Pulls messages from the server. The server may return UNAVAILABLE if
there are too many concurrent pull requests pending for the given
subscription.
Arguments
| Parameters | |
|---|---|
| subscription | 
 Required. The subscription from which messages should be pulled. Format is  
 | 
| body | 
 Required. 
 | 
Raised exceptions
| Exceptions | |
|---|---|
| ConnectionError | In case of a network problem (such as DNS failure or refused connection). | 
| HttpError | If the response status is >= 400 (excluding 429 and 503). | 
| TimeoutError | If a long-running operation takes longer to finish than the specified timeout limit. | 
| TypeError | If an operation or function receives an argument of the wrong type. | 
| ValueError | If an operation or function receives an argument of the right type but an inappropriate value. For example, a negative timeout. | 
Response
If successful, the response contains an instance of PullResponse.
Subworkflow snippet
Some fields might be optional or required. To identify required fields, refer to the API documentation.
YAML
- pull: call: googleapis.pubsub.v1.projects.subscriptions.pull args: subscription: ... body: maxMessages: ... returnImmediately: ... result: pullResult
JSON
[ { "pull": { "call": "googleapis.pubsub.v1.projects.subscriptions.pull", "args": { "subscription": "...", "body": { "maxMessages": "...", "returnImmediately": "..." } }, "result": "pullResult" } } ]