Hi There

Apologies in advance, this is probably something obvious as I am not used to calling REST API's. I have written code based on the examples given in application techniques. The situation is that the code works sometimes but not others.

Here is a log of attempts:

ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
File Bugfile.PDF created with size of 14987833
ProcessedBugfile.PDF Length 66 {"data":[],"errors":["No Session exists for Access Token. (401)"]}
File Bugfile.PDF created with size of 14987833

So 2 in 12 times the code  below worked fine.

If anyone would like to test it themselves I can send the clientid and client secret separately. 

Maybe I have something misspelt or missed somehow.. But sometimes it works!

The URL works fine in Postman every time. I have tried to copy all the settings from Postman but...

I would really appreciate some assistance here as I have been looking at this for days.

OAuthClient loac_Client
TokenRequest ltr_Request
TokenResponse ltr_Response
HttpClient lhc_Client
String ls_TokenType,ls_accesstoken2
String ls_Body, ls_type, ls_description, ls_uri, ls_state, ls_Url
Long ll_return,ll_count

Long ll_FileNum, ll_rtn, ll_loop, ll_len
Dec{0} ldc_Count, ldc_Length
Blob lb_temp
String ls_response, ls_Length

loac_Client = Create OAuthClient
lhc_Client = Create HttpClient
//Step 1: Get the RESTful server access token.

ltr_Request.tokenlocation = "https://training.simpli.org.nz/api/oauth/v1/oauth2-token"
ltr_Request.Method = "POST"
ltr_Request.secureprotocol = 0
ltr_Request.clientid = "xxxxxxxxxxxxxxxxxxxx"
ltr_Request.clientsecret = "xxxxxxxxxxxxxx"
ltr_Request.UserName = "username"
ltr_Request.Password = "password123"
ltr_Request.scope = "testcode"
ltr_Request.granttype = "client_credentials"
ltr_request.setheader("content-type", "application/json; charset=utf-8")
//ltr_request.setheader("Transfer-Encoding", "chunked")
ltr_request.setheader("Connection", "keep-alive")
ltr_request.setheader("Strict-Transport-Security","max-age=31536000")
ltr_request.setheader("Content-Security-Policy","upgrade-insecure-requests;")
ltr_request.setheader("Pragma","no-cache")
ltr_Request.setheader("X-Content-Type-Options","nosniff")
ltr_request.setheader("Cache-Control","no-store, no-cache, must-revalidate")
ltr_request.setheader("Set-Cookie","app_session=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/")

ll_Return = loac_Client.AccessToken( ltr_Request, ltr_Response )
If ll_Return = 1 and ltr_Response.GetStatusCode () = 200 Then
ls_AccessToken2 = ltr_Response.GetAccessToken()
ls_TokenType = ltr_Response.GetTokenType( )

lhc_Client = Create HttpClient

ls_url = "https://training.simpli.org.nz/api/go/1.0/submission_file/submission_doc_guid-f8e75d7a-e725-7974-e576-adddd019bd57"
lhc_Client.ClearRequestHeaders()
lhc_Client.SetRequestHeader( "Authorization", ls_TokenType + " " + ls_AccessToken2)
lhc_Client.SetRequestHeader("Accept-Encoding", "gzip, deflate, br")
lhc_Client.SetRequestHeader("Connection", "keep-alive")
lhc_Client.SetRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate")
lhc_Client.SetRequestHeader("Strict-Transport-Security","max-age=31536000")
lhc_Client.SetRequestHeader("Vary","Authorization")
lhc_Client.SetRequestHeader("Content-Security-Policy","upgrade-insecure-requests;")
lhc_Client.SetRequestHeader("Content-Transfer-Encoding","binary")

// Not to read data automatically after sending request (default is true)
lhc_Client.autoreaddata = false

ll_rtn = lhc_Client.sendrequest( "GET", ls_url )
//Receive 16KB data every time
ll_loop = 1024 * 16
string ls_filename
ls_filename = 'Bugfile.PDF'
//Write data to the file, because the blob variable is not suitable for large data
ll_FileNum = FileOpen(ls_filename, StreamMode!, Write!, LockWrite!, Replace!)
string ls_lastwritten
Do While ( ll_rtn = 1 )
lb_temp = Blob ( "" )
ll_rtn = lhc_Client.ReadData( lb_temp, ll_loop)
if ll_rtn = 0 then exit
if ll_rtn = -1 then exit

FileWrite(ll_FileNum, lb_temp)
ls_lastwritten = string(lb_temp,EncodingUTF8!)
yield()
Loop

FileClose(ll_FileNum)
if filelength(ls_filename) < 2000 then
MLE_1.text += '~r~nProcessed'+ls_filename+' Length '+string(filelength(ls_filename))+' '+ls_lastwritten

else
mle_1.text += '~r~nFile '+ls_filename+' created with size of '+string(filelength(ls_filename))
end if
If IsValid ( lhc_Client ) Then Destroy ( lhc_Client )
else
string ls_bodyresp
ltr_response.getbody(ls_bodyresp)
mle_1.text = 'Return: '+string(ll_return)+ ' Status Code: '+string( ltr_Response.GetStatusCode () )+ls_bodyresp
end if