Document Metadata Queries

Content: Document Metadata Queries

User Intent

"How do I query documents by pages, author, file type, etc.?"

Operation

• SDK Method: queryContents() with document-specific patterns

• GraphQL: queryContents query

• Entity Type: Content (type: FILE, fileType: DOCUMENT)

• Common Use Cases: Find PDFs, filter by page count, search by author, encrypted documents

Document Metadata Structure

Documents (PDFs, Word, Excel, PowerPoint) have metadata in the document field:

interface DocumentMetadata {
  title: string;
  subject: string;
  summary: string;
  author: string;
  lastModifiedBy: string;
  publisher: string;
  description: string;
  keywords: string[];
  pageCount: number;
  worksheetCount: number;          // Excel
  slideCount: number;              // PowerPoint
  wordCount: number;
  lineCount: number;
  paragraphCount: number;
  isEncrypted: boolean;
  hasDigitalSignature: boolean;
}

TypeScript (Canonical)

import { Graphlit } from 'graphlit-client';
import { ContentTypes, FileTypes, SearchTypes } from 'graphlit-client/dist/generated/graphql-types';

const graphlit = new Graphlit();

// Query all documents
const allDocs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

// Search documents
const searchDocs = await graphlit.queryContents({
  search: "quarterly report",
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

// Recent documents
const recentDocs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document],
    createdInLast: 'P30D'
  });

console.log(`Found ${recentDocs.contents.results.length} recent documents`);

// Access document metadata
recentDocs.contents.results.forEach(doc => {
  if (doc.document) {
    console.log(`${doc.name}: ${doc.document.pageCount} pages`);
    console.log(`  Author: ${doc.document.author || 'Unknown'}`);
    console.log(`  Words: ${doc.document.wordCount}`);
  }
});

Query Patterns

1. Filter by Document Type

// PDFs only
const pdfs = await graphlit.queryContents({
  
    fileExtensions: ['pdf']
  });

// Word documents
const wordDocs = await graphlit.queryContents({
  
    fileExtensions: ['docx', 'doc']
  });

// Excel spreadsheets
const excel = await graphlit.queryContents({
  
    fileExtensions: ['xlsx', 'xls']
  });

// PowerPoint presentations
const powerpoint = await graphlit.queryContents({
  
    fileExtensions: ['pptx', 'ppt']
  });

console.log(`PDFs: ${pdfs.contents.results.length}`);
console.log(`Word: ${wordDocs.contents.results.length}`);
console.log(`Excel: ${excel.contents.results.length}`);
console.log(`PowerPoint: ${powerpoint.contents.results.length}`);

2. Filter by Page Count

// Get all documents
const docs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

// Filter by page count
const shortDocs = docs.contents.results.filter(doc =>
  doc.document && doc.document.pageCount < 10
);

const mediumDocs = docs.contents.results.filter(doc =>
  doc.document && doc.document.pageCount >= 10 && doc.document.pageCount < 50
);

const longDocs = docs.contents.results.filter(doc =>
  doc.document && doc.document.pageCount >= 50
);

console.log(`Short (<10 pages): ${shortDocs.length}`);
console.log(`Medium (10-50 pages): ${mediumDocs.length}`);
console.log(`Long (50+ pages): ${longDocs.length}`);

// Find longest documents
const sorted = docs.contents.results
  .filter(doc => doc.document?.pageCount)
  .sort((a, b) => (b.document?.pageCount || 0) - (a.document?.pageCount || 0));

console.log('\nTop 5 longest documents:');
sorted.slice(0, 5).forEach(doc => {
  console.log(`  ${doc.name}: ${doc.document?.pageCount} pages`);
});

3. Filter by Author

// Search by author name
const byAuthor = await graphlit.queryContents({
  search: "Kirk Marple",
  searchType: SearchTypes.Keyword,
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

// Get all docs and filter by author
const docs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

const kirkDocs = docs.contents.results.filter(doc =>
  doc.document?.author?.toLowerCase().includes('kirk')
);

console.log(`Documents by Kirk: ${kirkDocs.length}`);

// Count documents by author
const byAuthorCount = new Map<string, number>();
docs.contents.results.forEach(doc => {
  const author = doc.document?.author || 'Unknown';
  byAuthorCount.set(author, (byAuthorCount.get(author) || 0) + 1);
});

console.log('\nTop 10 authors:');
Array.from(byAuthorCount.entries())
  .sort((a, b) => b[1] - a[1])
  .slice(0, 10)
  .forEach(([author, count]) => {
    console.log(`  ${author}: ${count} documents`);
  });

4. Filter by File Size

// Large documents (> 10MB)
const largeDocs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document],
    fileSizeRange: {
      from: 10000000  // 10MB in bytes
    }
  });

// Medium documents (1-10MB)
const mediumDocs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document],
    fileSizeRange: {
      from: 1000000,    // 1MB
      to: 10000000      // 10MB
    }
  });

// Small documents (< 1MB)
const smallDocs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document],
    fileSizeRange: {
      to: 1000000  // 1MB
    }
  });

console.log(`Large (>10MB): ${largeDocs.contents.results.length}`);
console.log(`Medium (1-10MB): ${mediumDocs.contents.results.length}`);
console.log(`Small (<1MB): ${smallDocs.contents.results.length}`);

5. Excel-Specific Queries

// Get Excel files
const excel = await graphlit.queryContents({
  
    fileExtensions: ['xlsx', 'xls']
  });

// Filter by worksheet count
const multiSheet = excel.contents.results.filter(doc =>
  doc.document && doc.document.worksheetCount > 1
);

console.log(`Excel files: ${excel.contents.results.length}`);
console.log(`Multi-sheet workbooks: ${multiSheet.length}`);

// Find largest workbooks
const sorted = excel.contents.results
  .filter(doc => doc.document?.worksheetCount)
  .sort((a, b) => (b.document?.worksheetCount || 0) - (a.document?.worksheetCount || 0));

console.log('\nLargest workbooks:');
sorted.slice(0, 5).forEach(doc => {
  console.log(`  ${doc.name}: ${doc.document?.worksheetCount} worksheets`);
});

6. PowerPoint-Specific Queries

// Get PowerPoint files
const ppt = await graphlit.queryContents({
  
    fileExtensions: ['pptx', 'ppt']
  });

// Filter by slide count
const shortDecks = ppt.contents.results.filter(doc =>
  doc.document && doc.document.slideCount < 20
);

const longDecks = ppt.contents.results.filter(doc =>
  doc.document && doc.document.slideCount >= 50
);

console.log(`PowerPoint files: ${ppt.contents.results.length}`);
console.log(`Short decks (<20 slides): ${shortDecks.length}`);
console.log(`Long decks (50+ slides): ${longDecks.length}`);

// Average slide count
const avgSlides = ppt.contents.results
  .filter(doc => doc.document?.slideCount)
  .reduce((sum, doc) => sum + (doc.document?.slideCount || 0), 0) /
  ppt.contents.results.filter(doc => doc.document?.slideCount).length;

console.log(`Average slides: ${avgSlides.toFixed(1)}`);

7. Encrypted Documents

// Get all documents
const docs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

// Filter encrypted
const encrypted = docs.contents.results.filter(doc =>
  doc.document?.isEncrypted === true
);

// Filter digitally signed
const signed = docs.contents.results.filter(doc =>
  doc.document?.hasDigitalSignature === true
);

console.log(`Encrypted documents: ${encrypted.length}`);
console.log(`Digitally signed: ${signed.length}`);

// List encrypted docs
if (encrypted.length > 0) {
  console.log('\nEncrypted documents:');
  encrypted.forEach(doc => {
    console.log(`  ${doc.name}`);
  });
}

8. Content Analysis

// Get documents
const docs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

// Word count statistics
const wordCounts = docs.contents.results
  .filter(doc => doc.document?.wordCount)
  .map(doc => doc.document?.wordCount || 0);

const avgWords = wordCounts.reduce((a, b) => a + b, 0) / wordCounts.length;
const maxWords = Math.max(...wordCounts);
const minWords = Math.min(...wordCounts);

console.log('Word count statistics:');
console.log(`  Average: ${avgWords.toFixed(0)} words`);
console.log(`  Max: ${maxWords} words`);
console.log(`  Min: ${minWords} words`);

// Find most content-rich documents
const sorted = docs.contents.results
  .filter(doc => doc.document?.wordCount)
  .sort((a, b) => (b.document?.wordCount || 0) - (a.document?.wordCount || 0));

console.log('\nMost content-rich documents:');
sorted.slice(0, 5).forEach(doc => {
  console.log(`  ${doc.name}: ${doc.document?.wordCount} words`);
});

Query documents

docs = await graphlit.queryContents( filter=ContentFilterInput( types=[ContentTypes.File], file_types=[FileTypes.Document] ) )

PDFs only

pdfs = await graphlit.queryContents( filter=ContentFilterInput( file_extensions=['pdf'] ) )

Access metadata

for doc in docs.contents.results: if doc.document: print(f"{doc.name}: {doc.document.page_count} pages") print(f" Author: {doc.document.author}") print(f" Words: {doc.document.word_count}")

**C#**:
```csharp
using Graphlit;

var client = new Graphlit();

// Query documents
var docs = await graphlit.QueryContents(new ContentFilter
{
    Filter = new ContentCriteria
    {
        Types = new[] { ContentTypes.File },
        FileTypes = new[] { FileDocument }
    }
});

// PDFs only
var pdfs = await graphlit.QueryContents(new ContentFilter
{
    Filter = new ContentCriteria
    {
        FileExtensions = new[] { "pdf" }
    }
});

// Access metadata
foreach (var doc in docs.Contents.Results)
{
    if (doc.Document != null)
    {
        Console.WriteLine($"{doc.Name}: {doc.Document.PageCount} pages");
        Console.WriteLine($"  Author: {doc.Document.Author}");
        Console.WriteLine($"  Words: {doc.Document.WordCount}");
    }
}

Developer Hints

Page Count is Automatic

// Page count automatically detected for:
// - PDF files
// - Word documents
// - PowerPoint (slideCount instead)
// - Excel (worksheetCount instead)

if (doc.document?.pageCount) {
  console.log(`${doc.document.pageCount} pages`);
}

Excel vs Word vs PowerPoint

// Excel: worksheetCount
if (doc.document?.worksheetCount) {
  console.log(`Excel: ${doc.document.worksheetCount} worksheets`);
}

// PowerPoint: slideCount
if (doc.document?.slideCount) {
  console.log(`PowerPoint: ${doc.document.slideCount} slides`);
}

// Word/PDF: pageCount
if (doc.document?.pageCount) {
  console.log(`Document: ${doc.document.pageCount} pages`);
}

Author from Document Properties

// Author comes from document properties
// Set in Word/PDF metadata
// May be null if not set

const author = doc.document?.author || 'Unknown';

Common Issues & Solutions

Issue: Need to filter by exact page count Solution: Query all, filter client-side

const docs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

const exactly10Pages = docs.contents.results.filter(
  d => d.document?.pageCount === 10
);

Issue: Want PDFs only Solution: Use fileExtensions filter

const pdfs = await graphlit.queryContents({
  
    fileExtensions: ['pdf']
  });

Issue: Need to count documents by file extension Solution: Query and aggregate

const docs = await graphlit.queryContents({
  
    types: [ContentTypes.File],
    fileTypes: [FileTypes.Document]
  });

const byExtension = new Map<string, number>();
docs.contents.results.forEach(doc => {
  const ext = doc.fileExtension || 'unknown';
  byExtension.set(ext, (byExtension.get(ext) || 0) + 1);
});

Production Example

async function analyzeDocumentLibrary() {
  console.log('\n=== DOCUMENT LIBRARY ANALYSIS ===\n');
  
  // Get all documents
  const docs = await graphlit.queryContents({
    
      types: [ContentTypes.File],
      fileTypes: [FileTypes.Document]
    
    limit: 1000
  });
  
  console.log(`Total documents: ${docs.contents.results.length}`);
  
  // By file type
  const byType = new Map<string, number>();
  docs.contents.results.forEach(doc => {
    const ext = doc.fileExtension || 'unknown';
    byType.set(ext, (byType.get(ext) || 0) + 1);
  });
  
  console.log('\nDocument types:');
  Array.from(byType.entries())
    .sort((a, b) => b[1] - a[1])
    .forEach(([ext, count]) => {
      console.log(`  .${ext}: ${count}`);
    });
  
  // Page statistics
  const withPages = docs.contents.results.filter(d => d.document?.pageCount);
  const totalPages = withPages.reduce((sum, d) => sum + (d.document?.pageCount || 0), 0);
  const avgPages = totalPages / withPages.length;
  
  console.log(`\nPage statistics:`);
  console.log(`  Documents with pages: ${withPages.length}`);
  console.log(`  Total pages: ${totalPages.toLocaleString()}`);
  console.log(`  Average pages: ${avgPages.toFixed(1)}`);
  
  // Size statistics
  const totalSize = docs.contents.results.reduce((sum, d) => sum + (d.fileSize || 0), 0);
  const avgSize = totalSize / docs.contents.results.length;
  
  console.log(`\nSize statistics:`);
  console.log(`  Total size: ${(totalSize / 1024 / 1024).toFixed(2)} MB`);
  console.log(`  Average size: ${(avgSize / 1024 / 1024).toFixed(2)} MB`);
  
  // Security
  const encrypted = docs.contents.results.filter(d => d.document?.isEncrypted);
  const signed = docs.contents.results.filter(d => d.document?.hasDigitalSignature);
  
  console.log(`\nSecurity:`);
  console.log(`  Encrypted: ${encrypted.length}`);
  console.log(`  Digitally signed: ${signed.length}`);
  
  // Top authors
  const authors = new Map<string, number>();
  docs.contents.results.forEach(doc => {
    const author = doc.document?.author || 'Unknown';
    authors.set(author, (authors.get(author) || 0) + 1);
  });
  
  console.log(`\nTop 10 authors:`);
  Array.from(authors.entries())
    .sort((a, b) => b[1] - a[1])
    .slice(0, 10)
    .forEach(([author, count]) => {
      console.log(`  ${author}: ${count} documents`);
    });
  
  // Recent activity
  const last30Days = docs.contents.results.filter(doc => {
    const age = Date.now() - new Date(doc.creationDate).getTime();
    return age < 30 * 24 * 60 * 60 * 1000;
  });
  
  console.log(`\nRecent activity (last 30 days): ${last30Days.length} documents`);
}

await analyzeDocumentLibrary();