fix: add isomorphic-fetch to webhook (#323)

Author: anacoelhovicente

packages/prime-core/package.json

@@ -62,6 +62,7 @@
     "graphql-iso-date": "3.6.1",
     "graphql-type-json": "^0.2.1",
     "hashids": "1.2.2",
+    "isomorphic-fetch": "^2.1.1",
     "latest": "0.2.0",
     "lodash": "^4.17.11",
     "mailgun-js": "0.22.0",

packages/prime-core/src/utils/processWebhooks.ts

@@ -1,3 +1,4 @@
+import fetch from 'isomorphic-fetch';
 import { getRepository } from 'typeorm';
 import { Webhook } from '../entities/Webhook';
 import { WebhookCall } from '../entities/WebhookCall';