Visual FoxPro

Get the Photos for a User

See more Facebook Examples

Demonstrates how to get the photos that the user has uploaded. Visual FoxPro

LOCAL lnSuccess
LOCAL loOauth2
LOCAL loRest
LOCAL lcResponseJson
LOCAL loJson
LOCAL loDtime
LOCAL lnBLocalTime
LOCAL loDt
LOCAL i
LOCAL lnNumItems
LOCAL lcName

lnSuccess = 0

* 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
loOauth2 = CreateObject('Chilkat.OAuth2')
loOauth2.AccessToken = "FACEBOOK-ACCESS-TOKEN"

loRest = CreateObject('Chilkat.Rest')

* Connect to Facebook.
lnSuccess = loRest.Connect("graph.facebook.com",443,1,1)
IF (lnSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loOauth2
    RELEASE loRest
    CANCEL
ENDIF

* Provide the authentication credentials (i.e. the access key)
loRest.SetAuthOAuth2(loOauth2)

* Indicate that we only want the photos the user has personally uploaded.
loRest.AddQueryParam("type","uploaded")

* We could limit the number of photos by setting a limit.
loRest.AddQueryParam("limit","5")

* Gets the 1st page of photos. (Not the actual image data, but the information about each photo.)
* See https://developers.facebook.com/docs/graph-api/reference/user/photos/ for more information.
lcResponseJson = loRest.FullRequestNoBody("GET","/v2.7/me/photos")
IF (loRest.LastMethodSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loOauth2
    RELEASE loRest
    CANCEL
ENDIF

loJson = CreateObject('Chilkat.JsonObject')
loJson.EmitCompact = 0
loJson.Load(lcResponseJson)
? loJson.Emit()

* A sample JSON response is shown below.  
* This is the code to parse the JSON response.

loDtime = CreateObject('Chilkat.CkDateTime')
lnBLocalTime = 1

loDt = CreateObject('Chilkat.DtObj')
i = 0
lnNumItems = loJson.SizeOfArray("data")
DO WHILE i < lnNumItems
    loJson.I = i
    ? "--- " + STR(i)
    lcName = loJson.StringOf("data[i].name")
    IF (loJson.LastMethodSuccess = 1) THEN
        ? "name: " + lcName
    ENDIF

    ? "id: " + loJson.StringOf("data[i].id")

    * We can load the created_time into a CkDateTime...
    loDtime.SetFromTimestamp(loJson.StringOf("data[i].created_time"))
    loDtime.ToDtObj(lnBLocalTime,loDt)

    ? STR(loDt.Month) + "/" + STR(loDt.Day) + "/" + STR(loDt.Year) + "  " + STR(loDt.Hour) + ":" + STR(loDt.Minute)
    i = i + 1
ENDDO

* We can get the paging information as follows:
? "URL for next page: " + loJson.StringOf("paging.next")
? "before cursor: " + loJson.StringOf("paging.cursors.before")
? "after cursor: " + loJson.StringOf("paging.cursors.after")

* This is a sample JSON response:
* { 
*   "data": [
*     {
*       "created_time": "2016-09-29T20:46:18+0000",
*       "name": "Ignore my posts -- I'm doing some testing for Facebook related programming...",
*       "id": "10210199026347451"
*     },
*     { 
*       "created_time": "2016-09-19T02:00:42+0000",
*       "id": "10210091531240138"
*     },
*     { 
*       "created_time": "2016-09-19T02:00:42+0000",
*       "id": "10210091520620125"
*     },
*     { 
*       "created_time": "2016-09-19T01:59:46+0000",
*       "name": "I would've went for a swim had it not been for the sign",
*       "id": "10210091522299917"
*     },
*     { 
*       "created_time": "2016-09-12T00:37:35+0000",
*       "id": "10210023316834798"
*     }
*   ],
*   "paging": { 
*     "cursors": { 
*       "before": "MTAyMTAxOTkwMjYzNDc0NTEZD",
*       "after": "MTAyMTAwMjMzMTU4MzQ3OTgZD"
*     },
*     "next": "https:\/\/graph.facebook.com\/v2.7\/10224048320139890\/photos?type=uploaded&limit=5&after=MTAyMTAwMjMzMTU4MzQ3OTgZD"
*   }
* }
* 

RELEASE loOauth2
RELEASE loRest
RELEASE loJson
RELEASE loDtime
RELEASE loDt