php - how to get just success message in firebase cloud message array in flutter

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I implement FCM to send a push notification with PHP which works well but I will like to know if there is a way I can get just the "success":1 from below

{ "multicast_id": 72************, "success": 1, "failure": 0, "canonical_ids": 0, "results": [ { "message_id": "0:161*************" } ] }

Using flutter POST or is there a way I can just let it return just a string saying success.

Answer

Solution:

You Can store your data in a {-code-1} Variable and then use the {-code-2} method of that {-code-3} variable to assure that the "{-code-4}" {-code-5} exists or not. And if it does exists then {-code-6} it using the below code.

{-code-1} m =   { "multicast_id": "72************", "{-code-4}": 1, "failure": 0, "canonical_ids": 0, "results": [ { "message_id": "0:161*************" } ] };
  {-code-6}(m.{-code-2}("{-code-4}"));
  {-code-6}(m['{-code-4}']);

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