# CHAIN_IDS

```ts
const CHAIN_IDS: Record<FilecoinNetworkType, number>;
```

Defined in: [packages/synapse-sdk/src/utils/constants.ts:21](https://github.com/FilOzone/synapse-sdk/blob/1d6c4b9fe34534bf1087dfe41491b72be0b46858/packages/synapse-sdk/src/utils/constants.ts#L21)

Network chain IDs