| Solidity Type | Parameter Argument | Example |
|---|---|---|
| int8, int16, int32, int64, int128, int256 | string | "-42" |
| uint8, uint16, uint32, uint64, uint128, uint256 | string | "123456" |
| function | hex-encoded string (4-byte array) | "0xa9059cbb" |
| bool | boolean | true |
| bytes | hex-encoded string | "0x1234abcd" |
| fixed bytes (e.g., bytes32) | hex-encoded string (fixed length) | "0x000000000000000000000000a0b82847ab218b36c1d19d4a2e9eb0ce3606eb48" |
| string | string | "Hello, World!" |
| address | hex-encoded string | "0xBe9895146f7AF43049ca1c1AE358B0541Ea49704" |
| arrays | array with elements following type rules | ["1", "2", "3"] |
| tuple | array of tuple fields | ["John Doe", "25", "0xBe9895146f7AF43049ca1c1AE358B0541Ea49704"] |
OnChain Interactions
Solidity Types Supported in CDP SDK
The following table explains how the CDP SDK handles different Solidity types. For support with other Solidity types, contact us in the #wallet-api channel of the CDP Discord.