Webflow upgrade migration

Webflow Upgrade & Migration

Overview

Guide for upgrading the webflow-api SDK and migrating from Webflow Data API v1 to v2. Covers breaking changes, endpoint mapping, import updates, and rollback.

Prerequisites

• Current webflow-api SDK installed
• Git for version control (create upgrade branch)
• Test suite available
• Staging environment for validation

Instructions

Step 1: Assess Current Version

# Check installed version
npm list webflow-api

# Check latest available
npm view webflow-api version

# View changelog
npm view webflow-api --json | jq '.versions[-5:]'

Step 2: SDK Version History

SDK Version	API Version	Node.js	Key Changes
3.x	Data API v2	18+	Current. WebflowClient, auto-retry, bulk ops
2.x	Data API v1/v2	16+	Transitional. Mixed v1/v2 endpoints
1.x	Data API v1	14+	Legacy. Webflow class, no types

v1 endpoints deprecation: late 2026. Migrate before then.

Step 3: API v1 to v2 Migration Map

Base URL Change

v1: https://api.webflow.com
v2: https://api.webflow.com/v2

Authentication Change

// v1 (old) — API key
import Webflow from "webflow-api";
const webflow = new Webflow({ token: "your-api-key" });

// v2 (current) — Access token
import { WebflowClient } from "webflow-api";
const webflow = new WebflowClient({ accessToken: "your-access-token" });

Endpoint Migration Map

Operation	v1 Endpoint	v2 Endpoint
List sites	GET /sites	GET /v2/sites
Get site	GET /sites/{site_id}	GET /v2/sites/{site_id}
Publish site	POST /sites/{site_id}/publish	POST /v2/sites/{site_id}/publish
List collections	GET /sites/{site_id}/collections	GET /v2/sites/{site_id}/collections
List items	GET /collections/{id}/items	GET /v2/collections/{id}/items
Create item	POST /collections/{id}/items	POST /v2/collections/{id}/items
Update item	PUT /collections/{id}/items/{item_id}	PATCH /v2/collections/{id}/items/{item_id}
List products	GET /sites/{site_id}/products	GET /v2/sites/{site_id}/products
List orders	GET /sites/{site_id}/orders	GET /v2/sites/{site_id}/orders

Key v2 differences:

• Update uses PATCH (not PUT) — partial updates only
• Items created as drafts by default (isDraft: true)
• Bulk endpoints added (create/update/delete up to 100 items)
• Live (published) items have separate endpoints (/items/live)
• Scopes required (e.g., cms:read, cms:write)

Step 4: SDK Method Migration

// ===== v1 SDK (old) =====
const webflow = new Webflow({ token: "xxx" });

// List sites
const sites = await webflow.sites();

// List collections
const collections = await webflow.collections({ siteId: "site-123" });

// Get items
const items = await webflow.items({ collectionId: "col-456" });

// Create item
const item = await webflow.createItem({
  collectionId: "col-456",
  fields: { name: "Test", slug: "test", _archived: false, _draft: false },
});

// Update item (full replace)
await webflow.updateItem({
  collectionId: "col-456",
  itemId: "item-789",
  fields: { name: "Updated", slug: "test" },
});

// ===== v2 SDK (current) =====
const webflow = new WebflowClient({ accessToken: "xxx" });

// List sites
const { sites } = await webflow.sites.list();

// List collections
const { collections } = await webflow.collections.list("site-123");

// Get items (staged)
const { items } = await webflow.collections.items.listItems("col-456");

// Get items (live/published)
const { items: live } = await webflow.collections.items.listItemsLive("col-456");

// Create item (draft by default)
const item = await webflow.collections.items.createItem("col-456", {
  fieldData: { name: "Test", slug: "test" },
  isDraft: false,
});

// Update item (partial update via PATCH)
await webflow.collections.items.updateItem("col-456", "item-789", {
  fieldData: { name: "Updated" }, // Only changed fields
});

// NEW: Bulk create (up to 100)
await webflow.collections.items.createItemsBulk("col-456", {
  items: [{ fieldData: { name: "Item 1", slug: "item-1" } }],
});

// NEW: Publish items
await webflow.collections.items.publishItem("col-456", {
  itemIds: ["item-789"],
});

Step 5: Execute Upgrade

# Create upgrade branch
git checkout -b upgrade/webflow-api-v3

# Install latest
npm install webflow-api@latest

# Run tests to find breaking changes
npm test 2>&1 | tee upgrade-test-results.txt

# Fix breaking changes (common patterns above)
# ...

# Verify in staging
npm run test:integration

# Commit and PR
git add -A
git commit -m "upgrade: webflow-api to v3 (Data API v2)"

Step 6: Rollback if Needed

# Rollback to previous version
npm install [email protected] --save-exact

# Or revert the upgrade branch
git revert HEAD

Breaking Change Checklist

• Import changed: Webflow class to WebflowClient named export
• Auth changed: token to accessToken
• Method calls changed: webflow.sites() to webflow.sites.list()
• Field data wrapped in fieldData object
• Update method changed from PUT to PATCH (partial)
• Item status: _draft/_archived to isDraft/isArchived
• Response shape: items now under .items property with .pagination
• Scopes required for all operations

Output

• Updated SDK to latest version
• All v1 endpoints migrated to v2
• Breaking changes fixed
• Tests passing on staging
• Rollback procedure documented

Error Handling

Issue	Cause	Solution
TypeError: Webflow is not a constructor	Using v1 import with v3 SDK	Change to import { WebflowClient }
400 Bad Request on create	Fields not in fieldData wrapper	Wrap fields: { fieldData: { ... } }
405 Method Not Allowed	Using PUT instead of PATCH	Update to PATCH for item updates
Missing items in response	Not checking .items property	Destructure: const { items } = await ...

Resources

• Migration Guide
• SDK Releases
• v2 API Reference
• v1 Deprecation Timeline

Next Steps

For CI integration during upgrades, see webflow-ci-integration.