httpResponseCode ( responseHeaders )

Retrieves the last HTTP Response Code from the Response Headers

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Andrew Duncan - Show more from this author
Databuzz
https://www.databuzz.com.au

Sample input:

httpResponseCode ( "HTTP/1.1 200 OK
Date: Wed, 13 Jun 2018 04:45:17 GMT
Server: Apache/2.4.26 (Red Hat)
X-Powered-By: PHP/5.6.35
Transfer-Encoding: chunked
Content-Type: application/json; charset=UTF-8" )

Sample output:

200

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

       //  SYNTAX:   httpResponseCode ( responseHeaders )
      //   ORIGIN:   http://www.databuzz.com.au
     //    NOTES:    Retrieves the last HTTP Response Code from the Response Headers
    //     VERSION:   1.0v1 
   //      © 2018 Andrew Duncan, Databuzz, Sydney, Australia
  //	    For a list of HTTP Response Codes see:
 // 	    https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
//	    Requires the Trim4 custom function

Let ( [ 
	t1 = responseHeaders ; 
	t2 = Trim4 ( t1 ) ; 

	n1 = Length ( t2 ) ;

	z1 = PatternCount ( t2 ; "¶¶" ) ;
	z2 = Position ( t2 ; "¶¶" ; n1 ; -1 );

	r1 = GetValue ( t2 ; 1 ) ; 
	r2 = Substitute ( t2 ; " " ; "¶" ) 

] ; 

Case ( 
	z1 ≥ 1 ; Middle ( t2 ; z2 + 11 ; 3 ) ; 
	GetValue ( r2 ; 2 ) // default result
) // Case


) // Let

When working with APIs you often need to check the HTTP Response Code to confirm the request was successful. By passing in the Response Headers from your HTTP request this function will return the last response code found in the Response Headers. For example when using the native cURL options in FileMaker Pro v16 and later:

" --dump-header $responseHeaders"

If more than one response code is returned it will return the last response code from the Response Headers.

N.B. this function requires the Trim4 custom function

Comments

		Daniel Feb 5, 2021
Thanks this was a quick fix when I started encountering multiple HTTP response codes.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

httpResponseCode ( responseHeaders )

Comments

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