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A simple Golang proxy which adds CORS headers to an incoming request.

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Go Go Cors Proxy

A simple Go proxy which adds CORS headers to an incoming request. This allows your application to execute requests on a resource hosted on a different domain.

Getting Started

  1. Download and install Go
  2. Setup your $GOROOT and $GOPATH in your bashrc / zshrc, for example:
    export GOROOT=/usr/local/go
    export GOPATH=/dev/go
    export PATH=$PATH:$GOROOT/bin:$GOPATH/bin

Application Flags

Flag Default Description
target localhost:8080 host:port to proxy requests to
listen localhost:8181 host:port to listen on
protocol http protocol used by the target
host localhost:3000 host header to be used for the proxy request
origin http://localhost:3000 origin header to be used for the proxy request
methods true enable / disable default access control methods
debug false enable / disable debug messages

Running The Application

Once Go has been correctly installed and configured, execute:

go run proxy.go -target=0.0.0.0:8080 -listen=0.0.0.0:8181 -host=localhost:3000 -origin=http://localhost:3000

Now all incoming requests on port 8181 will be proxied to http://0.0.0.0:8080

Docker

The Docker image is hosted on Docker Hub

Using The Docker Image

Please see the docker-compose.yml file for an example of how the image may be used.

Building The Docker Image

To build the docker image you can simply run: docker-compose up

Contribution Guidelines

Pull Requests

Here are some basic rules to follow to ensure timely addition of your request:

  1. Match coding style (braces, spacing, etc.).
  2. If it is a feature, bugfix, or anything please only change the minimum amount of code required to satisfy the change.
  3. Please keep PR titles easy to read and descriptive of changes, this will make them easier to merge :)
  4. Pull requests must be made against develop branch. Any other branch (unless specified by the maintainers) will get rejected.
  5. Check for existing issues first, before filing a new issue.

License

MIT License

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A simple Golang proxy which adds CORS headers to an incoming request.

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