jwtHeaderGetJSON (Function)

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Architecture:

NX32L

Device support:

All

Firmware version:

1.70.00


jwtHeaderGetJSON reads a header from the JWT object as a JSON encoded string

If no header name is provided, the entire header is returned.

 

Input:

jwt : SYSHANDLE

A handle to the JWT object.

 

name : STRING

The name of the header to read. Use an empty string to get the entire header.

 

Output:

value : STRING

The value of the header.

 

 

 

Returns: INT

1

- Success

0

- Function is not supported.

-1

- Invalid name.

-2

- Could not find JWT object.

-4

- Could not find header.

 

 

Declaration:

FUNCTION jwtHeaderGetJSON : INT;
VAR_INPUT
  jwt   : SYSHANDLE;
  name  : STRING;
  value : ACCESS STRING;
END_VAR;

 

 

Example:

INCLUDE rtcu.inc
 
PROGRAM test;
VAR
  rc  : INT;
  str : STRING;
  jwt : SYSHANDLE;
END_VAR;
 
BEGIN
  ...
  // Read header
  rc := jwtHeaderGetJSON(jwt := jwt, name := "map", value := str);
  ...
END;
 
END_PROGRAM;