[Fusion] Add FusionSourceSchemaArchive

[tobias-tengler]

No description provided.

[Copilot]

Pull request overview

This PR introduces a new FusionSourceSchemaArchive component that provides functionality for creating, reading, and modifying Fusion source schema archives. The archive is a ZIP-based container format that packages GraphQL schemas and source schema settings together.

Changes:

• Adds a new Fusion.SourceSchema.Packaging library with archive management capabilities
• Implements support for Create, Read, and Update modes for archives
• Provides comprehensive test coverage with 15 test cases covering various scenarios

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
HotChocolate.Fusion.SourceSchema.Packaging.csproj	New library project configuration
FusionSourceSchemaArchive.cs	Main API for archive operations with CRUD functionality
FusionSourceSchemaArchiveSession.cs	Session management for archive file operations
FusionSourceSchemaArchiveMode.cs	Enum defining Read/Create/Update modes
FusionSourceSchemaArchiveOptions.cs	Configuration options for archive size limits
FusionSourceSchemaArchiveReadOptions.cs	Internal read options with defaults
ArchiveMetadata.cs	Archive metadata model with format version
ArchiveMetadataSerializer.cs	JSON serialization for archive metadata
FileKind.cs	Enum for distinguishing file types in archive
FileNames.cs	Constants for standard file names in archive
FusionSourceSchemaArchiveTests.cs	Comprehensive test suite with 15 test cases
HotChocolate.Fusion.SourceSchema.Packaging.csproj (test)	Test project configuration
HotChocolate.Fusion-vnext.slnx	Solution file update with new projects
All.slnx	Main solution file update with new projects

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[github-actions]

🚀 Fusion Gateway Performance Results

Simple Composite Query

Constant Load (50 VUs)

Requests/sec	Error Rate
5908.97 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.78ms	7.05ms	160.35ms	8.31ms	12.67ms	18.17ms

Ramping Load (0→50→500→50 VUs)

Requests/sec	Error Rate
4668.43 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.76ms	37.09ms	264.44ms	47.56ms	107.75ms	126.14ms

Executed Query

fragment User on User {
  id
  username
  name
}

fragment Review on Review {
  id
  body
}

fragment Product on Product {
  inStock
  name
  price
  shippingEstimate
  upc
  weight
}

query TestQuery {
  topProducts(first: 5) {
    ...Product
    reviews {
      ...Review
      author {
        ...User
      }
    }
  }
}

Deep Recursion Query

Constant Load (50 VUs)

Requests/sec	Error Rate
270.15 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
12.85ms	173.02ms	572.02ms	179.50ms	225.20ms	251.51ms

Ramping Load (0→50→500→50 VUs)

Requests/sec	Error Rate
304.98 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
3.11ms	672.97ms	1698.42ms	692.79ms	1377.48ms	1467.63ms

Executed Query

fragment User on User {
  id
  username
  name
}

fragment Review on Review {
  id
  body
}

fragment Product on Product {
  inStock
  name
  price
  shippingEstimate
  upc
  weight
}

query TestQuery {
  users {
    ...User
    reviews {
      ...Review
      product {
        ...Product
        reviews {
          ...Review
          author {
            ...User
            reviews {
              ...Review
              product {
                ...Product
              }
            }
          }
        }
      }
    }
  }
  topProducts(first: 5) {
    ...Product
    reviews {
      ...Review
      author {
        ...User
        reviews {
          ...Review
          product {
            ...Product
          }
        }
      }
    }
  }
}

Variable Batching Throughput

Constant Load (50 VUs)

Requests/sec	Error Rate
24055.39 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.09ms	1.68ms	38.08ms	2.03ms	3.87ms	4.74ms

Ramping Load (0→50→500→50 VUs)

Requests/sec	Error Rate
18965.68 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.09ms	9.04ms	120.97ms	11.15ms	23.10ms	27.90ms

Executed Query

query TestQuery_8f7a46ce_2(
  $__fusion_1_upc: ID!
  $__fusion_2_price: Long!
  $__fusion_2_weight: Long!
) {
  productByUpc(upc: $__fusion_1_upc) {
    inStock
    shippingEstimate(weight: $__fusion_2_weight, price: $__fusion_2_price)
  }
}

Variables (5 sets batched in single request)

[
  { "__fusion_1_upc": "1", "__fusion_2_price": 899, "__fusion_2_weight": 100 },
  { "__fusion_1_upc": "2", "__fusion_2_price": 1299, "__fusion_2_weight": 1000 },
  { "__fusion_1_upc": "3", "__fusion_2_price": 15, "__fusion_2_weight": 20 },
  { "__fusion_1_upc": "4", "__fusion_2_price": 499, "__fusion_2_weight": 100 },
  { "__fusion_1_upc": "5", "__fusion_2_price": 1299, "__fusion_2_weight": 1000 }
]

No baseline data available for comparison.

---

Run 20897800863 • Commit 733f4f6 • Sun, 11 Jan 2026 16:07:59 GMT

[github-actions]

🚀 Fusion Gateway Performance Results

Simple Composite Query

Constant Load (50 VUs)

Requests/sec	Error Rate
5897.11 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.80ms	7.06ms	160.79ms	8.33ms	12.66ms	18.29ms

Ramping Load (0→50→500→50 VUs)

Requests/sec	Error Rate
4503.87 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.73ms	39.26ms	229.11ms	49.28ms	110.47ms	126.88ms

Executed Query

fragment User on User {
  id
  username
  name
}

fragment Review on Review {
  id
  body
}

fragment Product on Product {
  inStock
  name
  price
  shippingEstimate
  upc
  weight
}

query TestQuery {
  topProducts(first: 5) {
    ...Product
    reviews {
      ...Review
      author {
        ...User
      }
    }
  }
}

Deep Recursion Query

Constant Load (50 VUs)

Requests/sec	Error Rate
270.38 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
12.62ms	173.91ms	562.30ms	179.47ms	225.23ms	248.66ms

Ramping Load (0→50→500→50 VUs)

Requests/sec	Error Rate
305.21 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
3.12ms	676.71ms	1688.10ms	692.18ms	1383.86ms	1475.97ms

Executed Query

fragment User on User {
  id
  username
  name
}

fragment Review on Review {
  id
  body
}

fragment Product on Product {
  inStock
  name
  price
  shippingEstimate
  upc
  weight
}

query TestQuery {
  users {
    ...User
    reviews {
      ...Review
      product {
        ...Product
        reviews {
          ...Review
          author {
            ...User
            reviews {
              ...Review
              product {
                ...Product
              }
            }
          }
        }
      }
    }
  }
  topProducts(first: 5) {
    ...Product
    reviews {
      ...Review
      author {
        ...User
        reviews {
          ...Review
          product {
            ...Product
          }
        }
      }
    }
  }
}

Variable Batching Throughput

Constant Load (50 VUs)

Requests/sec	Error Rate
23926.80 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.09ms	1.68ms	46.92ms	2.04ms	3.89ms	4.76ms

Ramping Load (0→50→500→50 VUs)

Requests/sec	Error Rate
18796.91 req/s	0.00%

📊 Response Time Metrics

Min	Med	Max	Avg	P90	P95
0.09ms	9.20ms	103.51ms	11.17ms	23.14ms	27.75ms

Executed Query

query TestQuery_8f7a46ce_2(
  $__fusion_1_upc: ID!
  $__fusion_2_price: Long!
  $__fusion_2_weight: Long!
) {
  productByUpc(upc: $__fusion_1_upc) {
    inStock
    shippingEstimate(weight: $__fusion_2_weight, price: $__fusion_2_price)
  }
}

Variables (5 sets batched in single request)

[
  { "__fusion_1_upc": "1", "__fusion_2_price": 899, "__fusion_2_weight": 100 },
  { "__fusion_1_upc": "2", "__fusion_2_price": 1299, "__fusion_2_weight": 1000 },
  { "__fusion_1_upc": "3", "__fusion_2_price": 15, "__fusion_2_weight": 20 },
  { "__fusion_1_upc": "4", "__fusion_2_price": 499, "__fusion_2_weight": 100 },
  { "__fusion_1_upc": "5", "__fusion_2_price": 1299, "__fusion_2_weight": 1000 }
]

No baseline data available for comparison.

---

Run 20898094505 • Commit 7ab980f • Sun, 11 Jan 2026 16:30:22 GMT