Xbase++ Requires Chilkat v11.0.0+
Get the Photos for a User

Demonstrates how to get the photos that the user has uploaded.
Chilkat Xbase++ Downloads

Xbase++
LOCAL nSuccess
LOCAL oOauth2
LOCAL oRest
LOCAL cResponseJson
LOCAL oJson
LOCAL oDtime
LOCAL nBLocalTime
LOCAL oDt
LOCAL i
LOCAL nNumItems
LOCAL cName

nSuccess := 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
oOauth2 := CreateObject("Chilkat.OAuth2")
oOauth2:AccessToken := "FACEBOOK-ACCESS-TOKEN"

oRest := CreateObject("Chilkat.Rest")

//  Connect to Facebook.
nSuccess := oRest:Connect("graph.facebook.com", 443, 1, 1)
IF (nSuccess == 0)
    ? oRest:LastErrorText
    oOauth2:destroy()
    oRest:destroy()
    RETURN
ENDIF

//  Provide the authentication credentials (i.e. the access key)
oRest:SetAuthOAuth2(oOauth2)

//  Indicate that we only want the photos the user has personally uploaded.
oRest:AddQueryParam("type", "uploaded")

//  We could limit the number of photos by setting a limit.
oRest: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.
cResponseJson := oRest:FullRequestNoBody("GET", "/v2.7/me/photos")
IF (oRest:LastMethodSuccess == 0)
    ? oRest:LastErrorText
    oOauth2:destroy()
    oRest:destroy()
    RETURN
ENDIF

oJson := CreateObject("Chilkat.JsonObject")
oJson:EmitCompact := 0
oJson:Load(cResponseJson)
? oJson:Emit()

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

oDtime := CreateObject("Chilkat.CkDateTime")
nBLocalTime := 1

oDt := CreateObject("Chilkat.DtObj")
i := 0
nNumItems := oJson:SizeOfArray("data")
DO WHILE i < nNumItems
    oJson:I := i
    ? "--- " + Str(i)
    cName := oJson:StringOf("data[i].name")
    IF (oJson:LastMethodSuccess == 1)
        ? "name: " + cName
    ENDIF

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

    //  We can load the created_time into a CkDateTime...
    oDtime:SetFromTimestamp(oJson:StringOf("data[i].created_time"))
    oDtime:ToDtObj(nBLocalTime, oDt)

    ? Str(oDt:Month) + "/" + Str(oDt:Day) + "/" + Str(oDt:Year) + "  " + Str(oDt:Hour) + ":" + Str(oDt:Minute)
    i := i + 1
ENDDO

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

oOauth2:destroy()
oRest:destroy()
oJson:destroy()
oDtime:destroy()
oDt:destroy()