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@daimo/common

v0.3.11

Published

Daimo shared models and utilities

Downloads

734

Readme

Common data structures

These are used across Daimo app, website, and API server.

Addresses and accounts

We use the Viem Address for ERC-55 capitalized addresses. EAccount represents an Ethereum account with name information. For example,

{ addr: "0x6982EbcC08E938FFBbCc66EdFa28cc6cFed2b741" }
{ addr: "0xc60A0A0E8bBc32DAC2E03030989AD6BEe45A874D", ensName: "dcposch.eth" }
{ addr: "0x2A6d311394184EeB6Df8FBBF58626B085374Ffe7", label: "faucet" }
{ addr: "0x4Fe4e666Be5752f1FdD210F4Ab5DE2Cc26e3E0e8", name: "ansgar" }

The last one is also a DAccount, a subset of EAccount for Daimo accounts, which have a name.

Dollars and amounts

Amounts in Daimo are stored and transmitted in two ways:

  • As bigint amount, eg 1500000
  • As string dollars, eg "1.50" ...each can be losslessly converted to the other. See amountToDollars and dollarsToAmount.

Neither of these are intended for display, which is locale-specific, eg "$1,50".

Respect the naming convention and always refer to amounts in coin units (for USDC, 1000000 = $1). Dollars should always be stored and transmitted as strings to avoid float rounding bugs.

Daimo links

These are app deep links. For example

  • https://daimo.com/link/account/ansgar
  • https://daimo.com/link/request/...
  • https://daimo.com/link/note/...

...all can be parsed or serialized to/from DaimoLink.

These are part of the website as well as the app.