# Auto-generated id safe to expose in url param **URL:** \ **Category:** Elasticsearch\ **Created:** [February 20, 2013, 11:41am UTC](https://discuss.elastic.co/t/auto-generated-id-safe-to-expose-in-url-param/10816 "2013-02-20T11:41:59Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Le\_Son\_Phung](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/le_son_phung/32/2169_2.png) [@Le\_Son\_Phung](https://discuss.elastic.co/u/Le_Son_Phung)\ **Post date:** [February 20, 2013, 11:41am UTC](https://discuss.elastic.co/t/auto-generated-id-safe-to-expose-in-url-param/10816/1 "2013-02-20T11:41:59Z")
Hi guys, Just want to ask how the index id is automatically generated and it is safe to use in url param like this? /customers/?customer\_id=sh\_8aCaiQB-v4ZEqJfBzlg Regards, Son. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [February 20, 2013, 11:44am UTC](https://discuss.elastic.co/t/auto-generated-id-safe-to-expose-in-url-param/10816/2 "2013-02-20T11:44:01Z")
You mean _document ID_? If so, yes it's auto generated if you don't provide it. It's a unique id. Your URL doesn't seem to be an Elasticsearch URL, does it? -- David Pilato | Technical Advocate | [Elasticsearch.com](http://Elasticsearch.com) @dadoonet | @elasticsearchfr | @scrutmydocs Le 20 févr. 2013 à 12:41, Le Son Phung [son@wego.com](mailto:son@wego.com) a écrit : > Hi guys, > > Just want to ask how the index id is automatically generated and it is safe to use in url param like this? > > /customers/?customer\_id=sh\_8aCaiQB-v4ZEqJfBzlg > > Regards, > Son. > > -- > You received this message because you are subscribed to the Google Groups "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Le\_Son\_Phung](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/le_son_phung/32/2169_2.png) [@Le\_Son\_Phung](https://discuss.elastic.co/u/Le_Son_Phung)\ **Post date:** [February 20, 2013, 11:50am UTC](https://discuss.elastic.co/t/auto-generated-id-safe-to-expose-in-url-param/10816/3 "2013-02-20T11:50:49Z")
Ah yes I mean document id. I will expose it in my front-end app and once the front-end app get the id it will use it to query against ES. So not sure if I need to escape document id when I pass it around in the http url? Separately, just curious, unique id in a sense of per cluster, per index, or per universe (hardly collided)? On Wednesday, 20 February 2013 19:44:01 UTC+8, David Pilato wrote: > You mean _document ID_? > > If so, yes it's auto generated if you don't provide it. > It's a unique id. > > Your URL doesn't seem to be an Elasticsearch URL, does it? > > -- > _David Pilato_ | _Technical Advocate_ | _[Elasticsearch.com](http://Elasticsearch.com)_ > @dadoonet [https://twitter.com/dadoonet](https://twitter.com/dadoonet) | @elasticsearchfr[https://twitter.com/elasticsearchfr](https://twitter.com/elasticsearchfr) > | @scrutmydocs [https://twitter.com/scrutmydocs](https://twitter.com/scrutmydocs) > > Le 20 févr. 2013 à 12:41, Le Son Phung \<[s...@wego.com](mailto:s...@wego.com) \\> a > écrit : > > Hi guys, > > Just want to ask how the index id is automatically generated and it is > safe to use in url param like this? > > /customers/?customer\_id=sh\_8aCaiQB-v4ZEqJfBzlg > > Regards, > Son. > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![drewr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/drewr/32/7803_2.png) [@drewr](https://discuss.elastic.co/u/drewr)\ **Post date:** [February 20, 2013, 4:31pm UTC](https://discuss.elastic.co/t/auto-generated-id-safe-to-expose-in-url-param/10816/4 "2013-02-20T16:31:25Z")
Le Son Phung wrote: > Ah yes I mean document id. > > I will expose it in my front-end app and once the front-end app get the id > it will use it to query against ES. > > So not sure if I need to escape document id when I pass it around in the > http url? > > Separately, just curious, unique id in a sense of per cluster, per index, > or per universe (hardly collided)? Per universe. It's a base64-encoded random UUID. Collisions are theoretically possible, but I would focus on other parts of your application first. 🙂 [http://git.io/L1-mpA](http://git.io/L1-mpA) -Drew -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:50am UTC](https://discuss.elastic.co/t/auto-generated-id-safe-to-expose-in-url-param/10816/5 "2017-07-06T02:50:29Z")