Constant DYDX_TESTNET_GRPC_URLS 

pub const DYDX_TESTNET_GRPC_URLS: &[&str];

dYdX v4 testnet gRPC URLs (public validator nodes with fallbacks).

Multiple nodes are provided for redundancy. The client should attempt to connect to nodes in order, falling back to the next if connection fails.

Endpoints sourced from:

• https://docs.dydx.xyz/interaction/endpoints#node

Notes

URLs use domain:port format for tonic gRPC client (TLS is automatic on port 443).