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+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2015 Andrew Snare, Age Mooij
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package gh
+import spray.json._
+
+/**
+ * A custom version of the Spray DefaultJsonProtocol with a modified field naming strategy
+ */
+trait SnakifiedSprayJsonSupport extends DefaultJsonProtocol {
+ import reflect._
+
+ /**
+ * This is the most important piece of code in this object!
+ * It overrides the default naming scheme used by spray-json and replaces it with a scheme that turns camelcased
+ * names into snakified names (i.e. using underscores as word separators).
+ */
+ override protected def extractFieldNames(classTag: ClassTag[_]) = {
+ import java.util.Locale
+
+ def snakify(name: String) = {
+ val pass1 = """([A-Z]+)([A-Z][a-z])""".r.replaceAllIn(name, "$1_$2")
+ val pass2 = """([a-z\d])([A-Z])""".r.replaceAllIn(pass1, "$1_$2")
+
+ pass2.toLowerCase(Locale.US)
+ }
+
+ super.extractFieldNames(classTag).map{ snakify(_) }
+ }
+}
+
+object SnakifiedSprayJsonSupport extends SnakifiedSprayJsonSupport