Goldmine
Transitions

Fetch a single contract transition by ID

POST
/contracts.v1.Contracts/GetTransition

Returns one transition between two contract evaluation snapshots, recording how a single item changed (added, updated, or removed) from one snapshot to the next.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://loading/contracts.v1.Contracts/GetTransition" \  -H "Content-Type: application/json" \  -d '{    "contractId": "EBESExQVFhcYGRobHB0eHw==",    "fromSnapshotId": "6",    "toSnapshotId": "7",    "transitionId": "dHJhbnNpdGlvbi0wMDAx"  }'
{
  "transition": {
    "contractId": "EBESExQVFhcYGRobHB0eHw==",
    "fromSnapshotId": "6",
    "toSnapshotId": "7",
    "id": "dHJhbnNpdGlvbi0wMDAx",
    "type": "added",
    "marketHashName": "AK-47 | Redline (Field-Tested)",
    "createdAt": "2026-04-01T12:15:00Z",
    "updatedAt": "2026-04-01T12:15:00Z"
  }
}
{
  "code": "invalid_argument",
  "message": "The request was malformed, such as a missing required field or an unparseable cursor."
}
{
  "code": "unauthenticated",
  "message": "The request lacks a valid API key in the Authorization header."
}
{
  "code": "permission_denied",
  "message": "The API key is not allowed to perform this action on this workspace."
}
{
  "code": "not_found",
  "message": "The requested resource does not exist in this workspace."
}
{
  "code": "resource_exhausted",
  "message": "The request was rate limited. Slow down and retry later."
}
{
  "code": "internal",
  "message": "An internal server error occurred."
}

ListSnapshots

Returns a paged list of evaluation snapshot sequence numbers for a contract, most recent first. Use GetSnapshot or GetSnapshots to hydrate the full records.

GetTransitions

Returns the transitions matching the given IDs between two contract snapshots, alongside the IDs that did not resolve.