trust-graph/example/aqua/computation.aqua

import "@fluencelabs/trust-graph/trust-graph-api.aqua"
import "@fluencelabs/trust-graph/trust-graph.aqua"
import "@fluencelabs/aqua-lib/builtin.aqua"

export trusted_computation

service CertOp("op"):
  array_length(a: []Certificate) -> u32

service TrustedComputation("op"):
    identity(s: u64) -> u64

func trusted_computation(node: string) -> ?u64, ?string:
    result: ?u64
    error: ?string
    -- on our trusted relay
    on HOST_PEER_ID:
        -- get all certificates issued for given node by our client's peer id
        certs_result <- get_all_certs_from(node, %init_peer_id%)
        if certs_result.success:
            len <- CertOp.array_length(certs_result.certificates)
        -- if there is any certificate node is trusted and computation is possible
           if len != 0:
                on node:
                    result <- TrustedComputation.identity(5)
            else:
                error <<- "there is no certs for this peer"
        else:
            error <<- certs_result.error
    <- result, error