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🧮 ABACUS - Rust Backend

This server is written in Rust (using Axum), exposes GraphQL API (via Juniper) and works with ArangoDB database behind the scenes.

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Install and run

To develop this server locally, it is necessary to use mirrord (https://mirrord.dev/). It allows running local code in the context of an existing Kubernetes cluster, with access to all other microservices and databases.

mirrord runs in two places—in the memory of your local process, and as a pod in your cloud environment. The two components work together to fuse your local process with its remote counterpart so that inputs to the remote pod are mirrored to the local process, and outputs from the local process are tunneled to the remote pod. This includes network traffic, file access, and environment variable—everything needed to make your local process “think” it's running in the cloud.

First, install mirrord:

brew install metalbear-co/mirrord/mirrord

Compile and run the application using in K8s context using mirrord:

cargo build && mirrord exec --config-file=./mirrord.json ./target/debug/server

The server is accessible on this URL: https://abacus.adeira.io/status/ping (not localhost!)

The default configuration uses Traffic Stealing and it is therefore necessary to send all requests (including the ones from your browser) with the correct X-Adeira-Mirrord-Steal-UUID header. Without this header, mirrord won't steal the request and send it to production Kubernetes pod as usual.

Note: there is currently no K8S cluster for development. Production only so—be careful. 💸

ArangoDB

To access ArangoDB from localhost, use port-forward, for example (change to the actual pod name):

kubectl port-forward pod/arangodb-single-server-sngl-spbqcrlf-3b4432 8529:8529

In case port-forward command does not work, make sure that the service name is correct:

kubectl -n default get svc

And open: http://127.0.0.1:8529/

Testing

(cd src/abacus && cargo clippy)
(cd src/abacus && cargo test)

There are some extra tests which are slow or require extra infrastructure (network access, ArangoDB). There tests are ignored by default but can be executed manually:

(cd src/abacus && cargo test -- --ignored)

Note: ignored tests are not being run on CI (at least not yet)!

Stripe

brew install stripe/stripe-cli/stripe
stripe login

This is how you can test Stripe webhooks:

stripe listen --forward-to localhost:5000/webhooks/stripe

And now (stripe trigger --help):

stripe trigger checkout.session.completed

The events must be sent via Stripe CLI because we are verifying the signatures.