.. index:: single: s3_headers
.. _s3_headers/0:

.. rst-class:: right

**object**

``s3_headers``
==============

Helpers for extracting S3 response metadata from normalized HTTP responses.

| **Availability:** 
|    ``logtalk_load(s3(loader))``

| **Author:** Paulo Moura
| **Version:** 1:0:0
| **Date:** 2026-07-09

| **Compilation flags:**
|    ``static, context_switching_calls``


| **Uses:**
|    :ref:`http_core <http_core/0>`

| **Remarks:**
|    (none)

| **Inherited public predicates:**
|    (none)

.. contents::
   :local:
   :backlinks: top

Public predicates
-----------------

.. index:: response_properties/2
.. _s3_headers/0::response_properties/2:

``response_properties/2``
^^^^^^^^^^^^^^^^^^^^^^^^^

Collects status and response headers into a stable property list.

| **Compilation flags:**
|    ``static``

| **Template:**
|    ``response_properties(Response,Properties)``
| **Mode and number of proofs:**
|    ``response_properties(+compound,-list(compound))`` - ``one_or_error``

| **Exceptions:**
|    ``Response`` is not a normalized HTTP response term:
|        ``domain_error(http_response,Response)``


------------

.. index:: header_value/3
.. _s3_headers/0::header_value/3:

``header_value/3``
^^^^^^^^^^^^^^^^^^

Enumerates response header values by normalized header name.

| **Compilation flags:**
|    ``static``

| **Template:**
|    ``header_value(Response,Name,Value)``
| **Mode and number of proofs:**
|    ``header_value(+compound,+atom,-term)`` - ``zero_or_more``

| **Exceptions:**
|    ``Response`` is not a normalized HTTP response term:
|        ``domain_error(http_response,Response)``


------------

Protected predicates
--------------------

(no local declarations; see entity ancestors if any)

Private predicates
------------------

(no local declarations; see entity ancestors if any)

Operators
---------

(none)