# getBlockchainApiUrls · FT4 TypeScript client · Chromia Docs (concept)

> getBlockchainApiUrls(
    directoryClient: Queryable,
    blockchainRid: Buffer,
): Promise<string[]> Retrieves the api urls that is available on for this 

Source: https://docs.chromia.com/pages/ft4-ts-client/functions/utils.getBlockchainApiUrls/

Function

# getBlockchainApiUrls

* ```signature
  getBlockchainApiUrls(
      directoryClient: Queryable,
      blockchainRid: Buffer,
  ): Promise<string[]>
  ```

  Retrieves the api urls that is available on for this blockchain

  #### Parameters

  + directoryClient: Queryable

    client configured to the directory chain of the cluster
  + blockchainRid: Buffer

    the blockchain rid of which to get urls for

  #### Returns Promise<string[]>

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