chore: support application/vnd.api+json content type

Author: mateusz-drzymala-form3

internal/app/pactproxy/interaction.go

@@ -14,10 +14,11 @@ import (
 )
 
 const (
-	mediaTypeJSON = "application/json"
-	mediaTypeText = "text/plain"
-	mediaTypeXml  = "application/xml"
-	mediaTypeCsv  = "text/csv"
+	mediaTypeJSON    = "application/json"
+	mediaTypeJSONAPI = "application/vnd.api+json"
+	mediaTypeText    = "text/plain"
+	mediaTypeXml     = "application/xml"
+	mediaTypeCsv     = "text/csv"
 )
 
 type pathMatcher interface {
@@ -116,7 +117,7 @@ func LoadInteraction(data []byte, alias string) (*Interaction, error) {
 	}
 
 	switch mediaType {
-	case mediaTypeJSON:
+	case mediaTypeJSON, mediaTypeJSONAPI:
 		interaction.addJSONConstraintsFromPact("$.body", propertiesWithMatchingRule, requestBody)
 		return interaction, nil
 	case mediaTypeText, mediaTypeCsv, mediaTypeXml:

internal/app/pactproxy/proxy.go

@@ -36,10 +36,11 @@ type Config struct {
 }
 
 var supportedMediaTypes = map[string]func([]byte, *url.URL) (requestDocument, error){
-	mediaTypeJSON: ParseJSONRequest,
-	mediaTypeText: ParsePlainTextRequest,
-	mediaTypeCsv:  ParsePlainTextRequest,
-	mediaTypeXml:  ParsePlainTextRequest,
+	mediaTypeJSON:    ParseJSONRequest,
+	mediaTypeJSONAPI: ParseJSONRequest,
+	mediaTypeText:    ParsePlainTextRequest,
+	mediaTypeCsv:     ParsePlainTextRequest,
+	mediaTypeXml:     ParsePlainTextRequest,
 }
 
 type api struct {

internal/app/proxy_test.go

@@ -296,6 +296,12 @@ func createNonJsonTestCases() map[string]nonJsonTestCase {
 			respContentType: "application/json",
 			respBody:        `{"status":"ok"}`,
 		},
+		"application/vnd.api+json request and application/json response": {
+			reqContentType:  "application/vnd.api+json",
+			reqBody:         `{"firstname":"foo"}`,
+			respContentType: "application/json",
+			respBody:        `{"status":"ok"}`,
+		},
 	}
 }