Sample CodeReviewed 2026-07-21View on Apple Developer

Retrieve Power and Performance Metrics and Log Insights

At a glance

Item Summary
Purpose Use the App Store Connect API to collect and parse diagnostic logs and metrics for your apps.
App architecture A Python sample centered on get-diagnostics-logs, with direct use of App Store Connect API.
Main patterns No named application pattern supported by the extracted structure
Project style 3 scanned source file(s) across Python, organized around ranked entry, type, and file boundaries.

Project structure

Source bundle/
├── get-diagnostics-logs.py
├── get-metrics-insights.py
└── generate-token.py

Structure observations

  • Architecturally prominent files are ranked from entry points and role-named declarations; resource-only paths are omitted.
  • Primary languages: Python.
  • The verified tree contains 0 project/configuration file(s) and 0 source declaration(s).

Overall architecture

Reference code

get-diagnostics-logs.py:190 — architecture anchor

if __name__ == "__main__":
    if len(sys.argv) != 2:
        die(-1, "usage: python3 get-diagnostics-logs.py {buildId}")
    get_diagnostics_logs(sys.argv[1])

Interpretation

The arrows summarize the source-visible entry, role-named types or folders, and framework direction; when nodes come from structural folders, the sequence is a high-level interpretation rather than proof that every adjacent node calls the next. Ownership is claimed only where the next section cites a stored property or assignment. The diagram is intentionally limited to the dominant path into App Store Connect API.

Ownership and state

Ownership evidence

get-metrics-insights.py:1 — stored dependency or nearest verified ownership anchor

"""
See README.md for help configuring and running this script.
"""

import sys
import datetime
from urllib.parse import urlparse
Owner Object or state Relationship Mutation authority
get-diagnostics-logs App Store Connect API APIs Uses framework types; no stored lifecycle relationship was detected in the architecture anchor. The declaring implementation controls calls.

Composition arrows indicate a source-visible construction expression or locally owned value state; aggregation means the owner stores or receives a dependency without proving exclusive lifetime ownership.

Class and protocol design

generate-token.py:1 — representative type boundary

"""
Usage example:

$ python3 generate-token.py {issuer id} {key id} {private key path}
"""

import sys
Type Responsibility Depends on or conforms to
No local class/protocol declaration Procedural or file-level feature logic Language module and imported APIs

No local protocol conformance is claimed as protocol-oriented design; external framework conformances are listed only as dependencies.

Access control

Symbol Access Verified effect Likely rationale
get-diagnostics-logs (get-diagnostics-logs.py:190) language/file boundary Visibility follows the language’s file, module, and export rules rather than Swift access modifiers. Inference: the language’s file or module boundary is sufficient for this sample collaboration.

Reference code

get-diagnostics-logs.py:190 — representative boundary

if __name__ == "__main__":
    if len(sys.argv) != 2:
        die(-1, "usage: python3 get-diagnostics-logs.py {buildId}")
    get_diagnostics_logs(sys.argv[1])

Swift declarations without a modifier are internal; explicit private, fileprivate, private(set), public, or open entries above are interpreted by language semantics. Objective-C/C samples instead rely on header and implementation boundaries, which are not equivalent to Swift lexical privacy.

Logic ownership and placement

Logic Owning type or file Placement rationale
Feature and framework orchestration get-diagnostics-logs The sample keeps the demonstrated path in its primary concrete type.

Design patterns

Pattern Source evidence Purpose or tradeoff
No named application pattern get-diagnostics-logs.py:190 The verified source directly composes concrete framework types; this document avoids forcing a pattern name.

Naming conventions

  • Types: feature-specific names rather than reusable layer suffixes.
  • Protocols: no local protocol declaration in the scanned source.
  • Methods: get_diagnostics_logs, does, callstacks, preorder_traversal, make_http_request, create_token, die, red.
  • Files: feature/project roles rather than a strict one-type-per-file rule.

Architecture takeaways

  • get-diagnostics-logs is the main source-visible entry or composition anchor for this sample.
  • Framework work reaches App Store Connect API through a deliberately small high-level chain; the detailed API graph remains inside the cited implementation files.
  • Stored-property evidence identifies lifecycle collaboration; it does not by itself prove exclusive object ownership.
  • Access-control conclusions separate verified language visibility from the likely design rationale.
  • The source does not justify labeling the design protocol-oriented.

Source map

Source file Relevant symbols
get-diagnostics-logs.py Feature implementation
get-metrics-insights.py Feature implementation
generate-token.py Feature implementation