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Response codes

The following lists the response codes returned by Transloadit, which you can use to handle errors.

An Assembly is running if ok is either ASSEMBLY_UPLOADING or ASSEMBLY_EXECUTING. All other states mean the Assembly has completed. If it completed in error, the error property will be set. More details on ok and error codes can be found below.

OK codes

OK codes are always returned via ok key, like this: { ok: "{OK_CODE}" }.

  • ASSEMBLY_CANCELED
    The Assembly was canceled.
  • ASSEMBLY_COMPLETED
    The Assembly was completed successfully.
  • ASSEMBLY_EXECUTING
    The Assembly is currently being executed.
  • ASSEMBLY_REPLAYING
    The Assembly is being replayed.
  • ASSEMBLY_UPLOADING
    The Assembly is still in the process of being uploaded.
  • REQUEST_ABORTED
    The upload connection was closed or timed out before receiving all data.

Error codes

Error codes are always returned via the error key, like this: { error: "{ERROR_CODE}" }.

  • ACTIVE_ASSEMBLIES_FETCHED
    Number of active Assemblies fetched.
  • ADMIN_PERMISSIONS_REQUIRED
    You require admin permissions to do this.
  • ASSEMBLIES_UPDATED
    The Assemblies have been updated.
  • You are not allowed to access this Assembly because it is not yours.
  • ASSEMBLY_CANNOT_BE_REPLAYED
    The Assembly cannot be replayed.
  • ASSEMBLY_COULD_NOT_BE_CREATED
    The Assembly could not be created.
  • ASSEMBLY_CRASHED
    The process managing this Assembly crashed and could not be restored.
  • ASSEMBLY_DISALLOWED_ROBOTS_USED
    Your Assembly uses one or more disallowed Robots.
  • ASSEMBLY_EMPTY_STEPS
    Your Assembly {steps: ...} parameter is empty.
  • ASSEMBLY_EXECUTION_PROGRESS_NOT_ENABLED
    For this Assembly, retrieving execution progress has not been enabled.
  • ASSEMBLY_EXPIRED
    The Assembly expired.
  • ASSEMBLY_FILE_ACCEPTED
    The Assembly accepted the added file.
  • ASSEMBLY_FILE_NOT_RESERVED
    A place for this file must be reserved before adding it.
  • ASSEMBLY_FILE_RESERVED
    The Assembly reserved a space for this file.
  • ASSEMBLY_INFINITE
    Your Assembly appears to be infinite, at least one input file went through the same step twice.
  • ASSEMBLY_INVALID_NOTIFY_URL
    The Assembly had a malformed notify_url. They must be strings.
  • ASSEMBLY_INVALID_NUM_EXPECTED_UPLOAD_FILES_PARAM
    Your 'num_expected_upload_files' parameter value is invalid. It must be a number greater than or equal zero.
  • ASSEMBLY_INVALID_STEPS
    Your Assembly {steps: ...} is a non-object value.
  • ASSEMBLY_JOB_ENQUEUE_ERROR
    There was a problem enqueuing a job for your Assembly. Please reach out to support.
  • ASSEMBLY_LIST_ERROR
    Bad parameters
  • ASSEMBLY_MEMORY_LIMIT_EXCEEDED
    The Assembly memory limit of 8MB was exceeded. Please try to import less files and/or upload a zip file with less files.
  • ASSEMBLY_NOTIFICATIONS_LIST_ERROR
    The Assembly notifications could not be listed.
  • ASSEMBLY_NOTIFICATION_LIST_ERROR
    Bad parameters
  • ASSEMBLY_NOTIFICATION_NOT_PERSISTED
    There was a problem saving the Assembly notification. Please get in touch with support.
  • ASSEMBLY_NOTIFICATION_NOT_REPLAYED
    The Assembly notification could not be replayed.
  • ASSEMBLY_NOT_CAPABLE
    This Assembly is not capable of handling the requested endpoint.
  • ASSEMBLY_NOT_FINISHED
    The Assembly is not finished yet and thus cannot be replayed yet.
  • ASSEMBLY_NOT_FOUND
    The Assembly you requested crashed or does not exist.
  • ASSEMBLY_NOT_REPLAYED
    The Assembly could not be replayed
  • ASSEMBLY_NO_CHARGEABLE_STEP
    An Assembly must have at least one transcoding or export Step.
  • ASSEMBLY_NO_NOTIFY_URL
    The Assembly had not configured any notify_url.
  • ASSEMBLY_NO_STEPS
    Your Assembly does not include a {steps: ...} parameter.
  • ASSEMBLY_PROGRESS_UPDATED
    The Assembly's upload progress has been updated.
  • ASSEMBLY_ROBOT_MISSING
    This Assembly must make use of specific robots as per the contract.
  • ASSEMBLY_SATURATED
    This Assembly has already received all expected file uploads.
  • ASSEMBLY_STATS_INVALID_TIME
    since time is missing or incorrect
  • ASSEMBLY_STATS_MISSING_REGION
    Must provide a specific region, or "all"
  • ASSEMBLY_STATUS_FETCHING_RATE_LIMIT_REACHED
    You are fetching status for the same Assembly too often. Please slow down.
  • ASSEMBLY_STATUS_NOT_FOUND
    The status for the Assembly you requested could not be found.
  • ASSEMBLY_STATUS_PARSE_ERROR
    There was a problem parsing the status json of the Assembly.
  • ASSEMBLY_STEP_INVALID
    One of your {steps: ...} parameters is a non-object value.
  • ASSEMBLY_STEP_INVALID_ROBOT
    One of your step parameters includes an non-string {robot: ...} value.
  • ASSEMBLY_STEP_INVALID_USE
    One of your step parameters either includes a non-array {use: ...} value or the members of the "use" array are not strings or objects. If they are objects, they must contain a "name" property.
  • ASSEMBLY_STEP_NO_ROBOT
    One of your step parameters did not include a {robot: ...} key.
  • ASSEMBLY_STEP_UNKNOWN_ROBOT
    One of your step parameters is referencing an unknown {robot: ...}.
  • ASSEMBLY_STEP_UNKNOWN_USE
    One of your step parameters references an unknown {use: ...} value.
  • ASSEMBLY_URL_TRANSFORM_MISSING
    This Assembly must use the UrlTransform feature as per the contract.
  • AUTH_EXPIRED
    The given auth expires parameter is in the past.
  • BAD_PRICING
    Something is wrong with the pricing record attached to your app, please contact support.
  • BILL_LIMIT_EXCEEDED
    The bill limit that was configured for this app is exceeded this month.
  • CANNOT_FETCH_ACTIVE_ASSEMBLIES
    Got an error fetching the number of active Assemblies.
  • CDN_REQUIRED
    We recommend URL Transform is only used in combination with a CDN to cache results. Otherwise each hit is transcoded which may ramp up bills fast for popular pages. That's why you should (have your CDN) set the query parameter or header key: 'cdn' with the value: 'required'.
  • COMPANION_BASIC_AUTH_UNSET
    Unable to validate Basic Auth credentials
  • COMPANION_CREDENTIALS_REQUEST_INVALID
    Companion credentials request contains invalid data
  • COMPANION_OSS_SUPPORT_PING_REQUEST_INVALID
    Companion OSS support ping request contains invalid data
  • FILE_DOWNLOAD_ERROR
    Transloadit was unable to download an external file.
  • FILE_META_DATA_ERROR
    There was a problem extracting meta data information from your file.
  • Could not get app, there was a database error.
  • Could not get app, this is an unknown Auth Key.
  • IMPORT_FILE_ERROR
    Transloadit was unable to import a file.
  • INCOMPLETE_PRICING
    Something is wrong with the pricing record attached to your app, please contact support.
  • INTERNAL_COMMAND_ERROR
    One of our commands reported an error.
  • INTERNAL_COMMAND_TIMEOUT
    One of our commands timed out.
  • INVALID_ASSEMBLY_STATUS
    This is an invalid Assembly status.
  • INVALID_AUTH_EXPIRES_PARAMETER
    Invalid auth expires parameter provided - we could not parse it.
  • INVALID_AUTH_KEY_PARAMETER
    Invalid Auth Key parameter provided - the value is not a string.
  • INVALID_AUTH_MAX_SIZE_PARAMETER
    Invalid auth referer parameter provided, could not parse it.
  • INVALID_AUTH_REFERER_PARAMETER
    Invalid auth referer parameter given, could not parse it.
  • INVALID_FILE_META_DATA
    We could not parse the meta data for the file #file#.
  • INVALID_FORM_DATA
    The form contained bad data, which cannot be parsed.
  • INVALID_INPUT_ERROR
    The files could not be processed, the provided file format is not supported by this Robot.
  • INVALID_PARAMS_FIELD
    Bad params field provided, it contains invalid json.
  • INVALID_SIGNATURE
    The given signature does not match ours.
  • INVALID_STEP_NAME
    You must not name a step ":original" that is not using the /upload/handle Robot. This will lead to bad job spawning like duped jobs or infinite Assemblies.
  • INVALID_TEMPLATE_FIELD
    Bad Template field provided, it contains invalid json.
  • INVALID_UPLOAD_HANDLE_STEP_NAME
    When using the /upload/handle robot, its step name must be ":original".
  • MAX_SIZE_EXCEEDED
    The uploaded file exceeded the file size limit.
  • NO_AUTH_EXPIRES_PARAMETER
    No auth expires parameter was provided.
  • NO_AUTH_KEY_PARAMETER
    No Auth Key parameter provided.
  • NO_AUTH_PARAMETER
    No auth parameter provided.
  • NO_COUNTRY
    Your app has no country record attached to it, please contact support or update your app information.
  • NO_OBJECT_AUTH_PARAMETER
    Bad auth parameter provided, it is not an object.
  • NO_OBJECT_PARAMS_FIELD
    Bad params field provided, it is not an object.
  • NO_PARAMS_FIELD
    No params field provided.
  • NO_PRICING
    Your app has no pricing record attached to it, please contact support.
  • NO_RESULT_STEP_FOUND
    Invalid or no result Step defined, which is mandatory for URL Transform Assemblies.
  • NO_RPC_RESULT_FROM_IMAGE_RESIZER
    No rpc result from image-resizer
  • NO_SIGNATURE_FIELD
    No signature field was provided.
  • NO_TEMPLATE_ID
    This app demands that a Template ID is provided. None was provided, though.
  • PLAN_LIMIT_EXCEEDED
    You have exceeded the usage limit of your Transloadit plan. Please upgrade your plan to make this error message go away, or get in touch with support.
  • POSSIBLY_MALICIOUS_FILE_FOUND
    One of your files is possibly malicious and cannot be processed.
  • PRIORITY_JOB_SLOTS_FOUND
    Your priority job slots were successfully found.
  • PRIORITY_JOB_SLOTS_NOT_FOUND
    Your priority job slots could not be found.
  • QUEUES_LIST_ERROR
    There was an error fetching the queue stats
  • RATE_LIMIT_REACHED
    Request limit reached
  • REFERER_MISMATCH
    This request comes from a location that is not allowed.
  • REQUEST_PREMATURE_CLOSED
    The original request was closed prematurely.
  • SERVER_401
    Authorization required
  • SERVER_403
    Forbidden
  • SERVER_404
    Unknown method / url
  • SERVER_500
    Unexpected error
  • SIGNATURE_REUSE_DETECTED
    The request was denied for security reasons. If you think this is in error, please get in touch with support.
  • TEMPLATE_CREATED
    Your Template was successfully created.
  • TEMPLATE_CREDENTIALS_CREATED
    Your Template Credentials were successfully created.
  • TEMPLATE_CREDENTIALS_DELETED
    Your Template Credentials were successfully deleted.
  • TEMPLATE_CREDENTIALS_FOUND
    Your Template Credentials were successfully found.
  • TEMPLATE_CREDENTIALS_INJECTION_ERROR
    Your Template Credentials could not be injected.
  • TEMPLATE_CREDENTIALS_NOT_CREATED
    Your Template Credentials could not be created.
  • TEMPLATE_CREDENTIALS_NOT_DELETED
    Your Template Credentials could not be deleted.
  • TEMPLATE_CREDENTIALS_NOT_FOUND
    Your Template Credentials could not be found.
  • TEMPLATE_CREDENTIALS_NOT_READ
    Your Template Credentials could not be read.
  • TEMPLATE_CREDENTIALS_NOT_UPDATED
    Your Template Credentials could not be updated.
  • TEMPLATE_CREDENTIALS_READ
    Your Template Credentials were successfully read.
  • TEMPLATE_CREDENTIALS_TYPES_FOUND
    The Template Credentials types were successfully found.
  • TEMPLATE_CREDENTIALS_TYPES_NOT_FOUND
    The Template Credentials types could not be found.
  • TEMPLATE_CREDENTIALS_UPDATED
    Your Template Credentials were successfully updated.
  • TEMPLATE_DB_ERROR
    The Template for this request could not be fetched due to a db error.
  • TEMPLATE_DELETED
    Your Template was successfully deleted.
  • TEMPLATE_DENIES_STEPS_OVERRIDE
    This Template had the allow_steps_override option set to true, so clients are not allowed to temper with its steps.
  • TEMPLATE_FOUND
    Your Template was successfully found.
  • TEMPLATE_INVALID_JSON
    Your Template contained invalid JSON.
  • TEMPLATE_LIST_ERROR
    Bad parameters
  • TEMPLATE_NOT_FOUND
    There was no Template found for the given template_id and app.
  • TEMPLATE_UPDATED
    Your Template was successfully updated.
  • TEMPLATE_VALIDATION_ERROR
    Your Template didn't pass validation.
  • TMP_FILE_DOWNLOAD_ERROR
    Transloadit was unable to download a file from our temporary location.
  • USER_COMMAND_ERROR
    An invalid file or setting caused a command to fail.
  • VERIFIED_EMAIL_REQUIRED
    You need to first verify your email address before you can do this.
  • WORKER_JOB_ERROR
    Transloadit was unable to process this Assembly.