Aperture

Aperture is a reverse proxy that acts as a payment and authentication gateway for Lightning Network powered APIs. It can handle gRPC requests over HTTP/2 as well as REST over HTTP/1 and 2.
Aperture receives incoming connections, verifies the validity of the LSAT and either forwards the request to the appropriate end point, or obtains a Macaroon and sends it together with a Lightning invoice and the HTTP status code 402 Payment Required.
Aperture is currently used in production in Lightning Loop and Pool.
Install Aperture
Requirements: go 1.13 or later
git clone https://github.com/lightninglabs/aperture.git
cd aperture
make install
cp sample-conf.yaml aperture.yaml
By default Aperture uses port 8081. This port needs to be reachable from the outside.
Aperture will create a TLS key and self-signed certificate. To run Aperture in production, it will need a valid TLS certificate for the domain it is running on.
Run Aperture
To run Aperture, simply run the following command from within aperture's directory.
./aperture
LSAT demo
A demonstration of LSATs can be found at https://lsat-playground-bucko.vercel.app/ (Testnet version here)
Here you can go through the process of minting a Macaroon, turning it into an LSAT, restricting and validating it as well as see code snippets.
​See how the client interceptor is coded in Aperture​
Watch: Using Aperture

LSAT

Protocol Specification

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Install Aperture

Run Aperture

LSAT demo