Cem Comments - Answer Overflow

import { constructRouter } from './router';

export { Views } from './views';

export default {
  async fetch(
    request: Request,
    env: Bindings,
    ctx: ExecutionContext,
  ): Promise<Response> {
    // Setup logging to datadog
    const logger = new Logger(
      new DatadogLoggerProvider({
        apiKey: env.DD_API_KEY,
        applicationKey: env.DD_APP_KEY,
        environment: env.ENVIRONMENT,
      }),
    );

    // Construct router
    const app = await constructRouter(request, env, logger, ctx);

    return app.fetch(request, env, ctx);
  },
};

import { constructRouter } from './router';

export { Views } from './views';

export default {
  async fetch(
    request: Request,
    env: Bindings,
    ctx: ExecutionContext,
  ): Promise<Response> {
    // Setup logging to datadog
    const logger = new Logger(
      new DatadogLoggerProvider({
        apiKey: env.DD_API_KEY,
        applicationKey: env.DD_APP_KEY,
        environment: env.ENVIRONMENT,
      }),
    );

    // Construct router
    const app = await constructRouter(request, env, logger, ctx);

    return app.fetch(request, env, ctx);
  },
};

14 replies

CDCloudflare Developers

•Created by Cem on 8/4/2024 in #workers-help

Enterprise customer - cannot perform I/O error

Hi @Hard@Work | R2 , it is constructed during the Hono router construction under the init() method as such:

export async function constructRouter(
  request: Request,
  env: Bindings,
  logger: Logger,
  ctx: ExecutionContext,
): Promise<Hono<{ Bindings: Bindings }>> {
  const app = new Hono<{ Bindings: Bindings }>();

  // Register logging middleware
  app.use('*', async (event, next) => {
    try {
      logger.send(ctx);
      await next();
    } catch (error: any) {
      logger.error(error);
      logger.send(ctx);
      return event.json(
        {
          message: 'Server error',
        },
        500,
      );
    }
  });
  // Register CORS middleware
  app.use('*', async (event, next) => {
    await next();
    event.res.headers.set(
      'Access-Control-Allow-Origin',
      event.req.header('origin') ?? '*',
    );
    event.res.headers.set('Access-Control-Max-Age', '86400');
    event.res.headers.set(
      'Access-Control-Allow-Methods',
      'GET, PATCH, POST, PUT, DELETE, OPTIONS, HEAD',
    );
    event.res.headers.set(
      'Access-Control-Allow-Headers',
      'origin, content-type, accept, authorization, x-requested-with, x-datadog-trace-id, x-datadog-parent-id, x-datadog-origin, x-datadog-sampling-priority, x-datadog-sampled',
    );
  });

  // Register OPTIONS handler
  app.options('*', (event) => event.text(''));

  // Register User class init middleware
  app.use('*', async (event, next) => {
    try {
      event.env.User = new User(request, env, logger) as User;
      await event.env.User.init();
      await next();
    } catch (err) {
      logger.error(err, {
        user: event.env.User.info.id,
      });
      return event.json(
        {
          errors: {
            status: 401,
            title: 'You must be authenticated to access this resource',
          },
        },
        401,
      );
    }
  });

export async function constructRouter(
  request: Request,
  env: Bindings,
  logger: Logger,
  ctx: ExecutionContext,
): Promise<Hono<{ Bindings: Bindings }>> {
  const app = new Hono<{ Bindings: Bindings }>();

  // Register logging middleware
  app.use('*', async (event, next) => {
    try {
      logger.send(ctx);
      await next();
    } catch (error: any) {
      logger.error(error);
      logger.send(ctx);
      return event.json(
        {
          message: 'Server error',
        },
        500,
      );
    }
  });
  // Register CORS middleware
  app.use('*', async (event, next) => {
    await next();
    event.res.headers.set(
      'Access-Control-Allow-Origin',
      event.req.header('origin') ?? '*',
    );
    event.res.headers.set('Access-Control-Max-Age', '86400');
    event.res.headers.set(
      'Access-Control-Allow-Methods',
      'GET, PATCH, POST, PUT, DELETE, OPTIONS, HEAD',
    );
    event.res.headers.set(
      'Access-Control-Allow-Headers',
      'origin, content-type, accept, authorization, x-requested-with, x-datadog-trace-id, x-datadog-parent-id, x-datadog-origin, x-datadog-sampling-priority, x-datadog-sampled',
    );
  });

  // Register OPTIONS handler
  app.options('*', (event) => event.text(''));

  // Register User class init middleware
  app.use('*', async (event, next) => {
    try {
      event.env.User = new User(request, env, logger) as User;
      await event.env.User.init();
      await next();
    } catch (err) {
      logger.error(err, {
        user: event.env.User.info.id,
      });
      return event.json(
        {
          errors: {
            status: 401,
            title: 'You must be authenticated to access this resource',
          },
        },
        401,
      );
    }
  });

14 replies

CDCloudflare Developers

•Created by Cem on 8/4/2024 in #workers-help

Enterprise customer - cannot perform I/O error

@Hard@Work | R2 I'm not sure if this is where the error is coming from but the stack trace seems to suggest this method from our class:

async listViews(): Promise<ViewData[]> {
    let views: ViewData[] = [];
    try {
      const viewsRaw = await this.viewer.fetch(
        constructUrl(`${this.info.id}/list`),
      );
      views = await viewsRaw.json();
    } catch (e: any) {
      this.logger.error('Failed to fetch view list', e);
      throw e;
    }
    return views;
  }

async listViews(): Promise<ViewData[]> {
    let views: ViewData[] = [];
    try {
      const viewsRaw = await this.viewer.fetch(
        constructUrl(`${this.info.id}/list`),
      );
      views = await viewsRaw.json();
    } catch (e: any) {
      this.logger.error('Failed to fetch view list', e);
      throw e;
    }
    return views;
  }

14 replies

CDCloudflare Developers

•Created by Cem on 8/4/2024 in #workers-help

Enterprise customer - cannot perform I/O error

Or what I/O operation might be throwing the error?

14 replies

CDCloudflare Developers

•Created by Cem on 8/4/2024 in #workers-help

Enterprise customer - cannot perform I/O error

To help narrow it down, would you be able to tell me if that error comes from interacting with the durable object or not?

14 replies

CDCloudflare Developers

•Created by Cem on 8/4/2024 in #workers-help

Enterprise customer - cannot perform I/O error

Hi @Hard@Work | R2 - thanks for the response. However, we're not declaring any variables at the global scope.

14 replies

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