Redis2#
The To work with the module, it must be loaded in the Warning Important! Unlike the Examples of working with the module. Here The value Executing arbitrary Redis commands: Detailed documentation and source code are available at:
openresty/redis2-nginx-module.redis2
module provides the ability to interact with a Redis
2.x server. It implements the full unified Redis 2.0 protocol, including support
for Redis pipelining.Loading the Module#
main{}
context.
The example below also uses directives from the set-misc module:load_module modules/ndk_http_module.so;
load_module modules/ngx_http_set_misc_module.so;
load_module modules/ngx_http_redis2_module.so;
Configuration Example#
upstream redis_upstream {
server 127.0.0.1:6379;
}
server {
listen 80;
server_name localhost;
# Set key value
location /foo {
set $value 'first';
redis2_query set one $value;
redis2_pass redis_upstream;
}
# Get value by key
location /bar {
redis2_query get one;
redis2_pass redis_upstream;
}
# Set key value from query parameters
location /set {
set_unescape_uri $key $arg_key;
set_unescape_uri $val $arg_val;
redis2_query set $key $val;
redis2_pass 127.0.0.1:6379;
}
# Get value by key from query parameters
location /get {
set_unescape_uri $key $arg_key;
redis2_query get $key;
redis2_pass 127.0.0.1:6379;
}
# Execute multiple pipelined commands
location /pipeline {
set $value 'first';
redis2_query set one $value;
redis2_query get one;
redis2_query set one 'first first';
redis2_query get one;
redis2_pass 127.0.0.1:6379;
}
# Execute arbitrary command passed in query parameter
location /cmd {
set_unescape_uri $cmd $arg_command;
redis2_raw_query "$cmd\r\n";
redis2_pass 127.0.0.1:6379;
}
}
proxy_pass
directive in Angie, using variables in the parameter of the redis2_pass
directive is not allowed.Request Execution Demonstration#
$ curl localhost/foo
+OK
$ curl localhost/bar
$5
first
$5
is the length of the value (5 bytes), and first
is the value itself.$ curl 'localhost/set/?key=two&val=second%20value'
+OK
$ curl 'localhost/get/?key=two'
$12
second value
$ curl 'localhost/get/?key=three'
$-1
$-1
indicates that the key three
does not exist.$ curl localhost/pipeline
+OK
$5
first
+OK
$11
first first
$ curl 'localhost/cmd/?command=set%20three%20"third%20value"'
+OK
$ curl 'localhost/cmd/?command=get%20three'
$11
third value
Additional Information#