"user": "Alpha",
		"percent": 86,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987733,
		"Location": "locationA",
		"desk": "LIN"
	},

	{
		"user": "Charlie",
		"percent": 03,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987724,
		"Location": "locationA",
		"desk": "LIN"
	},

	{
		"user": "test",
		"percent": 15,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987778,
		"Location": "locationB",
		"desk": "MAC"
	},

	{
		"user": "Delta",
		"percent": 28,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987793,
		"Location": "location1",
		"desk": "MAC"
	},

	{
		"user": "Juliana",
		"percent": 28,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987793,
		"Location": "location1",
		"desk": "MAC"
	}
]


This is my input:

input {
	http {
		port => 8287
		ssl => true
		ssl_certificate_authorities => ["xxxxxxxxxxxxxxxx.crt"]
		ssl_certificate => "path.crt"
		ssl_key => "xxxxxxxxxxxxxxxxxx"
		ssl_verify_mode => peer
	}
}


filter {
	grok {
	match => { "desktop" => "(?<site>^.{2}%{DATA}-%{DATA}%{INT:pod}%{GREEDYDATA}" }
	}
	json {source => "message"}
	
	mutate {
	add_field => { 'processed_at' => "%{@timestamp}" }
	remove_field => ["headers"]
	}

	date {
		match => ['startTime', "yyyy-MM-dd'T'HH:mm:ss", "ISO8601"]
		remove_field => ['startTime']
	}
}

output {

elasticsearch {
	hosts=>["https:xxxxxx:9200, "https:xxxxxx:9200]
	index => "testCM"
	user => XXXX
	password => "xxxxxxxxx"
	keystore => "xxxx.jks"
	keystore_password => "xxxxxx"
	cacert => "xxxxxxxxxxxxx.crt"
	}
}

Quote at the end is missing by copy+paste or in the original configuration?

I had to re-typed the config here but the original has the double quotes. The file gets to Elastic and Kibana but it doesntparse right. When I query the index this one dont have the objects and/or values.

Few tips:
Check how does your json arrive, usually should be in the message field.
Are you sure that the field named desktop is OK?
grok { match => { "desktop" ?
As fair as I can remember, you should remove square brackets [ ] from JSON message.
Use only debug in output:

output {
   stdout { codec => rubydebug{} }
}
type or paste code here

[
	{
		"user": "Beta",
		"percent": 28,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987793,
		"Location": "locationB",
		"desktopGR": "MAC"
	},
	{
		"user": "Alpha",
		"percent": 86,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987733,
		"Location": "locationA",
		"desktopGR": "LIN"
	},

	{
		"user": "Charlie",
		"percent": 03,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987724,
		"Location": "locationA",
		"desktopGR": "LIN"
	},

	{
		"user": "test",
		"percent": 15,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987778,
		"Location": "locationB",
		"desktopGR": "MAC"
	},

	{
		"user": "Delta",
		"percent": 28,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987793,
		"Location": "location1",
		"desktopGR": "MAC"
	},

	{
		"user": "Juliana",
		"percent": 28,
		"startTime": "2022-07-07T11:31:45",
		"type": "CPU",
		"total": 1072987793,
		"Location": "location1",
		"desktopGR": "MAC"
	}
]

I fixed the jsonfile I forgot to put the whole name.

I previously removed the brackets manually and try to test it using another input (file) but still the same. The message appears has it but it is not storing the objects.

The whole array is ending in the message field.
What exactly will the codec rubydebug will do for the output?