nginx如何记录请求payload

nginx可以使用第三方模块ngx_http_request_body_module来记录请求payload，具体步骤如下：

1. 配置编译参数，启用ngx_http_request_body_module模块：

./configure --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_auth_request_module --with-http_image_filter_module --with-http_geoip_module --with-threads --with-stream --with-stream_ssl_module --with-http_slice_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6 --with-cc-opt='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,--as-needed -pie' --add-module=/path/to/ngx_http_request_body_module

2. 配置nginx.conf文件，设置ngx_http_request_body_module模块：

http { ... server { ... location / { client_body_buffer_size 128k; client_max_body_size 10m; client_body_in_file_only on; client_body_temp_path /var/tmp/; client_body_timeout 60s; client_header_timeout 60s; ... } } }

3. 在ngx_http_request_body_module模块中处理请求payload，例如：

http { ... server { ... location / { client_body_buffer_size 128k; client_max_body_size 10m; client_body_in_file_only on; client_body_temp_path /var/tmp/; client_body_timeout 60s; client_header_timeout 60s; if ($request_method = POST) { set $request_payload_file "/var/tmp/$request_uri.$request_time.payload"; client_body_in_file_only clean; client_body_temp_path $request_payload_file; client_body_timeout 60s; client_header_timeout 60s; proxy_pass http://127.0.0.1:8080; access_log /var/log/nginx/access.log main; } ... } } }

在这个例子中，如果请求方法为POST，则将请求payload存储到临时文件中，文件名为“$request_uri.$request_time.payload”，然后将请求转发到代理服务器。在访问日志中记录所有请求，包括请求payload