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`EIP 712`

Definition

Zabi supports hashing and encoding of EIP712 typed data according to the EIP712 Specification

Usage `hashTypedData`

This takes in 5 arguments.

an allocator used to manage all memory allocations
a set of EIP712 types.
the primary type to hash against
the domain data. This can be null if you don't have it.
the message with the values that will be encoded and hashed

hash_typed_data.zig

const hash = try hashTypedData(
  testing.allocator, 
  types, 
  "Mail", 
  domain, 
  message
);
 
const hex = try std.fmt.allocPrint(testing.allocator, "0x{s}", .{std.fmt.fmtSliceHexLower(&hash)});
defer testing.allocator.free(hex);
 
try testing.expectEqualStrings("0xbe609aee343fb3c4b28e1df9e632fca64fcfaede20f02e86244efddf30957bd2", hex);

Returns

Type: []u8 -> This is not hex encoded

Usage `hashStruct`

This takes in 4 arguments.

an allocator used to manage all memory allocations
a set of EIP712 types.
the primary type to hash against
the message with the values that will be encoded and hashed

hash_typed_data.zig

const hash = try hashStruct(
  testing.allocator, 
  types, 
  "Mail", 
  message
);
 
const hex = try std.fmt.allocPrint(testing.allocator, "0x{s}", .{std.fmt.fmtSliceHexLower(&hash)});
defer testing.allocator.free(hex);
 
try testing.expectEqualStrings("0xc52c0ee5d84264471806290a3f2c4cecfc5490626bf912d01f240d7a274b371e", hex);

Returns

Type: []u8 -> This is not hex encoded