All data sent through the URL should be URL encoded. For example the character “/” will be represented as “%2F” in a URL encoded string.

Visit Wikipedia or W3Schools for more information about URL encoding.

All data in the requests and responses shall be HTML encoded and using UTF-8 encoding.

Read more about UTF-8 on Wikipedia.

Date and time should be formatted as the following examples.

Date: 2014-12-01

Date and time: 2014-12-01 09:30:00

List including characters that are valid:

Match a single character present in the list below
[\p{L}\’\\\x{0308}\x{030a}a-zåäöéáœæøüA-ZÅÄÖÉÁÜŒÆØ0-9 –:\.`´’,;\^¤#%§£$€¢¥©™°&\/\(\)=\+\-\*_\!?²³®½\@\x{00a0}\n\r]*

^ asserts position at start of the string
* Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\p{L} matches any kind of letter from any language
\’ matches the character ‘ literally (case sensitive)
\\ matches the character \ literally (case sensitive)
\x{0308} matches the character ̈ with index 30816 (77610 or 14108) literally (case sensitive)
\x{030a} matches the character ̊ with index 30A16 (77810 or 14128) literally (case sensitive)
a-z a single character in the range between a (ASCII 97) and z (ASCII 122) (case sensitive)
åäöéáœæøü matches a single character in the list åäöéáœæøü (case sensitive)
A-Z a single character in the range between A (ASCII 65) and Z (ASCII 90) (case sensitive)
ÅÄÖÉÁÜŒÆØ matches a single character in the list ÅÄÖÉÁÜŒÆØ (case sensitive)
0-9 a single character in the range between 0 (ASCII 48) and 9 (ASCII 57) (case sensitive)
–: matches a single character in the list  –: (case sensitive)
\. matches the character . literally (case sensitive)
`´’,; matches a single character in the list `´’,; (case sensitive)
\^ matches the character ^ literally (case sensitive)
¤#%§£$€¢¥©™°& matches a single character in the list ¤#%§£$€¢¥©™°& (case sensitive)
\/ matches the character / literally (case sensitive)
\( matches the character ( literally (case sensitive)
\) matches the character ) literally (case sensitive)
= matches the character = literally (case sensitive)
\+ matches the character + literally (case sensitive)
\- matches the character – literally (case sensitive)
\* matches the character * literally (case sensitive)
_ matches the character _ literally (case sensitive)
\! matches the character ! literally (case sensitive)
?²³®½ matches a single character in the list ?²³®½ (case sensitive)
\@ matches the character @ literally (case sensitive)
\x{00a0} matches the character  with index A016 (16010 or 2408) literally (case sensitive)
\n matches a line-feed (newline) character (ASCII 10)
\r matches a carriage return (ASCII 13)
$ asserts position at the end of the string, or before the line terminator right at the end of the string (if any)