release-compare

Parameters

Response 200

{
  environment: string | null
  base: {
    version: string
    registered: boolean
    firstSessionAt: string | null
    newIssues: integer
    regressedIssues: integer
    resolvedIssues: integer
    sessions: integer
    crashFreeSessionRate: number | null
    users: integer
    crashFreeUserRate: number | null
    adoptionRate: number | null
    p95Ms: number | null
    spanCount: integer
  }
  head: {
    version: string
    registered: boolean
    firstSessionAt: string | null
    newIssues: integer
    regressedIssues: integer
    resolvedIssues: integer
    sessions: integer
    crashFreeSessionRate: number | null
    users: integer
    crashFreeUserRate: number | null
    adoptionRate: number | null
    p95Ms: number | null
    spanCount: integer
  }
  delta: {
    newIssues: integer
    regressedIssues: integer
    resolvedIssues: integer
    crashFreeSessionRate: number | null
    crashFreeUserRate: number | null
    adoptionRate: number | null
    p95Ms: number | null
    p95Fraction: number | null
  }
}

Response 400 · `bad_request` — the path, query or body failed validation. `details` carries the Zod issues, one per offending field.

{
  error: {
    code: "bad_request" | "conflict" | "forbidden" | "internal_error" | "mfa_required" | "not_found" | "payload_too_large" | "quota_exceeded" | … 6 more
    message: string
    details?: unknown
    requestId?: string
  }
}

Response 401 · `unauthorized` — no credential, or one that is expired, revoked or not valid for this resource. `mfa_required` when the credential is good but a second factor is owed.

{
  error: {
    code: "bad_request" | "conflict" | "forbidden" | "internal_error" | "mfa_required" | "not_found" | "payload_too_large" | "quota_exceeded" | … 6 more
    message: string
    details?: unknown
    requestId?: string
  }
}

Response 403 · `forbidden` — the credential is valid and its scopes or this principal’s membership do not reach this resource. Scopes are re-intersected with live memberships on every request, so this can appear for a token that worked yesterday.

{
  error: {
    code: "bad_request" | "conflict" | "forbidden" | "internal_error" | "mfa_required" | "not_found" | "payload_too_large" | "quota_exceeded" | … 6 more
    message: string
    details?: unknown
    requestId?: string
  }
}

Response 404 · `not_found` — no such resource, OR one this principal cannot see. The two are deliberately one answer: a 403 would confirm the existence of something whose identifier is guessable.

{
  error: {
    code: "bad_request" | "conflict" | "forbidden" | "internal_error" | "mfa_required" | "not_found" | "payload_too_large" | "quota_exceeded" | … 6 more
    message: string
    details?: unknown
    requestId?: string
  }
}

Response 429 · `rate_limited` or `quota_exceeded` — over a ceiling. `Retry-After` says when to come back, and `x-ratelimit-limit` / `-remaining` / `-reset` describe the bucket.

{
  error: {
    code: "bad_request" | "conflict" | "forbidden" | "internal_error" | "mfa_required" | "not_found" | "payload_too_large" | "quota_exceeded" | … 6 more
    message: string
    details?: unknown
    requestId?: string
  }
}

Response 500 · `internal_error` — an unhandled failure on this side. The message is always generic; `requestId` is the part worth quoting.

{
  error: {
    code: "bad_request" | "conflict" | "forbidden" | "internal_error" | "mfa_required" | "not_found" | "payload_too_large" | "quota_exceeded" | … 6 more
    message: string
    details?: unknown
    requestId?: string
  }
}

Request

curl https://api.bucker.io/orgs/{orgSlug}/projects/{projectSlug}/release-compare \
  -H "authorization: Bearer $BUCKER_TOKEN"