const url = ' https://data.predictefy.com/api/example/fetchOrderBook?outcomeId=example&side=bids ' ;
const options = {method: ' GET ' , headers: {Authorization: ' Bearer <token> ' }} ;
const response = await fetch ( url , options );
const data = await response . json ();
--url ' https://data.predictefy.com/api/example/fetchOrderBook?outcomeId=example&side=bids ' \
--header ' Authorization: Bearer <token> '
Without at/since, this is the fresh live order-book path (cached and coalesced). With at, reads may serve the latest persisted snapshot whose timestamp is <= at. With since and no until, reads serves the first persisted snapshot whose timestamp is >= since. With since+until, reads serves an ASC array of persisted snapshots inside the inclusive window, capped by limit (default 100, max 1000). These archive responses are stored top-20 snapshots captured after HISTORY_ENABLE_BOOK_CAPTURE started, not delta-reconstructed L2 histories; meta.reconstruction discloses snapshot-series. at and since are mutually exclusive. side=bids|asks strips the other side on archived responses.
since
One of:
Archive start time. Alone returns the nearest stored snapshot at or after since.
until
One of:
Archive end time. Requires since; returns stored snapshots with ts <= until.
side
string
Allowed values: bids asks
Archived responses only: return only bids or asks and strip the other side.
limit
integer
>= 1 <= 1000
Depth levels for single-book responses. For since+until ranges, max snapshots returned.
Order book, or an ASC stored-snapshot series when since+until is supplied.
Media type application/json
object data
One of:
object isNegRisk
Whether the venue marks this snapshot as a negative-risk market.
boolean
lastTradePrice
Last traded price from venues that include it with the book snapshot.
number
provenance
object Venue-rest — per-request REST via the venue adapter (all 16 venues; the default stamp).
predictefy-live — served from the live WebSocket hub or live order book.
archive — served from persisted raw_trades or L2-snapshot archives.
fixture — offline sample data, never production venues.
string
Allowed values: venue-rest predictefy-live archive fixture
sourceMetadata
Honesty flags (synthetic, cached) or archive row metadata (archivedSource, depth, quality).
object
Array<object>
object isNegRisk
Whether the venue marks this snapshot as a negative-risk market.
boolean
lastTradePrice
Last traded price from venues that include it with the book snapshot.
number
provenance
object Venue-rest — per-request REST via the venue adapter (all 16 venues; the default stamp).
predictefy-live — served from the live WebSocket hub or live order book.
archive — served from persisted raw_trades or L2-snapshot archives.
fixture — offline sample data, never production venues.
string
Allowed values: venue-rest predictefy-live archive fixture
sourceMetadata
Honesty flags (synthetic, cached) or archive row metadata (archivedSource, depth, quality).
object
meta
object coverage
First/last stored snapshot returned for the requested capture-start window.
object provenance
object Archive — served from persisted raw_trades or L2-snapshot archives.
string
Allowed values: archive
reconstruction
Stored top-20 snapshots, not delta-reconstructed L2.
string
Allowed values: snapshot-series
Example "reconstruction" : " snapshot-series "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "
Media type application/json
object object string
Allowed values: VALIDATION_ERROR NOT_SUPPORTED ACCOUNTS_UNSUPPORTED VENUE_NOT_AVAILABLE EXCHANGE_NOT_AVAILABLE MARKET_NOT_FOUND EVENT_NOT_FOUND CLUSTER_NOT_FOUND OUTCOME_NOT_FOUND SNAPSHOT_NOT_FOUND CATALOG_UNAVAILABLE CATALOG_QUERY_TOO_BROAD HISTORY_UNAVAILABLE ROUTE_NOT_FOUND INTERNAL AUTHENTICATION_ERROR PERMISSION_DENIED RATE_LIMIT_EXCEEDED NETWORK_ERROR NOT_FOUND BAD_REQUEST BRIDGE_UNSUPPORTED BRIDGE_UPSTREAM BRIDGE_PROVIDER_UNAVAILABLE BRIDGE_TRANSACTION_NOT_FOUND BRIDGE_SESSION_NOT_FOUND TRANSFER_PLAN_UNSUPPORTED UNAUTHORIZED SCOPE_MISSING PLAN_REQUIRED INSUFFICIENT_CREDITS RATE_LIMITED GEO_BLOCKED VENUE_REGION_BLOCKED IDEMPOTENCY_KEY_REQUIRED IDEMPOTENCY_CONFLICT ARTIFACT_VERSION_CONFLICT SPEND_CAP_EXCEEDED ARTIFACT_BOUNDS_VIOLATION ARTIFACT_INTEGRITY_MISMATCH VENUE_NOT_SUPPORTED EXECUTION_NOT_FOUND NOT_IMPLEMENTED VENUE_CREDENTIAL_REJECTED VENUE_CREDENTIAL_BREAKER_OPEN GEMINI_TIME_NONCE_REQUIRED GEMINI_HEARTBEAT_KEY_UNSUPPORTED VENUE_RELAY_FAILED EXEC_UNAVAILABLE RAIN_INVALID_OPTION RAIN_INVALID_SIDE RAIN_INVALID_PRICE RAIN_INVALID_AMOUNT RAIN_SLIPPAGE_REQUIRED RAIN_INVALID_DEADLINE RAIN_PHASE_NOT_OPEN RAIN_ORDER_LIMIT_REACHED RAIN_POOL_SAFETY_CHECK_FAILED PLATFORM_UNAVAILABLE PACK_NOT_FOUND BILLING_UNAVAILABLE BILLING_CUSTOMER_REQUIRED INVALID_SIGNATURE FEED_NOT_FOUND FEEDS_UNAVAILABLE FEED_UPSTREAM MATCHES_UNAVAILABLE
Always present on errors; quote this id when reporting a failed request.
string
exchange
Present only when a venue error is attributed to a specific exchange.
string
Example "code" : " VALIDATION_ERROR "