add server to monorepo.

packages/server/src/services/Branches/CRUDBranch.ts

@@ -0,0 +1,30 @@
+import { Inject } from "typedi";
+import { ServiceError } from "exceptions";
+import HasTenancyService from "services/Tenancy/TenancyService";
+import { ERRORS } from "./constants";
+
+export class CURDBranch {
+  @Inject()
+  tenancy: HasTenancyService;
+
+  /**
+   * 
+   * @param branch 
+   */
+  throwIfBranchNotFound = (branch) => {
+    if (!branch) {
+      throw new ServiceError(ERRORS.BRANCH_NOT_FOUND);
+    } 
+  }
+
+  getBranchOrThrowNotFound = async (tenantId: number, branchId: number) => {
+    const { Branch } = this.tenancy.models(tenantId);
+
+    const foundBranch = await Branch.query().findById(branchId);
+
+    if (!foundBranch) {
+      throw new ServiceError(ERRORS.BRANCH_NOT_FOUND);
+    }
+    return foundBranch;
+  } 
+}