(Go) Get Individual Photo Info

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

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    // 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 := chilkat.NewOAuth2()
    oauth2.SetAccessToken("FACEBOOK-ACCESS-TOKEN")

    rest := chilkat.NewRest()

    // Connect to Facebook...
    success := rest.Connect("graph.facebook.com",443,true,true)
    if success != true {
        fmt.Println(rest.LastErrorText())
        oauth2.DisposeOAuth2()
        rest.DisposeRest()
        return
    }

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

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

    sbPath := chilkat.NewStringBuilder()
    sbPath.Append("/v2.7/")
    sbPath.Append(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("fields","id,album,can_delete,can_tag,from,height,width,images,link,name,name_tags,picture,place,target")

    responseJson := rest.FullRequestNoBody("GET",*sbPath.GetAsString())
    if rest.LastMethodSuccess() != true {
        fmt.Println(rest.LastErrorText())
        oauth2.DisposeOAuth2()
        rest.DisposeRest()
        sbPath.DisposeStringBuilder()
        return
    }

    json := chilkat.NewJsonObject()
    json.SetEmitCompact(false)
    json.Load(*responseJson)

    // Show the JSON in human-readable format.
    fmt.Println(*json.Emit())

    // A sample response is shown below.
    // Demonstrate how to parse values from the JSON.
    fmt.Println("Album name: ", *json.StringOf("album.name"))
    canDelete := json.BoolOf("can_delete")
    fmt.Println("Can Delete: ", canDelete)
    fmt.Println("From Name: ", *json.StringOf("from.name"))
    height := json.IntOf("height")
    width := json.IntOf("width")
    fmt.Println("Dimensions: ", width, "x", height)
    fmt.Println("First Image Source: ", *json.StringOf("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"
    // }
    // 

    oauth2.DisposeOAuth2()
    rest.DisposeRest()
    sbPath.DisposeStringBuilder()
    json.DisposeJsonObject()