You want to see line 3842 of file called my_super_long_file.py and you can only access that file using vim. You open the file and to your dismay, by default, vim doesn't display line numbers. Here are your options: Arrow down and hope you find that line before retirementDisplay the line numbers by hitting : and … Continue reading Go to line number in a file using vim
TIL: docker commit
When I need to create a new custom Docker image, I usually start with a base image (alpine, debian, python, etc, depending on the project), running it in the interactive mode and install the tools and dependencies I will need. Once I get my container the way I want, I create a Dockerfile with all … Continue reading TIL: docker commit
TIL: How to move a line in Vim
For a text like the following: This is the line I want to move. This line should be the first line. In order to move the first line down, in normal mode* (not edit or insert mode), follow these steps: place the cursor at the beginning of the line you want to move - in … Continue reading TIL: How to move a line in Vim
TIL: Create and deploy a serverless function in AWS
Only two steps required (it assumes an existing account in AWS console): Create a Lambda function in AWSDeploy your Lambda function with AWS API Gateway I used these two articles as a reference: Going Serverless: how to run your first AWS Lambda function in the cloudWorking with Amazon API Gateway Important notes the lambda function … Continue reading TIL: Create and deploy a serverless function in AWS
Remove a commit from history in Git – local and remote
I recently committed an API key to a repository and even worse, I pushed to GitHub before I realized my mistake... 😦 Removing the key from the code base wouldn't completely solve my problem since a commit diff would still display my secret key. The solution was to remove that commit from history. Removing commit … Continue reading Remove a commit from history in Git – local and remote
Getting started with gRPC – part II: the code
In a previous post I wrote a summary of the things I learned about gRPC. Here I will talk about the prototype app I wrote to test gRPC and gRPC-Web. About my prototype As I mentioned before, I wrote a prototype app that tests if the string that the user typed in the browser is … Continue reading Getting started with gRPC – part II: the code
Getting started with gRPC – part I: the what
I recently spent some time researching gRPC and this post is a summary of what I learned. I also wrote a prototype application to test gRPC and gRPC-Web with Python and JS. The JS client takes a string from user input and test if it's a palindrome. The code can be found on GitHub and … Continue reading Getting started with gRPC – part I: the what
Do I need to indent my Python code? What about JavaScript?
Yes! Indentation, or leading white space at the beginning of a line is required in Python. You can read more about why that is important here. And here is the part of the style guide convention for indentation (PEP 8). In JavaScript on the other hand, white space is added for readability only but it … Continue reading Do I need to indent my Python code? What about JavaScript?
Difference among list, tuple and set in Python and when to use each one
Python has three similar data structures that can hold an unordered collection of elements: list, tuple and set. Here's how they differ: initialization list: using the built-in list() or the square brackets ([]): list1 = list() # creates an empty list list2 = [] # also creates an empty list list3 = ['a', 'b', 'c', … Continue reading Difference among list, tuple and set in Python and when to use each one
Sending docker container logs to a separate file
In a large web application, the backend logs can get quite verbose: requests created, sent, processed, received, etc. The list can grow large very quickly depending on how logs are implemented. You can check the logs from a Docker container using docker logs, no need to exec into the container: docker logs <container_id> You can … Continue reading Sending docker container logs to a separate file
