HTTP Date

HTTP timestamp decoders and encoders complaint to RFC 9110 (HTTP Semantics). It is designed to be used with HTTP Date header field.

The current supported formats for decoding/encoding are as follows:

• IMF(Internet Message Format) date, eg Sun, 06 Nov 1994 08:49:37 GMT
• RFC 850 date, eg Sunday, 06-Nov-94 08:49:37 GMT
• asctime date, eg Sun Nov 6 08:49:37 1994

API usage:

• Decoding and encoding IMF fixdate formatted timestamp values:

# let d = Http_date.decode "Sun, 06 Nov 1994 08:49:37 GMT";;
val d : Ptime.t = <abstr>

# Ptime.to_date_time d ;;
- : Ptime.date * Ptime.time = ((1994, 11, 6), ((8, 49, 37), 0))

# Http_date.encode d ;;
- : string = "Sun, 06 Nov 1994 08:49:37 GMT"

References:

• HTTP RFC 9110, section 5.6.7

Installation

opam install http-date

Using in Dune

Specify the dependency in dune executable or library stanza as follows:

• executable

(executable
  (name hello)
  (libraries http-date))

• library

 (library
   (name hello)
   (libraries http-date))