The canonical error codes for gRPC APIs.
Sometimes multiple error codes may apply. Services should return the most specific error code that applies. For example, prefer OUT_OF_RANGE
over FAILED_PRECONDITION
if both codes apply. Similarly prefer NOT_FOUND
or ALREADY_EXISTS
over FAILED_PRECONDITION
.
OK
Not an error; returned on success.
HTTP Mapping: 200 OK
CANCELLED
The operation was cancelled, typically by the caller.
HTTP Mapping: 499 Client Closed Request
UNKNOWN
Unknown error. For example, this error may be returned when a Status
value received from another address space belongs to an error space that is not known in this address space. Also errors raised by APIs that do not return enough error information may be converted to this error.
HTTP Mapping: 500 Internal Server Error
INVALID_ARGUMENT
The client specified an invalid argument. Note that this differs from FAILED_PRECONDITION
. INVALID_ARGUMENT
indicates arguments that are problematic regardless of the state of the system (e.g., a malformed file name).
HTTP Mapping: 400 Bad Request
DEADLINE_EXCEEDED
The deadline expired before the operation could complete. For operations that change the state of the system, this error may be returned even if the operation has completed successfully. For example, a successful response from a server could have been delayed long enough for the deadline to expire.
HTTP Mapping: 504 Gateway Timeout
NOT_FOUND
Some requested entity (e.g., file or directory) was not found.
Note to server developers: if a request is denied for an entire class of users, such as gradual feature rollout or undocumented allowlist, NOT_FOUND
may be used. If a request is denied for some users within a class of users, such as user-based access control, PERMISSION_DENIED
must be used.
HTTP Mapping: 404 Not Found
ALREADY_EXISTS
The entity that a client attempted to create (e.g., file or directory) already exists.
HTTP Mapping: 409 Conflict
PERMISSION_DENIED
The caller does not have permission to execute the specified operation. PERMISSION_DENIED
must not be used for rejections caused by exhausting some resource (use RESOURCE_EXHAUSTED
instead for those errors). PERMISSION_DENIED
must not be used if the caller can not be identified (use UNAUTHENTICATED
instead for those errors). This error code does not imply the request is valid or the requested entity exists or satisfies other pre-conditions.
HTTP Mapping: 403 Forbidden
UNAUTHENTICATED
The request does not have valid authentication credentials for the operation.
HTTP Mapping: 401 Unauthorized
RESOURCE_EXHAUSTED
Some resource has been exhausted, perhaps a per-user quota, or perhaps the entire file system is out of space.
HTTP Mapping: 429 Too Many Requests
FAILED_PRECONDITION
The operation was rejected because the system is not in a state required for the operation's execution. For example, the directory to be deleted is non-empty, an rmdir operation is applied to a non-directory, etc.
Service implementors can use the following guidelines to decide between FAILED_PRECONDITION
, ABORTED
, and UNAVAILABLE
: (a) Use UNAVAILABLE
if the client can retry just the failing call. (b) Use ABORTED
if the client should retry at a higher level. For example, when a client-specified test-and-set fails, indicating the client should restart a read-modify-write sequence. (c) Use FAILED_PRECONDITION
if the client should not retry until the system state has been explicitly fixed. For example, if an "rmdir" fails because the directory is non-empty, FAILED_PRECONDITION
should be returned since the client should not retry unless the files are deleted from the directory.
HTTP Mapping: 400 Bad Request
ABORTED
The operation was aborted, typically due to a concurrency issue such as a sequencer check failure or transaction abort.
See the guidelines above for deciding between FAILED_PRECONDITION
, ABORTED
, and UNAVAILABLE
.
HTTP Mapping: 409 Conflict
OUT_OF_RANGE
The operation was attempted past the valid range. E.g., seeking or reading past end-of-file.
Unlike INVALID_ARGUMENT
, this error indicates a problem that may be fixed if the system state changes. For example, a 32-bit file system will generate INVALID_ARGUMENT
if asked to read at an offset that is not in the range [0,2^32-1], but it will generate OUT_OF_RANGE
if asked to read from an offset past the current file size.
There is a fair bit of overlap between FAILED_PRECONDITION
and OUT_OF_RANGE
. We recommend using OUT_OF_RANGE
(the more specific error) when it applies so that callers who are iterating through a space can easily look for an OUT_OF_RANGE
error to detect when they are done.
HTTP Mapping: 400 Bad Request
UNIMPLEMENTED
The operation is not implemented or is not supported/enabled in this service.
HTTP Mapping: 501 Not Implemented
INTERNAL
Internal errors. This means that some invariants expected by the underlying system have been broken. This error code is reserved for serious errors.
HTTP Mapping: 500 Internal Server Error
UNAVAILABLE
The service is currently unavailable. This is most likely a transient condition, which can be corrected by retrying with a backoff. Note that it is not always safe to retry non-idempotent operations.
See the guidelines above for deciding between FAILED_PRECONDITION
, ABORTED
, and UNAVAILABLE
.
HTTP Mapping: 503 Service Unavailable
DATA_LOSS
Unrecoverable data loss or corruption.
HTTP Mapping: 500 Internal Server Error
ErrorInfoDescribes the cause of the error with structured details.
Example of an error when contacting the "pubsub.googleapis.com" API when it is not enabled:
{ "reason": "API_DISABLED"
"domain": "googleapis.com"
"metadata": {
"resource": "projects/123",
"service": "pubsub.googleapis.com"
}
}
This response indicates that the pubsub.googleapis.com API is not enabled.
Example of an error that is returned when attempting to create a Spanner instance in a region that is out of stock:
{ "reason": "STOCKOUT"
"domain": "spanner.googleapis.com",
"metadata": {
"availableRegions": "us-central1,us-east2"
}
}
Fields reason
string
The reason of the error. This is a constant value that identifies the proximate cause of the error. Error reasons are unique within a particular domain of errors. This should be at most 63 characters and match a regular expression of [A-Z][A-Z0-9_]+[A-Z0-9]
, which represents UPPER_SNAKE_CASE.
domain
string
The logical grouping to which the "reason" belongs. The error domain is typically the registered service name of the tool or product that generates the error. Example: "pubsub.googleapis.com". If the error is generated by some common infrastructure, the error domain must be a globally unique value that identifies the infrastructure. For Google API infrastructure, the error domain is "googleapis.com".
metadata
map<string, string>
Additional structured details about this error.
Keys must match a regular expression of [a-z][a-zA-Z0-9-_]+
but should ideally be lowerCamelCase. Also, they must be limited to 64 characters in length. When identifying the current value of an exceeded limit, the units should be contained in the key, not the value. For example, rather than {"instanceLimit": "100/request"}
, should be returned as, {"instanceLimitPerRequest": "100"}
, if the client exceeds the number of instances that can be created in a single (batch) request.
Provides links to documentation or for performing an out of band action.
For example, if a quota check failed with an error indicating the calling project hasn't enabled the accessed service, this can contain a URL pointing directly to the right place in the developer console to flip the bit.
Fieldslinks[]
URL(s) pointing to additional information on handling the current error.
LinkDescribes a URL link.
Fieldsdescription
string
Describes what the link offers.
url
string
The URL of the link.
StatusThe Status
type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by gRPC. Each Status
message contains three pieces of data: error code, error message, and error details.
You can find out more about this error model and how to work with it in the API Design Guide.
Fieldscode
int32
The status code, which should be an enum value of google.rpc.Code
.
message
string
A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details
field, or localized by the client.
details[]
A list of messages that carry the error details. There is a common set of message types for APIs to use.
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4