[PLA-136] Add idempotencyKey to ClaimBeam Mutation

[enjinabner]

Type

enhancement

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Description

• Adds support for idempotency key in beam claims to prevent duplicate claims.
• Introduces a new column idempotency_key in the beam_claims table.
• Updates ClaimBeamMutation to handle idempotency key, including checks for existing claims with the same key.
• Adds idempotencyKey field to BeamClaimType and includes it in relevant GraphQL queries.
• Modifies BeamService and related jobs to support idempotency key during beam claim processing.
• Includes tests to verify the functionality of claiming beams with an idempotency key.

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Changes walkthrough

	Relevant files
Enhancement	8 files 2024_02_26_013401_add_idempotency_key_to_beam_claims_table.php Add Idempotency Key Column to Beam Claims Table                    database/migrations/2024_02_26_013401_add_idempotency_key_to_beam_claims_table.php Adds a new migration to include idempotency_key column in beam_claims table. Ensures idempotency_key is nullable and unique. +27/-0    ClaimBeamMutation.php Integrate Idempotency Key in ClaimBeamMutation                      src/GraphQL/Mutations/ClaimBeamMutation.php Integrates idempotency key handling in the ClaimBeamMutation. Adds idempotency key to the mutation arguments and checks for existing claims with the same key. +12/-1    BeamClaimType.php Add Idempotency Key Field to BeamClaimType                              src/GraphQL/Types/BeamClaimType.php Adds idempotencyKey field to the BeamClaimType. +5/-0      ClaimBeam.php Include Idempotency Key in Beam Claim Attributes                  src/Jobs/ClaimBeam.php Includes idempotency_key in the attributes built for a beam claim. +7/-1      BeamClaim.php Add Idempotency Key to BeamClaim Model Fillable Attributes src/Models/Laravel/BeamClaim.php Adds idempotency_key to the fillable attributes of BeamClaim model. +1/-0      BeamService.php Support Idempotency Key in BeamService Claim Method            src/Services/BeamService.php Modifies claim method to accept an optional idempotencyKey. Adjusts buildClaimBeamData to include idempotencyKey in the claim data. +16/-8    GetClaims.graphql Add Idempotency Key to GetClaims Query                                      tests/Feature/GraphQL/Resources/GetClaims.graphql Adds idempotencyKey to the GetClaims GraphQL query. +1/-0      GetPendingClaims.graphql Add Idempotency Key to GetPendingClaims Query                        tests/Feature/GraphQL/Resources/GetPendingClaims.graphql Adds idempotencyKey to the GetPendingClaims GraphQL query. +1/-0
Configuration changes	1 files BeamServiceProvider.php Register New Migration for Idempotency Key                              src/BeamServiceProvider.php Registers the new migration add_idempotency_key_to_beam_claims_table with the service provider. +1/-0
Tests	1 files ClaimBeamTest.php Test Beam Claim with Idempotency Key                                          tests/Feature/GraphQL/Mutations/ClaimBeamTest.php Adds a test to verify beam claim with idempotency key. +23/-0

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[github-actions]

PR Description updated to latest commit (5a941ec)

[github-actions]

PR Review

PR feedback
⏱️ Estimated effort to review [1-5]	4, because the PR involves changes across multiple layers including database migrations, service logic, GraphQL mutations, and tests. Understanding the impact and ensuring the idempotency logic is correctly implemented requires a thorough review.
🧪 Relevant tests	Yes
🔍 Possible issues	The use of a nullable and unique idempotency_key in the database migration might lead to issues if null values are inserted multiple times, as null is considered a unique value. Returning true directly in the ClaimBeamMutation when an idempotency key is found might not be the best approach. It could be more informative to return a specific message or status indicating the operation was skipped due to idempotency. The automatic generation of an idempotency_key in BeamService.php if not provided could lead to unexpected behavior. It's generally expected that the client provides this key to ensure idempotency.
🔒 Security concerns	No

Code feedback:

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relevant file	database/migrations/2024_02_26_013401_add_idempotency_key_to_beam_claims_table.php
suggestion	Consider adding a default value or handling for multiple null inserts for the idempotency_key column to avoid unique constraint violations. [important]
relevant line	$table->string('idempotency_key', 255)->nullable()->unique();

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relevant file	src/GraphQL/Mutations/ClaimBeamMutation.php
suggestion	Instead of returning true when an idempotency key exists, return a more descriptive result or status. This improves API usability by clearly indicating the operation's outcome. [important]
relevant line	return true;

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relevant file	src/Services/BeamService.php
suggestion	Ensure the idempotency key is always provided by the client and not generated within the service. This aligns with the idempotency pattern where the client should supply the key. [important]
relevant line	'idempotency_key' => $idempotencyKey ?: Str::uuid()->toString(),

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relevant file	tests/Feature/GraphQL/Mutations/ClaimBeamTest.php
suggestion	Add tests to cover scenarios where the idempotency key is not provided, and when duplicate keys are provided, to ensure the system behaves as expected. [medium]
relevant line	public function test_it_can_claim_beam_job_with_idempotency_key(): void

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[github-actions]

PR Code Suggestions

	Suggestions
performance	Add an index to the idempotency_key column to improve query performance. Consider adding an index to the idempotency_key column in the beam_claims table to improve query performance, especially if you expect a high volume of queries based on this column. database/migrations/2024_02_26_013401_add_idempotency_key_to_beam_claims_table.php [14] -$table->string('idempotency_key', 255)->nullable()->unique(); +$table->string('idempotency_key', 255)->nullable()->unique()->index();
enhancement	Use row locking for idempotency checks to prevent race conditions.            To ensure the idempotency check is more robust, consider locking the row for the duration of the transaction when checking if an idempotency_key already exists. This can prevent race conditions where two requests with the same key are processed simultaneously. src/GraphQL/Mutations/ClaimBeamMutation.php [90-91] -if ($idempotencyKey && BeamClaim::where('idempotency_key', $idempotencyKey)->exists()) { +if ($idempotencyKey && BeamClaim::where('idempotency_key', $idempotencyKey)->lockForUpdate()->exists()) { return true; } Improve feedback for duplicate requests with a custom response or exception.  Instead of directly returning true when an idempotency key is found, consider returning a more informative response or throwing a custom exception. This can improve the API's usability by providing clearer feedback on why a request was considered a duplicate. src/GraphQL/Mutations/ClaimBeamMutation.php [90-91] if ($idempotencyKey && BeamClaim::where('idempotency_key', $idempotencyKey)->exists()) { - return true; + throw new DuplicateRequestException('This request has already been processed.'); }
best practice	Log auto-generated idempotency keys for better transparency and debugging.    When generating a new UUID for the idempotency_key if none is provided, consider logging or otherwise tracking this auto-generation. This can aid in debugging and ensure transparency in how idempotency keys are assigned. src/Services/BeamService.php [460] -'idempotency_key' => $idempotencyKey ?: Str::uuid()->toString(), +'idempotency_key' => $idempotencyKey ?: Log::info('Auto-generating idempotency key', ['key' => $key = Str::uuid()->toString()]) ?? $key, Add validation for the idempotency_key field to ensure data integrity. Ensure that the idempotency_key field is properly validated, especially since it's being used to prevent duplicate processing. Consider adding validation rules, such as a maximum length constraint, to match the database schema and prevent potential issues. src/Models/Laravel/BeamClaim.php [64] -'idempotency_key', +// Assuming you have a form request or similar validation mechanism +'idempotency_key' => 'nullable|string|max:255|unique:beam_claims,idempotency_key',

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