krakend | Ultra performant API Gateway with middlewares | REST library

by devopsfaith Go Version: v1.3.0 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | krakend Summary

krakend is a Go library typically used in Web Services, REST applications. krakend has no bugs, it has no vulnerabilities and it has medium support. However krakend has a Non-SPDX License. You can download it from GitHub.

An open framework to assemble ultra performance API Gateways with middlewares; core service of the KrakenD API Gateway. Looking for the API gateway ready to use?. Site | Download | Build | Documentation | Blog.

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Quality

Security

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Support

krakend has a medium active ecosystem.

It has 3795 star(s) with 367 fork(s). There are 111 watchers for this library.

It had no major release in the last 12 months.

There are 45 open issues and 222 have been closed. On average issues are closed in 126 days. There are 8 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of krakend is v1.3.0

Quality

krakend has 0 bugs and 0 code smells.

Security

krakend has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

krakend code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

krakend has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

krakend releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

It has 14619 lines of code, 659 functions and 115 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

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krakend Key Features

No Key Features are available at this moment for krakend.

krakend Examples and Code Snippets

No Code Snippets are available at this moment for krakend.

Community Discussions

Trending Discussions on krakend

Krakend can't get running services from consul (Docker)

How to forbid access to certain endpoint for requests out of localhost using KrakenD?

Krakend download for windows not available

json: cannot unmarshal object into Go value of type []interface {}

Wildcard routes on Krakend CE

Krakend generate command not found

Why is an HTTP 500 returned when hitting API endpoint via KrakenD API Gateway?

How to apply rate limits on backend configuration in krakenD

Krakend is masking Client IP address

How to configure API gateway in microservice architecture inside docker containers

QUESTION

Krakend can't get running services from consul (Docker)

Asked 2022-Mar-23 at 16:12

I am using Consul as SD and while I am running multiple instances I want make gateway recognize them all to load balance. In case of hardcoded host for Krakend config everything works fine

I was going step by step with this: https://www.krakend.io/docs/backends/service-discovery/

Sending

dig @127.0.0.1 -p 8600 user-ms.service.consul SRV gives me response as well (on consul logs a also see that I've made a request)

But when I am making request via krakenD I am getting "no hosts available" and according to logs request wasn't send to consul

Here is a docker-compose file:

...

ANSWER

Answered 2022-Mar-23 at 16:12

when I am making request via krakenD I am getting "no hosts available" and according to logs request wasn't send to consul

The reason your request is failing is because Consul's DNS server listens on the non-standard port of 8600. Kraken does not appear to support configuring a custom DNS IP and non-standard port. It uses the underlying host's configured nameservers in /etc/resolv.conf resolve SRV requests, and expects these IPs to be reachable over port 53.

The following is a Docker compose file that includes the following changes to allow Kraken to resolve DNS against Consul.

Source https://stackoverflow.com/questions/71561045

QUESTION

How to forbid access to certain endpoint for requests out of localhost using KrakenD?

Asked 2022-Mar-15 at 09:50

I have two endpoints and I want one of them to be accessible by requests from the localhost only. The other one should receive requests from anywhere. In the Security section of the documentation I found the next configuration:

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ANSWER

Answered 2022-Mar-15 at 09:50

KrakenD Enterprise solves that for you. But if you are with the Community version, then you can use the Common Expression Language (CEL) component.

Although it's much more limited than IP filtering (Enterprise) itself, CEL allows you to write pre-conditions before your backends are actually hit.

An example that checks that a request is coming from localhost (IPv6):

Source https://stackoverflow.com/questions/71339535

QUESTION

Krakend download for windows not available

Asked 2022-Mar-15 at 09:05

Krakend on their official website don't have downloadable .exe file for windows platform.

Does only to work with krakend on the windows is using docker ?

...

ANSWER

Answered 2022-Mar-15 at 09:05

KrakenD does not provide native support for Windows as it is too much effort for a product that is server based. Still, you can use KrakenD on Windows using Docker.

Source https://stackoverflow.com/questions/71477514

QUESTION

json: cannot unmarshal object into Go value of type []interface {}

Asked 2022-Mar-15 at 03:44

I am using krakend and local nodejs server.

As per : Using KrakenD with local nodejs server

I have created the krakend and nodejs server. It is up and Running and the communication between krakend and nodejs server is properly going on. But, the api response is JSON and while giving response krakend printing

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ANSWER

Answered 2022-Mar-15 at 03:44

I am able to get it done via removing the flag

Source https://stackoverflow.com/questions/71476560

QUESTION

Wildcard routes on Krakend CE

Asked 2022-Jan-08 at 13:22

I am trying to enable the wildcard plugin on Krakend following the official documentation (https://www.krakend.io/docs/enterprise/endpoints/wildcard/). I am currently using the CE edition, someone knows if there is a similar plugin for this version? And where can I find the plugins available for it, since I was trying to check on /opt/krakend/plugins of official devopsfaith/krakend docker image but it is empty.

...

ANSWER

Answered 2022-Jan-08 at 13:22

the wildcard plugin is only available on the Enterprise edition. Check the link you passed that contains "enterprise" in the URL.

All functionalities of the community edition are already embedded in the final binary and there is no need to enable any plugins. Functionalities are activated by declaring its namespace in the extra_config. Plugins are used when you want to extend KrakenD functionalities with your own code. KrakenD Enterprise adds several functionalities through custom plugins, and others using middlewares.

Source https://stackoverflow.com/questions/70624284

QUESTION

Krakend generate command not found

Asked 2021-Dec-21 at 08:46

I am using krakend version 1.4.0 docs say I can run generate commands to get OpenAPI, postman or config to graph.

when I try to run any of these commands. I get Error: unknown command "generate" for "krakend"

do I need to do something differently to enable generate commands? Heres a link for generator commands. https://www.krakend.io/docs/enterprise/commands/openapi/

...

ANSWER

Answered 2021-Dec-21 at 08:46

You are passing a KrakenD Enterprise documentation link, but you are using the community Edition. There is no command generate on the free version as per 1.4.

Source https://stackoverflow.com/questions/69707830

QUESTION

Why is an HTTP 500 returned when hitting API endpoint via KrakenD API Gateway?

Asked 2021-Dec-21 at 08:44

Problem summary:

I have a k3s instance running on 192.168.23.231. Port 30001 is mapped to a REST API app I built. Port 31166 is mapped to Krakend. When I enter http://192.168.23.231:31166/datamanager/hello into my browser, I get an HTTP 500 error message stating "http://192.168.23.231 is currently unable to handle this request."

If I browse to http://192.168.23.231:30001/hello, I get "Hello World" as expected, so I know the REST API is running correctly. My expectation is the Krakend endpoint would return the same thing, but it does not.

Here is an excerpt from my krakend.json config file showing the end point configuration:

...

ANSWER

Answered 2021-Dec-21 at 08:44

The 500 error is the default status code when KrakenD is unable to process your backend response.

In the KrakenD configuration you are showing, we can see that you are telling KrakenD that the response from your backend (the encoding) is a JSON object, but instead your backend returns a string Hello World, which is not a JSON.

The KrakenD logs will show something like:

Error #01: invalid character 'H' looking for beginning of value

And that H is from Hello World.

If you'd like to consume strings instead of json use string as the value of encoding. If you want the response as is from your backend, use no-op both in encoding and output_encoding

Source https://stackoverflow.com/questions/69905590

QUESTION

How to apply rate limits on backend configuration in krakenD

Asked 2021-Dec-21 at 08:25

I have a krakend configuration for endpoint as below

...

ANSWER

Answered 2021-Dec-21 at 08:25

It looks like your extra configuration is misplaced. The router rate limit goes inside the endpoint, not the backend. Use this:

Source https://stackoverflow.com/questions/70426046

QUESTION

Krakend is masking Client IP address

Asked 2021-Oct-07 at 07:24

I have a python program that fetches the client IP using request.client.host headers and Fast API. This program is running on a kubernetes pod(ip-pod). I have another Gateway API implemented using KrakenD and this runs on another pod in kubernetes cluster. The Kubernetes yaml files for both(ip-pod and KrakenD) have the property externalTrafficPolicy: Local I am unable to retrieve the real IP of the user and this could be because KrakenD is not allowing the real IP to reach to the ip-pod. I have tested the program by exposing the ip-pod to the internet using type: LoadBalancer and that way it gives the correct client IP. But when I use the KrakenD gateway, the IP is something different(private IP).

...

ANSWER

Answered 2021-Oct-06 at 13:58

You can use the no-op with krakenD which will forward request to the backend

https://www.krakend.io/docs/endpoints/no-op/

you can check parameter forwarding config in your YAML of KrakenD also

Source https://stackoverflow.com/questions/69466985

QUESTION

How to configure API gateway in microservice architecture inside docker containers

Asked 2021-Sep-14 at 16:42

I am fairly new and was building a microservice using nodejs. My problem is that my API gateway is throwing errors when I start my containers using docker compose. I can send request to my service containers directly and the API's are responding. But when I forward them via API gateway I am having problems. emphasized text

Following are my files in apiGateway directory: Docker file:

...

ANSWER

Answered 2021-Sep-14 at 05:50

You should put service names and service exposed ports (both defined in docker-comose.yml) in api gateway endpoints configuration. For example, auth-service:4000 instead of localhost:4000.

When you succeed to connect to localhost:4000 you connect to you docker host (your machine, vm) which routes the requests to container directly.

Source https://stackoverflow.com/questions/69172348

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install krakend

You can download it from GitHub.

Support

We are always happy to receive contributions. If you have questions, suggestions, bugs please open an issue. If you want to submit the code, create the issue and send us a pull request for review. If you want to contribute on the KrakenD API Gateway binary see the builder.

Find more information at: