Sending Push via Postman using Firebase Messaging

Question

I'm trying to use Postman to send a single Push Notification using Firebase Cloud Messaging service.

This is a working cURL command for the same purposal, on which I'm using as a reference.

curl -X POST --header "Authorization: key=<API_ACCESS_KEY>" --Header "Content-Type: application/json" https://fcm.googleapis.com/fcm/send -d "{\"to\":\"<YOUR_DEVICE_ID_TOKEN>\",\"notification\":{\"body\":\"Firebase\"} \"priority":\"10"}"

What I have done so far..

1 - Set the Headers appropriately

2- At Body , I'm using raw

{
    "to" : "<YOUR_DEVICE_ID_TOKEN>"
    , 

    "notification": {
    "body": "Firebase Cloud Message"
  }

  }

When executing, I'm getting back 401 - Unauthorized.

What's missing to correctly send the push notification?

{ "multicast_id": 4790719999662534961, "success": 0, "failure": 1, "canonical_ids": 0, "results": [ { "error": "InvalidRegistration" } ] } got this error — Vinod Kumar Marupu, Nov 02 '16 at 17:02
This Article will be helpful to you: https://medium.com/android-school/test-fcm-notification-with-postman-f91ba08aacc3 — Alireza Noorali, Jun 03 '19 at 10:19
This answer can help: https://stackoverflow.com/a/62670409/1151916 — Ramis, Jul 01 '20 at 06:47
You can find in this article, [how to fcm send push notifications with postman via firebase messaging API](https://medium.com/@sachinkhard/send-push-notification-via-firebase-by-postman-3f459ea5d170) — Ramesh-X, Jul 02 '20 at 03:32

score 62 · Accepted Answer · answered Aug 08 '16 at 20:02

62

The correct way to set up Authorization key at Header is

key=<API_ACCESS_KEY>

and not only

<API_ACCESS_KEY>

Silly mistake, but since this could be useful for someone for testing Firebase Messaging with Postman I'm leaving the question opened.

answered Aug 08 '16 at 20:02

Machado

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I see, you already have `--header "Authorization: key=` in curl and wrong header in Postman. – CoolMind Jun 25 '19 at 15:40

score 53 · Answer 2 · edited May 11 '23 at 04:26

53

Open Postman, click on Enter request URL textbox, enter firebase url

https://fcm.googleapis.com/fcm/send

Than change request type to POST. See below screenshot:

Now to click on Header and add two params Content-Type and Authorization.

Content-Type= application/json
Authorization=AIzaSyAEb3NhsfGw1ih5mn8cmrGUAXMp86waQ //FCM SERVER KEY

See below screenshot:

Now click on Body than select Raw and add value as object like below

{
  "to": "eB5papU2Xdc:APA91bFFvc3dXru1fN5JY8U19oHIpfGhPUx7Ll7v9vJYTsIGZ15mDwB2Wpep3flLK85IUqqs2WqJwjYHSDYX28oJ1wTP0R2TDc2ba_uVjUauDcp3pCNKr_0KlghOnS",
  "notification": {
    "body": "New announcement assigned",
    "OrganizationId": "2",
    "content_available": true,
    "priority": "high",
    "subtitle": "Elementary School",
    "title": "hello"
  },
  "data": {
    "priority": "high",
    "sound": "app_sound.wav",
    "content_available": true,
    "bodyText": "New Announcement assigned",
    "organization": "Elementary school"
  }
}

Now your Postman would look like this. Click Send button at top right.

Good luck!

edited May 11 '23 at 04:26

CybeX

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answered Apr 22 '19 at 13:30

R15

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Thanks, but currently it shows an error in HTML: "Invalid (legacy) Server-key delivered or Sender is not authorized to perform request.". – CoolMind Jun 25 '19 at 09:55
This works if you use a server key or legacy server key from Cloud Messaging settings (starting from "AAAA" or "Alza"). – CoolMind Jun 25 '19 at 15:33
This sends to the given token only. How can I send it to all users from postman? – Neo Dec 05 '20 at 07:34
This works like a charm and sends notifications instantly. A thing that should be changed is that Title to title ! – clauub Apr 15 '21 at 08:55
This works for me. Thanks.... – Sharath B Naik Dec 22 '21 at 06:06

praveen dewangan · Answer 3 · 2017-04-04T17:09:48.053

36

Posting FCM through POSTMAN

Body - to is token id (should be generated through instance token) write body in raw binary application/json

{
   "to": "cpa8cZPjq-w:APA91bF122f1Rnhu9v47bL
   YMajaNTHAIU5SzItDwTy9o2MCIveG0PlK78VPvp3d
   CqjwnUKZ4
   ngi1trSyM3_aXttW62iknFfbPGtjRLhZr6wq-3qFdboz8gzdOGPz**********",

   "notification": {

    "body": "Hello",
    "title": "This is test message."
   }
   }

header: should have authorization :server key

Content type : application/json after posting here the success message:

edited Apr 04 '17 at 17:09

answered Apr 04 '17 at 17:03

praveen dewangan

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how to get to token? is there an API? – Asymptote Jul 24 '17 at 13:54
Read firebase android developer documentation – praveen dewangan Jul 24 '17 at 16:58
2

am getting sucess=1 but am not getting a notification on mobile – phpdroid Aug 23 '17 at 08:09
Hi phpdroid you need to check complete body, message is passing to your mobile but it is not able to pick the body – praveen dewangan Sep 09 '17 at 04:52
how to send to all users, who installed app, instead of send to topic? – DevOma Dec 14 '18 at 11:41
@phpdroid, see https://www.pluralsight.com/guides/push-notifications-with-firebase-cloud-messaging, https://www.freecodecamp.org/news/why-your-push-notifications-never-see-the-light-of-day-3fa297520793/ and many others. – CoolMind Jun 25 '19 at 09:30
@CoolMind it's been 2 years thanks for suggestions tho! – phpdroid Jun 25 '19 at 09:32
@DevOma for send to all users, is needed to subscribe theme to 'all' topic. and so send to '/topics/all' – roghayeh hosseini Jan 19 '20 at 10:00
how we can convert same thing in nodejs using rest api – Ankit Mishra Apr 24 '21 at 19:40

score 24 · Answer 4 · answered Feb 24 '18 at 08:26

For the new FCM HTTP v1 API, the method of testing push notifications through Postman has changed and the existing solutions only addressed the legacy method of testing push notifications: https://firebase.google.com/docs/cloud-messaging/send-message

To test on Postman with FCM HTTP v1 API, you will need to first fetch a short-lived Oauth 2 token. You can generate one as per the information on the Firebase site here: https://firebase.google.com/docs/cloud-messaging/auth-server

I generated mine using Python using the code below - remember to pip install the package so that you can import the package into your code successfully:

from oauth2client.service_account import ServiceAccountCredentials

def _get_access_token():
  """Retrieve a valid access token that can be used to authorize requests.

  :return: Access token.
  """
  credentials = ServiceAccountCredentials.from_json_keyfile_name(
      'service-account.json', FCM_SCOPE)
  access_token_info = credentials.get_access_token()
  return access_token_info.access_token

Once you have the token - you can insert it into your Postman under authorisation:

IMPORTANT:

In my case, I had struggled a bit to get this to work as I was trying to test a scheduled task that was going to send push notification every few minutes to FCM. I had printed the token to my logs and then taken that token to my Postman for testing, not realising that it already has been used in the scheduled calls to FCM.

In that case, because it has already been used, the token will no longer be valid and my Postman tests were all failing. In this case, you will need to generate fresh tokens for your Postman tests.

I am getting this response but not the notification to the android app. Any idea? — Shridhar, Jan 10 '21 at 15:05
@Shridhar I have the same problem, did you manage to find a solution ? — rgantla, Nov 11 '22 at 21:55

score 12 · Answer 5 · answered Feb 08 '20 at 19:52

12

POST

https://fcm.googleapis.com/fcm/send

Header

Content-Type : application/json 
Authorization : key=your_server_key

Body

{ 
    "to" : "your_token",
    "priority": "high",
    "notification": {
        "title": "Title",
        "body" : "First Notification",
        "text": "Text"
    }
}

answered Feb 08 '20 at 19:52

Aftab Alam

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This method allows it to send to the specified token. How can we send to all the users? – Neo Dec 05 '20 at 07:36
"to": "/topics/All", and subscribe that topic – Taimoor Khan Nov 07 '22 at 10:19

score 11 · Answer 6 · answered Nov 02 '16 at 12:03

11

Look at below screenshot how Authorization key is set

Authorization : **key=**abcdefghijklmnopr2qrst253uv124wxyz_9shg

answered Nov 02 '16 at 12:03

rohitpaniker

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score 6 · Answer 7 · edited Jun 20 '20 at 09:12

Have you check this : Test FCM Notification with POSTMAN!

Send Data Message using HTTP protocol with POSTMAN

You have to copy Legecy Server Key from Firebase Console > Project Settings > Cloud Messaging

Note: Firebase has upgraded our server keys to a new version. You may continue to use your Legacy server key, but it is recommended that you upgrade to the newest version.

Select POST. Enter request URL as https://fcm.googleapis.com/fcm/send
Add Headers Authorization: key=<legacy_server_key> OR Authorization: key=<server_key> and Content-Type: application/json.
Now Select Body > raw > JSON (application/json) and add following code:

    {
         "to" : "YOUR_FCM_TOKEN_WILL_BE_HERE",
         "collapse_key" : "type_a",
         "notification" : {
             "body" : "Body of Your Notification",
             "title": "Title of Your Notification"
         },
         "data" : {
             "body" : "Body of Your Notification in Data",
             "title": "Title of Your Notification in Title",
             "key_1" : "Value for key_1",
             "key_2" : "Value for key_2"
         }
    }

I have created POSTMAN Collection for you, Run in Postman directly.

Hope it will helps you.

Thanks! At least, it shows a more suitable error, than "Invalid (legacy) Server-key...". — CoolMind, Jun 25 '19 at 10:01
This works if you use a server key or legacy server key from Cloud Messaging settings (starting from "AAAA" or "Alza"). — CoolMind, Jun 25 '19 at 15:33
What's the difference between notification and data object? Why do you use both? — clauub, Apr 15 '21 at 08:57

score 4 · Answer 8 · answered Mar 25 '19 at 08:14

4

POST https://fcm.googleapis.com/v1/projects/projectID/messages:send

headers:

Authorization:Bearer ya29.c.ElrXBjdxUzOI................o7_Y2shX2Je4tEe0

body:

  {
      "message": {
        "token": "dlqj05MCnNI:APA91bGhCX6NhT.................QDpKhGheHyhhJ6T",
        "android": {
          "notification": {
            "title": "New Content!",
            "body": "A new video has been uploaded.",
            "icon": "your_icon"
          }
        }
      }
    }

answered Mar 25 '19 at 08:14

anson

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where you got this Bearer token? If I take the server key, FCM throws 401 – Evgenii Vorobei Mar 23 '20 at 13:18
This token is generated by the Firebase Admin SDK. – Sergey Neskoromny Feb 16 '22 at 19:27

score 3 · Answer 9 · answered Jul 01 '20 at 06:46

Steps to send FCM throw Postman:

URL to send: https://fcm.googleapis.com/v1/projects/projectid-34543/messages:send
Request Type: POST
Headers: Content-Type -> application/json & Authorization -> Bearer
In the body section enter APS payload with the right device token.
Click send.

More information here: https://stackoverflow.com/a/62670409/1151916

score 2 · Answer 10 · answered Feb 15 '22 at 14:44

İf you want to send the notification to more than one device, you should use "registration_ids" instead of "to" on the body;

 { 
    "registration_ids":[
"somethingTokens7234134143",
"somethingTokens3452343185"
], 

     "notification" : {
     "body" : "New announcement assigned",
     "content_available" : true,
     "priority" : "high",
     "subtitle":"Elementary School",
     "Title":"hello"
     },
     "data" : {
     "priority" : "high",
     "sound":"app_sound.wav",
     "content_available" : true,
     "bodyText" : "New Announcement assigned",
     "organization" :"Elementary school"
    }
    }

score 2 · Answer 11 · answered Jul 01 '22 at 11:29

2

In my case, Cloud Messaging API (Legacy) was disabled from the Firebase console. Check if that section is enabled in your Firebase console

answered Jul 01 '22 at 11:29

Md. Sulayman

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score 0 · Answer 12 · answered Sep 02 '18 at 18:47

0

Be sure to include the content-type : application/json header

it fails with a misleading error if you don't include the content-type header saying: Error=MissingRegistration

answered Sep 02 '18 at 18:47

Umer Ahmed

1

score -1 · Answer 13 · answered Jun 22 '19 at 18:50

-1

What exactly is Server Key? I used (on a pitcure above) server key, and legacy server key but neither of them work.

Does anybody have clue what is wrong? For token -> I used FCM token I got from firebase messaging like this:

firestoreMessaging.getToken()

answered Jun 22 '19 at 18:50

olga_babic

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I think, you have right header, but maybe a configuration of Firebase project is not done. Have you added an Android or iOS application? – CoolMind Jun 25 '19 at 10:04
Also you should check `google-services.json` in your Android application. You need to download it from Firebase console and paste into Android application, then run on device. – CoolMind Jun 25 '19 at 15:36
This answer is your question: https://stackoverflow.com/questions/56723045/send-push-message-using-firebase-cloud-messaging-what-is-my-server-key. – CoolMind Jun 25 '19 at 15:56

Sending Push via Postman using Firebase Messaging

13 Answers13

Send Data Message using HTTP protocol with POSTMAN

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