(Swift 3,4,5...) 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 Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // 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
    let oauth2 = CkoOAuth2()!
    oauth2.accessToken = "FACEBOOK-ACCESS-TOKEN"

    let rest = CkoRest()!

    // Connect to Facebook...
    var success: Bool = rest.connect("graph.facebook.com", port: 443, tls: true, autoReconnect: true)
    if success != true {
        print("\(rest.lastErrorText!)")
        return
    }

    // 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.

    var postId: String? = "10224048320139890_10210156138515282"

    let sbPath = CkoStringBuilder()!
    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", value: "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")

    var responseJson: String? = rest.fullRequestNoBody("GET", uriPath: sbPath.getAsString())
    if rest.lastMethodSuccess != true {
        print("\(rest.lastErrorText!)")
        return
    }

    let json = CkoJsonObject()!
    json.emitCompact = false
    json.load(responseJson)

    // Show the JSON in human-readable format.
    print("\(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.
    print("type: \(json.string(of: "type")!)")
    print("message: \(json.string(of: "message")!)")
    print("id: \(json.string(of: "id")!)")
    print("link: \(json.string(of: "link")!)")
    print("privacy descripton: \(json.string(of: "privacy.description")!)")

    let dtime = CkoDateTime()!
    var bLocalTime: Bool = true
    dtime.setFromTimestamp(json.string(of: "created_time"))
    var dt: CkoDtObj? = dtime.getDtObj(bLocalTime)
    print("\(dt!.month.intValue)/\(dt!.day.intValue)/\(dt!.year.intValue)  \(dt!.hour.intValue):\(dt!.minute.intValue)")
    dt = nil

}