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parity(postgrest): add automatic retries for transient errors [from supabase-js]

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@Tr00d is already working on this.

Since Jul 1, 2026.

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Description

parity

[!WARNING]
Auto-generated by AI — This issue was automatically created by an AI-based SDK parity analysis tool. It may not be applicable to this SDK or may already be implemented in a different form. Please use your best judgment before accepting or closing this issue.

SDK Parity: C# implementation needed

A change was made in supabase-js that needs to be implemented in this repository for SDK parity.

Reference Implementation (supabase-js)

What Changed

Idempotent requests (GET, HEAD, OPTIONS) that fail with network errors or HTTP 503/520 are automatically retried with exponential backoff. Default: 3 retries at 1s, 2s, 4s. A retry option disables retries per-query. A x-retry-count header is sent on retried requests.

Code Reference
const DEFAULT_MAX_RETRIES = 3
const RETRYABLE_STATUS_CODES = [503, 520]
const RETRYABLE_METHODS = ['GET', 'HEAD', 'OPTIONS']
const getRetryDelay = (attempt: number) => Math.min(1000 * 2 ** attempt, 30000)
// delays: 1s, 2s, 4s, ... up to 30s

Implementation Guidance

Expected API Surface (C#)
// Retries enabled by default for GET requests on 503/520
var result = await client.From<Message>().Get();

// Disable retries for a specific query
var result = await client.From<Message>().WithRetry(false).Get();
Key Behaviors to Match
  • Only retry GET/HEAD (idempotent methods)
  • Only retry on network errors and HTTP 503, 520
  • Exponential backoff: 1s, 2s, 4s delays (max 30s)
  • Default max 3 retries
  • Option to disable per-query (WithRetry(false) or similar)
  • Send x-retry-count: N header on retried requests
Files Likely Affected
  • Postgrest/Client.cs or Postgrest/Table.cs - add retry to HTTP request logic
  • Postgrest/QueryOptions.cs - add retry option

Acceptance Criteria

  • GET requests auto-retry on 503/520 with exponential backoff
  • Non-GET methods (POST, PATCH, DELETE) do NOT retry
  • Per-query option to disable retries
  • x-retry-count header sent on retried requests
  • Max 3 retries by default
  • Unit tests: retry behavior, non-retry methods, disable option

Context

  • supabase-js version: v2.101.0
  • Parity tracking: This issue was auto-generated by SDK parity analysis

Generated with Claude Code /sync-sdk-parity

Dominant language
C#
Stars
702
Forks
106
Avg merge
2d 21h
Merged PRs (30d)
51

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