apisix/doc/plugins/response-rewrite.md

• 中文

Summary

• Name
• Attributes
• How To Enable
• Test Plugin
• Disable Plugin

Name

response rewrite plugin, rewrite the content from upstream.

senario:

1. can set Access-Control-Allow-* series field to support CORS(Cross-origin Resource Sharing).
2. we can set customized status_code and Location field in header to achieve redirect, you can alse use redirect plugin if you just want a redirection.

Attributes

Name	Requirement	Description
status_code	optional	New status code to client, keep the original response code by default.
body	optional	New body to client, and the content-length will be reset too.
body_base64	optional	This is a boolean value，identify if body in configuration need base64 decoded before rewrite to client.
headers	optional	Set the new headers for client, can set up multiple. If it exists already from upstream, will rewrite the header, otherwise will add the header. You can set the corresponding value to an empty string to remove a header.

How To Enable

Here's an example, enable the response rewrite plugin on the specified route:

curl http://127.0.0.1:9080/apisix/admin/routes/1  -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "methods": ["GET"],
    "uri": "/test/index.html",
    "plugins": {
        "response-rewrite": {
            "body": "{\"code\":\"ok\",\"message\":\"new json body\"}",
            "headers": {
                "X-Server-id": 3,
                "X-Server-status": "on"
            }
        }
    },
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:80": 1
        }
    }
}'

Test Plugin

Testing based on the above examples :

curl -X GET -i  http://127.0.0.1:9080/test/index.html

It will output like below,no matter what kind of content from upstream.

HTTP/1.1 200 OK
Date: Sat, 16 Nov 2019 09:15:12 GMT
Transfer-Encoding: chunked
Connection: keep-alive
X-Server-id: 3
X-Server-status: on

{"code":"ok","message":"new json body"}

This means that the response rewrite plugin is in effect.

Disable Plugin

When you want to disable the response rewrite plugin, it is very simple, you can delete the corresponding json configuration in the plugin configuration, no need to restart the service, it will take effect immediately:

curl http://127.0.0.1:9080/apisix/admin/routes/1  -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "methods": ["GET"],
    "uri": "/test/index.html",
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:80": 1
        }
    }
}'

The response rewrite plugin has been disabled now. It works for other plugins.