diff --git a/src/main/kotlin/com/restapi/Test.kt b/src/main/kotlin/com/restapi/Test.kt
new file mode 100644
index 0000000..a1aef92
--- /dev/null
+++ b/src/main/kotlin/com/restapi/Test.kt
@@ -0,0 +1,74 @@
+package com.restapi
+
+import com.fasterxml.jackson.core.JsonParser
+import com.fasterxml.jackson.databind.DeserializationContext
+import com.fasterxml.jackson.databind.JsonDeserializer
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import com.restapi.controllers.QueryParam
+import com.restapi.controllers.RawQuery
+
+class FDeserializer : JsonDeserializer<F>() {
+    override fun deserialize(p: JsonParser, p1: DeserializationContext?): F {
+        //custom logic to do thia
+        val node = p.readValueAsTree<JsonNode>()
+
+        if (node.isObject) {
+            if (node.has("name")) {
+                return F.P(name = node.get("name").textValue())
+            } else if (node.has("num")) {
+                return F.Q(num = node.get("num").textValue())
+            } else if (node.has("tag")) {
+                return F.D(tag = node.get("tag").textValue())
+            }
+
+        } else {
+            //incorrect
+        }
+        throw IllegalArgumentException()
+    }
+
+}
+val om = jacksonObjectMapper()
+
+@JsonDeserialize(using = FDeserializer::class)
+sealed interface F {
+    data class P(val name: String) : F
+    data class Q(val num: String) : F
+    data class D(val tag: String) : F
+}
+
+val j = """
+    {"name":"a"}
+""".trimIndent()
+
+val j2 = """
+    {"num":"a"}
+""".trimIndent()
+
+val j3 = """
+    {"tag":"a"}
+""".trimIndent()
+
+val j4 = """
+    {
+    "sql":"aaaa",
+    "params": {
+            "a":"b",
+            "c": {
+                "type":"STRING",
+                "value":"aaaa"
+             }
+            
+        }
+    }
+""".trimIndent()
+
+fun main() {
+    println(om.readValue<F>(j))
+    println(om.readValue<F>(j2))
+    println(om.readValue<F>(j3))
+    println(om.readValue<RawQuery>(j4))
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/restapi/controllers/Filters.kt b/src/main/kotlin/com/restapi/controllers/Filters.kt
index b2ad26c..7745f7f 100644
--- a/src/main/kotlin/com/restapi/controllers/Filters.kt
+++ b/src/main/kotlin/com/restapi/controllers/Filters.kt
@@ -1,66 +1,74 @@
 package com.restapi.controllers
 
 import com.restapi.domain.*
-import com.restapi.domain.Quotation
 import com.restapi.domain.Session.database
 import java.time.LocalDate
 
 //constants
 const val IGNORE = "%"
-val baseDate :LocalDate = LocalDate.of(1500, 1,1, )
-val maxDate :LocalDate = LocalDate.of(3000, 1 ,1)
+val baseDate: LocalDate = LocalDate.of(1500, 1, 1)
+val maxDate: LocalDate = LocalDate.of(3000, 1, 1)
 const val RATING_MAX = 10.0
 const val RATING_MIN = 0.0
+
 //common filters would be used by most of the handlers
 //require a list of vendor ids to be passed
-data class CommonFilters (
-    val fromDate :LocalDate = baseDate,
-    val toDate :LocalDate = maxDate,
-    val vendor :List<Long>? = null,
-    val sortAsc :Boolean = true,
-    val sortBy :String = IGNORE
+data class CommonFilters(
+    val fromDate: LocalDate = baseDate,
+    val toDate: LocalDate = maxDate,
+    val vendor: List<Long>? = null,
+    val sortAsc: Boolean = true,
+    val sortBy: String = IGNORE
 )
-interface CustomFilters{}
-data class POFilters (
-    val poNumLike :String = IGNORE,
-    val totalAmountExceeds :Long = Long.MIN_VALUE,
-    val totalAmountLessThan :Long = Long.MAX_VALUE,
+
+interface CustomFilters {}
+
+data class POFilters(
+    val poNumLike: String = IGNORE,
+    val totalAmountExceeds: Long = Long.MIN_VALUE,
+    val totalAmountLessThan: Long = Long.MAX_VALUE,
     val validAfter: LocalDate = baseDate,
     val validBefore: LocalDate = maxDate,
-    val refQuotation :String = IGNORE,
+    val refQuotation: String = IGNORE,
 ) : CustomFilters
-data class ProductFilters (
-    val nameLike :String = IGNORE,
-    val hsnLike :String = IGNORE,
-    val uom :UOM = UOM.ALL,
+
+data class ProductFilters(
+    val nameLike: String = IGNORE,
+    val hsnLike: String = IGNORE,
+    val uom: UOM = UOM.ALL,
 ) : CustomFilters
-data class DocumentFilters (
-    val nameLike :String = IGNORE,
-    val typeOfDoc :DocType = DocType.ALL,
-    val docDateFrom :LocalDate = baseDate,
-    val docDataTo :LocalDate = maxDate,
-) :CustomFilters
-data class RFQFilters (
-    val validBefore :LocalDate = maxDate,
-    val validAfter :LocalDate = baseDate,
-    val reqForQuoteNumLike :String = IGNORE,
-)
-data class QuoteFilters (
-    val quoteNumLike :String = IGNORE,
-    val validBefore :LocalDate = maxDate,
-    val validAfter :LocalDate = baseDate,
-    val totalAmountExceeds :Long = Long.MIN_VALUE,
-    val totalAmountLessThan :Long = Long.MAX_VALUE,
-) :CustomFilters
-data class VendorFilters (
-    val nameLike :String = IGNORE,
-    val msmeLike :String = IGNORE,
-    val gstNumLike :String = IGNORE,
-    val addressLike :String = IGNORE,
-    val ratingExceeds :Double = RATING_MIN,
-    val ratingLessThan :Double = RATING_MAX,
-) :CustomFilters
-fun<T> applyVendorHelper(q :io.ebean.ExpressionList<T>, vids :List<Long>?) {
+
+data class DocumentFilters(
+    val nameLike: String = IGNORE,
+    val typeOfDoc: DocType = DocType.ALL,
+    val docDateFrom: LocalDate = baseDate,
+    val docDataTo: LocalDate = maxDate,
+) : CustomFilters
+
+data class RFQFilters(
+    val validBefore: LocalDate = maxDate,
+    val validAfter: LocalDate = baseDate,
+    val reqForQuoteNumLike: String = IGNORE,
+): CustomFilters
+
+data class QuoteFilters(
+    val quoteNumLike: String = IGNORE,
+    val validBefore: LocalDate = maxDate,
+    val validAfter: LocalDate = baseDate,
+    val totalAmountExceeds: Long = Long.MIN_VALUE,
+    val totalAmountLessThan: Long = Long.MAX_VALUE,
+) : CustomFilters
+
+data class VendorFilters(
+    val nameLike: String = IGNORE,
+    val msmeLike: String = IGNORE,
+    val gstNumLike: String = IGNORE,
+    val addressLike: String = IGNORE,
+    val ratingExceeds: Double = RATING_MIN,
+    val ratingLessThan: Double = RATING_MAX,
+) : CustomFilters
+
+fun <T> applyVendorHelper(q: io.ebean.ExpressionList<T>, vids: List<Long>?) {
     if (vids.isNullOrEmpty()) return
 //    q.apply {
 //        q.`in`("vendor", vids)
@@ -69,35 +77,40 @@ fun<T> applyVendorHelper(q :io.ebean.ExpressionList<T>, vids :List<Long>?) {
 //    println(vids[0])
     q.eq("vendor_sys_pk", vids[0])
 }
-fun<T> applySortHelper(q :io.ebean.ExpressionList<T>, sortBy :String, asc :Boolean) {
-    if(sortBy == IGNORE) return;
+
+fun <T> applySortHelper(q: io.ebean.ExpressionList<T>, sortBy: String, asc: Boolean) {
+    if (sortBy == IGNORE) return;
     val order = if (asc) "ASC" else "DESC"
     q.orderBy("$sortBy $order")
 }
-fun<T> applyFromToHelper(q :io.ebean.ExpressionList<T>, fromDate: LocalDate, toDate: LocalDate, colName :String) {
+
+fun <T> applyFromToHelper(q: io.ebean.ExpressionList<T>, fromDate: LocalDate, toDate: LocalDate, colName: String) {
     q.ge(colName, fromDate)
         .le(colName, toDate)
 }
-fun<T> applyCommonFilters(q :io.ebean.ExpressionList<T>, commonFilters: CommonFilters) {
+
+fun <T> applyCommonFilters(q: io.ebean.ExpressionList<T>, commonFilters: CommonFilters) {
     applyVendorHelper<T>(q, commonFilters.vendor)
     applySortHelper<T>(q, commonFilters.sortBy, commonFilters.sortAsc)
 }
-fun searchQuotes(commonFilters: CommonFilters, quoteFilters: QuoteFilters) : List<Quotation> {
+
+fun searchQuotes(commonFilters: CommonFilters, quoteFilters: QuoteFilters): List<Quotation> {
     val q = database.find(Quotation::class.java)
         .where()
         .ge("quoteDate", commonFilters.fromDate)
         .le("quoteDate", commonFilters.toDate)
-        .ge("validTill",quoteFilters.validAfter)
+        .ge("validTill", quoteFilters.validAfter)
         .le("validTill", quoteFilters.validBefore)
         .ge("totalAmount", quoteFilters.totalAmountExceeds)
         .le("totalAmount", quoteFilters.totalAmountLessThan)
-        .ilike("quoteNum", "%" + quoteFilters.quoteNumLike  + "%")
+        .ilike("quoteNum", "%" + quoteFilters.quoteNumLike + "%")
     applyFromToHelper(q, commonFilters.fromDate, commonFilters.toDate, "quoteDate")
     applyVendorHelper(q, commonFilters.vendor)
     applySortHelper(q, commonFilters.sortBy, commonFilters.sortAsc)
     return q.findList()
 }
-fun searchVendors(commonFilters: CommonFilters, vendorFilters: VendorFilters) : List<Vendor> {
+
+fun searchVendors(commonFilters: CommonFilters, vendorFilters: VendorFilters): List<Vendor> {
     val q = database.find(Vendor::class.java)
         .where()
         .ge("rating", vendorFilters.ratingExceeds)
@@ -109,11 +122,12 @@ fun searchVendors(commonFilters: CommonFilters, vendorFilters: VendorFilters) :
     applySortHelper(q, commonFilters.sortBy, commonFilters.sortAsc)
     return q.findList()
 }
-fun searchDocs(commonFilters: CommonFilters, documentFilters: DocumentFilters) : List<Document> {
+
+fun searchDocs(commonFilters: CommonFilters, documentFilters: DocumentFilters): List<Document> {
     val q = database.find(Document::class.java)
         .where()
         .apply {
-            if(documentFilters.typeOfDoc != DocType.ALL){
+            if (documentFilters.typeOfDoc != DocType.ALL) {
                 this.eq("docType", documentFilters.typeOfDoc)
             }
         }
@@ -122,7 +136,8 @@ fun searchDocs(commonFilters: CommonFilters, documentFilters: DocumentFilters) :
     applyVendorHelper(q, commonFilters.vendor)
     return q.findList()
 }
-fun searchPos(commonFilters: CommonFilters, poFilters: POFilters?) : List<PurchaseOrder> {
+
+fun searchPos(commonFilters: CommonFilters, poFilters: POFilters?): List<PurchaseOrder> {
     val poFilters = poFilters ?: POFilters()
     val q = database.find(PurchaseOrder::class.java)
         .where()
@@ -137,7 +152,8 @@ fun searchPos(commonFilters: CommonFilters, poFilters: POFilters?) : List<Purcha
     applySortHelper(q, commonFilters.sortBy, commonFilters.sortAsc)
     return q.findList()
 }
-fun searchRFQ(commonFilters: CommonFilters, rfqFilters: RFQFilters) : List<ReqForQuote> {
+
+fun searchRFQ(commonFilters: CommonFilters, rfqFilters: RFQFilters): List<ReqForQuote> {
     val q = database.find(ReqForQuote::class.java)
         .where()
         .ge("validTill", rfqFilters.validAfter)