rxhash is a redis module build on top of go-rm implement a lot of missing commands for Redis hash type.

This module provides following commands

• hgetset key field value
  • Return old value
• hgetdel key field
  • Return removed value
• hsetm key field old new
  • Set when value match old
• hsetex key field value
  • Set when field exists
• hdelm key field old new
  • Delete when value match old

Ensure you use latest redis build from source.

# Build module from source
go build -v -buildmode=c-shared github.com/redismodule/rxhash/cmd/rxhash
# Load module
redis-server --loadmodule ./rxhash --loglevel debug
# You can use these commands now.

After redis-server started you can run the test script

cd ~/go/src/github.com/redismodule/rxhash
./test.sh

If test failed will output something like

$ hset a a 2
(integer) 1
FAILED: Expected (integer)