OPDATA-7792: InfraLabs EA

[yasssuzcll]

OPDATA-7792

Description

Adds a new external adapter for [Infralabs], exposing a single ushp endpoint.

The adapter fetches the latest value from the Infralabs REST API, verifies the response's cryptographic signature using an AWS KMS-hosted public key, validates data freshness against a configurable staleness threshold, and rescales the integer result to 8 decimal places before returning it.

Key implementation details:

• KMS signature verification: the response signature is verified against the AWS KMS public key. On failure, the adapter attempts a one-time key refresh to handle provider-side key rotations before rejecting the response.
• Staleness guard: responses older than USHP_MAX_STALENESS_SECS are rejected with a 502.
• Integer rescaling: the provider's value/scale pair is converted to a fixed 8-decimal output using BigInt arithmetic to avoid floating-point loss.

Changes

• New adapter at packages/sources/infralabs
• ushp endpoint with no input parameters
• InfralabsTransport base class with KMS key caching and rotation support
• Unit and integration tests
• README

Steps to Test

# Set required env vars
export API_KEY=<infralabs-api-key>
export AWS_ACCESS_KEY_ID=<aws-key-id>
export AWS_SECRET_ACCESS_KEY=<aws-secret>

curl -X POST http://localhost:8080 \
  -H 'Content-Type: application/json' \
  -d '{"data": {"endpoint": "ushp"}}'

Expected response shape:
{
  "result": "10039683",
  "data": {
    "price": 1.00396832,
    "rawValue": "1003968325",
    "scale": 9,
    "lastUpdatedAt": 1718000000,
    "signature": "<base64>"
  },
  "statusCode": 200
}

Quality Assurance

• If a new adapter was made, or an existing one was modified so that its environment variables have changed, update the relevant infra-k8s configuration file.
• If a new adapter was made, or an existing one was modified so that its environment variables have changed, update the relevant adapter-secrets configuration file.
• If a new adapter was made, or a new endpoint was added, update the test-payload.json file with relevant requests.
• The branch naming follows git flow (feature/x, chore/x, release/x, hotfix/x, fix/x) or is created from Jira.
• This is related to a maximum of one Jira story or GitHub issue.
• Types are safe (avoid TypeScript/TSLint features like any and disable, instead use more specific types).
• All code changes have 100% unit and integration test coverage. If testing is not applicable or too difficult to justify doing, the reasoning should be documented explicitly in the PR.

[changeset-bot]

🦋 Changeset detected

Latest commit: 587548e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@chainlink/infralabs-adapter	Major

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