(PowerShell) Read a Single Facebook Post

Demonstrates how to read the contents of a single Facebook post. A post is an individual entry in a profile's feed. The profile could be a user, page, app, or group.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# This example assumes a previously obtained an access token
$oauth2 = New-Object Chilkat.OAuth2
$oauth2.AccessToken = "FACEBOOK-ACCESS-TOKEN"

$rest = New-Object Chilkat.Rest

# Connect to Facebook...
$success = $rest.Connect("graph.facebook.com",443,$true,$true)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

# Provide the authentication credentials (i.e. the access key)
$rest.SetAuthOAuth2($oauth2)

# This example assumes a post id was already retrieved.
# For example, it could've been retrieved by reading the user's feed:
# See Parsing the Facebook User Feed for code showing how to parse the JSON feed content.

$postId = "10224048320139890_10210156138515282"

$sbPath = New-Object Chilkat.StringBuilder
$sbPath.Append("/v2.7/")
$sbPath.Append($postId)

# Select the fields we want.
# This example will select almost all the possible fields.
# See https://developers.facebook.com/docs/graph-api/reference/post/
$rest.AddQueryParam("fields","id,message,created_time,caption,description,from,link,name,object_id,picture,place,privacy,properties,shares,source,status_type,story,targeting,to,type,updated_time,with_tags")

$responseJson = $rest.FullRequestNoBody("GET",$sbPath.GetAsString())
if ($rest.LastMethodSuccess -ne $true) {
    $($rest.LastErrorText)
    exit
}

$json = New-Object Chilkat.JsonObject
$json.EmitCompact = $false
$json.Load($responseJson)

# Show the JSON in human-readable format.
$($json.Emit())

# A sample JSON response is shown here.  
# { 
#   "id": "12345678901234567_12345678900000004",
#   "message": "Ignore my posts -- I'm doing some testing for Facebook related programming...",
#   "created_time": "2016-09-29T20:46:18+0000",
#   "from": { 
#     "name": "John Doe",
#     "id": "12345678901234567"
#   },
#   "link": "https:\/\/www.facebook.com\/photo.php?fbid=10210199026247451&set=a.1237223526054.2038240.1094202869&type=3",
#   "object_id": "10210139026347451",
#   "picture": "https:\/\/scontent.xx.fbcdn.net\/v\/t1.0-9\/14462791_10210199026647451_7830642117574407060_n.jpg?oh=a7f9ed10ce9cd81a82adeb541c60e2e2&oe=58ABB195",
#   "privacy": { 
#     "allow": "",
#     "deny": "",
#     "description": "Public",
#     "friends": "",
#     "value": "EVERYONE"
#   },
#   "status_type": "added_photos",
#   "type": "photo",
#   "updated_time": "2016-09-29T20:46:18+0000"
# }

# This is the code to parse some fields in the JSON response.
$("type: " + $json.StringOf("type"))
$("message: " + $json.StringOf("message"))
$("id: " + $json.StringOf("id"))
$("link: " + $json.StringOf("link"))
$("privacy descripton: " + $json.StringOf("privacy.description"))

$dtime = New-Object Chilkat.CkDateTime
$bLocalTime = $true
$dtime.SetFromTimestamp($json.StringOf("created_time"))
$dt = $dtime.GetDtObj($bLocalTime)
$([string]$dt.Month + "/" + $dt.Day + "/" + $dt.Year + "  " + $dt.Hour + ":" + $dt.Minute)