> For the complete documentation index, see [llms.txt](https://docs.fira.money/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fira.money/developers/user-flows.md).

# User Flows

These pages document the end-to-end transaction flows for each user-facing operation in the Fira protocol. Each flow includes a Mermaid sequence diagram, preconditions, relevant view functions, emitted events, and reward share formulas where applicable.

{% hint style="info" %}
All user operations go through the **FiraRouterV4** (except variable-rate lending, which interacts with the LendingMarket directly). Users must approve the relevant tokens to the router before calling.
{% endhint %}

## Common parameter structs

| Struct           | Fields                                                                               |
| ---------------- | ------------------------------------------------------------------------------------ |
| `MarketParams`   | `loanToken`, `collateralToken`, `oracle`, `irm`, `ltv`, `lltv`, `whitelist`          |
| `TokenInput`     | `tokenIn`, `netTokenIn`, `tokenMintFw`, `firaSwap`, `swapData`                       |
| `TokenOutput`    | `tokenOut`, `minTokenOut`, `tokenRedeemFw`, `firaSwap`, `swapData`                   |
| `LimitOrderData` | Pricing limits for BT/FW market swap (interface compat, not used in current version) |

## Flows

* [Borrow at Fixed Rate](/developers/user-flows/borrow-fixed-rate.md)
* [Repay Fixed-Rate Debt](/developers/user-flows/repay-fixed-rate.md)
* [Variable-Rate Lending](/developers/user-flows/variable-rate-lending.md)
* [Repay Variable-Rate Debt](/developers/user-flows/repay-variable-rate.md)
* [FW Deposit & Redeem](/developers/user-flows/fw-deposit-redeem.md)
* [Provide Liquidity](/developers/user-flows/provide-liquidity.md)
* [Remove Liquidity](/developers/user-flows/remove-liquidity.md)
* [Trade BT & CT](/developers/user-flows/trade-bt-ct.md)
* [Pre/Post-Expiry Exits](/developers/user-flows/pre-post-expiry-exits.md)


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