verses-by_juz_number

Instructions

Implementation Reference

• src/handlers/verses.ts:120-169 (handler)

  Main handler function that parses arguments with Zod schema, invokes the verses service, logs the operation, and returns formatted MCP content or error response.

  /**
   * Handler for the verses-by_juz_number tool
   */
  export async function handleVersesByJuzNumber(args: any) {
    try {
      // Validate arguments
      const validatedArgs = versesByJuzNumberSchema.parse(args);
      
      // Call the service
      const result = await versesService.versesByJuzNumber(validatedArgs);
      
      // Log the response in verbose mode
      verboseLog('response', {
        tool: 'verses-by_juz_number',
        result
      });
      
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(result, null, 2)
          }
        ]
      };
    } catch (error) {
      verboseLog('error', {
        tool: 'verses-by_juz_number',
        error: error instanceof Error ? error.message : String(error)
      });
      
      if (error instanceof z.ZodError) {
        return {
          content: [{ 
            type: "text", 
            text: `Validation error: ${error.errors.map(e => `${e.path.join('.')}: ${e.message}`).join(', ')}`
          }],
          isError: true,
        };
      }
      
      return {
        content: [{ 
          type: "text", 
          text: `Error: ${error instanceof Error ? error.message : "Unknown error"}`
        }],
        isError: true,
      };
    }
  }

• src/schemas/verses.ts:44-51 (schema)

  Zod input schema defining parameters for the tool: juz_number (required), optional common verse params (language, words, etc.) and pagination.

  /**
   * Schema for verses-by_juz_number
   */
  export const versesByJuzNumberSchema = z.object({
    juz_number: z.string().describe("Juz number (1-30)"),
    ...commonVerseParams,
    ...paginationParams,
  });

• src/server.ts:152-155 (registration)

  MCP tool registration in listTools handler: defines name, description, and converts Zod schema to JSON schema for input validation.

    name: ApiTools.verses_by_juz_number,
    description: "Get verses by Juz number",
    inputSchema: zodToJsonSchema(versesSchemas.versesByJuzNumber),
  },

• src/server.ts:269-270 (registration)

  Dispatch registration in CallToolRequestSchema handler: maps tool name to the specific handler function call.

  case ApiTools.verses_by_juz_number:
    return await handleVersesByJuzNumber(request.params.arguments);

• src/services/verses-service.ts:139-178 (helper)

  Core service logic: validates params, builds Quran.com API URL (/verses/by_juz/{juz_number}), makes request with optional params, wraps response in success object.

  async versesByJuzNumber(params: z.infer<typeof versesByJuzNumberSchema>): Promise<VersesByJuzNumberResponse> {
    try {
      // Validate parameters
      const validatedParams = versesByJuzNumberSchema.parse(params);
      
      const url = `${API_BASE_URL}/verses/by_juz/${validatedParams.juz_number}`;
      
      // Make request to Quran.com API
      const data = await makeApiRequest(url, {
        language: validatedParams.language,
        words: validatedParams.words,
        translations: validatedParams.translations,
        audio: validatedParams.audio,
        tafsirs: validatedParams.tafsirs,
        word_fields: validatedParams.word_fields,
        translation_fields: validatedParams.translation_fields,
        fields: validatedParams.fields,
        page: validatedParams.page,
        per_page: validatedParams.per_page
      });
      
      return {
        success: true,
        message: "verses-by_juz_number executed successfully",
        data
      };
    } catch (error) {
      verboseLog('error', {
        method: 'versesByJuzNumber',
        error: error instanceof Error ? error.message : String(error)
      });
      
      if (error instanceof z.ZodError) {
        throw new ApiError(`Validation error: ${error.errors.map(e => `${e.path.join('.')}: ${e.message}`).join(', ')}`, 400);
      }
      
      // Re-throw other errors
      throw error;
    }
  }