firebase cloud messaging Request contains an invalid argument - firebase

Question

I am getting error while sending message using Firebase cloud messaging admin API.
Error message is below
Caused by: com.google.api.client.http.HttpResponseException: 400 Bad Request
{
"error": {
"code": 400,
"message": "Request contains an invalid argument.",
"errors": [
{
"message": "Request contains an invalid argument.",
"domain": "global",
"reason": "badRequest"
}
],
"status": "INVALID_ARGUMENT"
}
}
Let me put my admin configuration here..
FileInputStream serviceAccount = new FileInputStream("My service accout file.json");
FirebaseOptions options = new FirebaseOptions.Builder().setCredentials(GoogleCredentials.fromStream(serviceAccount))
.setDatabaseUrl("https://deliveryeat-1aa42.firebaseio.com").build();
FirebaseApp.initializeApp(options);
Message sending code is below
// This registration token comes from the client FCM SDKs.
String registrationToken = "YOUR_REGISTRATION_TOKEN";
// See documentation on defining a message payload.
Message message = Message.builder().putData("score", "850").putData("time", "2:45").setToken(registrationToken).build();
// Send a message to the device corresponding to the provided
// registration token.
String response = FirebaseMessaging.getInstance().sendAsync(message).get();
// Response is a message ID string.
System.out.println("Successfully sent message: " + response);
maven dependencies that i am using is following
<dependency>
<groupId>com.google.firebase</groupId>
<artifactId>firebase-admin</artifactId>
<version>5.9.0</version>
</dependency>
So can anyone help me in this? What am I doing wrong?

Answer 1

Yet another cause of this is that your message is too large:
Notification messages can contain an optional data payload. Maximum payload for both message types is 4KB, except when sending messages from the Firebase console, which enforces a 1024 character limit.
https://firebase.google.com/docs/cloud-messaging/concept-options

Answer 2

One possible cause for this is that the client and server are connected to different firebase projects. Project name appears in the google-services.json file on the client and in the credentials json on the server.
Firebase FCM: invalid-argument

Answer 3

I suspect that your registrationToken has an invalid format. It should be 152 characters.
To confirm that, try building your message with setTopic("test") instead of setToken(registrationToken).

Answer 4

In my case, the problem was that certain keys are not allowed in a notification data payload. Specifically, the key 'from' is forbidden.
Firebase data message payload

Answer 5

I had my project name uppercased in the URL (strange, because my project name is actually uppercased)

Answer 6

I received this error trying to set the 'content_available' flag to true (which is what the docs say to do: https://firebase.google.com/docs/cloud-messaging/http-server-ref).
Turns out you need it to be 'content-available' instead.

Answer 7

In my case the problem was in Condition part.
I used invalid characters.
For example wrong: 03:00' in topics

Answer 8

This error also occurs when trying to send a push-notification to an iOS simulator device.