fix: change content type to json (#885)

Author: oscb

example/e2e/mockServer.js

@@ -13,12 +13,12 @@ export const startServer = async (mockServerListener) => {
   return new Promise((resolve) => {
     const app = express();
 
-    app.use(bodyParser.text());
+    app.use(bodyParser.json());
 
     // Handles batch events
     app.post('/events', (req, res) => {
       console.log(`➡️  Received request`);
-      const body = JSON.parse(req.body);
+      const body = req.body;
       mockServerListener(body);
 
       res.status(200).send({ mockSuccess: true });

packages/core/src/__tests__/api.test.ts

@@ -69,7 +69,7 @@ describe('#sendEvents', () => {
         writeKey: 'SEGMENT_KEY',
       }),
       headers: {
-        'Content-Type': 'text/plain',
+        'Content-Type': 'application/json; charset=utf-8',
       },
     });
   }

packages/core/src/api.ts

@@ -17,7 +17,7 @@ export const uploadEvents = async ({
       writeKey: writeKey,
     }),
     headers: {
-      'Content-Type': 'text/plain',
+      'Content-Type': 'application/json; charset=utf-8',
     },
   });
 };