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---

title: TypeScript Interfaces description: Complete TypeScript definitions for all Billing SDK components and data structures

Plan Interface

The Plan interface is used to define the structure of a pricing plan and is shared across all the PricingTable components.

interface Plan {
    id: string
    title: string
    description: string
    highlight?: boolean
    type?: 'monthly' | 'yearly'
    currency?: string
    monthlyPrice: string
    yearlyPrice: string
    buttonText: string
    badge?: string
    features: {
        name: string
        icon: string
        iconColor?: string
    }[],
    benefits?: string[]
}

Whenever you add a new component which uses the Plan interface, a file /lib/billingsdk-config.ts will be created with the plans array.

CurrentPlan Interface

The CurrentPlan interface is used to define the structure of a user's current subscription plan and billing information. It combines plan details with subscription-specific data.

interface CurrentPlan {
    plan: Plan
    type: 'monthly' | 'yearly' | 'custom'
    price?: string
    nextBillingDate: string
    paymentMethod: string
    status: 'active' | 'inactive' | 'past_due' | 'cancelled'
}

Properties

• plan: The complete Plan object containing plan details
• type: The billing cycle type (monthly, yearly, or custom)
• price: Optional current price (useful for custom pricing)
• nextBillingDate: The date when the next billing cycle starts
• paymentMethod: The payment method used for the subscription
• status: The current status of the subscription plan

A sample of the /lib/billingsdk-config.ts file is:

// lib/billingsdk-config.ts
export interface Plan {
    id: string
    title: string
    description: string
    highlight?: boolean
    type?: 'monthly' | 'yearly'
    currency?: string
    monthlyPrice: string
    yearlyPrice: string
    buttonText: string
    badge?: string
    features: {
        name: string
        icon: string
        iconColor?: string
    }[]
}

export interface CurrentPlan {
    plan: Plan
    type: 'monthly' | 'yearly' | 'custom'
    price?: string
    nextBillingDate: string
    paymentMethod: string
    status: 'active' | 'inactive' | 'past_due' | 'cancelled'
}

export const plans: Plan[] = [
    {
        id: 'starter',
        title: 'Starter',
        description: 'For developers testing out Liveblocks locally.',
        currency: '$',
        monthlyPrice: '0',
        yearlyPrice: '0',
        buttonText: 'Start today for free',
        features: [
            {
                name: 'Presence',
                icon: "check",
                iconColor: 'text-green-500'
            },
            {
                name: 'Comments',
                icon: "check",
                iconColor: 'text-orange-500'
            },
            {
                name: 'Notifications',
                icon: "check",
                iconColor: 'text-teal-500'
            },
            {
                name: 'Text Editor',
                icon: "check",
                iconColor: 'text-blue-500'
            },
            {
                name: 'Sync Datastore',
                icon: "check",
                iconColor: 'text-zinc-500'
            }
        ],
    },
    {
        id: 'pro',
        title: 'Pro',
        description: 'For companies adding collaboration in production.',
        currency: '$',
        monthlyPrice: '20',
        yearlyPrice: '199',
        buttonText: 'Sign up',
        badge: 'Most popular',
        highlight: true,
        features: [
            {
                name: 'Presence',
                icon: "check",
                iconColor: 'text-green-500'
            },
            {
                name: 'Comments',
                icon: "check",
                iconColor: 'text-orange-500'
            },
            {
                name: 'Notifications',
                icon: "check",
                iconColor: 'text-teal-500'
            },
            {
                name: 'Text Editor',
                icon: "check",
                iconColor: 'text-blue-500'
            },
            {
                name: 'Sync Datastore',
                icon: "check",
                iconColor: 'text-zinc-500'
            }
        ],
    },
    {
        id: 'enterprise',
        title: 'Enterprise',
        description: 'For organizations that need more support and compliance features.',
        currency: '$',
        monthlyPrice: 'Custom',
        yearlyPrice: 'Custom',
        buttonText: 'Contact sales',
        features: [
            {
                name: 'Presence',
                icon: "check",
                iconColor: 'text-green-500'
            },
            {
                name: 'Comments',
                icon: "check",
                iconColor: 'text-orange-500'
            },
            {
                name: 'Notifications',
                icon: "check",
                iconColor: 'text-teal-500'
            },
            {
                name: 'Text Editor',
                icon: "check",
                iconColor: 'text-blue-500'
            },
            {
                name: 'Sync Datastore',
                icon: "check",
                iconColor: 'text-zinc-500'
            }
        ],
    }
];

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