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[7] feat(checkout): reconnect exchange accounts + custom destination address#788

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tomiiide wants to merge 4 commits into
checkout/06-playgroundfrom
checkout/07-exchange-destination
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[7] feat(checkout): reconnect exchange accounts + custom destination address#788
tomiiide wants to merge 4 commits into
checkout/06-playgroundfrom
checkout/07-exchange-destination

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@tomiiide

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Which Linear task is linked to this PR?

Why was it implemented this way?

This is PR 7 of 8 in a stacked split of the original feat/widget-checkout branch (formerly the single ~16k-line draft #727). The work is broken into reviewable layers that merge bottom-up into feat/widget-checkout; each PR targets the branch below it.

Two user-facing features layered on the complete flow: reconnecting previously linked exchange accounts, and letting users set their own destination address.

Visual showcase (Screenshots or Videos)

Checklist before requesting a review

  • I have performed a self-review and testing of my code.
  • This pull request is focused and addresses a single problem.
  • If this PR modifies the Widget API or adds new features that require documentation, I have updated the documentation in the public-docs repository.

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changeset-bot Bot commented Jun 15, 2026

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🦋 Changeset detected

Latest commit: 820d119

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 14 packages
Name Type
@lifi/widget-checkout Minor
@lifi/widget-provider Minor
@lifi/widget-provider-mesh Major
@lifi/widget Patch
@lifi/wallet-management Patch
@lifi/widget-provider-bitcoin Patch
@lifi/widget-provider-ethereum Patch
@lifi/widget-provider-solana Patch
@lifi/widget-provider-sui Patch
@lifi/widget-provider-transak Major
@lifi/widget-provider-tron Patch
vite-iframe Patch
nft-checkout Patch
tanstack-router-example Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

@tomiiide tomiiide changed the title feat(checkout): reconnect exchange accounts + custom destination address [7/8] feat(checkout): reconnect exchange accounts + custom destination address Jun 15, 2026
@tomiiide tomiiide force-pushed the checkout/06-playground branch from 8a46b0a to 69cd6ce Compare June 15, 2026 15:49
@tomiiide tomiiide force-pushed the checkout/07-exchange-destination branch 2 times, most recently from 29475b7 to b0b0702 Compare June 17, 2026 10:10
@tomiiide tomiiide force-pushed the checkout/06-playground branch from 69cd6ce to 0a789b7 Compare June 17, 2026 10:10
tomiiide added 4 commits June 17, 2026 12:37
- Capture linked Mesh accounts (MMT tokenId); show one-tap "Pay with
{exchange}" rows on return, with disconnect to switch
- Persist in sessionStorage per integrator+user with TTL expiry
- Pass theme/language/fiat to Mesh Link; add Mesh preconnect origin
- Pause deposit polling while the on-ramp session loads, not just
while the modal is open
- Catalog-skip needs a backend change, tracked in EXBE-372
- Add opt-in `allowUserDestinationAddress`: user sets recipient in-widget
  (paste/ENS or connect wallet) when `toAddress` is omitted
- Validate against destination ecosystem, persist per integrator
- Quote walletless funding using the destination as from-address
- Export `useAddressValidation`/`AddressType` from the widget
addConnectedAccounts no longer prunes every integrator's records on
each write; it sweeps only the key being written (whole-store hygiene
still runs once on rehydrate). Add a regression test.
@tomiiide tomiiide force-pushed the checkout/07-exchange-destination branch from b0b0702 to 820d119 Compare June 17, 2026 10:38
@tomiiide tomiiide force-pushed the checkout/06-playground branch from 0a789b7 to 6f932b9 Compare June 17, 2026 10:38
@tomiiide tomiiide changed the title [7/8] feat(checkout): reconnect exchange accounts + custom destination address [7] feat(checkout): reconnect exchange accounts + custom destination address Jun 18, 2026
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