feat: support Koios public tier plan

fabianbormann commented 4 months ago

Set the default Koios API version to "1" since [POST] https://preprod.koios.rest/api/v0/address_info returns a 404.
Previously, there was no error handling in place if no Koios API key had been provided; it would result in a 403 error due to a malformed API token, as the authentication header was set to bearer undefined. This issue caused fetchAddressUTxOs to simply return [] without throwing an error (debugging took a while 😉). Therefore, a check has been added to the constructor of KoiosProvider, ensuring that the authentication header is not added if no header has been provided. Consequently, Koios now defaults (without providing an API token) to using the public tier instead of the free tier plan: https://koios.rest/pricing/Pricing.html. It may trigger a CORS error in a browser setup and a warning could make sense, as the public tier has CORS restrictions. However, if you use @meshjs/core instead of lucid to build the off-chain part of Aiken smart contracts (locally outside the browser world), this setup is quite lightweight and powerful from a technical standpoint.

vercel[bot] commented 4 months ago

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
mesh-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 25, 2024 3:50pm

vercel[bot] commented 4 months ago

@fabianbormann is attempting to deploy a commit to the MeshJS Team on Vercel.

A member of the Team first needs to authorize it.

MeshJS / mesh