curl -X POST "https://api.tktchurch.com/v1/newsletters" \
  -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIs..." \
  -H "Content-Type: application/json" \
  -d '{
    "title": "January Church Updates",
    "content": "Welcome to our first newsletter of 2024...",
    "imageId": "file-123",
    "pdfId": "file-456",
    "status": "draft",
    "publishDate": "2024-01-01T12:00:00Z"
  }'

const createNewsletter = async (accessToken, newsletter) => {
  const response = await fetch(
    'https://api.tktchurch.com/v1/newsletters',
    {
      method: 'POST',
      headers: {
        'Authorization': `Bearer ${accessToken}`,
        'Content-Type': 'application/json'
      },
      body: JSON.stringify(newsletter)
    }
  );

  if (!response.ok) {
    const error = await response.json();
    throw new Error(error.error.reason);
  }

  return response.json();
};

// Usage
try {
  const newsletter = await createNewsletter('eyJhbGciOiJIUzI1NiIs...', {
    title: 'January Church Updates',
    content: 'Welcome to our first newsletter of 2024...',
    imageId: 'file-123',
    pdfId: 'file-456',
    status: 'draft',
    publishDate: '2024-01-01T12:00:00Z'
  });
  console.log('Created newsletter:', newsletter);
} catch (error) {
  console.error('Failed to create newsletter:', error.message);
}

struct CreateNewsletterRequest: Codable {
    let title: String
    let content: String
    let imageId: String?
    let imageUrl: String?
    let pdfId: String?
    let pdfUrl: String?
    let status: String?
    let publishDate: Date?
}

func createNewsletter(accessToken: String, newsletter: CreateNewsletterRequest) async throws -> Newsletter {
    var urlRequest = URLRequest(url: URL(string: "https://api.tktchurch.com/v1/newsletters")!)
    urlRequest.httpMethod = "POST"
    urlRequest.setValue("Bearer \(accessToken)", forHTTPHeaderField: "Authorization")
    urlRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
    
    let encoder = JSONEncoder()
    encoder.dateEncodingStrategy = .iso8601
    urlRequest.httpBody = try encoder.encode(newsletter)
    
    let (data, response) = try await URLSession.shared.data(for: urlRequest)
    guard let httpResponse = response as? HTTPURLResponse else {
        throw URLError(.badServerResponse)
    }
    
    if httpResponse.statusCode != 200 {
        let error = try JSONDecoder().decode(ErrorResponse.self, from: data)
        throw error
    }
    
    let decoder = JSONDecoder()
    decoder.dateDecodingStrategy = .iso8601
    return try decoder.decode(Newsletter.self, from: data)
}

// Usage
do {
    let request = CreateNewsletterRequest(
        title: "January Church Updates",
        content: "Welcome to our first newsletter of 2024...",
        imageId: "file-123",
        imageUrl: nil,
        pdfId: "file-456",
        pdfUrl: nil,
        status: "draft",
        publishDate: ISO8601DateFormatter().date(from: "2024-01-01T12:00:00Z")
    )
    
    let newsletter = try await createNewsletter(
        accessToken: "eyJhbGciOiJIUzI1NiIs...",
        newsletter: request
    )
    print("Created newsletter:", newsletter)
} catch {
    print("Failed to create newsletter:", error.localizedDescription)
}

data class CreateNewsletterRequest(
    val title: String,
    val content: String,
    val imageId: String? = null,
    val imageUrl: String? = null,
    val pdfId: String? = null,
    val pdfUrl: String? = null,
    val status: String? = null,
    val publishDate: String? = null
)

class NewsletterService(private val client: OkHttpClient) {
    suspend fun createNewsletter(accessToken: String, newsletter: CreateNewsletterRequest): Newsletter {
        val requestBody = newsletter.toJson()
            .toRequestBody("application/json".toMediaType())

        val request = Request.Builder()
            .url("https://api.tktchurch.com/v1/newsletters")
            .post(requestBody)
            .header("Authorization", "Bearer $accessToken")
            .build()

        client.newCall(request).execute().use { response ->
            if (!response.isSuccessful) {
                val error = response.body?.string()?.fromJson<ErrorResponse>()
                throw Exception(error?.reason ?: "Failed to create newsletter")
            }
            
            return response.body?.string()?.fromJson<Newsletter>()
                ?: throw Exception("Empty response")
        }
    }
}

// Usage
try {
    val request = CreateNewsletterRequest(
        title = "January Church Updates",
        content = "Welcome to our first newsletter of 2024...",
        imageId = "file-123",
        pdfId = "file-456",
        status = "draft",
        publishDate = "2024-01-01T12:00:00Z"
    )
    
    val newsletter = newsletterService.createNewsletter(
        "eyJhbGciOiJIUzI1NiIs...",
        request
    )
    println("Created newsletter: $newsletter")
} catch (e: Exception) {
    println("Failed to create newsletter: ${e.message}")
}

import axios from 'axios';

interface CreateNewsletterRequest {
  title: string;
  content: string;
  imageId?: string;
  imageUrl?: string;
  pdfId?: string;
  pdfUrl?: string;
  status?: 'draft' | 'scheduled' | 'published' | 'archived';
  publishDate?: string;
}

const createNewsletter = async (
  accessToken: string,
  newsletter: CreateNewsletterRequest
): Promise<Newsletter> => {
  try {
    const response = await axios.post(
      'https://api.tktchurch.com/v1/newsletters',
      newsletter,
      {
        headers: {
          'Authorization': `Bearer ${accessToken}`,
          'Content-Type': 'application/json'
        },
      }
    );
    
    return response.data;
  } catch (error) {
    if (axios.isAxiosError(error)) {
      throw new Error(error.response?.data?.error?.reason || 'Failed to create newsletter');
    }
    throw error;
  }
};

// Usage
try {
  const newsletter = await createNewsletter(
    'eyJhbGciOiJIUzI1NiIs...',
    {
      title: 'January Church Updates',
      content: 'Welcome to our first newsletter of 2024...',
      imageId: 'file-123',
      pdfId: 'file-456',
      status: 'draft',
      publishDate: '2024-01-01T12:00:00Z'
    }
  );
  console.log('Created newsletter:', newsletter);
} catch (error) {
  console.error('Failed to create newsletter:', error.message);
}

{
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "title": "January Church Updates",
  "content": "Welcome to our first newsletter of 2024...",
  "image": {
    "id": "file-123",
    "url": "https://cdn.tktchurch.com/files/newsletter-image.jpg"
  },
  "imageUrl": null,
  "pdf": {
    "id": "file-456",
    "url": "https://cdn.tktchurch.com/files/newsletter.pdf"
  },
  "pdfUrl": null,
  "hasPdf": true,
  "status": "draft",
  "publishDate": "2024-01-01T12:00:00Z",
  "recipientCount": 0,
  "createdAt": "2023-12-30T15:00:00Z",
  "updatedAt": "2023-12-30T15:00:00Z",
  "createdBy": "user-123e4567-e89b-12d3-a456-426614174000"
}

{
  "error": {
    "status": 400,
    "reason": "Title is required"
  }
}

{
  "error": {
    "status": 401,
    "reason": "Invalid or expired access token"
  }
}

{
  "error": {
    "status": 403,
    "reason": "Missing required permission: createNewsletter"
  }
}