diff --git a/.openapi-generator-ignore b/.openapi-generator-ignore
new file mode 100644
index 0000000..7484ee5
--- /dev/null
+++ b/.openapi-generator-ignore
@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
diff --git a/.openapi-generator/FILES b/.openapi-generator/FILES
new file mode 100644
index 0000000..b28acea
--- /dev/null
+++ b/.openapi-generator/FILES
@@ -0,0 +1,20 @@
+.openapi-generator-ignore
+README.md
+models/error.proto
+models/error_error.proto
+models/get_all_issue_track_response.proto
+models/get_all_issue_track_response_message_inner.proto
+models/issue.proto
+models/issue_post_req.proto
+models/issue_post_req_message.proto
+models/issue_raise_post202_response.proto
+models/issue_raise_post202_response_message.proto
+models/issue_track_response.proto
+models/issue_track_response_message_inner.proto
+models/order.proto
+models/person.proto
+models/reason.proto
+models/reason_response.proto
+models/reason_response_message_inner.proto
+services/issue_service.proto
+services/reason_service.proto
diff --git a/.openapi-generator/VERSION b/.openapi-generator/VERSION
new file mode 100644
index 0000000..6d54bbd
--- /dev/null
+++ b/.openapi-generator/VERSION
@@ -0,0 +1 @@
+6.0.1
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..5e9e1b4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,31 @@
+# gPRC for openapitools
+
+API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+## Overview
+These files were generated by the [OpenAPI Generator](https://openapi-generator.tech) project.
+
+- API version: 1.0.0
+- Package version: 
+- Build package: org.openapitools.codegen.languages.ProtobufSchemaCodegen
+
+## Usage
+
+Below are some usage examples for Go and Ruby. For other languages, please refer to https://grpc.io/docs/quickstart/.
+
+### Go
+```
+# assuming `protoc-gen-go` has been installed with `go get -u github.com/golang/protobuf/protoc-gen-go`
+mkdir /var/tmp/go/
+protoc --go_out=/var/tmp/go/ services/*
+protoc --go_out=/var/tmp/go/ models/*
+```
+
+### Ruby
+```
+# assuming `grpc_tools_ruby_protoc` has been installed via `gem install grpc-tools`
+RUBY_OUTPUT_DIR="/var/tmp/ruby/openapitools"
+mkdir $RUBY_OUTPUT_DIR
+grpc_tools_ruby_protoc --ruby_out=$RUBY_OUTPUT_DIR --grpc_out=$RUBY_OUTPUT_DIR/lib services/*
+grpc_tools_ruby_protoc --ruby_out=$RUBY_OUTPUT_DIR --grpc_out=$RUBY_OUTPUT_DIR/lib models/*
+```
diff --git a/models/error.proto b/models/error.proto
new file mode 100644
index 0000000..57d6b77
--- /dev/null
+++ b/models/error.proto
@@ -0,0 +1,21 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/error_error.proto";
+
+message Error {
+
+  ErrorError error = 96784904;
+
+}
diff --git a/models/error_error.proto b/models/error_error.proto
new file mode 100644
index 0000000..f670889
--- /dev/null
+++ b/models/error_error.proto
@@ -0,0 +1,37 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+
+message ErrorError {
+
+  // Error type
+  enum TypeEnum {
+    TypeEnum_CONTEXT_ERROR = 0;
+    TypeEnum_DOMAIN_ERROR = 1;
+    TypeEnum_POLICY_ERROR = 2;
+    TypeEnum_JSON_SCHEMA_ERROR = 3;
+  }
+
+  TypeEnum type = 3575610;
+
+  // Describes an error object
+  string code = 3059181;
+
+  // Path to json schema generating the error. Used only during json schema validation errors
+  string path = 3433509;
+
+  // Human readable message describing the error
+  string message = 418054152;
+
+}
diff --git a/models/get_all_issue_track_response.proto b/models/get_all_issue_track_response.proto
new file mode 100644
index 0000000..a2cc397
--- /dev/null
+++ b/models/get_all_issue_track_response.proto
@@ -0,0 +1,21 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/get_all_issue_track_response_message_inner.proto";
+
+message GetAllIssueTrackResponse {
+
+  repeated GetAllIssueTrackResponseMessageInner message = 418054152;
+
+}
diff --git a/models/get_all_issue_track_response_message_inner.proto b/models/get_all_issue_track_response_message_inner.proto
new file mode 100644
index 0000000..38524ec
--- /dev/null
+++ b/models/get_all_issue_track_response_message_inner.proto
@@ -0,0 +1,30 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/issue_id.proto";
+import public "models/issue_status.proto";
+import public "models/order_id.proto";
+import public "models/timestamp.proto";
+
+message GetAllIssueTrackResponseMessageInner {
+
+  IssueId issueUnderscoreid = 79087824;
+
+  IssueStatus issueUnderscorestatus = 428440101;
+
+  OrderId orderUnderscoreid = 34578371;
+
+  Timestamp timestamp = 55126294;
+
+}
diff --git a/models/issue.proto b/models/issue.proto
new file mode 100644
index 0000000..5893497
--- /dev/null
+++ b/models/issue.proto
@@ -0,0 +1,53 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+
+message Issue {
+
+  // unique issue id
+  int64 issueUnderscoreid = 79087824;
+
+  // timestamp for issue
+  string timestamp = 55126294;
+
+  // Issue Status
+  enum IssueUnderscorestatusEnum {
+    IssueUnderscorestatusEnum_ACKNOWLEDGE = 0;
+    IssueUnderscorestatusEnum_FULFILLED = 1;
+    IssueUnderscorestatusEnum_DECLINED = 2;
+    IssueUnderscorestatusEnum_IN_PROGRESS = 3;
+    IssueUnderscorestatusEnum_RETURN_INITIATED = 4;
+    IssueUnderscorestatusEnum_RETURN_INPROGRESS = 5;
+    IssueUnderscorestatusEnum_RETURN_COMPLETED = 6;
+    IssueUnderscorestatusEnum_RETURN_DECLINED = 7;
+    IssueUnderscorestatusEnum_REFUND_INITIATED = 8;
+    IssueUnderscorestatusEnum_REFUND_INPROGRESS = 9;
+    IssueUnderscorestatusEnum_REFUND_COMPLETED = 10;
+    IssueUnderscorestatusEnum_REFUND_DECLINED = 11;
+  }
+
+  IssueUnderscorestatusEnum issueUnderscorestatus = 428440101;
+
+  // message description the issue
+  string issueUnderscoremessage = 509305805;
+
+  // request constants
+  enum RequestUnderscoreforEnum {
+    RequestUnderscoreforEnum_REFUND = 0;
+    RequestUnderscoreforEnum_RETURN = 1;
+  }
+
+  RequestUnderscoreforEnum requestUnderscorefor = 191040131;
+
+}
diff --git a/models/issue_post_req.proto b/models/issue_post_req.proto
new file mode 100644
index 0000000..d0325ee
--- /dev/null
+++ b/models/issue_post_req.proto
@@ -0,0 +1,21 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/issue_post_req_message.proto";
+
+message IssuePostReq {
+
+  IssuePostReqMessage message = 418054152;
+
+}
diff --git a/models/issue_post_req_message.proto b/models/issue_post_req_message.proto
new file mode 100644
index 0000000..139176b
--- /dev/null
+++ b/models/issue_post_req_message.proto
@@ -0,0 +1,44 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/issue_message.proto";
+import public "models/order_id.proto";
+import public "models/reason_id.proto";
+import public "models/request_for.proto";
+import public "models/timestamp.proto";
+
+message IssuePostReqMessage {
+
+  OrderId orderUnderscoreid = 34578371;
+
+  ReasonId reasonUnderscoreid = 433264200;
+
+  Timestamp timestamp = 55126294;
+
+  IssueMessage issueUnderscoremessage = 509305805;
+
+  RequestFor requestUnderscorefor = 191040131;
+
+  // preference contact detail
+  enum PreferenceUnderscorecontactEnum {
+    PreferenceUnderscorecontactEnum_MOBILE = 0;
+    PreferenceUnderscorecontactEnum_EMAIL = 1;
+  }
+
+  PreferenceUnderscorecontactEnum preferenceUnderscorecontact = 350228344;
+
+  // callback function url
+  string callbackUnderscoreurl = 378636241;
+
+}
diff --git a/models/issue_raise_post202_response.proto b/models/issue_raise_post202_response.proto
new file mode 100644
index 0000000..579fff8
--- /dev/null
+++ b/models/issue_raise_post202_response.proto
@@ -0,0 +1,21 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/issue_raise_post202_response_message.proto";
+
+message IssueRaisePost202Response {
+
+  IssueRaisePost202ResponseMessage message = 418054152;
+
+}
diff --git a/models/issue_raise_post202_response_message.proto b/models/issue_raise_post202_response_message.proto
new file mode 100644
index 0000000..4b1c79a
--- /dev/null
+++ b/models/issue_raise_post202_response_message.proto
@@ -0,0 +1,29 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+
+message IssueRaisePost202ResponseMessage {
+
+  // response code
+  string code = 3059181;
+
+  // response status
+  enum StatusEnum {
+    StatusEnum_ACK = 0;
+    StatusEnum_NACK = 1;
+  }
+
+  StatusEnum status = 355610639;
+
+}
diff --git a/models/issue_track_response.proto b/models/issue_track_response.proto
new file mode 100644
index 0000000..a63c9fe
--- /dev/null
+++ b/models/issue_track_response.proto
@@ -0,0 +1,21 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/issue_track_response_message_inner.proto";
+
+message IssueTrackResponse {
+
+  repeated IssueTrackResponseMessageInner message = 418054152;
+
+}
diff --git a/models/issue_track_response_message_inner.proto b/models/issue_track_response_message_inner.proto
new file mode 100644
index 0000000..53ece68
--- /dev/null
+++ b/models/issue_track_response_message_inner.proto
@@ -0,0 +1,50 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/issue_id.proto";
+import public "models/issue_message.proto";
+import public "models/issue_status.proto";
+import public "models/order_id.proto";
+import public "models/person.proto";
+import public "models/reason.proto";
+import public "models/request_for.proto";
+import public "models/timestamp.proto";
+
+message IssueTrackResponseMessageInner {
+
+  IssueId issueUnderscoreid = 79087824;
+
+  IssueStatus issueUnderscorestatus = 428440101;
+
+  OrderId orderUnderscoreid = 34578371;
+
+  Timestamp timestamp = 55126294;
+
+  Reason reason = 398093757;
+
+  RequestFor requestUnderscorefor = 191040131;
+
+  // preference contact detail
+  enum PerferenceUnderscorecontactEnum {
+    PerferenceUnderscorecontactEnum_MOBILE = 0;
+    PerferenceUnderscorecontactEnum_EMAIL = 1;
+  }
+
+  PerferenceUnderscorecontactEnum perferenceUnderscorecontact = 160080134;
+
+  IssueMessage issueUnderscoremessage = 509305805;
+
+  Person assignedUnderscoreto = 429680549;
+
+}
diff --git a/models/order.proto b/models/order.proto
new file mode 100644
index 0000000..98cff12
--- /dev/null
+++ b/models/order.proto
@@ -0,0 +1,41 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+
+message Order {
+
+  // Unique identifier for Order schema
+  string orderUnderscoreid = 34578371;
+
+  // Order state
+  enum StateEnum {
+    StateEnum_CREATED = 0;
+    StateEnum_PACKED = 1;
+    StateEnum_SHIPPED = 2;
+    StateEnum_OUT_FOR_DELIVERY = 3;
+    StateEnum_DELIVERED = 4;
+    StateEnum_RTO_INITIATED = 5;
+    StateEnum_RTO_DELIVERED = 6;
+    StateEnum_CANCELLED = 7;
+  }
+
+  StateEnum state = 109757585;
+
+  // created at date
+  string createdUnderscoreat = 450625678;
+
+  // updated at date
+  string updatedUnderscoreat = 22101193;
+
+}
diff --git a/models/person.proto b/models/person.proto
new file mode 100644
index 0000000..bec2277
--- /dev/null
+++ b/models/person.proto
@@ -0,0 +1,30 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+
+message Person {
+
+  // Unique identifier for Person schema
+  string personUnderscoreid = 397992267;
+
+  // Name of the person
+  string name = 3373707;
+
+  // Issue assigned to the person
+  string issueUnderscoreassignedUnderscoreid = 6077241;
+
+  // Timestap for person
+  string timestamp = 55126294;
+
+}
diff --git a/models/reason.proto b/models/reason.proto
new file mode 100644
index 0000000..11bb05a
--- /dev/null
+++ b/models/reason.proto
@@ -0,0 +1,31 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+
+message Reason {
+
+  // Unique identifier for reason schema
+  string reasonUnderscoreid = 433264200;
+
+  // Reason to be specified
+  enum ReasonEnum {
+    ReasonEnum_DAMAGED_DURING_SHIPPING = 0;
+    ReasonEnum_PRODUCT_ARRIVED_TOO_LATE = 1;
+    ReasonEnum_CUSTOMER_NO_LONGER_NEEDED_THE_PRODUCT = 2;
+    ReasonEnum_PRODUCT_DID_NOT_MATCH_THE_DESCRIPTION = 3;
+  }
+
+  ReasonEnum reason = 398093757;
+
+}
diff --git a/models/reason_response.proto b/models/reason_response.proto
new file mode 100644
index 0000000..9a2f496
--- /dev/null
+++ b/models/reason_response.proto
@@ -0,0 +1,21 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/reason_response_message_inner.proto";
+
+message ReasonResponse {
+
+  repeated ReasonResponseMessageInner message = 418054152;
+
+}
diff --git a/models/reason_response_message_inner.proto b/models/reason_response_message_inner.proto
new file mode 100644
index 0000000..8312fba
--- /dev/null
+++ b/models/reason_response_message_inner.proto
@@ -0,0 +1,24 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools;
+
+import public "models/reason.proto";
+import public "models/reason_id.proto";
+
+message ReasonResponseMessageInner {
+
+  ReasonId reasonUnderscoreid = 433264200;
+
+  Reason reason = 398093757;
+
+}
diff --git a/services/issue_service.proto b/services/issue_service.proto
new file mode 100644
index 0000000..9670ae9
--- /dev/null
+++ b/services/issue_service.proto
@@ -0,0 +1,42 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools.services.issueservice;
+
+import "google/protobuf/empty.proto";
+import public "models/error.proto";
+import public "models/get_all_issue_track_response.proto";
+import public "models/issue_post_req.proto";
+import public "models/issue_raise_post202_response.proto";
+import public "models/issue_track_response.proto";
+
+service IssueService {
+  rpc IssueRaisePost (IssueRaisePostRequest) returns (IssueRaisePost202Response);
+
+  rpc IssueTrackGet (google.protobuf.Empty) returns (GetAllIssueTrackResponse);
+
+  rpc IssueTrackIssueIdGet (IssueTrackIssueIdGetRequest) returns (IssueTrackResponse);
+
+}
+
+message IssueRaisePostRequest {
+  // Buyer raise an issue for a specific order
+  IssuePostReq issuePostReq = 1;
+
+}
+
+message IssueTrackIssueIdGetRequest {
+  // ID of issue to return
+  int64 issueId = 1;
+
+}
+
diff --git a/services/reason_service.proto b/services/reason_service.proto
new file mode 100644
index 0000000..c891ce3
--- /dev/null
+++ b/services/reason_service.proto
@@ -0,0 +1,23 @@
+/*
+  API for independant issue ticket system
+
+  API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+
+  The version of the OpenAPI document: 1.0.0
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package openapitools.services.reasonservice;
+
+import "google/protobuf/empty.proto";
+import public "models/error.proto";
+import public "models/reason_response.proto";
+
+service ReasonService {
+  rpc ReasonGet (google.protobuf.Empty) returns (ReasonResponse);
+
+}
+
diff --git a/spec.yaml b/spec.yaml
new file mode 100644
index 0000000..914432b
--- /dev/null
+++ b/spec.yaml
@@ -0,0 +1,555 @@
+openapi: 3.0.0
+info:
+  title: API for independant issue ticket system
+  description: API flow for raiseing, tracking and getting specific information regaring the issue raised and order related to that issue.
+  version: 1.0.0
+
+paths:
+  /reason/:
+    get:
+      tags:
+        - Reason
+      description: Fetch all the reasons.
+      responses:
+        '200':
+          description: Reason list
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ReasonResponse'
+        '400':
+          description: Invalid ID supplied
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '401':
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '404':
+          description: Issue not found
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '405':
+          description: Validation exception
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '500':
+          description: Internal Server Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '502':
+          description: Bad Gateway
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '504':
+          description: Gateway Time Out
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+      security:
+        - BearerAuth:
+          - read:issue
+  /issue/raise:
+    post:
+      tags:
+        - Issue
+      description: Raise an issue for a particular Order ID
+      requestBody:
+        description: Buyer raise an issue for a specific order
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/IssuePostReq'
+      responses:
+        '202':
+          description: Acknowledgement of message received
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  message:
+                    type: object
+                    properties:
+                      code:
+                        type: string
+                        example: 7765
+                        description: response code
+                      status:
+                        type: string
+                        enum:
+                          - ACK
+                          - NACK
+                        example: ACK
+                        description: response status
+                    required:
+                      - code
+                      - status
+                required:
+                  - message
+        '400':
+          description: Invalid Order ID
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '401':
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '404':
+          description: Order not found
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '405':
+          description: Validation exception
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '500':
+          description: Internal Server Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '502':
+          description: Bad Gateway
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '504':
+          description: Gateway Time Out
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+      callbacks:
+        issueraise:
+          '{$request.body.callback_url}/issue':
+            post:
+              summary: 'Issue raised against an order'
+              requestBody:
+                required: true
+                content:
+                  application/json:
+                    schema:
+                      $ref: '#/components/schemas/IssuePostReq'
+              responses:
+                200:
+                  description: 'Issue successfully raised'
+                  content:
+                    text/plain:
+                      examples:
+                        success:
+                          value: true
+      security:
+        - BearerAuth:
+          - write:issue
+        - api_key: []
+  /issue/track/:
+    get:
+      tags:
+        - Issue
+      description: Fetch all the issue raised by the user.
+      responses:
+        '200':
+          description: Issue list
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/GetAllIssueTrackResponse'
+        '400':
+          description: Invalid ID supplied
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '401':
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '404':
+          description: Issue not found
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '405':
+          description: Validation exception
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '500':
+          description: Internal Server Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '502':
+          description: Bad Gateway
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '504':
+          description: Gateway Time Out
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+      security:
+        - BearerAuth:
+          - read:issue
+  /issue/track/{issue_id}:
+    get:
+      tags:
+        - Issue
+      description: Get details for the specific raised issue.
+      parameters:
+        - name: issue_id
+          in: path
+          description: ID of issue to return
+          required: true
+          schema:
+            type: integer
+            format: int64
+      responses:
+        '200':
+          description: Status of the Issue
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/IssueTrackResponse'
+        '400':
+          description: Invalid ID supplied
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '401':
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '404':
+          description: Issue not found
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '405':
+          description: Validation exception
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '500':
+          description: Internal Server Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '502':
+          description: Bad Gateway
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '504':
+          description: Gateway Time Out
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+      security:
+        - BearerAuth:
+          - read:issue
+components:
+  schemas:
+    Reason:
+      description: Describes the reasons of issue
+      type: object
+      properties:
+        reason_id:
+          type: string
+          description: Unique identifier for reason schema
+          example: 101
+        reason:
+          type: string
+          description: Reason to be specified
+          enum:
+            - damaged-during-shipping
+            - product-arrived-too-late
+            - customer-no-longer-needed-the-product
+            - product-did-not-match-the-description
+          example: damaged-during-shipping
+    Order:
+      description: Describes the details of an order
+      type: object
+      properties:
+        order_id:
+          type: string
+          description: Unique identifier for Order schema
+          example: 191
+        state:
+          type: string
+          enum:
+            - CREATED
+            - PACKED
+            - SHIPPED
+            - OUT fOR DELIVERY
+            - DELIVERED
+            - RTO INITIATED
+            - RTO DELIVERED
+            - CANCELLED
+          description: Order state
+          example: CREATED
+        created_at:
+          type: string
+          format: date-time
+          description: created at date
+          example: '2022-08-30T17:22:38'
+        updated_at:
+          type: string
+          format: date-time
+          description: updated at date
+          example: '2022-08-30T17:22:38'
+    Issue:
+      type: object
+      properties:
+        issue_id:
+          type: integer
+          format: int64
+          example: 5466654433
+          description: unique issue id
+        timestamp:
+          type: string
+          format: date-time
+          example: '2022-08-30T17:22:38'
+          description: timestamp for issue
+        issue_status:
+          type: string
+          description: Issue Status
+          example: ACKNOWLEDGE
+          enum:
+            - ACKNOWLEDGE
+            - FULFILLED
+            - DECLINED
+            - IN_PROGRESS
+            - RETURN_INITIATED
+            - RETURN_INPROGRESS
+            - RETURN_COMPLETED
+            - RETURN_DECLINED
+            - REFUND_INITIATED
+            - REFUND_INPROGRESS
+            - REFUND_COMPLETED
+            - REFUND_DECLINED
+        issue_message:
+          type: string
+          description: message description the issue
+          example: 'this item is defecitve'
+        request_for:
+          type: string
+          description: request constants
+          enum:
+            - REFUND
+            - RETURN
+          example: REFUND
+    Error:
+      description: Describes an error object
+      type: object
+      properties:
+        error:
+          type: object
+          properties:
+            type:
+              type: string
+              enum:
+                - CONTEXT_ERROR
+                - DOMAIN_ERROR
+                - POLICY_ERROR
+                - JSON_SCHEMA_ERROR
+              description: Error type
+            code:
+              type: string
+              description: Describes an error object
+              example: 8678
+            path:
+              type: string
+              description: Path to json schema generating the error. Used only during json schema validation errors
+            message:
+              type: string
+              description: Human readable message describing the error
+              example: Invalid Request
+          required:
+            - type
+            - code
+      required:
+        - error
+    ReasonResponse:
+      description: Describes the reasons of issue
+      type: object
+      properties:
+        message:
+          type: array
+          items:
+            properties:
+              reason_id:
+                $ref: '#/components/schemas/Reason/properties/reason_id'
+              reason:
+                $ref: '#/components/schemas/Reason/properties/reason'
+            required:
+              - reason_id
+              - reason
+    IssuePostReq:
+      type: object
+      properties:
+        message:
+          type: object
+          properties:
+            order_id:
+              $ref: '#/components/schemas/Order/properties/order_id'
+            reason_id:
+              $ref: '#/components/schemas/Reason/properties/reason_id'
+            timestamp:
+              $ref: '#/components/schemas/Issue/properties/timestamp'
+            issue_message:
+              $ref: '#/components/schemas/Issue/properties/issue_message'
+            request_for:
+              $ref: '#/components/schemas/Issue/properties/request_for'
+            preference_contact:
+              type: string
+              example: MOBILE
+              description: preference contact detail
+              enum:
+               - MOBILE
+               - EMAIL
+            callback_url:
+              type: string
+              format: uri
+              example: 'https://myserver/track/issue'
+              description: callback function url
+          required:
+            - order_id
+            - reason_id
+            - timestamp
+            - issue_message
+            - request_for
+            - callback_url
+      required:
+        - message
+    GetAllIssueTrackResponse:
+      type: object
+      properties:
+        message:
+          type: array
+          items:
+            properties:
+              issue_id:
+                $ref: '#/components/schemas/Issue/properties/issue_id'
+              issue_status:
+                $ref: '#/components/schemas/Issue/properties/issue_status'
+              order_id:
+                $ref: '#/components/schemas/Order/properties/order_id'
+              timestamp:
+                $ref: '#/components/schemas/Issue/properties/timestamp'
+            required:
+              - issue_status
+              - issue_id
+              - order_id
+              - timestamp
+      required:
+        - message
+    IssueTrackResponse:
+      type: object
+      properties:
+        message:
+          type: array
+          items:
+            properties:
+              issue_id:
+                $ref: '#/components/schemas/Issue/properties/issue_id'
+              issue_status:
+                $ref: '#/components/schemas/Issue/properties/issue_status'
+              order_id:
+                $ref: '#/components/schemas/Order/properties/order_id'
+              timestamp:
+                $ref: '#/components/schemas/Issue/properties/timestamp'
+              reason:
+                $ref: '#/components/schemas/Reason/properties/reason'
+              request_for:
+                $ref: '#/components/schemas/Issue/properties/request_for'
+              perference_contact:
+                type: string
+                enum:
+                  - MOBILE
+                  - EMAIL
+                example: EMAIL
+                description: preference contact detail
+              issue_message:
+                $ref: '#/components/schemas/Issue/properties/issue_message'
+              assigned_to:
+                $ref: '#/components/schemas/Person'
+            required:
+              - issue_status
+              - issue_id
+              - order_id
+              - timestamp
+              - reason
+              - request_for
+              - issue_message
+              - assigned_to
+      required:
+        - message
+    Person:
+      description: Person schema details
+      type: object
+      properties:
+        person_id:
+          type: string
+          description: Unique identifier for Person schema
+          example: 193
+        name:
+          type: string
+          description: Name of the person
+          example: Alan
+        issue_assigned_id:
+          type: string
+          description: Issue assigned to the person
+          example: 292
+        timestamp:
+          type: string
+          format: date-time
+          example: '2022-08-30T17:22:38'
+          description: Timestap for person
+  securitySchemes:
+    BearerAuth:
+      type: http
+      scheme: bearer
+    api_key:
+      type: apiKey
+      name: api_key
+      in: header
\ No newline at end of file