Just notes on problems I face:
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Updating a React Native/Expo image file does not update the visualization of this image everywhere in the app
I’ve had an interesting problem when saving and updating images in a React Native application built with Expo. I’m building an app that has contacts and images (that are either taken from the phone contact entry or picked from the gallery). The issue was that editing the image at one place and saving it, would…
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Getting an error while trying to debug JEST tests
Do you get something like:“Error: Cannot find module ‘D:\project_folder\package.json’”And your require stack contains paths.js, env.js and test.js? Well, you have to both configure the runtimeExecutable and the cwd. This error is because you’re running the tests from outside your directory.
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Android Emulator Losing Internet Connectivity
Spoiler: When having Internet connectivity issues, make sure that Android Studio is running. (because it acts as a proxy for the emulator) So I’ve had a reoccurring issue where my Android Emulator device would lose connectivity from time to time, and to fix it I went to delete it and create a new device from…
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Tips for Meaningful Interviews with Developers
Lately I’ve been recruiting people for our Front-End team at Up2 Technology. I am quite satisfied with the process so I decided to share it with you. This is a non-extensive list with the guidelines I’m trying to follow in order to have an interviewing process satisfying for both me and the people applying. Empathy…
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Wondering how big is your React project?
Recently I wanted to explore the impact of a refactoring I did so I ended up checking the length of the files I’ve had in git (hoping that this number would decrease). The magic command was to list the files in git, grep the ones ending with js, jsx and css and count the lines.…
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AWS S3 and it’s informative errors – 404, “NoSuchUpload”
I’m continuing with my exploration in the AWS world 🙂 For the last couple of days, I have been occasionally receiving the weird error “NSuckUpload” when I try to either upload a part to an S3 Multipart upload or try to complete the upload with given UploadId. S3 Multipart Upload is the way you upload…
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AWS Closes S3 Read Stream Unexpectedly
I’m continuing with my notes on transferring big files from and to AWS S3 with node.js If you are reading a file from a S3 bucket using a stream that you occasionally pause, mind that the read stream will be closed in 60 minutes. If you cannot handle the file in that period of time,…
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Node.js Streams and why sometimes they don’t pause()
TL; DR: If you pipe your node.js streams, make sure you pause the last one in the chain. The longer story: We’re building a node.js application that ingests data from multiple data sources for a client of ours. Since they are quite big in size and in user base (we’re going to process data for…