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Topic: CORS/AJAX with fpHTTPap Lazarus (Read 4333 times)
automacaosamos
New Member
Posts: 21
CORS/AJAX with fpHTTPap Lazarus
«
on:
November 22, 2021, 04:27:45 pm »
Could you help me with an example of an API using:
fphttpapp, httpdefs, httproute, fpjson
that implements CORS to receive AJAX requests ??
thanks
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Leledumbo
Hero Member
Posts: 8757
Programming + Glam Metal + Tae Kwon Do = Me
Re: CORS/AJAX with fpHTTPap Lazarus
«
Reply #1 on:
December 07, 2021, 05:49:41 am »
fpjson not required. CORS is implemented as a HTTP OPTIONS handler, so practically just:
Code: Pascal
[Select]
[+]
[-]
procedure
Whatever
(
ARequest
:
TRequest
;
AResponse
:
TResponse
)
;
var
Origin
:
String
;
begin
if
ARequest
.
Method
=
'OPTIONS'
then
begin
// handle CORS request
// normally, you would check the sent ORIGIN header, to see who sent the request
Origin
:
=
HttpRequest
.
GetCustomHeader
(
'Origin'
)
;
// for instance, you only allow it from your own domain
if
Origin
=
'myowndomain.com'
then
begin
// send the header that allows it to request
AResponse
.
SetCustomHeader
(
'Access-Control-Allow-Origin'
,
Origin
)
;
// or if you allow it from anywhere, use '*' instead of Origin
end
;
end
;
end
;
begin
HTTPRouter
.
RegisterRoute
(
'/'
,
@
Whatever
)
;
end
.
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)
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