Create a simple messages service (part 3: testing the POST service via Postman app)

1- We begin by making sure our post function is working properly. To do this, we add a post function below our get function from our "express" web app variable:

app.post('/messages', (req,res) => {
  console.log(req.body)
  res.sendStatus(200)
})

2- Make sure nodemon is still running

3- Let's download Postman app to test the post functionality. Then install in the system.

4- Open Postman and choose "Post" from the address dropdown

5- In the request URL field, add your post end point address localhost:3000/messages

6- Go to the Body tab and select JSON from the dropdown

7- Then, in the body area, we add our message object:
{"name": "Jane", "message": "from postman"}


8- Click the Send button within Postman, if the post service works properly, you will see a 200 OK status message

9- If you check the console, you will find an undefined message, this is because we tried to console log the body of the JSON but the body couldn't be read/parsed by Express app.

console.log(req.body)

This will be explained in the next entry.