nginx nginx returns json

1. Format

location ~ /query {
     default_type application/json;
     return 200 '{"res":{"code":"0","message":"","value":"$value"}}';
 }

2. default_type application/json; indicates the returned json format, otherwise the browser will open it as a file

3. If you need to return different values ​​based on request parameters, you can consider using map,

    map_hash_bucket_size 128;
    map $args $value{
        default 2;
        include /usr/local/nginx-1.8.1/map/query.map;
    }

#query.map
arg=querytest   1;
arg=query       0;

The above introduces nginx nginx returns json, including nginx content. I hope it will be helpful to friends who are interested in PHP tutorials.