Add backend and DB settings

server/routers/dogsitters-finder/model/interaction.js

@@ -0,0 +1,24 @@
+const { Schema, model } = require("mongoose");
+
+const { DSF_AUTH_USER_MODEL_NAME, DSF_INTERACTION_MODEL_NAME } = require("../../const");
+
+const interactionSchema = new Schema({
+  owner_id: {
+    type: Schema.Types.ObjectId,
+    ref: DSF_AUTH_USER_MODEL_NAME,
+    required: true
+  },
+  dogsitter_id: {
+    type: Schema.Types.ObjectId,
+    ref: DSF_AUTH_USER_MODEL_NAME,
+    required: true
+  },
+  timestamp: {
+    type: Date,
+    default: Date.now
+  }
+});
+
+interactionSchema.index({ owner_id: 1, dogsitter_id: 1 });
+
+module.exports.Interaction = model(DSF_INTERACTION_MODEL_NAME, interactionSchema);