Permission issue in FCM new HTTP V1

[arunagirinathan]

 FCM  URL :  https://fcm.googleapis.com/v1/projects/mynpstpushnotify/messages:send

accessToken: ya29.c.c0ASRK0Gb5hSlo9y1vkRlYfa63Wv1BX0be6-Jm7V1mXPusv0ZMkt7E-qje9rKFkw4uH1X2iOGITNr5_ANDfUn9ZSsyUntG6SMyzQc-mxzKSpdagfbGYBSbd6cGSJGh3WFvwh3DgbQnCZs0tyM4nX-RcSlhmgcA2Jjdm2jDe06DaIVGfel1s784OrCjuDe6_yxkB0RYTbb8pGzijo1_ghhmafXjKOpyEWc3glHmdhWa8lPF7K67Mi879siaResgB6s7dFZ4NOYRWxpa-pJCJPVX8w418tY-axXlAExSFVwtMcBp1PGPzXwjwgeEvxWDWHuDe2g_lZEnRdRwQ8NkmHOQ_FXdtt0p7K68PSW3seZxNhekbdyVt5uMWukG384A9o41dVuZObVBUV2Y59uaX31VoXci71kYzrS8pzI9h9Yz3-nMZ1Jgz179JZt0iWFBcfqRearZ5ScVX7SkqBdqsFr4s1bbkxztz35zzZi6USJ_1kFgrSRO9l4ayvlMe7ug9Bwl3m-kou7uagBw5z6X5RI3l7vl9dak_qMX5mrWzJUtb0Vf3F6mkWJyo7q3fiX_kW-I--_-Qx2uS1b0UXQepqRixVzJrVo5vreeppFWVdgXvqtkbYa54eO26Z0W1RbxgaUYmMR9FQn8aJrqI8pzvi6dMpcx6YjjVw7z00B8WuW_jRViBJxyshVrQuXjx_n9UI35oV5iIslJ2oRXa7R85pq3cVbb1IftexVXhjc4oyu2d06xSk73q4X061kdurzrOmWMpZwb2k7Int-Ft-lvWa0IvvgZ7pljvBk4q41vw1_Jj5Si5g5I-Vrdf_uR2Ipt9XRybXjQVcXcecqF8bbX7jh3YRQ4MWRsUndvzfcvbBako3VZZ_9u3Qh_Z1bQBkn3ahc63S-f1UOcZ0bwVfzexh7M6uU2tn_ha4_7Sb3x1a6pmkYx29VpzYab7Js2x3zwfu-Fu6OdFiMgxX4Qr8qkQgRcqO3_99cmiM5JuwQMQzRp2Fi6xhQW48qZnyU

deviceToken: e76PJmknRXK5mTuFBcFLqo:APA91bGgCzlFVGQE6dz0OnmS-gW1XPVdhqJmZFzGUu4eEVwykYsFN8zwXZF-pwdO5Omr0IY-OK3d7mSdVypgTRBCFrn8c2x2YnqBdWNvoVKtJNzVnO8HAfRS0xQNGRRght5xBJCZdAqb

payload: {
"message": {
"token": "e76PJmknRXK5mTuFBcFLqo:APA91bGgCzlFVGQE6dz0OnmS-gW1XPVdhqJmZFzGUu4eEVwykYsFN8zwXZF-pwdO5Omr0IY-OK3d7mSdVypgTRBCFrn8c2x2YnqBdWNvoVKtJNzVnO8HAfRS0xQNGRRght5xBJCZdAqb",
"notification": {
"title": "Hello",
"body": "World!"
}
}
}

 Getting Below Error :{
"code": 403,
"message": "Permission 'cloudmessaging.messages.create' denied on resource '//cloudresourcemanager.googleapis.com/projects/mynpstpushnotify' (or it may not exist).",
"status": "PERMISSION_DENIED",
"details": [
{
"@type": "type.googleapis.com/google.rpc.ErrorInfo",
"reason": "IAM_PERMISSION_DENIED",
"domain": "cloudresourcemanager.googleapis.com",
"metadata": {
"resource": "projects/mynpstpushnotify",
"permission": "cloudmessaging.messages.create"
}
}
]
}
}

 Project roles and 

[matthewnichols]

Hi @arunagirinathan Not sure of the best answer for your question as it's more Google Cloud related. I would suggest jumping into the Google Cloud Community and posting your question under the appropriate forum and or reaching out to your Google Cloud Support and Account team.  Hope this helps. Thanks, Matt

[joshil]

You will need to give cloudmessaging.messages access to principal://cloudresourcemanager.googleapis.com/projects/mynpstpushnotify . You can also go to the service account and grant access to this principal.