ts: AccountClient isn't properly typed

[callensm]

Querying for accounts like program.account.myAccount.fetch(addr) should return an object that is strictly typed for the myAccount account type definition.

However, the client currently types the object as being the union of properties between all IDL defined account structs.

As seen in the screenshot, the typing on the listing account client includes the properties of other account types.

[callensm]

It is because of:
https://github.com/project-serum/anchor/blob/master/ts/src/program/namespace/account.ts#L46
and
https://github.com/project-serum/anchor/blob/master/ts/src/program/namespace/account.ts#L76

which are saying that the type if an arbitrary index of the accounts array in the IDL, allow the type definition to become the union of all available.

[paul-schaaf]

probably for the same reason, program.methods.accounts({ .. }) is also not typed properly

[callensm]

the MethodsBuilder.accounts function typings should have been fixed in a PR I submitted about a month ago.

[paul-schaaf]

it it fixed for you? its not working for me

[callensm]

ahhh, it works as expected as a chain onto the instruction, e.g.:

program
  .methods
  .initAccount()
  .accounts({ ... })
  // ...

but using it prior to the instruction would cause issues because the typings don't know which instruction has been selected yet to pull the account names for.

[acheroncrypto]

Fixed in #2440