From 40f1e939d75ab20c24f505d816c40dfe722512b1 Mon Sep 17 00:00:00 2001
From: Daniel Lugo <danlugo92@gmail.com>
Date: Mon, 13 Jan 2020 15:59:18 -0400
Subject: [PATCH] order schema

---
 services/gunDB/contact-api/schema.js | 41 ++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

diff --git a/services/gunDB/contact-api/schema.js b/services/gunDB/contact-api/schema.js
index 929534c9..9a7d57bf 100644
--- a/services/gunDB/contact-api/schema.js
+++ b/services/gunDB/contact-api/schema.js
@@ -1,5 +1,5 @@
 /**
- * @prettier
+ * @format
  */
 /**
  * @typedef {object} HandshakeRequest
@@ -316,7 +316,6 @@ exports.isPartialOutgoing = item => {
 }
 
 /**
- *
  * @param {any} item
  * @returns {item is Outgoing}
  */
@@ -337,3 +336,41 @@ exports.isOutgoing = item => {
 
   return typeof obj.with === 'string' && messagesAreMessages
 }
+
+/**
+ * @typedef {object} Order
+ * @prop {string} from Public key of sender.
+ * @prop {string} amount Encrypted
+ * @prop {string} memo Encrypted
+ * @prop {number} timestamp
+ */
+
+/**
+ * @param {any} item
+ * @returns {item is Order}
+ */
+exports.isOrder = item => {
+  if (typeof item !== 'object') {
+    return false
+  }
+
+  if (item === null) {
+    return false
+  }
+
+  const obj = /** @type {Order} */ (item)
+
+  if (typeof obj.amount !== 'string') {
+    return false
+  }
+
+  if (typeof obj.from !== 'string') {
+    return false
+  }
+
+  if (typeof obj.memo !== 'string') {
+    return false
+  }
+
+  return typeof obj.timestamp === 'number'
+}