latest output from v4

src/DCarbone/PHPFHIRGenerated/Autoloader.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  * 
@@ -76,14 +76,12 @@ abstract class Autoloader
         'DCarbone\PHPFHIRGenerated\Client\UnexpectedResponseCodeException' => __DIR__ . '/Client/UnexpectedResponseCodeException.php',
         'DCarbone\PHPFHIRGenerated\Client\HTTPMethodEnum' => __DIR__ . '/Client/HTTPMethodEnum.php',
         'DCarbone\PHPFHIRGenerated\Client\Config' => __DIR__ . '/Client/Config.php',
-        'DCarbone\PHPFHIRGenerated\Client\ResponseFormatEnum' => __DIR__ . '/Client/ResponseFormatEnum.php',
         'DCarbone\PHPFHIRGenerated\Client\ClientErrorException' => __DIR__ . '/Client/ClientErrorException.php',
-        'DCarbone\PHPFHIRGenerated\VersionEnum' => __DIR__ . '/VersionEnum.php',
+        'DCarbone\PHPFHIRGenerated\FHIRVersion' => __DIR__ . '/FHIRVersion.php',
         'DCarbone\PHPFHIRGenerated\Types\PrimitiveContainerTypeInterface' => __DIR__ . '/Types/PrimitiveContainerTypeInterface.php',
-        'DCarbone\PHPFHIRGenerated\Types\DSTU1PrimitiveContainerTypeInterface' => __DIR__ . '/Types/DSTU1PrimitiveContainerTypeInterface.php',
+        'DCarbone\PHPFHIRGenerated\Types\ResourceIDTypeInterface' => __DIR__ . '/Types/ResourceIDTypeInterface.php',
         'DCarbone\PHPFHIRGenerated\Types\ValueContainerTrait' => __DIR__ . '/Types/ValueContainerTrait.php',
         'DCarbone\PHPFHIRGenerated\Types\ValueContainerTypeInterface' => __DIR__ . '/Types/ValueContainerTypeInterface.php',
-        'DCarbone\PHPFHIRGenerated\Types\DSTU1TypeInterface' => __DIR__ . '/Types/DSTU1TypeInterface.php',
         'DCarbone\PHPFHIRGenerated\Types\TypeInterface' => __DIR__ . '/Types/TypeInterface.php',
         'DCarbone\PHPFHIRGenerated\Types\SourceXMLNamespaceTrait' => __DIR__ . '/Types/SourceXMLNamespaceTrait.php',
         'DCarbone\PHPFHIRGenerated\Types\CommentContainerTrait' => __DIR__ . '/Types/CommentContainerTrait.php',
@@ -113,6 +111,7 @@ abstract class Autoloader
         'DCarbone\PHPFHIRGenerated\Encoding\XMLSerializationOptionsTrait' => __DIR__ . '/Encoding/XMLSerializationOptionsTrait.php',
         'DCarbone\PHPFHIRGenerated\Encoding\XMLWriter' => __DIR__ . '/Encoding/XMLWriter.php',
         'DCarbone\PHPFHIRGenerated\Encoding\UnserializeConfig' => __DIR__ . '/Encoding/UnserializeConfig.php',
+        'DCarbone\PHPFHIRGenerated\Encoding\SerializeFormatEnum' => __DIR__ . '/Encoding/SerializeFormatEnum.php',
     ];
 
     private static bool $_registered = false;

src/DCarbone/PHPFHIRGenerated/Client/AbstractClientException.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  * 

src/DCarbone/PHPFHIRGenerated/Client/Client.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  * 
@@ -26,6 +26,9 @@
  * 
  */
 
+use DCarbone\PHPFHIRGenerated\Encoding\SerializeFormatEnum;
+use DCarbone\PHPFHIRGenerated\FHIRVersion;
+use DCarbone\PHPFHIRGenerated\Types\ResourceTypeInterface;
 
 /**
  * Class Client
@@ -41,7 +44,7 @@ class Client implements ClientInterface
     private const _BASE_CURL_OPTS = [
         CURLOPT_FOLLOWLOCATION => true,
         CURLOPT_RETURNTRANSFER => true,
-        CURLOPT_USERAGENT => 'php-fhir client (build: February 12th, 2025 19:32+0000;)',
+        CURLOPT_USERAGENT => 'php-fhir client (build: February 22nd, 2025 18:56+0000;)',
     ];
 
     protected Config $_config;
@@ -70,62 +73,66 @@ public function getConfig(): Config
      */
     public function exec(Request $request): Response
     {
-        $queryParams = array_merge($this->_config->getQueryParams(), $request->queryParams ?? []);
-
+        $queryParams = array_merge($this->_config->getDefaultQueryParams(), $request->queryParams ?? []);
         $format = $request->format ?? $this->_config->getDefaultFormat();
-        if (null !== $format) {
-            $queryParams[self::_PARAM_FORMAT] = $format;
-        }
+        $parseResponseHeaders = match(true) {
+            isset($request->parseResponseHeaders) => $request->parseResponseHeaders,
+            default => $this->_config->getParseResponseHeaders(),
+        };
+
+        $queryParams[self::_PARAM_FORMAT] = $format->value;
         if (isset($request->sort)) {
             $queryParams[self::_PARAM_SORT] = $request->sort;
         }
         if (isset($request->count)) {
             $queryParams[self::_PARAM_COUNT] = $request->count;
         }
 
-        $rc = new Response();
-
         $url = "{$this->_config->getAddress()}{$request->path}?" . http_build_query($queryParams, '', '&', PHP_QUERY_RFC3986);
 
-        $curlOpts = self::_BASE_CURL_OPTS
-            + [CURLOPT_CUSTOMREQUEST => $request->method]
-            + array_merge($this->_config->getCurlOpts(), $request->options ?? []);
+        $rc = new Response($request->method, $url, $format);
 
-        $parseResponseHeaders = ($this->_config->getParseResponseHeaders()
-            && (!isset($req->parseResponseHeaders) || $req->parseResponseHeaders))
-            || (isset($req->parseResponseHeaders) && $req->parseResponseHeaders);
+        $curlOpts = self::_BASE_CURL_OPTS + array_merge($this->_config->getCurlOpts(), $request->options ?? []);
 
         if ($parseResponseHeaders) {
+            $rc->headers = new ResponseHeaders();
             $curlOpts[CURLOPT_HEADER] = 1;
             $curlOpts[CURLOPT_HEADERFUNCTION] = function($ch, string $line) use (&$rc): int {
                     return $rc->headers->addLine($line);
                 };
-        } else {
-            $curlOpts[CURLOPT_HEADER] = 0;
+        }
+
+        if (!isset($curlOpts[CURLOPT_HTTPHEADER])) {
+            $curlOpts[CURLOPT_HTTPHEADER] = [];
+        }
+
+        if (HTTPMethodEnum::GET !== $request->method) {
+            $curlOpts[CURLOPT_CUSTOMREQUEST] = $request->method->value;
+            $curlOpts[CURLOPT_HTTPHEADER][] = "X-HTTP-Method-Override: {$request->method->value}";
+        }
+
+        $curlOpts[CURLOPT_HTTPHEADER][] = $this->_buildAcceptHeader($request, $format);
+
+        if (isset($request->resource)) {
+            $curlOpts[CURLOPT_HTTPHEADER][] = $this->_buildContentTypeHeader($request, $format);
         }
 
         $ch = curl_init($url);
         if (!curl_setopt_array($ch, $curlOpts)) {
             throw new \DomainException(sprintf(
-                'Error setting curl opts for query "%s" with value: %s',
+                'curl_setopt_array returned false for "%s" with options: %s',
                 $url,
                 var_export($curlOpts, true),
             ));
         }
 
         $resp = curl_exec($ch);
-        $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-        $err = curl_error($ch);
-        $errno = curl_errno($ch);
+        $rc->code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        $rc->err = curl_error($ch);
+        $rc->errno = curl_errno($ch);
         curl_close($ch);
 
-        $rc->method = $request->method;
-        $rc->url = $url;
-        $rc->code = $code;
-        $rc->err = $err;
-        $rc->errno = $errno;
-
-        if (0 === $errno) {
+        if (0 === $rc->errno) {
             if ($parseResponseHeaders) {
                 $rc->resp = substr($resp, $rc->headers->getLength());
             } else {
@@ -135,4 +142,43 @@ public function exec(Request $request): Response
 
         return $rc;
     }
+
+    protected function _buildAcceptHeader(Request $request,
+                                          SerializeFormatEnum $format): string
+    {
+        $ver = match(true) {
+            isset($request->version) => $request->version,
+            isset($request->resource) => $request->resource->_getFHIRVersion(),
+            default => null,
+        };
+        if (null === $ver) {
+            return "Accept: application/{$format->value}+json, application/json+{$format->value}";
+        } else if ($ver->getFHIRVersionInteger() < FHIRVersion::STU3_MIN_VERSION_INTEGER) {
+            return "Accept: application/{$format->value}+fhir; fhirVersion={$ver->getFHIRShortVersion()}";
+        } else {
+            return "Accept: application/fhir+{$format->value}; fhirVersion={$ver->getFHIRShortVersion()}";
+        }
+    }
+
+    protected function _buildContentTypeHeader(Request $request,
+                                               SerializeFormatEnum $format): string
+    {
+        $ver = $request->resource->_getFHIRVersion();
+        if (HTTPMethodEnum::PATCH === $request->method) {
+            return "Content-Type: application/{$format->value}-patch+{$format->value}; fhirVersion={$ver->getFHIRShortVersion()}";
+        } else if ($ver->getFHIRVersionInteger() < FHIRVersion::STU3_MIN_VERSION_INTEGER) {
+            return "Content-Type: application/{$format->value}+fhir; fhirVersion={$ver->getFHIRShortVersion()}";
+        } else {
+            return "Content-Type: application/fhir+{$format->value}; fhirVersion={$ver->getFHIRShortVersion()}";
+        }
+    }
+
+    protected function _buildBody(ResourceTypeInterface $resource,
+                                  SerializeFormatEnum $format): string
+    {
+        return match ($format) {
+            SerializeFormatEnum::JSON => json_encode($resource),
+            SerializeFormatEnum::XML => $resource->xmlSerialize(config: $this->_version->getConfig()->getSerializeConfig()),
+        };
+    }
 }

src/DCarbone/PHPFHIRGenerated/Client/ClientErrorException.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  * 

src/DCarbone/PHPFHIRGenerated/Client/ClientInterface.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  * 

src/DCarbone/PHPFHIRGenerated/Client/Config.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  * 
@@ -26,6 +26,8 @@
  * 
  */
 
+use DCarbone\PHPFHIRGenerated\Encoding\SerializeFormatEnum;
+
 /**
  * Class Config
  *
@@ -34,35 +36,30 @@
  */
 class Config
 {
-    /** @var string */
     private string $_address;
-    /** @var array */
     private array $_curlOpts;
-    /** @var array */
-    private array $_queryParams;
-    /** @var null|\DCarbone\PHPFHIRGenerated\Client\ResponseFormatEnum */
-    private null|ResponseFormatEnum $_defaultFormat;
-    /** @var bool */
+    private array $_defaultQueryParams;
+    private SerializeFormatEnum $_defaultFormat;
     private bool $_parseResponseHeaders;
 
     /**
      * Config Constructor
      *
      * @param string $address Fully qualified address of FHIR server, including scheme, port, and any path prefix.
-     * @param null|\DCarbone\PHPFHIRGenerated\Client\ResponseFormatEnum $defaultFormat Default format to request from server.  If not provided, server default will be used.  May be overridden by an individual request.
-     * @param array $queryParams Base query parameters array.  These will be added to every request.  May be overridden by an individual request.
+     * @param \DCarbone\PHPFHIRGenerated\Encoding\SerializeFormatEnum $defaultFormat Default serialization format.  Defaults to XML.
+     * @param array $defaultQueryParams Base query parameters array.  These will be added to every request.  May be overridden by an individual request.
      * @param array $curlOpts Base curl options array.  These will be added to every request.  May be overridden by an individual request.
-     * @param bool $parseResponseHeaders Whether or not to parse headers from response.  This adds a small amount of overhead, so it is recommended to only set to true if actually used.
+     * @param bool $parseResponseHeaders Whether or not to parse headers from response.  This adds overhead to parsing each response, but is also necessary to extract response version information.
      */
     public function __construct(string $address,
-                                null|ResponseFormatEnum $defaultFormat = null,
-                                array $queryParams = [],
+                                SerializeFormatEnum $defaultFormat = SerializeFormatEnum::XML,
+                                array $defaultQueryParams = [],
                                 array $curlOpts = [],
-                                bool $parseResponseHeaders = false)
+                                bool $parseResponseHeaders = true)
     {
         $this->_address = $address;
         $this->_defaultFormat = $defaultFormat;
-        $this->_queryParams = $queryParams;
+        $this->_defaultQueryParams = $defaultQueryParams;
         $this->_curlOpts = $curlOpts;
         $this->_parseResponseHeaders = $parseResponseHeaders;
     }
@@ -76,19 +73,19 @@ public function getAddress(): string
     }
 
     /**
-     * @return null|\DCarbone\PHPFHIRGenerated\Client\ResponseFormatEnum
+     * @return \DCarbone\PHPFHIRGenerated\Encoding\SerializeFormatEnum
      */
-    public function getDefaultFormat(): null|ResponseFormatEnum
+    public function getDefaultFormat(): SerializeFormatEnum
     {
         return $this->_defaultFormat;
     }
 
     /**
      * @return array
      */
-    public function getQueryParams(): array
+    public function getDefaultQueryParams(): array
     {
-        return $this->_queryParams;
+        return $this->_defaultQueryParams;
     }
 
     /**

src/DCarbone/PHPFHIRGenerated/Client/HTTPMethodEnum.php

@@ -6,7 +6,7 @@
  * This class was generated with the PHPFHIR library (https://github.com/dcarbone/php-fhir) using
  * class definitions from HL7 FHIR (https://www.hl7.org/fhir/)
  * 
- * Class creation date: February 12th, 2025 19:32+0000
+ * Class creation date: February 22nd, 2025 18:56+0000
  * 
  * PHPFHIR Copyright:
  *