https://twitter.com/aetos382/status/1125630148617822208

vs-market-place-api.ps1

$url = 'https://marketplace.visualstudio.com/_apis/public/gallery/extensionquery'

$headers = @{
    'Content-Type' = 'application/json; charset=utf-8'
    'Accept' = 'application/json; charset=utf-8; api-version=3.2-preview.1'
    'User-Agent' = 'VSIDE-16.0.28803.352'
}

$body = @{
    flags = 262
    filters = @(
        @{
            criteria = @(
                @{
                    filterType = 14
                    value = '1033'
                },
                @{
                    filterType = 14
                    value = '1041'
                },
                @{
                    filterType = 15
                    value = '16.0.28803.352'
                },
                @{
                    filterType = 8
                    value = 'Microsoft.VisualStudio.Pro'
                },
                @{
                    filterType = 8
                    value = 'Microsoft.VisualStudio.Community'
                }
            )

            sortBy = 4
            sortOrder = 2
            pageSize = 25
            pageNumber = 1
        }
    )
}

$bodyJson = ConvertTo-Json -InputObject $body -Depth 100
$bodyJson

$response = Invoke-RestMethod -Uri $url -Method Post -Headers $headers -Body $bodyJson
$response

vs-marketplace-api.json

{
    "flags": "262",
    "filters": [
        {
            "criteria": [
                {
                    "filterType": "14",
                    "value": "1041"
                },
                {
                    "filterType": "15",
                    "value": "16.0.28803.352"
                },
                {
                    "filterType": "8",
                    "value": "Microsoft.VisualStudio.Pro"
                },
                {
                    "filterType": "8",
                    "value": "Microsoft.VisualStudio.Community"
                },
                {
                    "filterType": "8",
                    "value": "Microsoft.VisualStudio.IntegratedShell"
                }
            ],
            "sortBy": "4",
            "sortOrder": "2",
            "pageSize": "25",
            "pageNumber": "1"
        }
    ]
}