Compiling for x86_64 linux on mac is difficult.

rustup target add x86_64-unknown-linux-gnu
brew tap SergioBenitez/osxct
brew install x86_64-unknown-linux-gnu
CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=x86_64-unknown-linux-gnu-gcc cargo build --release --target=x86_64-unknown-linux-gnu

an ALPHABET environment variable for what characters would be used in generated urls

node
Welcome to Node.js v16.13.1.
Type ".help" for more information.
> str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'

a TOKEN environment variable is the authorization bearer token. You can use openssl to generate an unguessable one

openssl rand -base64 33
K9h69DfTsTjVPGUrgg2o3fv5hjIglNoIfci1+kMFfyAg

a PORT variable supplies what port to use upon start up, by default 8080. It should bind to all interfaces by binding to 0.0.0.0

a DATA variable supplies what json file should be used to store data. This is a very simple server, it will rewrite the json file every time new links are added.

a INCREMENT_SECRET variable makes the next short url unguessable You can use openssl to generate the secret url

openssl rand -base64 33
K9h69DfTsTjVPGUrgg2o3fv5hjIglNoIfci1+kMFfyAg

This application supports a .env file. You can reference and copy it to .env with your values.

To create a short link, PUT to / on the host with the bearer token. The body should be plaintext and the entire body is the redirect location.

curl --request PUT \
  --url https://cdyn.dev/ \
  --header 'Authorization: Bearer K9h69DfTsTjVPGUrgg2o3fv5hjIglNoIfci1+kMFfyAg' \
  --header 'Content-Type: text/plain' \
  --data https://github.com/cendyne/sh

The response body will be the path, so a response with /V will mean that the host will redirect to the value https://github.com/cendyne/sh when visited at /V. Thus https://cdyn.dev/V will redirect to https://github.com/cendyne/sh

This project was originally made to enable QR small QR codes. Unfortunately, I cannot feasibly get a domain short enough for micro qr codes, and most device camera apps do not natively recognize micro qr codes.

echo -n "http://cdyn.dev/V" | qrencode -t png -l L -o qr.png

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This project has been replaced by https://github.com/cendyne/short-url, a cloudflare worker based solution The API is a little different but it works on similar principals.