# BLOCKCHAIN_RID_PLACEHOLDER Const · FT4 TypeScript client · Chromia Docs (concept)

> BLOCKCHAIN_ RID_ PLACEHOLDER: "{blockchain_ rid}"

Source: https://docs.chromia.com/pages/ft4-ts-client/variables/authentication.BLOCKCHAIN_RID_PLACEHOLDER/

Variable

# BLOCKCHAIN\_RID\_PLACEHOLDER Const

```signature
BLOCKCHAIN_RID_PLACEHOLDER: "{blockchain_rid}"
```

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-ts-client/variables/authentication.BLOCKCHAIN_RID_PLACEHOLDER.html)Generated API reference, mirrored from the live docs