Swift

Get Individual Photo Info

See more Facebook Examples

Assuming we have the ID of a Photo, this example demonstrates how to retrieve the photo information and parse the JSON. Swift

func chilkatTest() {
    var success: Bool = false

    // 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...
    success = rest.connect(hostname: "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(authProvider: oauth2)

    // Assumes we've already obtained a Photo ID.
    var photoId: String? = "10210199026347451"

    let sbPath = CkoStringBuilder()!
    sbPath.append(value: "/v2.7/")
    sbPath.append(value: photoId)

    // Select the fields we want.
    // This example will select many of the possible fields.
    // See https://developers.facebook.com/docs/graph-api/reference/photo/
    rest.addQueryParam(name: "fields", value: "id,album,can_delete,can_tag,from,height,width,images,link,name,name_tags,picture,place,target")

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

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

    // Show the JSON in human-readable format.
    print("\(json.emit()!)")

    // A sample response is shown below.
    // Demonstrate how to parse values from the JSON.
    print("Album name: \(json.string(of: "album.name")!)")
    var canDelete: Bool = json.bool(of: "can_delete")
    print("Can Delete: \(canDelete)")
    print("From Name: \(json.string(of: "from.name")!)")
    var height: Int = json.int(of: "height").intValue
    var width: Int = json.int(of: "width").intValue
    print("Dimensions: \(width)x\(height)")
    print("First Image Source: \(json.string(of: "images[0].source")!)")

    // A sample JSON response is shown here.  
    // { 
    //   "id": "10210199026347451",
    //   "album": { 
    //     "created_time": "2009-10-19T00:06:46+0000",
    //     "name": "Timeline Photos",
    //     "id": "1237223526054"
    //   },
    //   "can_delete": true,
    //   "can_tag": true,
    //   "from": { 
    //     "name": "Matt Smith",
    //     "id": "10224048320139890"
    //   },
    //   "height": 120,
    //   "width": 120,
    //   "images": [
    //     { 
    //       "height": 120,
    //       "source": "https:\/\/scontent.xx.fbcdn.net\/v\/t1.0-9\/14462791_10210199026347451_7830642117574407060_n.jpg?oh=a7f9ed10cf9cd81a82adeb541c60e2e2&oe=58ABB195",
    //       "width": 120
    //     }
    //   ],
    //   "link": "https:\/\/www.facebook.com\/photo.php?fbid=10210199026347451&set=a.1237223526054.2038240.1093202869&type=3",
    //   "name": "Ignore my posts -- I'm doing some testing for Facebook related programming...",
    //   "picture": "https:\/\/scontent.xx.fbcdn.net\/v\/t1.0-9\/14462791_10210199026347451_7830642117574407060_n.jpg?oh=a7f9ed10cf9cd81a82adeb541c60e2e2&oe=58ABB195"
    // }
    // 

}