Rewrite response body

[Jake Pearson]

Hi,

I am new to openresty and am trying to replace the body the comes from an earlier call to proxy_pass with code like this:

body_filter_by_lua_block {

ngx.arg[1] = '{"count"' .. ":2}'

ngx.arg[2] = true

}

I had originally, not had the line for `ngx.arg[2] = true`, but I would get back the body twice (does that mean the body I'm replacing has 2 chunks?). I added in the `ngx.arg[2] = true` line and now the output from the request looks good. When I deploy the `nginx` file, the service looks good for a few requests then the `nginx` requests start to hang. Is the correct/best practice for replacing the response body? What should I do instead?

Thanks,

Jake

[FQ Liu]

May be you should remove the Content-Length in response headers

在 2018年4月10日星期二 UTC+8上午1:36:13，Jake Pearson写道：

[tokers]

Hello!

The document already marked:

When the Lua code may change the length of the response body, then it is required to always clear out the Content-Length response header (if any) in a header filter to enforce streaming output

 

[Jake Pearson]

That took care of the problem. Thanks!