---
title: "POST /v1/{+name}:export"
method: POST
path: "/v1/{+name}:export"
tags: ["projects"]
---

# POST /v1/{+name}:export

`POST /v1/{+name}:export`

Exports the messages to a destination. To filter messages to be exported, define a filter using the start and end time, relative to the message generation time (MSH.7). This API returns an Operation that can be used to track the status of the job by calling GetOperation. Immediate fatal errors appear in the error field. Otherwise, when the operation finishes, a detailed response of type ExportMessagesResponse is returned in the response field. The metadata field type for this operation is OperationMetadata.

## Path parameters

- `name` string, required

## Request body

- ExportMessagesRequest — Request to schedule an export.
  - `endTime` string, google-datetime — The end of the range in `send_time` (MSH.7, https://www.hl7.org/documentcenter/public_temp_2E58C1F9-1C23-BA17-0C6126475344DA9D/wg/conf/HL7MSH.htm) to process. If not specified, the time when the export is scheduled is used. This value has to come after the `start_time` defined below. Only messages whose `send_time` lies in the range `start_time` (inclusive) to `end_time` (exclusive) are exported.
  - `startTime` string, google-datetime — The start of the range in `send_time` (MSH.7, https://www.hl7.org/documentcenter/public_temp_2E58C1F9-1C23-BA17-0C6126475344DA9D/wg/conf/HL7MSH.htm) to process. If not specified, the UNIX epoch (1970-01-01T00:00:00Z) is used. This value has to come before the `end_time` defined below. Only messages whose `send_time` lies in the range `start_time` (inclusive) to `end_time` (exclusive) are exported.
  - `filter` string — Restricts messages exported to those matching a filter, only applicable to PubsubDestination and GcsDestination. The following syntax is available: * A string field value can be written as text inside quotation marks, for example `"query text"`. The only valid relational operation for text fields is equality (`=`), where text is searched within the field, rather than having the field be equal to the text. For example, `"Comment = great"` returns messages with `great` in the comment field. * A number field value can be written as an integer, a decimal, or an exponential. The valid relational operators for number fields are the equality operator (`=`), along with the less than/greater than operators (`<`, `<=`, `>`, `>=`). Note that there is no inequality (`!=`) operator. You can prepend the `NOT` operator to an expression to negate it. * A date field value must be written in the `yyyy-mm-dd` format. Fields with date and time use the RFC3339 time format. Leading zeros are required for one-digit months and days. The valid relational operators for date fields are the equality operator (`=`) , along with the less than/greater than operators (`<`, `<=`, `>`, `>=`). Note that there is no inequality (`!=`) operator. You can prepend the `NOT` operator to an expression to negate it. * Multiple field query expressions can be combined in one query by adding `AND` or `OR` operators between the expressions. If a boolean operator appears within a quoted string, it is not treated as special, and is just another part of the character string to be matched. You can prepend the `NOT` operator to an expression to negate it. The following fields and functions are available for filtering: * `message_type`, from the MSH-9.1 field. For example, `NOT message_type = "ADT"`. * `send_date` or `sendDate`, the `yyyy-mm-dd` date the message was sent in the dataset's time_zone, from the MSH-7 segment. For example, `send_date < "2017-01-02"`. * `send_time`, the timestamp when the message was sent, using the RFC3339 time format for comparisons, from the MSH-7 segment. For example, `send_time < "2017-01-02T00:00:00-05:00"`. * `create_time`, the timestamp when the message was created in the HL7v2 store. Use the RFC3339 time format for comparisons. For example, `create_time < "2017-01-02T00:00:00-05:00"`. * `send_facility`, the care center that the message came from, from the MSH-4 segment. For example, `send_facility = "ABC"`. Note: The filter will be applied to every message in the HL7v2 store whose `send_time` lies in the range defined by the `start_time` and the `end_time`. Even if the filter only matches a small set of messages, the export operation can still take a long time to finish when a lot of messages are between the specified `start_time` and `end_time` range.
  - `pubsubDestination` PubsubDestination — The Pub/Sub output destination. The Cloud Healthcare Service Agent requires the `roles/pubsub.publisher` Cloud IAM role on the Pub/Sub topic.
    - `pubsubTopic` string — The [Pub/Sub](https://cloud.google.com/pubsub/docs/) topic that Pub/Sub messages are published on. Supplied by the client. The `PubsubMessage` contains the following fields: * `PubsubMessage.Data` contains the resource name. * `PubsubMessage.MessageId` is the ID of this notification. It is guaranteed to be unique within the topic. * `PubsubMessage.PublishTime` is the time when the message was published. [Topic names](https://cloud.google.com/pubsub/docs/overview#names) must be scoped to a project. The Cloud Healthcare API service account, service-PROJECT_NUMBER@gcp-sa-healthcare.iam.gserviceaccount.com, must have publisher permissions on the given Pub/Sub topic. Not having adequate permissions causes the calls that send notifications to fail.
  - `gcsDestination` GcsDestination — The Cloud Storage output destination. The Cloud Healthcare Service Agent requires the `roles/storage.objectAdmin` Cloud IAM roles on the Cloud Storage location.
    - `uriPrefix` string — URI of an existing Cloud Storage directory where the server writes result files, in the format `gs://{bucket-id}/{path/to/destination/dir}`. If there is no trailing slash, the service appends one when composing the object path.
    - `messageView` 'MESSAGE_VIEW_UNSPECIFIED' | 'RAW_ONLY' | 'PARSED_ONLY' | 'FULL' | 'SCHEMATIZED_ONLY' | 'BASIC' — Specifies the parts of the Message resource to include in the export. If not specified, FULL is used.
    - `contentStructure` 'CONTENT_STRUCTURE_UNSPECIFIED' | 'MESSAGE_JSON' — The format of the exported HL7v2 message files.

## Response `200`

Successful response

---

[API](https://skmtc.net/google/apis/healthcare.md) · [All operations](https://skmtc.net/google/apis/healthcare/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/google/healthcare/versions/cdec6fe2315f/schema)
