PSS Send: target is truncated to 4 characters

[Cafe137]

bee-js/src/modules/pss.ts

Line 31 in e7e81fc

url: `${url}${endpoint}/send/${topic}/${target.slice(0, 4)}`,

[Cafe137]

The truncation is there for a reason. Bee returns a bad request if target is more than 2 bytes. See ethersphere/bee#2382 and https://github.com/ethersphere/bee/blob/master/pkg/api/pss.go#L47.

Slicing and having no documentation on this behaviour in bee-js still seems to be an issue though. It would probably be a better approach to do proper input validation and throw an error if length is too long.