How to save non-Ascii characters in redis HMSET?

Question

I'd like to save Arabic characters like سلام in a redis hash, like this:

HMSET arabicHash "سلام" 5
OK

But the result is not as intended:

127.0.0.1:6379> HGETALL arabicHash
1) "\xd8\xb3\xd9\x84\xd8\xa7\xd9\x85"
2) "5"

I'm wondering if there is a way to save سلام directly inot redis set? And if not, how can I convert back "\xd8\xb3\xd9\x84\xd8\xa7\xd9\x85" to human-readable charachters after being retrived?

Update: I've tested on my Ubuntu Bash terminal, but the result is not formatted correctly here. The screenshot:

DhruvPathak · Accepted Answer · 2018-07-04 10:17:05Z

2

You need to put quotes to enclose the key and value being stored in the hash.

Tested on try.redis.io ( it shows the redis output in utf-8 decode form )

The text may showup as utf-8 encoded in redis response, but on decoding, it would show correctly in arabic characters

answered Jul 4, 2018 at 10:17

DhruvPathak

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2 Comments

Karlom Over a year ago

Well, I'm tesing on Bash terminal. And I enclosed the arabic word in double quotes (like "سلام" . Please see the photo in my updated question.

DhruvPathak Over a year ago

Yes, your storage in redis is correct. See the decoded version : mothereff.in/utf-8#%D8%B3%D9%84%D8%A7%D9%85

mirekphd · Accepted Answer · 2024-07-07 18:27:53Z

0

Note that redis-cli by default displays byte-encoded characters (which are not human-readable), but there is a --raw switch for displaying them in a format decoded to strings, i.e. in human-readable form (as Redis developer himself answered here):

$ redis-cli --raw -a $REDIS_PASSWORD

127.0.0.1:6379> HMSET test.hash 123 gęś 
OK

127.0.0.1:6379> HGETALL test.hash
123
gęś

... versus the default:

$ redis-cli -a $REDIS_PASSWORD

127.0.0.1:6379> HMSET test.hash 321 gęś 
OK

127.0.0.1:6379> hgetall test.hash
1) "123"
2) "g\xc4\x99\xc5\x9b"
3) "321"
4) "g\xc4\x99\xc5\x9b"

Notice also that the data format of non-ASCII characters actually stored in the databases is unaffected by this switch.

answered Jul 7, 2024 at 18:27

mirekphd

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