App Engine HTTP request.
The message defines the HTTP request that is sent to an App Engine app when
the task is dispatched.
Using AppEngineHttpRequest
requires
appengine.applications.get
Google IAM permission for the project
and the following scope:
https://www.googleapis.com/auth/cloud-platform
The task will be delivered to the App Engine app which belongs to the same
project as the queue. For more information, see
How Requests are
Routed
and how routing is affected by
dispatch
files.
Traffic is encrypted during transport and never leaves Google datacenters.
Because this traffic is carried over a communication mechanism internal to
Google, you cannot explicitly set the protocol (for example, HTTP or HTTPS).
The request to the handler, however, will appear to have used the HTTP
protocol.
The AppEngineRouting used to
construct the URL that the task is delivered to can be set at the queue-level
or task-level:
If set,
app_engine_routing_override
is used for all tasks in the queue, no matter what the setting
is for the
task-level
app_engine_routing.
The url that the task will be sent to is:
url =host+relative_uri
Tasks can be dispatched to secure app handlers, unsecure app handlers, and
URIs restricted with
login:
admin.
Because tasks are not run as any user, they cannot be dispatched to URIs
restricted with
login:
required
Task dispatches also do not follow redirects.
The task attempt has succeeded if the app's request handler returns an HTTP
response code in the range [200 - 299]. The task attempt has failed if
the app's handler returns a non-2xx response code or Cloud Tasks does
not receive response before the
deadline. Failed tasks
will be retried according to the retry
configuration. 503 (Service
Unavailable) is considered an App Engine system error instead of an
application error and will cause Cloud Tasks' traffic congestion control to
temporarily throttle the queue's dispatches. Unlike other types of task
targets, a 429 (Too Many Requests) response from an app handler does not
cause traffic congestion control to throttle the queue.
Protobuf type google.cloud.tasks.v2beta3.AppEngineHttpRequest
HTTP request headers.
This map contains the header field names and values.
Headers can be set when the
task is created.
Repeated headers are not supported but a header value can contain commas.
Cloud Tasks sets some headers to default values:
User-Agent: By default, this header is
"AppEngine-Google; (+http://code.google.com/appengine)".
This header can be modified, but Cloud Tasks will append
"AppEngine-Google; (+http://code.google.com/appengine)" to the
modified User-Agent.
If the task has a
body, Cloud Tasks
sets the following headers:
Content-Type: By default, the Content-Type header is set to
"application/octet-stream". The default can be overridden by explicitly
setting Content-Type to a particular media type when the
task is created.
For example, Content-Type can be set to "application/json".
Content-Length: This is computed by Cloud Tasks. This value is
output only. It cannot be changed.
The headers below cannot be set or overridden:
Host
X-Google-*
X-AppEngine-*
In addition, Cloud Tasks sets some headers when the task is dispatched,
such as headers containing information about the task; see
request
headers.
These headers are set only when the task is dispatched, so they are not
visible when the task is returned in a Cloud Tasks response.
Although there is no specific limit for the maximum number of headers or
the size, there is a limit on the maximum size of the
Task. For more information, see the
CreateTask
documentation.
Task-level setting for App Engine routing.
If set,
app_engine_routing_override
is used for all tasks in the queue, no matter what the setting is for the
task-level
app_engine_routing.
Task-level setting for App Engine routing.
If set,
app_engine_routing_override
is used for all tasks in the queue, no matter what the setting is for the
task-level
app_engine_routing.
HTTP request body.
A request body is allowed only if the HTTP method is POST or PUT. It is
an error to set a body on a task with an incompatible
HttpMethod.
HTTP request headers.
This map contains the header field names and values.
Headers can be set when the
task is created.
Repeated headers are not supported but a header value can contain commas.
Cloud Tasks sets some headers to default values:
User-Agent: By default, this header is
"AppEngine-Google; (+http://code.google.com/appengine)".
This header can be modified, but Cloud Tasks will append
"AppEngine-Google; (+http://code.google.com/appengine)" to the
modified User-Agent.
If the task has a
body, Cloud Tasks
sets the following headers:
Content-Type: By default, the Content-Type header is set to
"application/octet-stream". The default can be overridden by explicitly
setting Content-Type to a particular media type when the
task is created.
For example, Content-Type can be set to "application/json".
Content-Length: This is computed by Cloud Tasks. This value is
output only. It cannot be changed.
The headers below cannot be set or overridden:
Host
X-Google-*
X-AppEngine-*
In addition, Cloud Tasks sets some headers when the task is dispatched,
such as headers containing information about the task; see
request
headers.
These headers are set only when the task is dispatched, so they are not
visible when the task is returned in a Cloud Tasks response.
Although there is no specific limit for the maximum number of headers or
the size, there is a limit on the maximum size of the
Task. For more information, see the
CreateTask
documentation.
HTTP request headers.
This map contains the header field names and values.
Headers can be set when the
task is created.
Repeated headers are not supported but a header value can contain commas.
Cloud Tasks sets some headers to default values:
User-Agent: By default, this header is
"AppEngine-Google; (+http://code.google.com/appengine)".
This header can be modified, but Cloud Tasks will append
"AppEngine-Google; (+http://code.google.com/appengine)" to the
modified User-Agent.
If the task has a
body, Cloud Tasks
sets the following headers:
Content-Type: By default, the Content-Type header is set to
"application/octet-stream". The default can be overridden by explicitly
setting Content-Type to a particular media type when the
task is created.
For example, Content-Type can be set to "application/json".
Content-Length: This is computed by Cloud Tasks. This value is
output only. It cannot be changed.
The headers below cannot be set or overridden:
Host
X-Google-*
X-AppEngine-*
In addition, Cloud Tasks sets some headers when the task is dispatched,
such as headers containing information about the task; see
request
headers.
These headers are set only when the task is dispatched, so they are not
visible when the task is returned in a Cloud Tasks response.
Although there is no specific limit for the maximum number of headers or
the size, there is a limit on the maximum size of the
Task. For more information, see the
CreateTask
documentation.
HTTP request headers.
This map contains the header field names and values.
Headers can be set when the
task is created.
Repeated headers are not supported but a header value can contain commas.
Cloud Tasks sets some headers to default values:
User-Agent: By default, this header is
"AppEngine-Google; (+http://code.google.com/appengine)".
This header can be modified, but Cloud Tasks will append
"AppEngine-Google; (+http://code.google.com/appengine)" to the
modified User-Agent.
If the task has a
body, Cloud Tasks
sets the following headers:
Content-Type: By default, the Content-Type header is set to
"application/octet-stream". The default can be overridden by explicitly
setting Content-Type to a particular media type when the
task is created.
For example, Content-Type can be set to "application/json".
Content-Length: This is computed by Cloud Tasks. This value is
output only. It cannot be changed.
The headers below cannot be set or overridden:
Host
X-Google-*
X-AppEngine-*
In addition, Cloud Tasks sets some headers when the task is dispatched,
such as headers containing information about the task; see
request
headers.
These headers are set only when the task is dispatched, so they are not
visible when the task is returned in a Cloud Tasks response.
Although there is no specific limit for the maximum number of headers or
the size, there is a limit on the maximum size of the
Task. For more information, see the
CreateTask
documentation.
HTTP request headers.
This map contains the header field names and values.
Headers can be set when the
task is created.
Repeated headers are not supported but a header value can contain commas.
Cloud Tasks sets some headers to default values:
User-Agent: By default, this header is
"AppEngine-Google; (+http://code.google.com/appengine)".
This header can be modified, but Cloud Tasks will append
"AppEngine-Google; (+http://code.google.com/appengine)" to the
modified User-Agent.
If the task has a
body, Cloud Tasks
sets the following headers:
Content-Type: By default, the Content-Type header is set to
"application/octet-stream". The default can be overridden by explicitly
setting Content-Type to a particular media type when the
task is created.
For example, Content-Type can be set to "application/json".
Content-Length: This is computed by Cloud Tasks. This value is
output only. It cannot be changed.
The headers below cannot be set or overridden:
Host
X-Google-*
X-AppEngine-*
In addition, Cloud Tasks sets some headers when the task is dispatched,
such as headers containing information about the task; see
request
headers.
These headers are set only when the task is dispatched, so they are not
visible when the task is returned in a Cloud Tasks response.
Although there is no specific limit for the maximum number of headers or
the size, there is a limit on the maximum size of the
Task. For more information, see the
CreateTask
documentation.
The HTTP method to use for the request. The default is POST.
The app's request handler for the task's target URL must be able to handle
HTTP requests with this http_method, otherwise the task attempt fails with
error code 405 (Method Not Allowed). See Writing a push task request
handler
and the App Engine documentation for your runtime on How Requests are
Handled.
The HTTP method to use for the request. The default is POST.
The app's request handler for the task's target URL must be able to handle
HTTP requests with this http_method, otherwise the task attempt fails with
error code 405 (Method Not Allowed). See Writing a push task request
handler
and the App Engine documentation for your runtime on How Requests are
Handled.
The relative URI.
The relative URI must begin with "/" and must be a valid HTTP relative URI.
It can contain a path and query string arguments.
If the relative URI is empty, then the root path "/" will be used.
No spaces are allowed, and the maximum length allowed is 2083 characters.
The relative URI.
The relative URI must begin with "/" and must be a valid HTTP relative URI.
It can contain a path and query string arguments.
If the relative URI is empty, then the root path "/" will be used.
No spaces are allowed, and the maximum length allowed is 2083 characters.
Task-level setting for App Engine routing.
If set,
app_engine_routing_override
is used for all tasks in the queue, no matter what the setting is for the
task-level
app_engine_routing.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-01-28 UTC."],[],[]]
