Link Rewriter

Simple HTTP server to do selective redirects, based on the hostname and an optional Path.

Get started

$ go build -o rewriter
$ # create config.yaml
$ ./rewriter

Overview

This service rewrites Deep Links so that static web sites can handle URI parameters without breaking.

A URL like https://vocdoni.link/entities/0x1234 can be easily handled by a mobile app. However, a static web site could load the /entities/ path but there is no straighforward way to tell static web servers to ignore the 0x1234 parameter. So the /entities/0x1234 would be attempted to load, and users would get a 404.

In addition, deep links like https://vocdoni.link/entities/0x1234 may need to be redirected to app.vocdoni.net whereas deep links like https://vocdoni.link/poll/... may need to point to a different server.

This server allows to fulfill these scenarios.

Configuration

Create a config.yaml file on the same path as the server.

cmd:
  port: 8080
  verbose: true
replacements:
  - source: localhost:8080
    target: target.domain.net
    path: /
  - source: source2.domain
    target: target.domain2.net
    path: /validation

For each domain and path that you want to capture, add an item to the replacements array.

In the example:

• Calling http://localhost:8080 would redirect to https://target.domain.net
• Calling https://source2.domain/validation/0x1234 would redirect to https://target.domain2.net/validation#/0x1234

Make sure that the trailing slashes are correctly defined in the config file, and that the source URL's match the expected path.

If a replacement defined contains an empty path or it is set to / then, the entire URI path will be rewritten in the hash.