billing V2 frontend

app/javascript/dashboard/api/enterprise/account.js

@@ -23,6 +23,35 @@ class EnterpriseAccountAPI extends ApiClient {
       action_type: action,
     });
   }
+
+  getCreditBalance() {
+    return axios.get(`${this.url}credits_balance`);
+  }
+
+  getV2PricingPlans() {
+    return axios.get(`${this.url}v2_pricing_plans`);
+  }
+
+  getV2TopupOptions() {
+    return axios.get(`${this.url}v2_topup_options`);
+  }
+
+  purchaseTopup(credits) {
+    return axios.post(`${this.url}v2_topup`, { credits });
+  }
+
+  subscribeToV2Plan(pricing_plan_id, quantity = 1) {
+    return axios.post(`${this.url}v2_subscribe`, { pricing_plan_id, quantity });
+  }
+
+  cancelSubscription(options = {}) {
+    const { feedback = null, comment = null } = options;
+
+    return axios.post(`${this.url}cancel_subscription`, {
+      feedback,
+      comment,
+    });
+  }
 }
 
 export default new EnterpriseAccountAPI();