How to determine HTTP method?

[joarb]

I'm having trouble differentiating between GET and POST requests to the cloud. Here's my clouds main method:

Code: Select all

1. function main( web, req )


2.   local mehtod = web:method ( )


3.   if ( method == GET ) then


4.     web:page ( "Get.", 200, "OK" )


5.   elseif ( method == POST ) then


6.     web:page ( "Post.", 200, "OK" )


7.   end


8. end

However, I do not know the proper named constants (if any) to be used in place of GET and POST. How can I get the conditional to catch a POST request? Thanks!

[rob]

You should be able to use the string "GET" or "POST". The above code is probably comparing the method to nil since GET or POST haven't been defined as constants.

[joarb]

Ahhh, so close. I did try to return the value of web:method ( ) to the caller (using web:page ( ) ), but it crashed. I guess there was another problem with the script as well causing the crash. That's why I concluded that web:method ( ) wasn't a string. Anyways, thanks again Rob!

[joarb]

I guess I was a little too quick in my last post. Tried to return method to caller like so:

Code: Select all

1. function main( web, req )


2.   local mehtod = web:method ( )


3.   web:page ( method, 200, "OK" )


4. end

but all I get is

Error

bad argument #1 to 'length' (string expected, got nil)
Stack Trace

1 C function
2[(tail call)]:-1
3[[string "main.lua"]]:130
4[(tail call)]:-1
5 C function
6 C function
7 C function

Apparently, somethings wrong with the above code. Do anyone know how to get this to work?

[rob]

That is a bug in the tir framework that happens if there is an empty or nil body. It's something I've been meaning to patch for a while.

In the code above you have a typo, ou assign the value to 'mehtod' but you are sending 'method' to web:page. Just yesterday we added a 'Strict Mode' to the cloud that would help to catch typo errors like these. You can turn it on in the edit service page.

[joarb]

Wow - sorry about bugging you with typos (I've set my application to 'Strict Mode' now). Thanks!