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Cheat sheets
ASP.NET Core cheat sheets
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Payment Gateway Integration in .NET vs Node.js: India and International
Payment gateways are services that connect your application to the banking networks.
ASP.NET Core
- ArticleFull Access
Learning GraphQL on .NET 10 with Hot Chocolate and RavenDB
This report is grounded primarily in the official documentation from Microsoft.
ASP.NET Core
- PDFFree
ASP.NET Core Validation and Problem Details Companion
Build an order response boundary with manual validation, safe Problem Details and explicit state transitions. Complete C# programs and a linked harness execute real ASP.NET Core result objects while clearly separating response checks from untested hosting and routing.
17 pages · 97 KB · ASP.NET Core
- PDFFree
C# Authorization, Configuration and Safe Delivery Companion
Exercise resource authorization, startup validation and separate health groups with complete C# programs and synthetic fixtures. Worked rollout and retry cases explain compatibility, recovery choices and the limits of local framework checks.
17 pages · 97 KB · ASP.NET Core
- ArticleFree
How an ASP.NET Core Request Actually Flows
Middleware order can explain unexpected 401 responses. A diagrammed walk through the pipeline, short-circuiting, and three ordering bugs worth recognising.
ASP.NET Core
- NoteFree
ASP.NET Core API Resilience: Timeouts, Retries, and Circuit Breakers
A production-focused guide to timeout budgets, safe retries, circuit breakers, cancellation, observability, and common .NET interview traps.
ASP.NET Core
- ArticleFree
Designing Timeout Budgets for .NET APIs: A Practical Worksheet
A production-focused method for dividing end-to-end API deadlines across application work, dependencies, retries, cancellation, cleanup, and safe degradation.
ASP.NET Core
- ArticleFree
Production-Safe HMAC Authentication and Verification in C#
Learn how to authenticate message integrity with HMAC-SHA-256 in C#, manage server-side keys, avoid canonicalization errors, rotate keys, and verify tags without timing-sensitive comparisons.
ASP.NET Core
- ArticleFree
Idempotency Keys for Reliable HTTP APIs: Semantics, Storage, and Failure Recovery
A rigorous guide to designing idempotency keys for HTTP APIs, including request fingerprints, replay semantics, storage guarantees, TTL, retries, multi-region trade-offs, and recovery from partial failures.
ASP.NET Core
- PDFFree
OAuth, OIDC, JWT and Cookie Security: A .NET Interview Decision Sheet
A nine-page ASP.NET Core security decision guide covering client and flow selection, JWT validation, cookie and browser threats, resource authorization, rotation and ten interview prompts.
9 pages · 99 KB · ASP.NET Core