Sending string values vs. objects

[gotmikhail]

Operating System version: CentOS
Firebase SDK version: 5.4.1
Firebase Product: Cloud Messaging

firebase-admin-node/src/messaging/messaging.ts

Line 715 in fc45c4f

if (!validator.isString(value[subKey])) {

Is there any particular reason why we're restricting the values of the key:value pairs in data to just strings?

If calling https://fcm.googleapis.com/fcm/send directly, you can include objects within data.

[hiranya911]

The FCP server API reference states:

Values in string types are recommended. You have to convert values in objects
or other non-string data types (e.g., integers or booleans) to string.

[hiranya911]

@shasd can you also please take a look?

[stychu]

yeah Im also curious aboyt this. Im facing the problem how to send my data payload from server to the client. Any suggestions on how to stringify/parse the payload automatically so i dont have to remember that data payload can be set as

const payload = {
    data: {
        body: 1
    }
};

and it will be stringified or somthing.

rather than always remeber to make this as string ?

const payload = {
    data: {
        body: '1'
    }
};

[hiranya911]

Perhaps look into TypeScript? Our type definitions enforce this correctly:

[key: string]: string;

[redward]

string;

Any changes ? how to add JSON object within data payload ?

[mohammad-kazemzadeh]

@redward
You'll have to stringify the object.

const payload = {
    data: {
        foo: JSON.stringify({foo: "bar"}),
        body: "Notification Body",
        ...
    }
};