add complete working backend implementation

Author: Saketh Pericherla

backend/models/create-issue-request.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "create-issue",
+  "type": "object",
+  "properties": {
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "assigneeId": {
+      "type": "string"
+    }
+  },
+  "required": ["title"],
+  "additionalProperties": false
+}

backend/models/delete-issue-request.json

@@ -0,0 +1,12 @@
+{
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "title": "delete-issue",
+    "type": "object",
+    "properties": {
+      "issueId": {
+        "type": "string"
+      }
+    },
+    "required": ["issueId"],
+    "additionalProperties": false
+  }

backend/models/get-issues-request.json

@@ -0,0 +1,13 @@
+{
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "title": "get-issues",
+    "type": "object",
+    "properties": {
+      "userType": {
+        "type": "string",
+        "enum": ["reporter", "assignee"]
+      }
+    },
+    "required": ["userType"],
+    "additionalProperties": false
+  }

backend/models/update-issue-request.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "update-issue",
+  "type": "object",
+  "properties": {
+    "assigneeId": {
+      "type": "string"
+    },
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "status": {
+      "type": "string"
+    }
+  },
+  "minProperties": 1,
+  "additionalProperties": false
+}