README

Typed ESI schema for PHP. Every EVE Online ESI endpoint has its own generated class with typed pre-call metadata and a typed call method — no magic strings, no array guesswork.

Generated from the ESI OpenAPI spec (compatibility_date=2026-05-19). Zero runtime dependencies.

Installation

composer require seatplus/esi-schema

Requirements: PHP 8.3+

Quick Start

Two call styles are available. Choose based on context.

Option A — Direct static call (recommended for jobs and services)

Each ESI endpoint has its own generated class under src/Resources/{Tag}/:

use Seatplus\EsiSchema\Resources\Assets\GetCharactersCharacterIdAssets;
use Seatplus\EsiSchema\Resources\Market\GetMarketsPrices;

// 1. Pre-call introspection — no transport needed
$meta = GetCharactersCharacterIdAssets::meta();
$meta->requiredScope;        // 'esi-assets.read_assets.v1'
$meta->rateLimitGroup;       // 'char-asset'
$meta->rateLimitMaxTokens;   // 1800
$meta->rateLimitWindow;      // '15m'
$meta->cacheAge;             // 3600
$meta->requiredRoles;        // []  (['Director'] for corp endpoints)
$meta->usesCursor;           // false

// Or access constants directly — no allocation at all
GetCharactersCharacterIdAssets::REQUIRED_SCOPE;        // 'esi-assets.read_assets.v1'
GetCharactersCharacterIdAssets::RATE_LIMIT_GROUP;      // 'char-asset'
GetCharactersCharacterIdAssets::RATE_LIMIT_MAX_TOKENS; // 1800
GetCharactersCharacterIdAssets::CACHE_AGE;             // 3600

// Check a token before dispatching a job
if ($meta->requiredScope !== null && !in_array($meta->requiredScope, $token->scopes, true)) {
    throw new InsufficientScopeException($meta->requiredScope);
}

// 2. Typed call — inject any EsiTransportInterface
$result = GetCharactersCharacterIdAssets::execute($transport, characterId: 12345, page: 1);
foreach ($result->data as $item) {
    echo $item->type_id;    // typed int
    echo $item->quantity;   // typed int
}
echo $result->pages;        // total pages from X-Pages header
echo $result->isCachedLoad; // true when served from RFC 7234 cache

// Public endpoint — REQUIRED_SCOPE is null
$prices = GetMarketsPrices::execute($transport);
GetMarketsPrices::REQUIRED_SCOPE; // null

Option B — Fluent API (convenient for interactive use and esi-client)

A generated {Tag}Resource wrapper class exists for every tag. Inject the transport once and call methods fluently:

use Seatplus\EsiSchema\Resources\AssetsResource;
use Seatplus\EsiSchema\Resources\CharacterResource;

// Construct with any EsiTransportInterface
$assets     = new AssetsResource($transport);
$characters = new CharacterResource($transport);

// Same parameters, same return types as the static API
$result = $assets->getCharactersCharacterIdAssets(characterId: 12345, page: 1);
$dto    = $characters->getCharactersCharacterId(characterId: 12345);

// With esi-client (EsiClient implements EsiTransportInterface):
$result = $esiClient->withToken($accessToken)->assets()->getCharactersCharacterIdAssets(12345, page: 1);

Each {Tag}Resource method is a thin wrapper — it simply calls {OperationClass}::execute($this->transport, ...). Pre-call metadata and typed constants remain on the per-route class.

Namespace table

Resource classes are grouped by ESI tag into 33 subfolders, each with a corresponding tag-group wrapper:

Per-route classes: Seatplus\EsiSchema\Resources\{Tag}\{PascalCaseOperationId}
Tag wrappers: Seatplus\EsiSchema\Resources\{Tag}Resource (e.g. Seatplus\EsiSchema\Resources\AssetsResource)

eveapi integration pattern

The intended use in queue jobs:

use Seatplus\EsiSchema\Resources\Assets\GetCharactersCharacterIdAssets;

class CharacterAssetJob extends EsiJob
{
    public function __construct(
        public readonly int $characterId,
        public readonly RefreshToken $token,
    ) {}

    // EsiJob base reads this to get scope, rate-limit group, etc.
    protected const string OPERATION = GetCharactersCharacterIdAssets::class;

    protected function executeJob(EsiTransportInterface $transport): void
    {
        $result = GetCharactersCharacterIdAssets::execute(
            $transport, $this->characterId
        );
        if ($result->isCachedLoad) return;
        Asset::upsert(/* ... */);
    }
}

Implementing a Transport

All resource classes depend only on EsiTransportInterface. Implement it to connect any HTTP client:

use Seatplus\EsiSchema\Contracts\EsiTransportInterface;
use Seatplus\EsiSchema\Contracts\EsiRawResponse;

class MyTransport implements EsiTransportInterface
{
    public function invoke(
        string $method,
        string $path,
        array $pathValues = [],
        array $queryParams = [],
        array $requestBody = [],
    ): EsiRawResponse {
        // ... perform the HTTP request, handle caching, auth etc.
        return new EsiRawResponse(
            data: $responseBody,          // decoded JSON (mixed)
            isCachedLoad: $wasCached,     // bool
            pages: $xPagesHeader ?? 1,    // int
            rateLimitRemaining: $remaining,
            rateLimitUsed: $used,
            retryAfter: $retryAfter,      // null unless 429
        );
    }
}

The reference implementation is seatplus/esi-client, which handles OAuth, RFC 7234 caching, error-limit tracking, and retry logic.

Architecture

EsiTransportInterface              # Contract: any transport implements this
       │
       ├── Resources/{Tag}Resource  # 33 generated tag wrappers — fluent API entry points
       │    └── AssetsResource
       │         ├── __construct(EsiTransportInterface $transport)
       │         └── getCharactersCharacterIdAssets($id, $page)  # delegates to ↓
       │
       └── Resources/{Tag}/         # 208 generated classes — one per ESI endpoint
            └── Assets/
                 └── GetCharactersCharacterIdAssets
                      ├── REQUIRED_SCOPE = 'esi-assets.read_assets.v1'  (typed const)
                      ├── RATE_LIMIT_GROUP = 'char-asset'                (typed const)
                      ├── CACHE_AGE = 3600                               (typed const)
                      ├── static meta(): OperationMeta   # pre-call typed metadata DTO
                      └── static execute($transport, ...): EsiResult     # typed call

Key contracts:

Design Decisions

1. Static resource classes — one class per ESI endpoint

Each ESI endpoint is represented as a pure static class (final class) rather than an instance method on a tag-grouped resource. This means:

• Zero allocation: GetCharactersCharacterIdAssets::meta() is a direct static call — no new, no DI.
• PHPStan traces the return type directly: ::execute() returns EsiResult<GetCharactersCharacterIdAssetsItem>, fully known at static analysis time.
• The class name is the identifier: OPERATION = GetCharactersCharacterIdAssets::class is a typed constant reference — no magic strings needed in jobs.

2. Typed public constants for metadata

Each generated class exposes 7 individually typed public const declarations:

public const ?string REQUIRED_SCOPE        = 'esi-assets.read_assets.v1';
public const ?string RATE_LIMIT_GROUP      = 'char-asset';
public const ?int    RATE_LIMIT_MAX_TOKENS = 1800;
public const ?string RATE_LIMIT_WINDOW     = '15m';
public const ?int    CACHE_AGE             = 3600;
public const array   REQUIRED_ROLES        = [];
public const bool    USES_CURSOR           = false;

meta() simply wraps these into new OperationMeta(...). The constants are also directly accessible without any method call or allocation.

3. OperationMeta as a pure typed DTO

OperationMeta is a final readonly class with only typed constructor properties — no methods. Access its values as $meta->requiredScope, $meta->cacheAge, etc.

Token validation logic is not in this library — tokenSatisfies() was removed. Scope checks belong in eveapi, where the token models live.

4. Tag-based subfolders

The 208 resource classes live in src/Resources/{Tag}/ (33 subfolders), matching ESI's tag taxonomy:

• Group imports are idiomatic: use Seatplus\EsiSchema\Resources\Assets\{GetCharactersCharacterIdAssets, GetCorporationsCorporationIdAssets}.
• Tag names with spaces become PascalCase: Faction Warfare → FactionWarfare.

5. Zero runtime dependencies

composer.json has no require entries (only require-dev for symfony/yaml used by the generator). The published library is pure PHP 8.3.

6. EsiTransportInterface as the sole injection boundary

All network I/O is delegated to a single invoke() method. The library knows nothing about Guzzle, cURL, OAuth tokens, or HTTP caching. Tests mock this interface — no network required.

7. Versioning tied to ESI compatibility_date

When CCP introduces a new breaking compatibility date, the action regenerates on a new N.x branch, opens a [REVIEW ONLY] PR to main, and after merging both main and N.x point to the same commit.

Versioning

Regenerating

php bin/generate.php    # fetches latest spec, regenerates all DTOs + Resources
vendor/bin/pint         # auto-format generated output (run after generate if needed)

The generator reads the live OAS3 spec from https://esi.evetech.net/meta/openapi.yaml?compatibility_date=2026-05-19.

It emits:

• src/Responses/*.php — ~218 typed DTO classes (one per ESI schema object)
• src/Resources/{Tag}/*.php — 208 per-route static classes grouped by ESI tag (33 subfolders)
• src/Resources/{Tag}Resource.php — 33 flat tag-group wrapper classes for the fluent API

Do not manually edit generated files. Changes are overwritten on next regeneration. To change generated output, edit bin/generate.php.

Testing

composer test               # lint + types + type-coverage + unit
composer test:unit          # Pest tests only
composer test:types         # PHPStan static analysis
composer test:type-coverage # 100% type coverage check
composer lint               # Pint auto-format (modifies files)

Contributing

See ARCHITECTURE.md for detailed design rationale.