Constructor
new DocumentUnderstandingServiceClient(optionsopt, gaxInstanceopt)
Construct an instance of DocumentUnderstandingServiceClient.
Parameters:
Name | Type | Attributes | Description | ||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
object |
<optional> |
The configuration object. The options accepted by the constructor are described in detail in this document. The common options are: Properties
|
||||||||||||||||||||||||||||||||||||||||||||||||
gaxInstance |
gax |
<optional> |
loaded instance of |
Members
apiEndpoint
The DNS address for this API service.
apiEndpoint
The DNS address for this API service - same as servicePath.
port
The port for this API service.
scopes
The scopes needed to make gRPC calls for every method defined in this service.
servicePath
The DNS address for this API service.
Methods
cancelOperation(request, optionsopt, callbackopt) → {Promise}
Starts asynchronous cancellation on a long-running operation. The server
makes a best effort to cancel the operation, but success is not
guaranteed. If the server doesn't support this method, it returns
google.rpc.Code.UNIMPLEMENTED
. Clients can use
Operations.GetOperation or
other methods to check whether the cancellation succeeded or whether the
operation completed despite cancellation. On successful cancellation,
the operation is not deleted; instead, it becomes an operation with
an Operation.error value with a google.rpc.Status.code of
1, corresponding to Code.CANCELLED
.
Parameters:
Name | Type | Attributes | Description | ||||||
---|---|---|---|---|---|---|---|---|---|
request |
Object |
The request object that will be sent. Properties
|
|||||||
options |
Object |
<optional> |
Optional parameters. You can override the default settings for this call, e.g, timeout, retries, paginations, etc. See gax.CallOptions for the details. |
||||||
callback |
function |
<optional> |
The function which will be called with the result of the API call. |
Returns:
Type | Description |
---|---|
Promise |
|
Example
```
const client = longrunning.operationsClient();
await client.cancelOperation({name: ''});
```
(async) checkBatchProcessDocumentsProgress(name) → {Promise}
Check the status of the long running operation returned by batchProcessDocuments()
.
Parameters:
Name | Type | Description |
---|---|---|
name |
String |
The operation name that will be passed. |
Returns:
Type | Description |
---|---|
Promise |
|
Example
/**
* This snippet has been automatically generated and should be regarded as a code template only.
* It will require modifications to work.
* It may require correct/in-range values for request initialization.
* TODO(developer): Uncomment these variables before running the sample.
*/
/**
* Required. Individual requests for each document.
*/
// const requests = [1,2,3,4]
/**
* Target project and location to make a call.
* Format: `projects/{project-id}/locations/{location-id}`.
* If no location is specified, a region will be chosen automatically.
*/
// const parent = 'abc123'
// Imports the Documentai library
const {DocumentUnderstandingServiceClient} = require('@google-cloud/documentai').v1beta2;
// Instantiates a client
const documentaiClient = new DocumentUnderstandingServiceClient();
async function callBatchProcessDocuments() {
// Construct request
const request = {
requests,
};
// Run request
const [operation] = await documentaiClient.batchProcessDocuments(request);
const [response] = await operation.promise();
console.log(response);
}
callBatchProcessDocuments();
close() → {Promise}
Terminate the gRPC channel and close the client.
The client will no longer be usable and all future behavior is undefined.
Returns:
Type | Description |
---|---|
Promise |
A promise that resolves when the client is closed. |
deleteOperation(request, optionsopt, callbackopt) → {Promise}
Deletes a long-running operation. This method indicates that the client is
no longer interested in the operation result. It does not cancel the
operation. If the server doesn't support this method, it returns
google.rpc.Code.UNIMPLEMENTED
.
Parameters:
Name | Type | Attributes | Description | ||||||
---|---|---|---|---|---|---|---|---|---|
request |
Object |
The request object that will be sent. Properties
|
|||||||
options |
Object |
<optional> |
Optional parameters. You can override the default settings for this call, e.g, timeout, retries, paginations, etc. See gax.CallOptions for the details. |
||||||
callback |
function |
<optional> |
The function which will be called with the result of the API call. |
Returns:
Type | Description |
---|---|
Promise |
|
Example
```
const client = longrunning.operationsClient();
await client.deleteOperation({name: ''});
```
getLocation(request, optionsopt) → {Promise}
Gets information about a location.
Parameters:
Name | Type | Attributes | Description | ||||||
---|---|---|---|---|---|---|---|---|---|
request |
Object |
The request object that will be sent. Properties
|
|||||||
options |
object |
<optional> |
Call options. See CallOptions for more details. |
Returns:
Type | Description |
---|---|
Promise |
|
getOperation(request, optionsopt, callbackopt) → {Promise}
Gets the latest state of a long-running operation. Clients can use this method to poll the operation result at intervals as recommended by the API service.
Parameters:
Name | Type | Attributes | Description | ||||||
---|---|---|---|---|---|---|---|---|---|
request |
Object |
The request object that will be sent. Properties
|
|||||||
options |
Object |
<optional> |
Optional parameters. You can override the default settings for this call, e.g, timeout, retries, paginations, etc. See gax.CallOptions for the details. |
||||||
callback |
function |
<optional> |
The function which will be called with the result of the API call. The second parameter to the callback is an object representing google.longrunning.Operation. |
Returns:
Type | Description |
---|---|
Promise |
|
Example
```
const client = longrunning.operationsClient();
const name = '';
const [response] = await client.getOperation({name});
// doThingsWith(response)
```
getProjectId() → {Promise}
Return the project ID used by this class.
Returns:
Type | Description |
---|---|
Promise |
A promise that resolves to string containing the project ID. |
initialize() → {Promise}
Initialize the client. Performs asynchronous operations (such as authentication) and prepares the client. This function will be called automatically when any class method is called for the first time, but if you need to initialize it before calling an actual method, feel free to call initialize() directly.
You can await on this method if you want to make sure the client is initialized.
Returns:
Type | Description |
---|---|
Promise |
A promise that resolves to an authenticated service stub. |
listLocationsAsync(request, optionsopt) → {Object}
Lists information about the supported locations for this service. Returns an iterable object.
for
-await
-of
syntax is used with the iterable to get response elements on-demand.
Parameters:
Name | Type | Attributes | Description | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
request |
Object |
The request object that will be sent. Properties
|
||||||||||||||||
options |
object |
<optional> |
Call options. See CallOptions for more details. |
Returns:
Type | Description |
---|---|
Object |
An iterable Object that allows async iteration. When you iterate the returned iterable, each element will be an object representing Location. The API will be called under the hood as needed, once per the page, so you can stop the iteration when you don't need more results. Please see the documentation for more details and examples. |
Example
```
const iterable = client.listLocationsAsync(request);
for await (const response of iterable) {
// process response
}
```
listOperationsAsync(request, optionsopt) → {Object}
Lists operations that match the specified filter in the request. If the
server doesn't support this method, it returns UNIMPLEMENTED
. Returns an iterable object.
For-await-of syntax is used with the iterable to recursively get response element on-demand.
Parameters:
Name | Type | Attributes | Description | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
request |
Object |
The request object that will be sent. Properties
|
|||||||||||||||||
options |
Object |
<optional> |
Optional parameters. You can override the default settings for this call, e.g, timeout, retries, paginations, etc. See gax.CallOptions for the details. |
Returns:
Type | Description |
---|---|
Object |
An iterable Object that conforms to iteration protocols. |