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Version: 3.8

batch-requests

Description#

After enabling the batch-requests plugin, users can assemble multiple requests into one request and send them to the gateway. The gateway will parse the corresponding requests from the request body and then individually encapsulate them into separate requests. Instead of the user initiating multiple HTTP requests to the gateway, the gateway will use the HTTP pipeline method, go through several stages such as route matching, forwarding to the corresponding upstream, and then return the combined results to the client after merging.

In cases where the client needs to access multiple APIs, this will significantly improve performance.

note

The request headers in the user’s original request (except for headers starting with “Content-”, such as “Content-Type”) will be assigned to each request in the HTTP pipeline. Therefore, to the gateway, these HTTP pipeline requests sent to itself are no different from external requests initiated directly by users. They can only access pre-configured routes and will undergo a complete authentication process, so there are no security issues.

If the request headers of the original request conflict with those configured in the plugin, the request headers configured in the plugin will take precedence (except for the real_ip_header specified in the configuration file).

Attributes#

None.

API#

This plugin adds /apisix/batch-requests as an endpoint.

note

You may need to use the public-api plugin to expose this endpoint.

Enable Plugin#

You can enable the batch-requests Plugin by adding it to your configuration file (conf/config.yaml):

conf/config.yaml
plugins:
- ...
- batch-requests

Configuration#

By default, the maximum body size that can be sent to /apisix/batch-requests can't be larger than 1 MiB. You can change this configuration of the Plugin through the endpoint apisix/admin/plugin_metadata/batch-requests:

curl http://127.0.0.1:9180/apisix/admin/plugin_metadata/batch-requests -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"max_body_size": 4194304
}'

Metadata#

NameTypeRequiredDefaultValid valuesDescription
max_body_sizeintegerTrue1048576[1, ...]Maximum size of the request body in bytes.

Request and response format#

This plugin will create an API endpoint in APISIX to handle batch requests.

Request#

NameTypeRequiredDefaultDescription
queryobjectFalseQuery string for the request.
headersobjectFalseHeaders for all the requests.
timeoutintegerFalse30000Timeout in ms.
pipelinearray[HttpRequest]TrueDetails of the request.

HttpRequest#

NameTypeRequiredDefaultValidDescription
versionstringFalse1.1[1.0, 1.1]HTTP version.
methodstringFalseGET["GET", "POST", "PUT", "DELETE", "PATCH", "HEAD", "OPTIONS", "CONNECT", "TRACE"]HTTP method.
queryobjectFalseQuery string for the request. If set, overrides the value of the global query string.
headersobjectFalseHeaders for the request. If set, overrides the value of the global query string.
pathstringTruePath of the HTTP request.
bodystringFalseBody of the HTTP request.
ssl_verifybooleanFalsefalseSet to verify if the SSL certs matches the hostname.

Response#

The response is an array of HttpResponses.

HttpResponse#

NameTypeDescription
statusintegerHTTP status code.
reasonstringHTTP reason-phrase.
bodystringHTTP response body.
headersobjectHTTP response headers.

Specifying a custom URI#

You can specify a custom URI with the public-api Plugin.

You can set the URI you want when creating the Route and change the configuration of the public-api Plugin:

curl http://127.0.0.1:9180/apisix/admin/routes/br -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"uri": "/batch-requests",
"plugins": {
"public-api": {
"uri": "/apisix/batch-requests"
}
}
}'

Example usage#

First, you need to setup a Route to the batch request API. We will use the public-api Plugin for this:

curl http://127.0.0.1:9180/apisix/admin/routes/br -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"uri": "/apisix/batch-requests",
"plugins": {
"public-api": {}
}
}'

Now you can make a request to the batch request API (/apisix/batch-requests):

curl --location --request POST 'http://127.0.0.1:9080/apisix/batch-requests' \
--header 'Content-Type: application/json' \
--data '{
"headers": {
"Content-Type": "application/json",
"admin-jwt":"xxxx"
},
"timeout": 500,
"pipeline": [
{
"method": "POST",
"path": "/community.GiftSrv/GetGifts",
"body": "test"
},
{
"method": "POST",
"path": "/community.GiftSrv/GetGifts",
"body": "test2"
}
]
}'

This will give a response:

[
{
"status": 200,
"reason": "OK",
"body": "{\"ret\":500,\"msg\":\"error\",\"game_info\":null,\"gift\":[],\"to_gets\":0,\"get_all_msg\":\"\"}",
"headers": {
"Connection": "keep-alive",
"Date": "Sat, 11 Apr 2020 17:53:20 GMT",
"Content-Type": "application/json",
"Content-Length": "81",
"Server": "APISIX web server"
}
},
{
"status": 200,
"reason": "OK",
"body": "{\"ret\":500,\"msg\":\"error\",\"game_info\":null,\"gift\":[],\"to_gets\":0,\"get_all_msg\":\"\"}",
"headers": {
"Connection": "keep-alive",
"Date": "Sat, 11 Apr 2020 17:53:20 GMT",
"Content-Type": "application/json",
"Content-Length": "81",
"Server": "APISIX web server"
}
}
]

Delete Plugin#

You can remove batch-requests from your list of Plugins in your configuration file (conf/config.yaml).