# List the chains Olympex has enabled.
# Needs openssl, curl and OLYMPEX_API_KEY_ID, OLYMPEX_SECRET_KEY, OLYMPEX_PASSPHRASE.
METHOD=GET
ENDPOINT=/chains
QUERY=''
BODY='' # GET has no body: the signature covers the empty string
TS="${OLYMPEX_TIMESTAMP:-$(date +%s)}"
NONCE="${OLYMPEX_NONCE:-$(openssl rand -hex 12)}"
BODY_HASH="$(printf '%s' "$BODY" | openssl dgst -sha256 -binary | openssl base64 -A | tr '+/' '-_' | tr -d '=')"
VALUE_INFO="$(printf '%s\n%s\n%s' "$TS" "$NONCE" "$BODY_HASH")"
MESSAGE="$(printf 'OLPX-HMAC-SHA256-V2\n%s\n%s\n%s\n%s\n%s\n%s' "$TS" "$NONCE" "$METHOD" "/api/v1$ENDPOINT" "$QUERY" "$BODY_HASH")"
curl -sS -X "$METHOD" "https://api-rest.olympex.io/api/v1$ENDPOINT${QUERY:+?$QUERY}" \
  -H "content-type: application/json" \
  -H "x-api-key-id: $OLYMPEX_API_KEY_ID" \
  -H "x-value-info: $(printf '%s' "$VALUE_INFO" | openssl base64 -A)" \
  -H "x-passphrase: $OLYMPEX_PASSPHRASE" \
  -H "x-signature: $(printf '%s' "$MESSAGE" | openssl dgst -sha256 -hmac "$OLYMPEX_SECRET_KEY" -binary | od -An -v -tx1 | tr -d ' \n')"

import { olympexRequest } from "./sign-request.ts"; // /authentication/sign-requests

const { chainIds } = await olympexRequest<{ chainIds: number[] }>("GET", "/chains");
const enabledChains = new Set(chainIds);
console.log(enabledChains.has(137) ? "Offer Polygon" : "Hide Polygon");

from sign_request import olympex_request  # /authentication/sign-requests

chain_ids = olympex_request("GET", "/chains")["chainIds"]
enabled_chains = set(chain_ids)
print("Offer Polygon" if 137 in enabled_chains else "Hide Polygon")

{
  "success": true,
  "data": {
    "chainIds": [
      1,
      10,
      56,
      137,
      8453,
      42161,
      43114,
      59144
    ]
  },
  "meta": {
    "requestId": "E7eeEiPDIAMEP7Q=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}

{
  "success": false,
  "error": {
    "code": "FORBIDDEN",
    "message": "Invalid body hash",
    "details": []
  },
  "meta": {
    "requestId": "ENXGDhsXIAMEMEw=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}

{
  "message": "Forbidden"
}

{
  "success": false,
  "error": {
    "code": "ENABLED_CHAINS_ERROR",
    "message": "Unexpected enabled chains handler error",
    "details": [
      {
        "message": "Unknown error"
      }
    ]
  },
  "meta": {
    "requestId": "EdjY9iZkoAMEVsg=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}