基于if-else条件的NGINX proxy_pass
问题陈述 我想根据请求头中的某个值代理传递到另一个url。所有请求详细信息,包括查询参数(如果有)、头和所有内容都应传递到代理地址 我尝试过的 我已经遵循并根据上述要求尝试了以下方法 Test.lua文件 nginx.conf 如您所见,我正在基于if-else条件的NGINX proxy_pass,nginx,lua,Nginx,Lua,问题陈述 我想根据请求头中的某个值代理传递到另一个url。所有请求详细信息,包括查询参数(如果有)、头和所有内容都应传递到代理地址 我尝试过的 我已经遵循并根据上述要求尝试了以下方法 Test.lua文件 nginx.conf 如您所见,我正在proxy\u pass语句中手动传递查询参数 如何通过在代理传递过程中不传递实际的请求来解决此问题?您的问题可以通过根据标头重写原始请求来轻松解决。 下面是一个例子: #sample backend set $backend_host "http://h
proxy\u pass
语句中手动传递查询参数
如何通过在代理传递过程中不传递实际的
请求来解决此问题?您的问题可以通过根据标头重写原始请求来轻松解决。
下面是一个例子:
#sample backend
set $backend_host "http://httpbin.org";
location ~*/api/employees {
rewrite_by_lua '
--reading request headers
local req_headers = ngx.req.get_headers()
local target_uri = ""
-- checking an a header value to determine target uri
if req_headers["x-special-header"] then
target_uri = req_headers["x-special-header"]
else
-- default path if not header found
target_uri = "/get"
end
ngx.log(ngx.NOTICE, string.format("resolved target_uri: %s", target_uri))
--rewriting uri according to header (all original req args and headers are preserved)
ngx.req.set_uri(target_uri)
';
proxy_pass $backend_host;
}
发送“特殊”标头作为目标后端路径的请求示例:
curl 'http://localhost/api/employees?arg1=val1&arg2=val2' -H 'x-special-header: /headers'
答复:
{
"headers": {
"Accept": "*/*",
"Connect-Time": "0",
"Connection": "close",
"Host": "httpbin.org",
"Total-Route-Time": "0",
"User-Agent": "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.14.0.0 zlib/1.2.3 libidn/1.18 libssh2/1.4.2",
"Via": "1.1 vegur",
"X-Request-Id": "6e515e0a-0061-4576-b1aa-5da3e3308c81",
"X-Special-Header": "/headers"
}
{
"args": {
"arg1": "val1",
"arg2": "val2"
},
"headers": {
"Accept": "*/*",
"Connect-Time": "4",
"Connection": "close",
"Host": "httpbin.org",
"Total-Route-Time": "0",
"User-Agent": "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.14.0.0 zlib/1.2.3 libidn/1.18 libssh2/1.4.2",
"Via": "1.1 vegur",
"X-Request-Id": "520c0e12-1361-4c78-8bdf-1bff3f9d924c"
},
"url": "http://httpbin.org/get?arg1=val1&arg2=val2"
}
不带“特殊”标题的样本请求:
curl 'http://localhost/api/employees?arg1=val1&arg2=val2'
答复:
{
"headers": {
"Accept": "*/*",
"Connect-Time": "0",
"Connection": "close",
"Host": "httpbin.org",
"Total-Route-Time": "0",
"User-Agent": "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.14.0.0 zlib/1.2.3 libidn/1.18 libssh2/1.4.2",
"Via": "1.1 vegur",
"X-Request-Id": "6e515e0a-0061-4576-b1aa-5da3e3308c81",
"X-Special-Header": "/headers"
}
{
"args": {
"arg1": "val1",
"arg2": "val2"
},
"headers": {
"Accept": "*/*",
"Connect-Time": "4",
"Connection": "close",
"Host": "httpbin.org",
"Total-Route-Time": "0",
"User-Agent": "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.14.0.0 zlib/1.2.3 libidn/1.18 libssh2/1.4.2",
"Via": "1.1 vegur",
"X-Request-Id": "520c0e12-1361-4c78-8bdf-1bff3f9d924c"
},
"url": "http://httpbin.org/get?arg1=val1&arg2=val2"
}