# Params get encoded **URL:** \ **Category:** General Help/Support\ **Created:** [July 19, 2021, 12:58am UTC](https://discuss.prometheus.io/t/params-get-encoded/390 "2021-07-19T00:58:55Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![LianYi](https://avatars.discourse-cdn.com/v4/letter/l/8baadc/32.png) [@LianYi](https://discuss.prometheus.io/u/LianYi)\ **Post date:** [July 19, 2021, 12:58am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/1 "2021-07-19T00:58:55Z")
Hi Prometheus Team I want to know if i can prevent Prometheus from encoding the characters scrape\_configs: - job\_name: ‘somename’ params: prefix: [‘finatra’] url: [‘http://:9090/admin/metrics.json’] When i do that,i get params encoded: url=http%3A%2F%2F%3A9090%2Fadmin%2Fmetrics.json Is there any idea? Thanks ---
**Author:** ![tony\_casanova\_rtp\_nc](https://avatars.discourse-cdn.com/v4/letter/t/ecae2f/32.png) [@tony\_casanova\_rtp\_nc](https://discuss.prometheus.io/u/tony_casanova_rtp_nc)\ **Post date:** [July 25, 2021, 8:01pm UTC](https://discuss.prometheus.io/t/params-get-encoded/390/2 "2021-07-25T20:01:53Z")
Hi LianYi, The metrics path encoding can be avoided by using the metrics\_path option in the job. # The HTTP resource path on which to fetch metrics from targets. [metrics\_path: | default = /metrics] Reference: > **[Configuration | Prometheus](https://prometheus.io/docs/prometheus/latest/configuration/configuration/)** > > Prometheus project documentation for Configuration Example: - job\_name: ‘somename’ metrics\_path: /admin/metrics.json scrape\_interval: 20s static\_configs: - targets: [\:80’] I am not familiar with avoiding encoding of the general params. Good question. ---
**Author:** ![LianYi](https://avatars.discourse-cdn.com/v4/letter/l/8baadc/32.png) [@LianYi](https://discuss.prometheus.io/u/LianYi)\ **Post date:** [July 26, 2021, 1:15am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/3 "2021-07-26T01:15:03Z")
Thanks a lot for your reply just like your configurations: - job\_name: ‘somename’ metrics\_path: /admin/metrics.json scrape\_interval: 20s static\_configs: \* targets: [‘10.56.1.28:80’] the url is 10.56.1.28:80/admin/metrics.json * * * then i want to get some params, so i configure like this : - job\_name: ‘somename’ metrics\_path: /admin/metrics.json?url=http://1.1.1.1:9990/admin/metrics.json scrape\_interval: 20s static\_configs: \* targets: [‘10.56.1.28:80’] what i want is: 10.56.1.28:80/admin/metrics.json?url=http://1.1.1.1:9990/admin/metrics.json when i captured the packets from tcpdump,the url was encoded like this: 10.56.1.28:80/admin/metrics.json%3Furl=http%3A%2F%2F%1.1.1.1%3A9990/admin/metrics.json * * * then i got an answer from stackoverflow:[https://stackoverflow.com/questions/40172415/question-mark-in-prometheus-metrics-path-gets-encoded](https://stackoverflow.com/questions/40172415/question-mark-in-prometheus-metrics-path-gets-encoded) like the issue,i can’t get the correct url what i want yet! ---
**Author:** ![tony\_casanova\_rtp\_nc](https://avatars.discourse-cdn.com/v4/letter/t/ecae2f/32.png) [@tony\_casanova\_rtp\_nc](https://discuss.prometheus.io/u/tony_casanova_rtp_nc)\ **Post date:** [July 26, 2021, 1:36am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/4 "2021-07-26T01:36:07Z")
What is an example of a working URL? That should help convert to a Prometheus config. ---
**Author:** ![LianYi](https://avatars.discourse-cdn.com/v4/letter/l/8baadc/32.png) [@LianYi](https://discuss.prometheus.io/u/LianYi)\ **Post date:** [July 26, 2021, 2:04am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/5 "2021-07-26T02:04:57Z")
the working url what i want is: 10.56.1.28:80/admin/metrics.json?url=http://1.1.1.1:9990/admin/metrics.json but i got: 10.56.1.28:80/admin/metrics.json%3Furl=http%3A%2F%2F%1.1.1.1%3A9990/admin/metrics.json just like a ‘Get’ mode http request,but some parameters got encoded also some reserved characters in RFC3986,like “?” ,":","/" ---
**Author:** ![tony\_casanova\_rtp\_nc](https://avatars.discourse-cdn.com/v4/letter/t/ecae2f/32.png) [@tony\_casanova\_rtp\_nc](https://discuss.prometheus.io/u/tony_casanova_rtp_nc)\ **Post date:** [July 26, 2021, 12:59pm UTC](https://discuss.prometheus.io/t/params-get-encoded/390/6 "2021-07-26T12:59:38Z")
![prometheus_config_example](https://europe1.discourse-cdn.com/flex017/uploads/prometheus/original/1X/739eb8e69dc5555b23e13d656c738db9ca3c2059.png) The above might be closer but it looks like the “?” sign still gets encoded for the browser to handle it. ![prometheus_somename_parser_URL_encoded](https://europe1.discourse-cdn.com/flex017/uploads/prometheus/original/1X/cca8cf05fa4674a9234c47051db7242d26ce5a0f.png) When the “endpoint” URL is clicked I see the URL as: [http://10.56.1.28/admin/metrics.json%3Furl=http://1.1.1.1:9990/admin/metrics.json](http://10.56.1.28/admin/metrics.json%3Furl=http://1.1.1.1:9990/admin/metrics.json) I found this relating to the question mark: > > > > Hello All, > > We are trying to scrape targets using urls like following: > > http…://example.com:1234/service/metrics?&b1234 > > sample config: > > \`\`\` > \- job\_name: test-1 > metrics\_path: /service/metrics?&b1234 > scheme: http > static\_configs: > - targets: > - example.com:1234 > \`\`\` > > Here example.com is a VIP url which load balances across multiple JVMs. In order to connect to a specific JVM, an affinity url is constructed using "&b1234". The load balancer uses this to identify which JVM to connect. > However, Prometheus converts "?" to "%3F" while scraping and as a result gets 404. > Can you help us in identifying a solution for this. I tried using params, but it needs a key, value structure. > > Note: Due to security reasons, we cannot directly connect to the individual JVM ports. Also this is interesting: [https://www.debugcn.com/en/article/15572338.html](https://www.debugcn.com/en/article/15572338.html) ---
**Author:** ![LianYi](https://avatars.discourse-cdn.com/v4/letter/l/8baadc/32.png) [@LianYi](https://discuss.prometheus.io/u/LianYi)\ **Post date:** [July 27, 2021, 2:27am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/7 "2021-07-27T02:27:22Z")
Thanks a lot for your help As a result,we can not write these to metrics\_path so need to use params configuration? [https://stackoverflow.com/questions/40172415/question-mark-in-prometheus-metrics-path-gets-encoded](https://stackoverflow.com/questions/40172415/question-mark-in-prometheus-metrics-path-gets-encoded) looks well at this time ![image](https://europe1.discourse-cdn.com/flex017/uploads/prometheus/original/1X/af07a5c07b4b43ee2f6821477f7ce24dece0c5a6.png) But when I click the “Endpoint” URL,I get [http://10.56.1.28/metrics?prefix=finatra&url=http%3A%2F%2F1.1.1.1%3A9090%2Fadmin%2Fmetrics.json](http://10.56.1.28/metrics?prefix=finatra&url=http%3A%2F%2F1.1.1.1%3A9090%2Fadmin%2Fmetrics.json) of course, this is not what I want And will give rise to requesting false ---
**Author:** ![tony\_casanova\_rtp\_nc](https://avatars.discourse-cdn.com/v4/letter/t/ecae2f/32.png) [@tony\_casanova\_rtp\_nc](https://discuss.prometheus.io/u/tony_casanova_rtp_nc)\ **Post date:** [July 27, 2021, 1:58pm UTC](https://discuss.prometheus.io/t/params-get-encoded/390/8 "2021-07-27T13:58:32Z")
Looks like Prometheus “URL Encodes” the metrics\_path parameter URL by design. This video says “do not encode the whole URL”. [![](https://europe1.discourse-cdn.com/flex017/uploads/prometheus/original/1X/b50c71d0dda42de1693f6b1e02de67cd32e992b1.jpeg "What is URL Encoding? - URL Encode/Decode Explained - Web Development Tutorial") ](https://www.youtube.com/watch?v=lkAeX3T6A9I) My opinion is there should be an option to “Not URL encode” the metrics\_path at all. I guess we have to hope someone else provides some feedback. What happens when you click on the Prometheus target link? Does the target show any logs? ---
**Author:** ![LianYi](https://avatars.discourse-cdn.com/v4/letter/l/8baadc/32.png) [@LianYi](https://discuss.prometheus.io/u/LianYi)\ **Post date:** [July 28, 2021, 7:03am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/9 "2021-07-28T07:03:40Z")
I agree with you When I click on the target link, I get 404 because of the error URL So I test all the characters mentioned by RFC 3986: metrics\_path : :/?#[]@ !$&`()\*+,;= -.\_~ And I get: ![image](https://europe1.discourse-cdn.com/flex017/uploads/prometheus/original/1X/7f2c3b073d368aa631b526fb1f7c5cc38a24d99a.png) ---
**Author:** ![LianYi](https://avatars.discourse-cdn.com/v4/letter/l/8baadc/32.png) [@LianYi](https://discuss.prometheus.io/u/LianYi)\ **Post date:** [July 28, 2021, 8:12am UTC](https://discuss.prometheus.io/t/params-get-encoded/390/10 "2021-07-28T08:12:20Z")
[![image](https://europe1.discourse-cdn.com/flex017/uploads/prometheus/original/1X/cf47dd3eedf532c62c0ec0adfe62d0a61b28196f.png)](https://www.ietf.org/rfc/rfc3986.txt) Maybe they are right And the working of decoding URL must do by the server