Software Engineering

A thread pool is a collection of pre-initialized threads that can be used to execute tasks. Instead of starting a new thread for each task (which can be resource-intensive), a thread from this pool is reused to perform the task. This approach is beneficial for handling multiple operations in parallel, especially when these operations are blocking... See more

Problem : Tight coupling leads to fragility - a change in one microservice breaks connected services.

Low cohesion results in unclear responsibilities.

• Solution : Apply loose coupling and high cohesion. In a loosely coupled system, each component is independent and changes in one will not affect the others. High cohesion means that each component

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Shipping to production

Before shipping to production, we think about all the different artifacts that might be affected by a new feature.

Here's a non-exhaustive list of things we ask ourselves:

• Does the API need to be updated?


• Is the OpenAPI spec up to date now?


• Have we released all the official SDKs?


• Do we need to write a Changelog post to announce

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Netflix created a scoring system from 0 to 100 that assigns a priority to a request, with 0 being the highest priority and 100 being the lowest priority.

The score was based on 4 dimensions

Functionality - What functionality gets impacted if this request gets throttled? Is it important to the user experience? For example, if logging-related requests... See more

Using feature flags

It's always a good idea to put new features behind a feature flag.

This contributes to a rollout strategy that can surface user feedback in a much more contained and safe environment.

When thinking about how to rollout a new feature to users, first think about your peers. Many of the Resend team members also use Resend on their... See more

• Tornado is a Python web framework and asynchronous networking library designed for handling long-lived network connections. It is built to be non-blocking and uses an event loop to manage all operations. While Tornado itself does not rely on a thread pool for its core operations, it provides interfaces for integrating with thread pools (e.g.,

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Use nested objects for future extensibility

A follow on from the previous tip: try to logically group fields together. The following:

customer.address = {

line1: "Main Street 123",

city: "San Francisco",

postal_code: "12345"

};

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is much cleaner than:

customer.address_line1 = "Main street 123";

customer.address_city... See more

• Terraform Providers: Terraform is primarily used for defining the infrastructure resources. Its strength lies in its vast collection of providers that offer standardized ways to interact with various cloud services (AWS, Azure, GCP, etc.) and on-premises infrastructure. These providers are essentially plugins that understand the specific APIs and

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• Solution : Apply the Single Responsibility Principle - each microservice should focus on one single capability that it masters.


• Benefits : This specialization makes microservices easier to comprehend, test, scale, and upgrade. It's like having a coordinated team where each member excels at their role.


• Pitfalls : Violating this principle leads to

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