Kong service path regex. 1 Current Behavior we are upgrading Kong from 2.

Kong service path regex. 1 kong 3. To do that, I need to create a service with host: user-service You don’t need to setup the entire path in Kong for proxying your API. Kong Manager base path. Related Topics Topic Replies Views Activity; How can I implement the Kong Nation Excat match of path in a route. 0, there was no need to specify the encoded characters in the regex as the request uri that was matched OAS file has the path specified below. For example, if an ingress has annotation We are having issue with Route matching. Try calling to ` /account/anystring/some `. HTTPRoute can probably use the same mechanism to implement regexp-based matches. 0+. Define the route path in regex format in the Route entity If the annotation is set, paths with the specified prefix is considered as paths with regex match and will be translated to ~ started path in Kong. service. Then this part . You can leverage regex capture groups to extract the value of those path segments Prefix paths are always evaluated before regex paths. json$ Thanks @thibaultcha, its working. Update the first service to be regex now like: ~ /account$ 5. 0 the prefix(~) will be added to the routes in the database automatically and results in a configuration drift between the routes database and config file, as per the official documentation. Skip to content | Docs. 2. Step1. request. You will need to set strip_path to true and also set proxy. I have the following configuration: services: - name: status url: https://mockbin. If the Route is defined with path: /api/v1/resources then /api/v1/resources/10/private-subresource is Regex based path matching. Thank you for your fast reply Harry. path property to ${service_path}. 1. Please check official doc for detail. In order to enable more accurate path matching, ingress-nginx first orders the paths by descending length before writing them to the NGINX template as location blocks. hbagdi June 28, 2019, 5:03pm 2. 0, It’s also best to reduce the number of Route entities created by leveraging the logical combination capability of the expressions language. Anything that does not match is considered a regex path. If you wanna keep the paths as they are, you can configure IngressClassParameters with enableLegacyRegexDetection: true to make KIC handle legacy regex paths for you as before to make the migration from Kong 2. When I define a path in my Ingress which uses a regex, it does not work since it does not get specified as a regex in the The ~ operator does not automatically anchor the regex to the beginning of the input. just strip out the last one. foo. bar/service/path. eg spec: rules: http: paths: path: /billing/{billingId}/details backend: serviceName: billing servicePort: 80 Hello We are upgrading our product with kong right now. fgsalomon June 29, 2019, 10:23am 3. I can get services and routes configured easily and they work fine, but when I try and put regex expressions to add wildcards to my route paths - I simply cannot get it going. To make requests to services via Kong, they first need to be One method is to create another pair of service and route. Example ¶ In Kong 3. . Explore the API Specs. API Specs. * of the next pattern will match from the first g until the end of the string. x With the release of Kong Gateway 3. *|kyc-debug. This piece is correct. , /my-service/healthz). Accepted format: Path must start with a / Path must not end with a / (except for the /) Create a service with a non-regex route like ` /account ` 2. Combining routes. I’m new to Kong and I’m experimenting generating a declarative yaml file for Kong based on an OpenAPI documentation file. Using Regex in paths. View all API Specs Documentation. The engine will backtrack to last forward slash to fullfill the In the above example, we route / to the book-list service and routes matching /book/\d+ to the book-detail service. There is probably more to it but I see two resulting side effects of Kong not supporting path parameters: Kong Blindness. (\w+)/instead of (?&lt;user_id&gt;\w+). /users), and regexes (e. Adding the capture groups to the path means the path is a considered a regex path i. Kong Docs. 0. X to 3. Question is though; do you need to match the full path. But with Kong request-transformer plugin, you can realize it without creating a duplicated service entity of the same application. You can simply have a Service pointing to your API and then have a route with path /v1. anbazhagan_natarajan December 8, 2021, 1:04pm 3. Kong Gateway also offers other options for configuration management I want to use the Ingress controller to register services in kong those services should be accessible through api. 7. The deck convert command does not address the issue as it only adds the new ~ character to all regex route paths, and changes the version of the declarative config. Kong Konnect. Before you begin ensure that you have Installed Kong Ingress Controller Hi, Use case: Service with the following route /v1/Resource1/id/Resource2. *|trigger-. This is the ingress, but it’s Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company To do that, I need to create a service with host: user-service and path: /user/(?P<uuid>[\w\d\-]+). x, and we are facing a bug when loading routes with regex, We used Kong Data priority: 10 middlewares: - name: middleware-frontend-replacement-path services: - kind: Service name: frontend port: {{ . Our backend APIs have no idea In short, you should be fine changing your regex paths to start with /~ (i. 'paths []=/internal/test/\d+' This allow you to define two routes with two paths: /service and /service/resource, and ensure that the former does not “shadow” the latter. @fazlerabby7 did you manage to get it work ? i’m I am using Nginx Ingress Controller helm chart 0. So in for example /ghi/jkl, the first match will be the first forward slash. set_path(), you are overriding the path set by the core proxy. For example: curl -i -X POST --url http://localhost:8001/services/example-service/routes --data. Notice the non-capturing group notation: (?:<regex>). x regex_priority - (Optional) A number used to choose which route resolves a given request when several routes match it using regexes simultaneously. 3. HTTPRoute supports HTTPPathMatch with type RegularExpression. Bu @fazlerabby7 did you manage to get it work ? i’m facing the same issue. We rely My company recently upgraded to Kong Enterprise 0. Please note that KongIngress is an extension to the Ingress resource. This allows to skip numbering for these groups since I need everything relevant to be in the first group in order for it to work, because rewrite-target: "/$1". This means that you can use only a subset of regular expressions that are valid POSIX regexes. Related Topics Topic Replies Views Activity; Route的path match problem. That's why we see the behaviour mentioned above. Or only a prefix? In the latter case you don't need a It is possible to use a RegEx path to capture the desired requests and then use the captured path in an "advanced template" transformation in the Request Transformer Advanced I am using Kong 3. Steps To Reproduce. When updating this parameter, it’s recommended to update the path in admin_gui_url as well. x to Kong 3. io/v1beta1 kind: Ingress Most likely, your API will return HTTP 404 in the event than a request hits a non-existing path (e. /lead/foo). /users/\d+/profile). path ~ r#"/foo/\d"# could match a path like /foo/1 or /some/thing/foo/1. and deck converts the path to the regex-based route ~/kong/test$ leading to "no route matched" errors when accessing extended paths [/kong/test/<id>]. If you’d rather enforce that Kong can only proxy those two paths, then a regex path is your goto choice (also documented in the above resource). 2: 13404: February 8, 2018 How to use regular expressions in Kong service path How to pass path parameters from routes to third party api? for example: API: [GET] /products/{product:id}/status Kong proxy: Service: /api/v1/ route: [GET] /products/{product:id}/status ### Summary We are having issue with Route matching. Please refer You can configure regex on the route path, which is used to match incoming requests. For example, we want request path /sea/api/rest to /sea/api. apiVersion: networking. In the particular example, '[^\\/]' should be '[^/]' The inso cli tool has been fixed as of version 3. The main attribute of a Service is the URL (where Kong should proxy traffic to), which can be set as a single string URL or by specifying the protocol, host, port and path properties. Long story short: the uris attribute can contain plain URL paths (e. Meaning http. Paths []string A list of paths that match this Route Preserve Host bool When matching a Route via one of the hosts domain names, use the request Host header in the upstream request headers. mynamespace port: 8080 path: / Skip to main content. we have achieved this function in a non-Kubernetes environment, but it’s not working in the k8s. how Kong achieve this? thanks. Please read the warning before using regular expressions in your ingress definitions. 1) and not PCRE, which is used by Kong. I. Documentation for Kong, the Cloud Connectivity Company for APIs and Microservices. Looking at the updated list of annotations, we can see the new path-regex annotation was added. I want to redirect the request path to a different backend path. If you want to match from the beginning of the string (anchoring the regex), then you must manually specify it with the ^ meta-character. Stack Overflow. This guide demonstrates host and path rewrites using Ingress and Service configuration. *|(/js/). path: /~/api/(debug. Values. See the Proxy Reference for more details on regex paths. As @jvandervelden said, the core proxy will strip the path (as per the strip_path option), and if you wish to get the temporarily updated path (that is, the Documentation for Kong, the Cloud Connectivity Company for APIs and Microservices. *). Acceptance criteria. rockmantist January 28, 2019, 4:56am 2. 0: 478: March 13, 2019 Path prefix regex fails to identify an empty slash Is there an existing issue for this? I have searched the existing issues Kong version 3. , /my-service), and each route for that service uses the prefix (e. I can usually get one working, but not the We’re currently evaluating the latest Kong version, especially Services and Routes API. If you prefer to match a HTTP requests path against a regex, you can write the following route: I want to route http://kong-gateway/api/v1/user/(?P<uuid>[\w\d\-]+) to http://user-service/user/(?P<uuid>[\w\d\-]+). x to 3. Irshad_G April 13, 2020, 5:52am 3. Even though these are two very different APIS, Kong cannot tell them apart Kong evaluates prefix paths by length: the longest prefix paths are evaluated first. We are not using any header or hosts for request path matching. 12, so as part of the migration we switched to services and routes. ´regex_priority´ is used to disambiguate between two requests that both have regexes. The Expressions DSL also allows you to create complex router match conditions: See more To route the service’s upstream endpoint to the new URL, you could set up a service with the path /api/old/ and a route with the path /new/api. If this pattern matches, then the path is a "regular" plain URI. You can access these based on I'm trying to create a service in kong, which has as url which receives a pathvariable "example / {id} / example" but kong throws the following exception curl to create the service curl -i -X POS Skip to main content. However, Kong will evaluate regex paths based on the regex_priority attribute of Routes from highest priority to lowest. k8s. Lightweight, fast, and flexible cloud-native API gateway. Questions. Note that the path-regex annotation applies only to paths defined on the corresponding Minion Ingress. Regex URI validation rules How can we define a regex to remove “/something/” from the path? Thank you. . 1 Like . For example, http. Some regex changes are necessary. If you use the ingress controller, you should use unnamed groups, e. In the above example, Kong is blind to the difference between these two APIs. It is thus your responsibility to do any string manipulation you desire on the path before setting it. g. path ~ r#"^/foo/\d"#. Kong Gateway can also handle more complex The trick here is that, in the Route configuration path parameter is a regex. Steps to Route Kong Enterprise Requests. When Kong detects a regex (we will see how below), it will evaluate it with the PCRE engine. That helps me Thanks. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Yes, kong support regex in path. The solution is this regex /?$|(/mainApp/latest). Note: I'm using an nginx ingress controller, which should be able to support regex. In your Upgrade to Kong Gateway 3. Controls how the Service path, Route path and requested path are combined when sending a request to the upstream. 1 Current Behavior we are upgrading Kong from 2. Create another service with a regex route on a subpath of the previous like ` ~/account/. PCRE is a Kong dependency and is shipped with the Kong distribution packages. *\/) uses an alternation which matches either a forward slash or any characters 0+ times greedy followed by matching a forward slash. 0 and nginx ingress controller tag 1. And at this moment i set-up KONG path with the following path regex : /(?i)v1/Resource1 It turns out that Ingress Spec supports the POSIX regular expression (as defined by IEEE Std 1003. ANSWER. This article shows how to create a dynamic route path by using the request-transformer plugin. Define the route path in regex format in the Route entity when I remove regex_priority from route1 and route2, the behavior is corret。 That doesn't seem to be correct. Yes, the docs could be clarified, definitely (as stated by my year old hello, I’m using kong open API gateway version 3. For example, in 2. But regex paths are also evaluated after prefix paths and take precedence if there is a match (over the previous prefix match). The problem i’m trying to solve occurs when there are overlap Hi, If you set the request path via kong. Multi-LLM AI Gateway for GenAI Your regex (\/|. Prior to Kong 2. It updates the path /tea/[A-Z0-9] using the case_insensitive regex modifier. There are two routes configured under different services having paths with regex, where the request for only one route is matched & Rewrite Host and Paths. In my case, i have multiple Ingresses that have the same Service as a backend, and i’m trying to rewrite the path on each ingress to another path: Ingress 1: /foo → service/bar; Ingress 2: /somepath → service/anotherpath We’ll deploy Kong as a web service and configure it to route to our upstream private services based on the request path. Since, it’s an ID that you are trying express, I imagine it would be possible for you to know which characters can be present in the Since route 2 has more matching attributes than 1 it should be evaluated first, and you may add regex_priority=10 to the second route for future proofing (the default regex_priority is 0, and a higher priority means the route’s regex will be evaluated first). Add a path with an regular expression. x | Kong Docs. For Kong Gateway to parse a path that contains a regular expression, the path must be prefixed with a ~. Path Priority ¶ In NGINX, regular expressions follow a first match policy. I Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog A few words on regex URIs usage and common pitfalls. 2 in dbless mode. logically, the capture groups imply that this is a regex path as the capture group uses the ( ) characters. By combining routes into a single expression, this results in fewer But that only works when the KongIngress is attached to a service. HI, I am using Kong 3. e. However, not having native support for path parameters is problematic. port }} As everyone knows, react-router normally requires everything to hit the / endpoint to solve internal paths, and the static content still needs to be served. To create a new route object using expressions, send a POST request to the services endpoint: In this example, you associated a new route object with the path /mock to the existing service example-service. 6. Kong accepts regex for path routing rules allowing the configuration to be specific, looking for requests starting with /book/ and then a book id using the regex \d+ (at least one number) this leaves routes starting with /book KIC currently supports regex matches for Ingress V1 when pathType is ImplementationSpecific. Kong AI Gateway. Single platform for SaaS end-to-end connectivity. +/some ` 3. In Kong Gateway, a Service is an entity representing an external upstream API or microservice — for example, a data admin_gui_path. e our project is running inside docker containers together with gateway (currently Openresty). so, the "longest path wins" rule is only for prefix paths, not regexes. Updated path (location) in the NGINX config file: location ~* "^/tea/[A-Z0-9]". I can get services and routes configured easily and they work fine, but when I try and put regex expressions to add The following tutorial walks through managing and testing services and routes using the Kong Gateway Admin API. * I have a service with ingress of /api/my-service My kong configuration look like this: services: - name: myService protocol: http host: myservice. That is what the ^~ modifier prevents (as discussed in #4153 - thanks for digging there btw). I did figure this out finally (right after posting the question) . 15. If set to false, the upstream Host header I tried putting /t[a-z]a for the first path, but then any path I tried that should match that regex took me to the default backend instead of the service I expected. This configuration parameter allows the user to customize the path prefix where Kong Manager is served. It is possible to define HTTPRoute matches based on regular expressions. 0, kubernetes 1. Kong Gateway. kong-gateway. 33; previously we were using Kong 0. How can I resolve the issue where deck conversion of an OpenAPI Specification (OAS) file to Kong configuration using deck file openapi2kong Second solution - rewrite current ingress to work with rewrite-path. We use path prefixes for routing, so each service is “namespaced” by a path prefix (e. With the original routing engine, there was a 1:1 Ingress path to Kong route relationship. 8. Kubernetes users: Version v1beta1 of the Ingress specification does not allow the use of named regex capture groups in paths. x, a route path that was expressed like this: If you have upgraded your kong deployment from 2. paths: /kong/test get: . path_handling - (Optional) Controls how the Service path, Route path and requested path are combined when sending a If you are new to Kong, a Service object represents the upstream API or Service. You would expect hitting the second service, but in reality hits the first. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent . Gateway proxies external url incoming to external interface into internal docker overlay There is no way to implement the Ingress Exact and Prefix path matches using Kong's plain paths (exact matches have no dedicated type and plain prefix matching has some small differences from the spec), so the controller creates regex paths for them. Kong Nation How to use regular expressions in Kong service path . 0-alpine (via Docker image). Regex paths are furthermore evaluated before prefix paths. 0/. Kong had a security flaw that was fixed in v2. We How can I add regex in the path in the spec below? Thanks. com/. If multiple routes result in the same Service and Plugin config being used, they should be combined into a single expression Route with the || logical or operator. Kong is often set up in tandem with a database such as PostgreSQL, which When configuring access to your API, you’ll start by specifying a Service. There are two routes configured under different services having paths with regex, where the request for only one route is matched & other is returning 404 as its matched incorrectly & sent to wrong service where that route is not hosted. thibaultcha: ^/data. And what is unclear is how to implement dynamic upstream routing based on a original URL. 4. For a path to be considered a Adjust the regexes and matching rules accordingly to your needs and help yourself with a regex matching tool such as https://regex101. org/bin/xxx Hi everyone, hope you’re all good. 0, route paths that use regular expressions are no longer automatically detected. Proxy Reference - v2. This security flaw was fixed by pre-normalising the request uri by default when using regex in your route paths. x uses a new regex library which does not allow regex routes to have unnecessary escape characters. fhczl wwxlt bcqjjk hcgjb dxsnwv sle scegx xpygnjj wmsplm fqo