Freezing Mint Transferability

This example demonstrates how to permanently freeze minting capabilities by making mint-related collection approvals immutable.

Overview

By setting permanentlyForbiddenTimes for mint approval updates, you can ensure that no new minting approvals can be added and existing ones cannot be modified.

Permission Configuration

const FullTimeRanges = [
    {
        start: '1',
        end: '18446744073709551615',
    },
];

const collectionPermissions = {
    canDeleteCollection: [],
    canArchiveCollection: [],
    canUpdateStandards: [],
    canUpdateCustomData: [],
    canUpdateManager: [],
    canUpdateCollectionMetadata: [],
    canUpdateValidTokenIds: [],
    canUpdateTokenMetadata: [],
    canUpdateCollectionApprovals: [
        {
            // Which approvals does this permission apply to? Approvals must match ALL criteria.
            fromListId: 'Mint',
            toListId: 'All',
            initiatedByListId: 'All',
            transferTimes: FullTimeRanges,
            tokenIds: FullTimeRanges,
            ownershipTimes: FullTimeRanges,
            approvalId: 'All',

            // What is status of this approval at any given time? (Unhandled = soft-enabled)
            permanentlyPermittedTimes: [],
            permanentlyForbiddenTimes: FullTimeRanges,
        },
    ],
};

Implementation

const createCollection = {
    // ... other collection fields
    collectionPermissions,
    collectionApprovals: [
        // Include any initial mint approvals here
        // These will be the ONLY mint approvals ever possible
        {
            fromListId: 'Mint',
            toListId: 'creator-address',
            // ... initial mint approval configuration
        },
    ],
};

Important Notes

⚠️ Irreversible Action

Once set to permanently forbidden, mint permissions cannot be restored. Carefully configure initial mint approvals before freezing. Ensure all mint approvals you will ever need are set.

Related Examples

• Building Collection Permissions - General permission patterns

• Building Collection Approvals - Approval configuration