Redis Connection URL in GO
Match Redis connection URLs in both `redis://` and `rediss://` (TLS) forms, capturing user, password, host, port, and DB index.
Try it in the GO tester →Pattern
regexGO
rediss?:\/\/(?:([^:@\s]+)(?::([^@\s]*))?@)?([^:\/\s]+)(?::(\d+))?(?:\/(\d+))? (flags: g)Go (RE2) code
goGo
package main
import (
"fmt"
"regexp"
)
func main() {
re := regexp.MustCompile(`rediss?:\/\/(?:([^:@\s]+)(?::([^@\s]*))?@)?([^:\/\s]+)(?::(\d+))?(?:\/(\d+))?`)
input := `REDIS_URL=redis://default:pass@redis.upstash.io:6379/0`
for _, match := range re.FindAllString(input, -1) {
fmt.Println(match)
}
}Uses `regexp.MustCompile` (panics on bad patterns at startup) and `FindAllString` for all matches.
How the pattern works
rediss?:\/\/ matches either scheme. The optional auth group captures user and optional password. The host group captures the hostname. (?::(\d+))? optionally captures the port. (?:\/(\d+))? optionally captures the database index (Redis databases are numeric).
Examples
Input
REDIS_URL=redis://default:pass@redis.upstash.io:6379/0Matches
redis://default:pass@redis.upstash.io:6379/0
Input
rediss://cluster.example.com:6380Matches
rediss://cluster.example.com:6380
Input
no redis urlNo match
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