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Interface representing an FCM legacy API notification message payload. Notification messages let developers send up to 4KB of predefined key-value pairs. Accepted keys are outlined below.

See Build send requests for code samples and detailed documentation.

Indexable

[key: string]: string | undefined

Interface representing an FCM legacy API notification message payload. Notification messages let developers send up to 4KB of predefined key-value pairs. Accepted keys are outlined below.

See Build send requests for code samples and detailed documentation.

Index

Properties

Optional badge

badge: string

The value of the badge on the home screen app icon.

If not specified, the badge is not changed.

If set to 0, the badge is removed.

Platforms: iOS

Optional body

body: string

The notification's body text.

Platforms: iOS, Android, Web

Optional bodyLocArgs

bodyLocArgs: string

Variable string values to be used in place of the format specifiers in body_loc_key to use to localize the body text to the user's current localization.

The value should be a stringified JSON array.

iOS: Corresponds to loc-args in the APNs payload. See