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Author
Topic: GoogleAPI with Lazarus (Read 4744 times)
e44
Newbie
Posts: 3
GoogleAPI with Lazarus
«
on:
August 20, 2021, 09:44:45 am »
Hello, I tried the drivedemo in lazarus, it works great to download a file from Googledrive, but I don't know how to upload and create a folder on Googledrive.
Logged
PascalDragon
Hero Member
Posts: 5486
Compiler Developer
Re: GoogleAPI with Lazarus
«
Reply #1 on:
August 26, 2021, 03:14:10 pm »
The
Google*
units directly expose the corresponding API provided by Google. So you best take a look at Google's documentation of the
Drive API
.
Logged
e44
Newbie
Posts: 3
Re: GoogleAPI with Lazarus
«
Reply #2 on:
August 31, 2021, 11:19:53 pm »
Thank you PascalDragon
I made code to upload a text file to my Drive, the file is uploaded but the name is wrong "untitled"
my code
Code: Pascal
[Select]
[+]
[-]
procedure
TMainForm
.
Button4Click
(
Sender
:
TObject
)
;
Var
Request
:
TWebClientRequest
;
Response
:
TWebClientResponse
;
Bound
,
S
,
URL
,
LFN
,
FileName
:
ansiString
;
Resource
:
TFilesResource
;
List
:
TFileList
;
begin
LoadAuthConfig
;
Resource
:
=
Nil
;
try
Resource
:
=
FDriveAPI
.
CreateFilesResource
(
Self
)
;
List
:
=
Resource
.
list
(
'root'
)
;
Request
:
=
FClient
.
WebClient
.
CreateRequest
;
FileName
:
=
'bbb.txt'
;
Bound
:
=
'foo_bar_baz'
;
try
URL
:
=
'https://www.googleapis.com/upload/drive/v3/files?uploadType=media'
;
Request
.
Headers
.
Add
(
'Authorization: Bearer '
+
FClient
.
AuthHandler
.
Session
.
AccessToken
)
;
Request
.
Headers
.
Add
(
'Content-Type: multipart/related; boundary="'
+
Bound
+
'"'
)
;
Request
.
Headers
.
Add
(
'Accept: application/json'
)
;
s
:
=
CRLF
+
'--'
+
Bound
+
CRLF
;
s
:
=
s
+
'Content-Type: application/json; charset=UTF-8'
+
CRLF
;
s
:
=
s
+
'{'
+
CRLF
;
s
:
=
s
+
'"name": "'
+
ExtractFileName
(
FileName
)
+
'"'
+
CRLF
;
s
:
=
s
+
'}'
+
CRLF
;
s
:
=
s
+
'--'
+
bound
+
CRLF
;
s
:
=
s
+
'Content-Type: text/html'
+
CRLF
+
CRLF
;
s
:
=
s
+
'monTexte'
+
CRLF
;
s
:
=
s
+
'--'
+
bound
+
'--'
+
CRLF
;
Request
.
SetContentFromString
(
S
)
;
Request
.
Headers
.
Add
(
'Content-Length: '
+
(
S
.
Length
)
.
ToString
)
;
Response
:
=
FClient
.
WebClient
.
ExecuteSignedRequest
(
'POST'
,
URL
,
Request
)
;
try
Memo1
.
Lines
.
LoadFromStream
(
Response
.
Content
)
;
finally
end
;
finally
Request
.
Free
;
end
;
finally
FreeAndNil
(
Resource
)
;
end
;
end
;
the result is
Code: Pascal
[Select]
[+]
[-]
{
"kind": "drive#file",
"id": "1crNUrKj7buNMyZrfHOgZNtW4BOXWv-6I",
"name": "Untitled",
"mimeType": "text/html"
}
and the request sended is
Code: Pascal
[Select]
[+]
[-]
Authorization
:
Bearer ya30
.
a
....
r2TTGke
Content
-
Type
:
multipart
/
related
;
boundary
=
"foo_bar_baz"
Accept
:
application
/
json
Content
-
Length
:
158
--
foo_bar_baz
Content
-
Type
:
application
/
json
;
charset
=
UTF
-
8
{
"name": "bbb.txt"
}
--
foo_bar_baz
Content
-
Type
:
text
/
html
monTexte
--
foo_bar_baz
--
is there someone see why the filename on drive is always "untitled" ?
«
Last Edit: August 31, 2021, 11:22:36 pm by e44
»
Logged
Leledumbo
Hero Member
Posts: 8757
Programming + Glam Metal + Tae Kwon Do = Me
Re: GoogleAPI with Lazarus
«
Reply #3 on:
September 17, 2021, 07:45:49 am »
From
the docs
, seems like you've done it right. But my question is why you're doing the file creation with raw HTTP request? That Resource object contains Create method that can specify name and other properties.
Logged
Follow this if you want me to answer:
http://wiki.lazarus.freepascal.org/Lazarus_Faq#What_is_the_correct_way_to_ask_questions_in_the_forum.3F
http://pascalgeek.blogspot.com
https://bitbucket.org/leledumbo
https://github.com/leledumbo
Code first, think later - Natural programmer B)
e44
Newbie
Posts: 3
Re: GoogleAPI with Lazarus
«
Reply #4 on:
September 19, 2021, 04:50:58 pm »
thank you Leledumbo
yes the Resource object should create a path or a file, I tried but couldn't find a correct solution. And I didn't find any example on the internet.
I continue my search.
Logged
mgc
New Member
Posts: 13
Re: GoogleAPI with Lazarus
«
Reply #5 on:
May 17, 2022, 05:04:04 pm »
Hello, e44.
Have you found any solution?
I still looking for a way to upload a file using Drive API.
Thanks,
Maurício Camargo
Logged
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