Configring Nginx for rest api - php

Question

I have implemented Rest Api(Post) in apache server but when i moved it to nginx it not working. Here is configigration file i used in root directory called .htaccess.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-s
RewriteRule ^(.*)$ api.php?rquest=$1 [QSA,NC,L]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.*)$ api.php [QSA,NC,L]
RewriteCond %{REQUEST_FILENAME} -s
RewriteRule ^(.*)$ api.php [QSA,NC,L]
</IfModule>
All it does is if a request comes to ipaddess of my server like example.com/promocode_api/validate it sends request to api.php to process it.
But cant able to get configration needed in nginx to make it to work.
Here is my nginx code from etc/nginx/sites-enabled/defalut.
server {
listen 80;
root /purple_dev;
index index.php index.html index.htm;
server_name example.com;
# location / {
# try_files $uri $uri/ /index.html;
# }
location /promocode_api {
}
error_page 404 /404.html;
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /purple_dev;
}
# pass the PHP scripts to FastCGI server listening on the php-fpm socket
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}

Answer 1

You'll probably need somthing along the lines of:
location /promocode_api {
index api.php;
include mime.types;
try_files $uri $uri/ api.php$is_args$args;
}
I fail to get the point why you have 3 different rules for the same target file though. I would deal with these in php.

Answer 2

Finally i solved it.
This was neede to be added
location /promocode_api {
rewrite ^/promocode_api/(.*)$ /promocode_api/api.php?rquest=$1;
}