diff --git a/datamodel/low/3.0/callback.go b/datamodel/low/3.0/callback.go
index 726acfc..6bdc27c 100644
--- a/datamodel/low/3.0/callback.go
+++ b/datamodel/low/3.0/callback.go
@@ -1,12 +1,12 @@
 package v3
 
 import (
-    "github.com/pb33f/libopenapi/datamodel/low"
-    "gopkg.in/yaml.v3"
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
 )
 
 type Callback struct {
-    Node       *yaml.Node
-    Expression map[string]Path
-    Extensions map[string]low.ObjectReference
+	Node       *yaml.Node
+	Expression map[string]PathItem
+	Extensions map[string]low.ObjectReference
 }
diff --git a/datamodel/low/3.0/encoding.go b/datamodel/low/3.0/encoding.go
index 9e02917..ecfd6fd 100644
--- a/datamodel/low/3.0/encoding.go
+++ b/datamodel/low/3.0/encoding.go
@@ -1,15 +1,31 @@
 package v3
 
 import (
-    "github.com/pb33f/libopenapi/datamodel/low"
-    "gopkg.in/yaml.v3"
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
+)
+
+const (
+	EncodingLabel = "encoding"
 )
 
 type Encoding struct {
-    Node          *yaml.Node
-    ContentType   low.NodeReference[string]
-    Headers       map[string]Parameter
-    Style         low.NodeReference[string]
-    Explode       low.NodeReference[bool]
-    AllowReserved low.NodeReference[bool]
+	ContentType   low.NodeReference[string]
+	Headers       map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*Header]
+	Style         low.NodeReference[string]
+	Explode       low.NodeReference[bool]
+	AllowReserved low.NodeReference[bool]
+}
+
+func (en Encoding) Build(root *yaml.Node) error {
+
+	headers, err := ExtractMap[*Header](HeadersLabel, root)
+	if err != nil {
+		return err
+	}
+	if headers != nil {
+		en.Headers = headers
+	}
+
+	return nil
 }
diff --git a/datamodel/low/3.0/example.go b/datamodel/low/3.0/example.go
index 4a93622..edc9c86 100644
--- a/datamodel/low/3.0/example.go
+++ b/datamodel/low/3.0/example.go
@@ -1,15 +1,29 @@
 package v3
 
 import (
-    "github.com/pb33f/libopenapi/datamodel/low"
-    "gopkg.in/yaml.v3"
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
+)
+
+const (
+	ExamplesLabel = "examples"
+	ExampleLabel  = "example"
 )
 
 type Example struct {
-    Node          *yaml.Node
-    Summary       low.NodeReference[string]
-    Description   low.NodeReference[string]
-    Value         low.ObjectReference
-    ExternalValue low.NodeReference[string]
-    Extensions    map[string]low.ObjectReference
+	Summary       low.NodeReference[string]
+	Description   low.NodeReference[string]
+	Value         low.NodeReference[any]
+	ExternalValue low.NodeReference[string]
+	Extensions    map[low.KeyReference[string]]low.ValueReference[any]
+}
+
+func (ex Example) Build(root *yaml.Node) error {
+	// extract extensions
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	ex.Extensions = extensionMap
+	return nil
 }
diff --git a/datamodel/low/3.0/external_doc.go b/datamodel/low/3.0/external_doc.go
index 97222e6..5dd4d32 100644
--- a/datamodel/low/3.0/external_doc.go
+++ b/datamodel/low/3.0/external_doc.go
@@ -2,10 +2,21 @@ package v3
 
 import (
 	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
 )
 
 type ExternalDoc struct {
 	Description low.NodeReference[string]
 	URL         low.NodeReference[string]
-	Extensions  map[string]low.ObjectReference
+	Extensions  map[low.KeyReference[string]]low.ValueReference[any]
+}
+
+func (ex *ExternalDoc) Build(root *yaml.Node) error {
+	// extract extensions
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	ex.Extensions = extensionMap
+	return nil
 }
diff --git a/datamodel/low/3.0/extraction_functions.go b/datamodel/low/3.0/extraction_functions.go
new file mode 100644
index 0000000..9eb7647
--- /dev/null
+++ b/datamodel/low/3.0/extraction_functions.go
@@ -0,0 +1,123 @@
+package v3
+
+import (
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"github.com/pb33f/libopenapi/utils"
+	"gopkg.in/yaml.v3"
+	"strconv"
+	"sync"
+)
+
+func ExtractSchema(root *yaml.Node) (*low.NodeReference[*Schema], error) {
+	_, schLabel, schNode := utils.FindKeyNodeFull(SchemaLabel, root.Content)
+	if schNode != nil {
+		var schema Schema
+		err := BuildModel(schNode, &schema)
+		if err != nil {
+			return nil, err
+		}
+		err = schema.Build(schNode, 0)
+		if err != nil {
+			return nil, err
+		}
+		return &low.NodeReference[*Schema]{Value: &schema, KeyNode: schLabel, ValueNode: schNode}, nil
+	}
+	return nil, nil
+}
+
+var mapLock sync.Mutex
+
+func ExtractMap[PT low.Buildable[N], N any](label string, root *yaml.Node) (map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[PT], error) {
+	_, labelNode, valueNode := utils.FindKeyNodeFull(label, root.Content)
+	if valueNode != nil {
+		var currentLabelNode *yaml.Node
+		valueMap := make(map[low.KeyReference[string]]low.ValueReference[PT])
+		for i, en := range valueNode.Content {
+			if i%2 == 0 {
+				currentLabelNode = en
+				continue
+			}
+			var n PT = new(N)
+			err := BuildModel(valueNode, n)
+			if err != nil {
+				return nil, err
+			}
+			berr := n.Build(valueNode)
+			if berr != nil {
+				return nil, berr
+			}
+			valueMap[low.KeyReference[string]{
+				Value:   currentLabelNode.Value,
+				KeyNode: currentLabelNode,
+			}] = low.ValueReference[PT]{
+				Value:     n,
+				ValueNode: en,
+			}
+		}
+
+		resMap := make(map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[PT])
+		resMap[low.KeyReference[string]{
+			Value:   labelNode.Value,
+			KeyNode: labelNode,
+		}] = valueMap
+		return resMap, nil
+	}
+	return nil, nil
+}
+
+func ExtractExtensions(root *yaml.Node) (map[low.KeyReference[string]]low.ValueReference[any], error) {
+	extensions := utils.FindExtensionNodes(root.Content)
+	extensionMap := make(map[low.KeyReference[string]]low.ValueReference[any])
+	for _, ext := range extensions {
+		if utils.IsNodeMap(ext.Value) {
+			var v interface{}
+			err := ext.Value.Decode(&v)
+			if err != nil {
+				return nil, err
+			}
+			extensionMap[low.KeyReference[string]{
+				Value:   ext.Key.Value,
+				KeyNode: ext.Key,
+			}] = low.ValueReference[any]{Value: v, ValueNode: ext.Value}
+		}
+		if utils.IsNodeStringValue(ext.Value) {
+			extensionMap[low.KeyReference[string]{
+				Value:   ext.Key.Value,
+				KeyNode: ext.Key,
+			}] = low.ValueReference[any]{Value: ext.Value.Value, ValueNode: ext.Value}
+		}
+		if utils.IsNodeFloatValue(ext.Value) {
+			fv, _ := strconv.ParseFloat(ext.Value.Value, 64)
+			extensionMap[low.KeyReference[string]{
+				Value:   ext.Key.Value,
+				KeyNode: ext.Key,
+			}] = low.ValueReference[any]{Value: fv, ValueNode: ext.Value}
+		}
+		if utils.IsNodeIntValue(ext.Value) {
+			iv, _ := strconv.ParseInt(ext.Value.Value, 10, 64)
+			extensionMap[low.KeyReference[string]{
+				Value:   ext.Key.Value,
+				KeyNode: ext.Key,
+			}] = low.ValueReference[any]{Value: iv, ValueNode: ext.Value}
+		}
+		if utils.IsNodeBoolValue(ext.Value) {
+			bv, _ := strconv.ParseBool(ext.Value.Value)
+			extensionMap[low.KeyReference[string]{
+				Value:   ext.Key.Value,
+				KeyNode: ext.Key,
+			}] = low.ValueReference[any]{Value: bv, ValueNode: ext.Value}
+		}
+		if utils.IsNodeArray(ext.Value) {
+			var v []interface{}
+			err := ext.Value.Decode(&v)
+			if err != nil {
+				return nil, err
+			}
+			extensionMap[low.KeyReference[string]{
+				Value:   ext.Key.Value,
+				KeyNode: ext.Key,
+			}] = low.ValueReference[any]{Value: v, ValueNode: ext.Value}
+		}
+	}
+	return extensionMap, nil
+}
diff --git a/datamodel/low/3.0/header.go b/datamodel/low/3.0/header.go
new file mode 100644
index 0000000..0324cac
--- /dev/null
+++ b/datamodel/low/3.0/header.go
@@ -0,0 +1,61 @@
+package v3
+
+import (
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
+)
+
+const (
+	HeadersLabel = "headers"
+)
+
+type Header struct {
+	Description     low.NodeReference[string]
+	Required        low.NodeReference[bool]
+	Deprecated      low.NodeReference[bool]
+	AllowEmptyValue low.NodeReference[bool]
+	Style           low.NodeReference[string]
+	Explode         low.NodeReference[bool]
+	AllowReserved   low.NodeReference[bool]
+	Schema          low.NodeReference[*Schema]
+	Example         low.NodeReference[any]
+	Examples        map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*Example]
+	Content         map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*MediaType]
+	Extensions      map[low.KeyReference[string]]low.ValueReference[any]
+}
+
+func (h *Header) Build(root *yaml.Node) error {
+	// extract extensions
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	h.Extensions = extensionMap
+
+	// handle examples if set.
+	exps, eErr := ExtractMap[*Example](ExamplesLabel, root)
+	if eErr != nil {
+		return eErr
+	}
+	if exps != nil {
+		h.Examples = exps
+	}
+
+	// handle schema
+	sch, sErr := ExtractSchema(root)
+	if sErr != nil {
+		return nil
+	}
+	if sch != nil {
+		h.Schema = *sch
+	}
+
+	// handle content, if set.
+	con, cErr := ExtractMap[*MediaType](ContentLabel, root)
+	if cErr != nil {
+		return cErr
+	}
+	h.Content = con
+
+	return nil
+}
diff --git a/datamodel/low/3.0/media_type.go b/datamodel/low/3.0/media_type.go
index 523c384..3a3ed04 100644
--- a/datamodel/low/3.0/media_type.go
+++ b/datamodel/low/3.0/media_type.go
@@ -1,14 +1,59 @@
 package v3
 
 import (
-    "github.com/pb33f/libopenapi/datamodel/low"
-    "gopkg.in/yaml.v3"
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"github.com/pb33f/libopenapi/utils"
+	"gopkg.in/yaml.v3"
 )
 
 type MediaType struct {
-    Node     *yaml.Node
-    Schema   Schema
-    Example  low.ObjectReference
-    Examples map[string]Example
-    Encoding map[string]Encoding
+	Schema     low.NodeReference[*Schema]
+	Example    low.NodeReference[any]
+	Examples   map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*Example]
+	Encoding   map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*Encoding]
+	Extensions map[low.KeyReference[string]]low.ValueReference[any]
+}
+
+func (mt *MediaType) Build(root *yaml.Node) error {
+
+	// extract extensions
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	mt.Extensions = extensionMap
+
+	// handle example if set.
+	_, expLabel, expNode := utils.FindKeyNodeFull(ExampleLabel, root.Content)
+	if expNode != nil {
+		mt.Example = low.NodeReference[any]{Value: expNode.Value, KeyNode: expLabel, ValueNode: expNode}
+	}
+
+	// handle schema
+	sch, sErr := ExtractSchema(root)
+	if sErr != nil {
+		return nil
+	}
+	if sch != nil {
+		mt.Schema = *sch
+	}
+
+	// handle examples if set.
+	exps, eErr := ExtractMap[*Example](ExamplesLabel, root)
+	if eErr != nil {
+		return eErr
+	}
+	if exps != nil {
+		mt.Examples = exps
+	}
+
+	// handle encoding
+	encs, encErr := ExtractMap[*Encoding](EncodingLabel, root)
+	if encErr != nil {
+		return err
+	}
+	if encs != nil {
+		mt.Encoding = encs
+	}
+	return nil
 }
diff --git a/datamodel/low/3.0/model_builder.go b/datamodel/low/3.0/model_builder.go
index 317c48c..9bf4506 100644
--- a/datamodel/low/3.0/model_builder.go
+++ b/datamodel/low/3.0/model_builder.go
@@ -377,60 +377,3 @@ func BuildModelAsync(n *yaml.Node, model interface{}, lwg *sync.WaitGroup, error
 	}
 	lwg.Done()
 }
-
-func ExtractExtensions(root *yaml.Node) (map[low.NodeReference[string]]low.NodeReference[any], error) {
-	extensions := utils.FindExtensionNodes(root.Content)
-	extensionMap := make(map[low.NodeReference[string]]low.NodeReference[any])
-	for _, ext := range extensions {
-		if utils.IsNodeMap(ext.Value) {
-			var v interface{}
-			err := ext.Value.Decode(&v)
-			if err != nil {
-				return nil, err
-			}
-			extensionMap[low.NodeReference[string]{
-				Value:   ext.Key.Value,
-				KeyNode: ext.Key,
-			}] = low.NodeReference[any]{Value: v, KeyNode: ext.Key}
-		}
-		if utils.IsNodeStringValue(ext.Value) {
-			extensionMap[low.NodeReference[string]{
-				Value:   ext.Key.Value,
-				KeyNode: ext.Key,
-			}] = low.NodeReference[any]{Value: ext.Value.Value, ValueNode: ext.Value}
-		}
-		if utils.IsNodeFloatValue(ext.Value) {
-			fv, _ := strconv.ParseFloat(ext.Value.Value, 64)
-			extensionMap[low.NodeReference[string]{
-				Value:   ext.Key.Value,
-				KeyNode: ext.Key,
-			}] = low.NodeReference[any]{Value: fv, ValueNode: ext.Value}
-		}
-		if utils.IsNodeIntValue(ext.Value) {
-			iv, _ := strconv.ParseInt(ext.Value.Value, 10, 64)
-			extensionMap[low.NodeReference[string]{
-				Value:   ext.Key.Value,
-				KeyNode: ext.Key,
-			}] = low.NodeReference[any]{Value: iv, ValueNode: ext.Value}
-		}
-		if utils.IsNodeBoolValue(ext.Value) {
-			bv, _ := strconv.ParseBool(ext.Value.Value)
-			extensionMap[low.NodeReference[string]{
-				Value:   ext.Key.Value,
-				KeyNode: ext.Key,
-			}] = low.NodeReference[any]{Value: bv, ValueNode: ext.Value}
-		}
-		if utils.IsNodeArray(ext.Value) {
-			var v []interface{}
-			err := ext.Value.Decode(&v)
-			if err != nil {
-				return nil, err
-			}
-			extensionMap[low.NodeReference[string]{
-				Value:   ext.Key.Value,
-				KeyNode: ext.Key,
-			}] = low.NodeReference[any]{Value: v, ValueNode: ext.Value}
-		}
-	}
-	return extensionMap, nil
-}
diff --git a/datamodel/low/3.0/operation.go b/datamodel/low/3.0/operation.go
index 7050b97..e13dd6b 100644
--- a/datamodel/low/3.0/operation.go
+++ b/datamodel/low/3.0/operation.go
@@ -2,7 +2,6 @@ package v3
 
 import (
 	"github.com/pb33f/libopenapi/datamodel/low"
-	"github.com/pb33f/libopenapi/index"
 	"github.com/pb33f/libopenapi/utils"
 	"gopkg.in/yaml.v3"
 )
@@ -15,19 +14,19 @@ type Operation struct {
 	Tags         []low.NodeReference[string]
 	Summary      low.NodeReference[string]
 	Description  low.NodeReference[string]
-	ExternalDocs *low.NodeReference[*ExternalDoc]
+	ExternalDocs low.NodeReference[*ExternalDoc]
 	OperationId  low.NodeReference[string]
 	Parameters   []low.NodeReference[*Parameter]
-	RequestBody  *low.NodeReference[*RequestBody]
-	Responses    *low.NodeReference[*Responses]
-	Callbacks    map[low.NodeReference[string]]low.NodeReference[*Callback]
-	Deprecated   *low.NodeReference[bool]
+	RequestBody  low.NodeReference[*RequestBody]
+	Responses    low.NodeReference[*Responses]
+	Callbacks    map[low.KeyReference[string]]low.ValueReference[*Callback]
+	Deprecated   low.NodeReference[bool]
 	Security     []low.NodeReference[*SecurityRequirement]
 	Servers      []low.NodeReference[*Server]
-	Extensions   map[low.NodeReference[string]]low.NodeReference[any]
+	Extensions   map[low.KeyReference[string]]low.ValueReference[any]
 }
 
-func (o *Operation) Build(root *yaml.Node, idx *index.SpecIndex) error {
+func (o *Operation) Build(root *yaml.Node) error {
 
 	extensionMap, err := ExtractExtensions(root)
 	if err != nil {
@@ -43,7 +42,7 @@ func (o *Operation) Build(root *yaml.Node, idx *index.SpecIndex) error {
 		if err != nil {
 			return err
 		}
-		o.ExternalDocs = &low.NodeReference[*ExternalDoc]{
+		o.ExternalDocs = low.NodeReference[*ExternalDoc]{
 			Value:     &externalDoc,
 			KeyNode:   ln,
 			ValueNode: exDocs,
@@ -61,7 +60,7 @@ func (o *Operation) Build(root *yaml.Node, idx *index.SpecIndex) error {
 			if err != nil {
 				return err
 			}
-			err = param.Build(pN, idx)
+			err = param.Build(pN)
 			if err != nil {
 				return err
 			}
diff --git a/datamodel/low/3.0/parameter.go b/datamodel/low/3.0/parameter.go
index 1f7285f..f36771d 100644
--- a/datamodel/low/3.0/parameter.go
+++ b/datamodel/low/3.0/parameter.go
@@ -2,13 +2,13 @@ package v3
 
 import (
 	"github.com/pb33f/libopenapi/datamodel/low"
-	"github.com/pb33f/libopenapi/index"
 	"github.com/pb33f/libopenapi/utils"
 	"gopkg.in/yaml.v3"
 )
 
 const (
-	SchemaLabel = "schema"
+	SchemaLabel  = "schema"
+	ContentLabel = "content"
 )
 
 type Parameter struct {
@@ -23,11 +23,23 @@ type Parameter struct {
 	AllowReserved   low.NodeReference[bool]
 	Schema          low.NodeReference[*Schema]
 	Example         low.NodeReference[any]
-	Examples        map[low.NodeReference[string]]low.NodeReference[*Example]
-	Extensions      map[low.NodeReference[string]]low.NodeReference[any]
+	Examples        map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*Example]
+	Content         map[low.KeyReference[string]]map[low.KeyReference[string]]low.ValueReference[*MediaType]
+	Extensions      map[low.KeyReference[string]]low.ValueReference[any]
 }
 
-func (p *Parameter) Build(root *yaml.Node, idx *index.SpecIndex) error {
+func (p *Parameter) GetContent(cType string) *low.ValueReference[*MediaType] {
+	for _, c := range p.Content {
+		for n, o := range c {
+			if n.Value == cType {
+				return &o
+			}
+		}
+	}
+	return nil
+}
+
+func (p *Parameter) Build(root *yaml.Node) error {
 
 	// extract extensions
 	extensionMap, err := ExtractExtensions(root)
@@ -36,27 +48,24 @@ func (p *Parameter) Build(root *yaml.Node, idx *index.SpecIndex) error {
 	}
 	p.Extensions = extensionMap
 
-	// handle schema
-	_, schLabel, schNode := utils.FindKeyNodeFull(SchemaLabel, root.Content)
-	if schNode != nil {
-		// deal with schema flat props
-		var schema Schema
-		err = BuildModel(schNode, &schema)
-		if err != nil {
-			return err
-		}
-
-		// now comes the part where things may get hairy, schemas are recursive.
-		// which means we could be here forever if our resolver has some unknown bug in it.
-		// in order to prevent this from happening, we will add a counter that tracks the depth
-		// and will hard stop once we reach 50 levels. That's too deep for any data structure IMHO.
-		err = schema.Build(schNode, idx, 0)
-		if err != nil {
-			return err
-		}
-
-		p.Schema = low.NodeReference[*Schema]{Value: &schema, KeyNode: schLabel, ValueNode: schNode}
+	// handle example if set.
+	_, expLabel, expNode := utils.FindKeyNodeFull(ExampleLabel, root.Content)
+	if expNode != nil {
+		p.Example = low.NodeReference[any]{Value: expNode.Value, KeyNode: expLabel, ValueNode: expNode}
 	}
 
+	// handle schema
+	sch, sErr := ExtractSchema(root)
+	if sErr != nil {
+		return sErr
+	}
+	p.Schema = *sch
+
+	// handle content, if set.
+	con, cErr := ExtractMap[*MediaType](ContentLabel, root)
+	if cErr != nil {
+		return cErr
+	}
+	p.Content = con
 	return nil
 }
diff --git a/datamodel/low/3.0/path.go b/datamodel/low/3.0/path.go
index d384b52..771e6b6 100644
--- a/datamodel/low/3.0/path.go
+++ b/datamodel/low/3.0/path.go
@@ -2,7 +2,6 @@ package v3
 
 import (
 	"github.com/pb33f/libopenapi/datamodel/low"
-	"github.com/pb33f/libopenapi/index"
 	"gopkg.in/yaml.v3"
 	"strings"
 	"sync"
@@ -21,19 +20,20 @@ const (
 )
 
 type Paths struct {
-	Paths      map[low.NodeReference[string]]low.NodeReference[*Path]
-	Extensions map[low.NodeReference[string]]low.NodeReference[any]
+	PathItems  map[low.KeyReference[string]]low.ValueReference[*PathItem]
+	Extensions map[low.KeyReference[string]]low.ValueReference[any]
 }
 
-func (p *Paths) GetPathMap() map[string]*Path {
-	pMap := make(map[string]*Path)
-	for i, pv := range p.Paths {
-		pMap[i.Value] = pv.Value
+func (p *Paths) GetPath(path string) *low.ValueReference[*PathItem] {
+	for k, p := range p.PathItems {
+		if k.Value == path {
+			return &p
+		}
 	}
-	return pMap
+	return nil
 }
 
-func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
+func (p *Paths) Build(root *yaml.Node) error {
 
 	// extract extensions
 	extensionMap, err := ExtractExtensions(root)
@@ -44,7 +44,7 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 	skip := false
 	var currentNode *yaml.Node
 
-	pathsMap := make(map[low.NodeReference[string]]low.NodeReference[*Path])
+	pathsMap := make(map[low.KeyReference[string]]low.ValueReference[*PathItem])
 
 	for i, pathNode := range root.Content {
 		if strings.HasPrefix(strings.ToLower(pathNode.Value), "x-") {
@@ -59,32 +59,32 @@ func (p *Paths) Build(root *yaml.Node, idx *index.SpecIndex) error {
 			currentNode = pathNode
 			continue
 		}
-		var path = Path{}
+		var path = PathItem{}
 		err = BuildModel(pathNode, &path)
 		if err != nil {
 
 		}
-		err = path.Build(pathNode, idx)
+		err = path.Build(pathNode)
 		if err != nil {
 			return err
 		}
 
 		// add bulk here
-		pathsMap[low.NodeReference[string]{
+		pathsMap[low.KeyReference[string]{
 			Value:   currentNode.Value,
 			KeyNode: currentNode,
-		}] = low.NodeReference[*Path]{
+		}] = low.ValueReference[*PathItem]{
 			Value:     &path,
 			ValueNode: pathNode,
 		}
 	}
 
-	p.Paths = pathsMap
+	p.PathItems = pathsMap
 	return nil
 
 }
 
-type Path struct {
+type PathItem struct {
 	Description low.NodeReference[string]
 	Summary     low.NodeReference[string]
 	Get         *low.NodeReference[*Operation]
@@ -97,10 +97,10 @@ type Path struct {
 	Trace       *low.NodeReference[*Operation]
 	Servers     []*low.NodeReference[*Server]
 	Parameters  []*low.NodeReference[*Parameter]
-	Extensions  map[low.NodeReference[string]]low.NodeReference[any]
+	Extensions  map[low.KeyReference[string]]low.ValueReference[any]
 }
 
-func (p *Path) Build(root *yaml.Node, idx *index.SpecIndex) error {
+func (p *PathItem) Build(root *yaml.Node) error {
 	extensionMap, err := ExtractExtensions(root)
 	if err != nil {
 		return err
@@ -171,7 +171,7 @@ func (p *Path) Build(root *yaml.Node, idx *index.SpecIndex) error {
 	var buildOpFunc = func(op low.NodeReference[*Operation], ch chan<- bool, errCh chan<- error) {
 
 		// build out the operation.
-		er := op.Value.Build(op.ValueNode, idx)
+		er := op.Value.Build(op.ValueNode)
 		if err != nil {
 			errCh <- er
 		}
diff --git a/datamodel/low/3.0/schema.go b/datamodel/low/3.0/schema.go
index e2e3dc9..8a722fb 100644
--- a/datamodel/low/3.0/schema.go
+++ b/datamodel/low/3.0/schema.go
@@ -2,7 +2,6 @@ package v3
 
 import (
 	"github.com/pb33f/libopenapi/datamodel/low"
-	"github.com/pb33f/libopenapi/index"
 	"github.com/pb33f/libopenapi/utils"
 	"gopkg.in/yaml.v3"
 	"strconv"
@@ -12,7 +11,7 @@ import (
 const (
 	PropertiesLabel           = "properties"
 	AdditionalPropertiesLabel = "additionalProperties"
-	ExampleLabel              = "example"
+	XMLLabel                  = "xml"
 	ItemsLabel                = "items"
 	AllOfLabel                = "allOf"
 	AnyOfLabel                = "anyOf"
@@ -44,7 +43,7 @@ type Schema struct {
 	AnyOf                []low.NodeReference[*Schema]
 	Not                  []low.NodeReference[*Schema]
 	Items                []low.NodeReference[*Schema]
-	Properties           map[low.NodeReference[string]]*low.NodeReference[*Schema]
+	Properties           map[low.KeyReference[string]]*low.ValueReference[*Schema]
 	AdditionalProperties low.NodeReference[any]
 	Description          low.NodeReference[string]
 	Default              low.NodeReference[any]
@@ -52,14 +51,14 @@ type Schema struct {
 	Discriminator        low.NodeReference[*Discriminator]
 	ReadOnly             low.NodeReference[bool]
 	WriteOnly            low.NodeReference[bool]
-	XML                  *low.NodeReference[*XML]
-	ExternalDocs         *low.NodeReference[*ExternalDoc]
+	XML                  low.NodeReference[*XML]
+	ExternalDocs         low.NodeReference[*ExternalDoc]
 	Example              low.NodeReference[any]
 	Deprecated           low.NodeReference[bool]
-	Extensions           map[low.NodeReference[string]]low.NodeReference[any]
+	Extensions           map[low.KeyReference[string]]low.ValueReference[any]
 }
 
-func (s *Schema) FindProperty(name string) *low.NodeReference[*Schema] {
+func (s *Schema) FindProperty(name string) *low.ValueReference[*Schema] {
 	for k, v := range s.Properties {
 		if k.Value == name {
 			return v
@@ -68,17 +67,16 @@ func (s *Schema) FindProperty(name string) *low.NodeReference[*Schema] {
 	return nil
 }
 
-func (s *Schema) Build(root *yaml.Node, idx *index.SpecIndex, level int) error {
+func (s *Schema) Build(root *yaml.Node, level int) error {
 	level++
 	if level > 50 {
 		return nil // we're done, son! too fricken deep.
 	}
 
-	extensionMap, err := ExtractExtensions(root)
+	err := s.extractExtensions(root)
 	if err != nil {
 		return err
 	}
-	s.Extensions = extensionMap
 
 	// handle example if set.
 	_, expLabel, expNode := utils.FindKeyNodeFull(ExampleLabel, root.Content)
@@ -90,7 +88,10 @@ func (s *Schema) Build(root *yaml.Node, idx *index.SpecIndex, level int) error {
 	if addPNode != nil {
 		if utils.IsNodeMap(addPNode) {
 			var props map[string]interface{}
-			addPNode.Decode(&props)
+			err = addPNode.Decode(&props)
+			if err != nil {
+				return err
+			}
 			s.AdditionalProperties = low.NodeReference[any]{Value: props, KeyNode: addPLabel, ValueNode: addPNode}
 		}
 
@@ -111,11 +112,43 @@ func (s *Schema) Build(root *yaml.Node, idx *index.SpecIndex, level int) error {
 		s.Discriminator = low.NodeReference[*Discriminator]{Value: &discriminator, KeyNode: discLabel, ValueNode: discNode}
 	}
 
+	// handle externalDocs if set.
+	_, extDocLabel, extDocNode := utils.FindKeyNodeFull(ExternalDocsLabel, root.Content)
+	if extDocNode != nil {
+		var exDoc ExternalDoc
+		err = BuildModel(extDocNode, &exDoc)
+		if err != nil {
+			return err
+		}
+		err = exDoc.Build(extDocNode)
+		if err != nil {
+			return err
+		}
+		s.ExternalDocs = low.NodeReference[*ExternalDoc]{Value: &exDoc, KeyNode: extDocLabel, ValueNode: extDocNode}
+	}
+
+	// handle xml if set.
+	_, xmlLabel, xmlNode := utils.FindKeyNodeFull(XMLLabel, root.Content)
+	if xmlNode != nil {
+		var xml XML
+		err = BuildModel(xmlNode, &xml)
+		if err != nil {
+			return err
+		}
+		// extract extensions if set.
+		err = xml.Build(xmlNode)
+		if err != nil {
+			return err
+		}
+		s.XML = low.NodeReference[*XML]{Value: &xml, KeyNode: xmlLabel, ValueNode: xmlNode}
+	}
+
 	// handle properties
 	_, propLabel, propsNode := utils.FindKeyNodeFull(PropertiesLabel, root.Content)
 	if propsNode != nil {
-		propertyMap := make(map[low.NodeReference[string]]*low.NodeReference[*Schema])
+		propertyMap := make(map[low.KeyReference[string]]*low.ValueReference[*Schema])
 		var currentProp *yaml.Node
+		var wg sync.WaitGroup
 		for i, prop := range propsNode.Content {
 			if i%2 == 0 {
 				currentProp = prop
@@ -127,17 +160,15 @@ func (s *Schema) Build(root *yaml.Node, idx *index.SpecIndex, level int) error {
 			if err != nil {
 				return err
 			}
-			err = property.Build(prop, idx, level)
+			err = property.Build(prop, level)
 			if err != nil {
 				return err
 			}
-			propertyMap[low.NodeReference[string]{
-				Value:     currentProp.Value,
-				KeyNode:   propLabel,
-				ValueNode: propsNode,
-			}] = &low.NodeReference[*Schema]{
+			propertyMap[low.KeyReference[string]{
+				Value:   currentProp.Value,
+				KeyNode: propLabel,
+			}] = &low.ValueReference[*Schema]{
 				Value:     &property,
-				KeyNode:   currentProp,
 				ValueNode: prop,
 			}
 		}
@@ -145,16 +176,15 @@ func (s *Schema) Build(root *yaml.Node, idx *index.SpecIndex, level int) error {
 
 		// extract all sub-schemas
 		var errors []error
-		var wg sync.WaitGroup
 
 		var allOf, anyOf, oneOf, not, items []low.NodeReference[*Schema]
 
 		// make this async at some point to speed things up.
-		buildSchema(&allOf, AllOfLabel, idx, root, level, &errors, &wg)
-		buildSchema(&anyOf, AnyOfLabel, idx, root, level, &errors, &wg)
-		buildSchema(&oneOf, OneOfLabel, idx, root, level, &errors, &wg)
-		buildSchema(&not, NotLabel, idx, root, level, &errors, &wg)
-		buildSchema(&items, ItemsLabel, idx, root, level, &errors, &wg)
+		buildSchema(&allOf, AllOfLabel, root, level, &errors, &wg)
+		buildSchema(&anyOf, AnyOfLabel, root, level, &errors, &wg)
+		buildSchema(&oneOf, OneOfLabel, root, level, &errors, &wg)
+		buildSchema(&not, NotLabel, root, level, &errors, &wg)
+		buildSchema(&items, ItemsLabel, root, level, &errors, &wg)
 		//wg.Wait()
 
 		if len(errors) > 0 {
@@ -182,7 +212,16 @@ func (s *Schema) Build(root *yaml.Node, idx *index.SpecIndex, level int) error {
 	return nil
 }
 
-func buildSchema(schemas *[]low.NodeReference[*Schema], attribute string, idx *index.SpecIndex, rootNode *yaml.Node, level int, errors *[]error, wg *sync.WaitGroup) {
+func (s *Schema) extractExtensions(root *yaml.Node) error {
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	s.Extensions = extensionMap
+	return err
+}
+
+func buildSchema(schemas *[]low.NodeReference[*Schema], attribute string, rootNode *yaml.Node, level int, errors *[]error, wg *sync.WaitGroup) {
 	_, labelNode, valueNode := utils.FindKeyNodeFull(attribute, rootNode.Content)
 	//wg.Add(1)
 	if valueNode != nil {
@@ -194,7 +233,7 @@ func buildSchema(schemas *[]low.NodeReference[*Schema], attribute string, idx *i
 				*errors = append(*errors, err)
 				return nil
 			}
-			err = schema.Build(vn, idx, level)
+			err = schema.Build(vn, level)
 			if err != nil {
 				*errors = append(*errors, err)
 				return nil
diff --git a/datamodel/low/3.0/schema_test.go b/datamodel/low/3.0/schema_test.go
index 0b7ea52..e349dc2 100644
--- a/datamodel/low/3.0/schema_test.go
+++ b/datamodel/low/3.0/schema_test.go
@@ -83,15 +83,25 @@ properties:
   somethingB:
     type: object
     description: an object
+    externalDocs:
+      description: the best docs
+      url: https://pb33f.io
     properties:
       somethingBProp:
         type: string
         description: something b subprop
         example: picnics are nice.
+        xml:
+          name: an xml thing
+          namespace: an xml namespace
+          prefix: a prefix
+          attribute: true
+          wrapped: false
+          x-pizza: love
     additionalProperties: 
         why: yes
         thatIs: true    
-additionalProperties: true`
+additionalProperties: true      `
 
 	var rootNode yaml.Node
 	mErr := yaml.Unmarshal([]byte(testSpec), &rootNode)
@@ -101,13 +111,26 @@ additionalProperties: true`
 	mbErr := BuildModel(&rootNode, &sch)
 	assert.NoError(t, mbErr)
 
-	schErr := sch.Build(rootNode.Content[0], nil, 0)
+	schErr := sch.Build(rootNode.Content[0], 0)
 	assert.NoError(t, schErr)
 	assert.Equal(t, "something object", sch.Description.Value)
 	assert.True(t, sch.AdditionalProperties.Value.(bool))
 
 	assert.Len(t, sch.Properties, 2)
 	v := sch.FindProperty("somethingB")
+
+	assert.Equal(t, "https://pb33f.io", v.Value.ExternalDocs.Value.URL.Value)
+	assert.Equal(t, "the best docs", v.Value.ExternalDocs.Value.Description.Value)
+
+	j := v.Value.FindProperty("somethingBProp")
+	assert.NotNil(t, j.Value)
+	assert.NotNil(t, j.Value.XML.Value)
+	assert.Equal(t, "an xml thing", j.Value.XML.Value.Name.Value)
+	assert.Equal(t, "an xml namespace", j.Value.XML.Value.Namespace.Value)
+	assert.Equal(t, "a prefix", j.Value.XML.Value.Prefix.Value)
+	assert.Equal(t, true, j.Value.XML.Value.Attribute.Value)
+	assert.Len(t, j.Value.XML.Value.Extensions, 1)
+
 	assert.NotNil(t, v.Value.AdditionalProperties.Value)
 
 	var addProps map[string]interface{}
diff --git a/datamodel/low/3.0/tag.go b/datamodel/low/3.0/tag.go
index d4ab991..a4ce3b4 100644
--- a/datamodel/low/3.0/tag.go
+++ b/datamodel/low/3.0/tag.go
@@ -15,7 +15,7 @@ type Tag struct {
 	Name         low.NodeReference[string]
 	Description  low.NodeReference[string]
 	ExternalDocs low.NodeReference[*ExternalDoc]
-	Extensions   map[low.NodeReference[string]]low.NodeReference[any]
+	Extensions   map[low.KeyReference[string]]low.ValueReference[any]
 }
 
 func (t *Tag) Build(root *yaml.Node) error {
diff --git a/datamodel/low/3.0/xml.go b/datamodel/low/3.0/xml.go
index 8acb071..dfe3512 100644
--- a/datamodel/low/3.0/xml.go
+++ b/datamodel/low/3.0/xml.go
@@ -1,16 +1,24 @@
 package v3
 
 import (
-    "github.com/pb33f/libopenapi/datamodel/low"
-    "gopkg.in/yaml.v3"
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
 )
 
 type XML struct {
-    Node       *yaml.Node
-    Name       low.NodeReference[string]
-    Namespace  low.NodeReference[string]
-    Prefix     low.NodeReference[string]
-    Attribute  low.NodeReference[string]
-    Wrapped    low.NodeReference[bool]
-    Extensions map[string]low.ObjectReference
+	Name       low.NodeReference[string]
+	Namespace  low.NodeReference[string]
+	Prefix     low.NodeReference[string]
+	Attribute  low.NodeReference[bool]
+	Wrapped    low.NodeReference[bool]
+	Extensions map[low.KeyReference[string]]low.ValueReference[any]
+}
+
+func (x *XML) Build(root *yaml.Node) error {
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	x.Extensions = extensionMap
+	return nil
 }
diff --git a/datamodel/low/reference.go b/datamodel/low/reference.go
index a8d860a..aee2fbb 100644
--- a/datamodel/low/reference.go
+++ b/datamodel/low/reference.go
@@ -6,8 +6,9 @@ type HasNode interface {
 	GetNode() *yaml.Node
 }
 
-type Buildable interface {
+type Buildable[T any] interface {
 	Build(node *yaml.Node) error
+	*T
 }
 
 type NodeReference[T any] struct {
@@ -16,6 +17,16 @@ type NodeReference[T any] struct {
 	KeyNode   *yaml.Node
 }
 
+type KeyReference[T any] struct {
+	Value   T
+	KeyNode *yaml.Node
+}
+
+type ValueReference[T any] struct {
+	Value     T
+	ValueNode *yaml.Node
+}
+
 type ObjectReference struct {
 	Value     interface{}
 	ValueNode *yaml.Node
@@ -25,3 +36,11 @@ type ObjectReference struct {
 func (n NodeReference[T]) IsEmpty() bool {
 	return n.KeyNode == nil && n.ValueNode == nil
 }
+
+func (n NodeReference[T]) IsMapKeyNode() bool {
+	return n.KeyNode != nil && n.ValueNode == nil
+}
+
+func (n NodeReference[T]) IsMapValueNode() bool {
+	return n.KeyNode == nil && n.ValueNode != nil
+}
diff --git a/openapi/create_document.go b/openapi/create_document.go
index f87b6e0..dad34ec 100644
--- a/openapi/create_document.go
+++ b/openapi/create_document.go
@@ -15,8 +15,7 @@ func CreateDocument(info *datamodel.SpecInfo) (*v3.Document, error) {
 	doc := v3.Document{Version: low.NodeReference[string]{Value: info.Version, ValueNode: info.RootNode}}
 
 	// build an index
-	idx := index.NewSpecIndex(info.RootNode)
-	rsolvr := resolver.NewResolver(idx)
+	rsolvr := resolver.NewResolver(index.NewSpecIndex(info.RootNode))
 
 	// todo handle errors
 	rsolvr.Resolve()
@@ -24,18 +23,18 @@ func CreateDocument(info *datamodel.SpecInfo) (*v3.Document, error) {
 	var wg sync.WaitGroup
 	var errors []error
 	var runExtraction = func(info *datamodel.SpecInfo, doc *v3.Document,
-		runFunc func(i *datamodel.SpecInfo, d *v3.Document, idx *index.SpecIndex) error,
+		runFunc func(i *datamodel.SpecInfo, d *v3.Document) error,
 		ers *[]error,
 		wg *sync.WaitGroup) {
 
-		if er := runFunc(info, doc, idx); er != nil {
+		if er := runFunc(info, doc); er != nil {
 			*ers = append(*ers, er)
 		}
 
 		wg.Done()
 	}
 
-	extractionFuncs := []func(i *datamodel.SpecInfo, d *v3.Document, idx *index.SpecIndex) error{
+	extractionFuncs := []func(i *datamodel.SpecInfo, d *v3.Document) error{
 		extractInfo,
 		extractServers,
 		extractTags,
@@ -54,7 +53,7 @@ func CreateDocument(info *datamodel.SpecInfo) (*v3.Document, error) {
 	return &doc, nil
 }
 
-func extractInfo(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecIndex) error {
+func extractInfo(info *datamodel.SpecInfo, doc *v3.Document) error {
 	_, ln, vn := utils.FindKeyNodeFull(v3.InfoLabel, info.RootNode.Content)
 	if vn != nil {
 		ir := v3.Info{}
@@ -69,7 +68,7 @@ func extractInfo(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecInde
 	return nil
 }
 
-func extractServers(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecIndex) error {
+func extractServers(info *datamodel.SpecInfo, doc *v3.Document) error {
 	_, ln, vn := utils.FindKeyNodeFull(v3.ServersLabel, info.RootNode.Content)
 	if vn != nil {
 		if utils.IsNodeArray(vn) {
@@ -95,7 +94,7 @@ func extractServers(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecI
 	return nil
 }
 
-func extractTags(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecIndex) error {
+func extractTags(info *datamodel.SpecInfo, doc *v3.Document) error {
 	_, ln, vn := utils.FindKeyNodeFull(v3.TagsLabel, info.RootNode.Content)
 	if vn != nil {
 		if utils.IsNodeArray(vn) {
@@ -121,11 +120,11 @@ func extractTags(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecInde
 	return nil
 }
 
-func extractPaths(info *datamodel.SpecInfo, doc *v3.Document, idx *index.SpecIndex) error {
+func extractPaths(info *datamodel.SpecInfo, doc *v3.Document) error {
 	_, ln, vn := utils.FindKeyNodeFull(v3.PathsLabel, info.RootNode.Content)
 	if vn != nil {
 		ir := v3.Paths{}
-		err := ir.Build(vn, idx)
+		err := ir.Build(vn)
 		if err != nil {
 			return err
 		}
diff --git a/openapi/create_document_test.go b/openapi/create_document_test.go
index 76f7003..16d37b9 100644
--- a/openapi/create_document_test.go
+++ b/openapi/create_document_test.go
@@ -1,109 +1,126 @@
 package openapi
 
 import (
-	"github.com/pb33f/libopenapi/datamodel"
-	v3 "github.com/pb33f/libopenapi/datamodel/low/3.0"
-	"github.com/stretchr/testify/assert"
-	"io/ioutil"
-	"testing"
+    "github.com/pb33f/libopenapi/datamodel"
+    v3 "github.com/pb33f/libopenapi/datamodel/low/3.0"
+    "github.com/stretchr/testify/assert"
+    "io/ioutil"
+    "testing"
 )
 
 var doc *v3.Document
 
 func init() {
-	data, _ := ioutil.ReadFile("../test_specs/burgershop.openapi.yaml")
-	info, _ := datamodel.ExtractSpecInfo(data)
-	doc, _ = CreateDocument(info)
+    data, _ := ioutil.ReadFile("../test_specs/burgershop.openapi.yaml")
+    info, _ := datamodel.ExtractSpecInfo(data)
+    doc, _ = CreateDocument(info)
 }
 
 func BenchmarkCreateDocument(b *testing.B) {
-	data, _ := ioutil.ReadFile("../test_specs/burgershop.openapi.yaml")
-	info, _ := datamodel.ExtractSpecInfo(data)
-	for i := 0; i < b.N; i++ {
-		doc, _ = CreateDocument(info)
-	}
+    data, _ := ioutil.ReadFile("../test_specs/burgershop.openapi.yaml")
+    info, _ := datamodel.ExtractSpecInfo(data)
+    for i := 0; i < b.N; i++ {
+        doc, _ = CreateDocument(info)
+    }
 }
 
 func TestCreateDocument(t *testing.T) {
-	assert.Equal(t, "3.0.1", doc.Version.Value)
-	assert.Equal(t, "Burger Shop", doc.Info.Value.Title.Value)
-	assert.NotEmpty(t, doc.Info.Value.Title.Value)
+    assert.Equal(t, "3.0.1", doc.Version.Value)
+    assert.Equal(t, "Burger Shop", doc.Info.Value.Title.Value)
+    assert.NotEmpty(t, doc.Info.Value.Title.Value)
 }
 
 func TestCreateDocument_Info(t *testing.T) {
-	assert.Equal(t, "https://pb33f.io", doc.Info.Value.TermsOfService.Value)
-	assert.Equal(t, "pb33f", doc.Info.Value.Contact.Value.Name.Value)
-	assert.Equal(t, "buckaroo@pb33f.io", doc.Info.Value.Contact.Value.Email.Value)
-	assert.Equal(t, "https://pb33f.io", doc.Info.Value.Contact.Value.URL.Value)
-	assert.Equal(t, "pb33f", doc.Info.Value.License.Value.Name.Value)
-	assert.Equal(t, "https://pb33f.io/made-up", doc.Info.Value.License.Value.URL.Value)
+    assert.Equal(t, "https://pb33f.io", doc.Info.Value.TermsOfService.Value)
+    assert.Equal(t, "pb33f", doc.Info.Value.Contact.Value.Name.Value)
+    assert.Equal(t, "buckaroo@pb33f.io", doc.Info.Value.Contact.Value.Email.Value)
+    assert.Equal(t, "https://pb33f.io", doc.Info.Value.Contact.Value.URL.Value)
+    assert.Equal(t, "pb33f", doc.Info.Value.License.Value.Name.Value)
+    assert.Equal(t, "https://pb33f.io/made-up", doc.Info.Value.License.Value.URL.Value)
 }
 
 func TestCreateDocument_Servers(t *testing.T) {
-	assert.Len(t, doc.Servers, 2)
-	server1 := doc.Servers[0]
-	server2 := doc.Servers[1]
+    assert.Len(t, doc.Servers, 2)
+    server1 := doc.Servers[0]
+    server2 := doc.Servers[1]
 
-	// server 1
-	assert.Equal(t, "{scheme}://api.pb33f.io", server1.Value.URL.Value)
-	assert.NotEmpty(t, server1.Value.Description.Value)
-	assert.Len(t, server1.Value.Variables.Value, 1)
-	assert.Len(t, server1.Value.Variables.Value["scheme"].Value.Enum, 2)
-	assert.Equal(t, server1.Value.Variables.Value["scheme"].Value.Default.Value, "https")
-	assert.NotEmpty(t, server1.Value.Variables.Value["scheme"].Value.Description.Value)
+    // server 1
+    assert.Equal(t, "{scheme}://api.pb33f.io", server1.Value.URL.Value)
+    assert.NotEmpty(t, server1.Value.Description.Value)
+    assert.Len(t, server1.Value.Variables.Value, 1)
+    assert.Len(t, server1.Value.Variables.Value["scheme"].Value.Enum, 2)
+    assert.Equal(t, server1.Value.Variables.Value["scheme"].Value.Default.Value, "https")
+    assert.NotEmpty(t, server1.Value.Variables.Value["scheme"].Value.Description.Value)
 
-	// server 2
-	assert.Equal(t, "https://{domain}.{host}.com", server2.Value.URL.Value)
-	assert.NotEmpty(t, server2.Value.Description.Value)
-	assert.Len(t, server2.Value.Variables.Value, 2)
-	assert.Equal(t, server2.Value.Variables.Value["domain"].Value.Default.Value, "api")
-	assert.NotEmpty(t, server2.Value.Variables.Value["domain"].Value.Description.Value)
-	assert.NotEmpty(t, server2.Value.Variables.Value["host"].Value.Description.Value)
-	assert.Equal(t, server2.Value.Variables.Value["host"].Value.Default.Value, "pb33f.io")
-	assert.Equal(t, "1.2", doc.Info.Value.Version.Value)
+    // server 2
+    assert.Equal(t, "https://{domain}.{host}.com", server2.Value.URL.Value)
+    assert.NotEmpty(t, server2.Value.Description.Value)
+    assert.Len(t, server2.Value.Variables.Value, 2)
+    assert.Equal(t, server2.Value.Variables.Value["domain"].Value.Default.Value, "api")
+    assert.NotEmpty(t, server2.Value.Variables.Value["domain"].Value.Description.Value)
+    assert.NotEmpty(t, server2.Value.Variables.Value["host"].Value.Description.Value)
+    assert.Equal(t, server2.Value.Variables.Value["host"].Value.Default.Value, "pb33f.io")
+    assert.Equal(t, "1.2", doc.Info.Value.Version.Value)
 }
 
 func TestCreateDocument_Tags(t *testing.T) {
-	assert.Len(t, doc.Tags, 2)
+    assert.Len(t, doc.Tags, 2)
 
-	// tag1
-	assert.Equal(t, "Burgers", doc.Tags[0].Value.Name.Value)
-	assert.NotEmpty(t, doc.Tags[0].Value.Description.Value)
-	assert.NotNil(t, doc.Tags[0].Value.ExternalDocs.Value)
-	assert.Equal(t, "https://pb33f.io", doc.Tags[0].Value.ExternalDocs.Value.URL.Value)
-	assert.NotEmpty(t, doc.Tags[0].Value.ExternalDocs.Value.URL.Value)
-	assert.Len(t, doc.Tags[0].Value.Extensions, 7)
+    // tag1
+    assert.Equal(t, "Burgers", doc.Tags[0].Value.Name.Value)
+    assert.NotEmpty(t, doc.Tags[0].Value.Description.Value)
+    assert.NotNil(t, doc.Tags[0].Value.ExternalDocs.Value)
+    assert.Equal(t, "https://pb33f.io", doc.Tags[0].Value.ExternalDocs.Value.URL.Value)
+    assert.NotEmpty(t, doc.Tags[0].Value.ExternalDocs.Value.URL.Value)
+    assert.Len(t, doc.Tags[0].Value.Extensions, 7)
 
-	for key, extension := range doc.Tags[0].Value.Extensions {
-		switch key.Value {
-		case "x-internal-ting":
-			assert.Equal(t, "somethingSpecial", extension.Value)
-		case "x-internal-tong":
-			assert.Equal(t, int64(1), extension.Value)
-		case "x-internal-tang":
-			assert.Equal(t, 1.2, extension.Value)
-		case "x-internal-tung":
-			assert.Equal(t, true, extension.Value)
-		case "x-internal-arr":
-			assert.Len(t, extension.Value, 2)
-			assert.Equal(t, "one", extension.Value.([]interface{})[0].(string))
-		case "x-internal-arrmap":
-			assert.Len(t, extension.Value, 2)
-			assert.Equal(t, "now", extension.Value.([]interface{})[0].(map[string]interface{})["what"])
-		case "x-something-else":
-			// crazy times in the upside down. this API should be avoided for the higher up use cases.
-			// this is why we will need a higher level API to this model, this looks cool and all, but dude.
-			assert.Equal(t, "now?", extension.Value.(map[string]interface{})["ok"].([]interface{})[0].(map[string]interface{})["what"])
-		}
+    for key, extension := range doc.Tags[0].Value.Extensions {
+        switch key.Value {
+        case "x-internal-ting":
+            assert.Equal(t, "somethingSpecial", extension.Value)
+        case "x-internal-tong":
+            assert.Equal(t, int64(1), extension.Value)
+        case "x-internal-tang":
+            assert.Equal(t, 1.2, extension.Value)
+        case "x-internal-tung":
+            assert.Equal(t, true, extension.Value)
+        case "x-internal-arr":
+            assert.Len(t, extension.Value, 2)
+            assert.Equal(t, "one", extension.Value.([]interface{})[0].(string))
+        case "x-internal-arrmap":
+            assert.Len(t, extension.Value, 2)
+            assert.Equal(t, "now", extension.Value.([]interface{})[0].(map[string]interface{})["what"])
+        case "x-something-else":
+            // crazy times in the upside down. this API should be avoided for the higher up use cases.
+            // this is why we will need a higher level API to this model, this looks cool and all, but dude.
+            assert.Equal(t, "now?", extension.Value.(map[string]interface{})["ok"].([]interface{})[0].(map[string]interface{})["what"])
+        }
 
-	}
+    }
 
-	/// tag2
-	assert.Equal(t, "Dressing", doc.Tags[1].Value.Name.Value)
-	assert.NotEmpty(t, doc.Tags[1].Value.Description.Value)
-	assert.NotNil(t, doc.Tags[1].Value.ExternalDocs.Value)
-	assert.Equal(t, "https://pb33f.io", doc.Tags[1].Value.ExternalDocs.Value.URL.Value)
-	assert.NotEmpty(t, doc.Tags[1].Value.ExternalDocs.Value.URL.Value)
-	assert.Len(t, doc.Tags[1].Value.Extensions, 0)
+    /// tag2
+    assert.Equal(t, "Dressing", doc.Tags[1].Value.Name.Value)
+    assert.NotEmpty(t, doc.Tags[1].Value.Description.Value)
+    assert.NotNil(t, doc.Tags[1].Value.ExternalDocs.Value)
+    assert.Equal(t, "https://pb33f.io", doc.Tags[1].Value.ExternalDocs.Value.URL.Value)
+    assert.NotEmpty(t, doc.Tags[1].Value.ExternalDocs.Value.URL.Value)
+    assert.Len(t, doc.Tags[1].Value.Extensions, 0)
+
+}
+
+func TestCreateDocument_Paths(t *testing.T) {
+    assert.Len(t, doc.Paths.Value.PathItems, 6)
+    burgerId := doc.Paths.Value.GetPath("/burgers/{burgerId}")
+    assert.NotNil(t, burgerId)
+    assert.Len(t, burgerId.Value.Get.Value.Parameters, 2)
+    param := burgerId.Value.Get.Value.Parameters[1]
+    assert.Equal(t, "burgerHeader", param.Value.Name.Value)
+    prop := param.Value.Schema.Value.FindProperty("burgerTheme")
+    assert.Equal(t, "something about a theme?", prop.Value.Description.Value)
+    assert.Equal(t, "big-mac", param.Value.Example.Value)
+
+    // check content
+    pContent := param.Value.GetContent("application/json")
+    assert.Equal(t, "somethingNice", pContent.Value.Example.Value)
 
 }
diff --git a/test_specs/burgershop.openapi.yaml b/test_specs/burgershop.openapi.yaml
index 176e152..191dd8e 100644
--- a/test_specs/burgershop.openapi.yaml
+++ b/test_specs/burgershop.openapi.yaml
@@ -321,6 +321,27 @@ components:
       example: big-mac
       description: the name of the burger. use this to order your food
       required: true
+      content:
+        application/json:
+          example: somethingNice
+          encoding:
+            burgerTheme:
+              contentType: text/plain
+              headers:
+                someHeader:
+                  description: this is a header
+                  schema:
+                    type: string
+          schema:
+            type: object
+            required: [burgerTheme, burgerTime]
+            properties:
+              burgerTheme:
+                type: string
+                description: something about a theme?
+              burgerTime:
+                type: number
+                description: number of burgers ordered this year.
     BurgerId:
       in: path
       name: burgerId