spacewander commented on a change in pull request #5292:
URL: https://github.com/apache/apisix/pull/5292#discussion_r734306808



##########
File path: docs/en/latest/plugins/proxy-rewrite.md
##########
@@ -39,6 +39,7 @@ The `proxy-rewrite` is an upstream proxy information 
rewriting plugin, which sup
 | --------- | ------------- | ----------- | ------- | ----------------- | 
------------------------------------------------------------ |
 | scheme    | string        | optional    | "http"  | ["http", "https"] | 
Upstream new `schema` forwarding protocol. This option is deprecated. It's 
recommended to set the proxy `scheme` in the Upstream object's `scheme` field 
instead.|
 | uri       | string        | optional    |         |                   | 
Upstream new `uri` forwarding address. Supports the use of [Nginx 
variables](https://nginx.org/en/docs/http/ngx_http_core_module.html). Variables 
must start with `$`, such as `$arg_name`. |
+| method    | enum          | optional    |         | ["GET", "POST", "PUT", 
"HEAD", "DELETE", "OPTIONS","MKCOL", "COPY", "MOVE", "PROPFIND", 
"PROPFIND","LOCK", "UNLOCK", "PATCH", "TRACE"] | rewrite the HTTP method.|

Review comment:
       The type should be string

##########
File path: t/plugin/proxy-rewrite3.t
##########
@@ -0,0 +1,149 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+use t::APISIX 'no_plan';
+
+repeat_each(1);
+no_long_string();
+no_root_location();
+no_shuffle();
+log_level("info");
+
+add_block_preprocessor(sub {
+    my ($block) = @_;
+
+    if (!$block->request) {
+        $block->set_value("request", "GET /t");
+    }
+
+    if (!$block->no_error_log && !$block->error_log) {
+        $block->set_value("no_error_log", "[error]\n[alert]");
+    }
+});
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: set route(rewrite method)
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local code, body = t('/apisix/admin/routes/1',
+                 ngx.HTTP_PUT,
+                 [[{
+                        "methods": ["GET"],
+                        "plugins": {
+                            "proxy-rewrite": {
+                                "uri": "/plugin_proxy_rewrite",
+                                "method": "POST",
+                                "scheme": "http",
+                                "host": "apisix.iresty.com"
+                            }
+                        },
+                        "upstream": {
+                            "nodes": {
+                                "127.0.0.1:1980": 1
+                            },
+                            "type": "roundrobin"
+                        },
+                        "uri": "/hello"
+                }]]
+                )
+
+            if code >= 300 then
+                ngx.status = code
+            end
+            ngx.say(body)
+        }
+    }
+--- request
+GET /t

Review comment:
       There is no need to set `GET /t` & `no_error_log`. They are set in the 
header of the file.

##########
File path: t/plugin/proxy-rewrite3.t
##########
@@ -0,0 +1,149 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+use t::APISIX 'no_plan';
+
+repeat_each(1);
+no_long_string();
+no_root_location();
+no_shuffle();
+log_level("info");
+
+add_block_preprocessor(sub {
+    my ($block) = @_;
+
+    if (!$block->request) {
+        $block->set_value("request", "GET /t");
+    }
+
+    if (!$block->no_error_log && !$block->error_log) {
+        $block->set_value("no_error_log", "[error]\n[alert]");
+    }
+});
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: set route(rewrite method)
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local code, body = t('/apisix/admin/routes/1',
+                 ngx.HTTP_PUT,
+                 [[{
+                        "methods": ["GET"],
+                        "plugins": {
+                            "proxy-rewrite": {
+                                "uri": "/plugin_proxy_rewrite",
+                                "method": "POST",
+                                "scheme": "http",
+                                "host": "apisix.iresty.com"
+                            }
+                        },
+                        "upstream": {
+                            "nodes": {
+                                "127.0.0.1:1980": 1
+                            },
+                            "type": "roundrobin"
+                        },
+                        "uri": "/hello"
+                }]]
+                )
+
+            if code >= 300 then
+                ngx.status = code
+            end
+            ngx.say(body)
+        }
+    }
+--- request
+GET /t
+--- response_body
+passed
+--- no_error_log
+[error]
+
+
+
+=== TEST 2: set route(update rewrite method)

Review comment:
       Need to check the upstream receives rewritten method




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