Lianja Requires Chilkat v11.0.0+

Facebook Upload Photo from Local File

See more Facebook Examples

Uploads a new photo with a caption from a local file. Lianja

llSuccess = .F.

//  This example assumes Chilkat HTTP to have been previously unlocked.
//  See Global Unlock Sample for sample code.

loHttp = createobject("CkHttp")

loReq = createobject("CkHttpRequest")
loReq.HttpVerb = "POST"
loReq.ContentType = "multipart/form-data"
loReq.Path = "/v2.7/me/photos"

//  Use the previously obtained access token.
//  Note: The publish_actions scope is required to upload a photo.
loReq.AddHeader("Authorization","Bearer FACEBOOK-ACCESS-TOKEN")

//  Send an "Expect: 100-continue" header in the request.
//  This causes the HTTP server to end a 100-continue response
//  immediately after receiving the HTTP header.  The client
//  (Chilkat) will receive this intermediate response, and if
//  it's not an error response, it knows that the HTTP server will
//  accept the data that is forthcoming.
//  The alternative is to get an error response after trying to upload
//  the entire contents of the files.
loReq.AddHeader("Expect","100-continue")

//  Set a photo caption.
loReq.AddParam("caption","Here are some penguins!")

//  Additional parameters can be added to the request by 
//  calling AddParam once per parameter.  
//  See https://developers.facebook.com/docs/graph-api/reference/user/photos
//  for more information about other optional parameters.

//  Indicate the local file to be uploaded.
llSuccess = loReq.AddFileForUpload("source","qa_data/jpg/penguins2.jpg")
if (llSuccess = .F.) then
    ? loReq.LastErrorText
    release loHttp
    release loReq
    return
endif

//  Upload the image file..
loResp = createobject("CkHttpResponse")
llSuccess = loHttp.HttpSReq("graph.facebook.com",443,.T.,loReq,loResp)
if (llSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loReq
    release loResp
    return
endif

//  Examine the response body:
lcResponseJson = loResp.BodyStr
? lcResponseJson

//  The response contains JSON, such as this:
//  {"id":"10210224963435862","post_id":"10224048320139890_10210224963435862"}


release loHttp
release loReq
release loResp