Created mongoose model for comments

comments-service/models/Comment.js

+import mongoose from 'mongoose';
+
+const commentSchema = mongoose.Schema({
+  body: String,
+  creatorId: String,
+  postId: String,
+  createdAt: {
+    type: Date,
+    default: new Date()
+  }
+});
+
+const Comment = mongoose.model("Comment", commentSchema);
+
+export default Comment;
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