How we build and operate the Keboola data platform
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Ondřej Popelka
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4 min read
Code Coverage? Code Schmoverage!
In Keboola, we take testing really seriously. Every new component has to start with tests. For simple dockerized components they mostly run…
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Ondřej Popelka
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3 min read
How Docker Changed Our World
If you are a follower of Keboola, you probably realized that now we do a lot of stuff in Docker. But it was not always this way. We now…
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Ondřej Hlaváček
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2 min read
Parallel Multipart Uploads to S3 in PHP
Being a Keboola Connection developer has some benefits. Due to it's async/batch nature I don't have to worry about milliseconds or dive…
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Vladimír Kriška
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3 min read
Error handling in AWS Lambda
AWS Lambda is a service that lets you run code without provisioning or managing servers. That presents a great step forward in evolution of…
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Ondřej Hlaváček
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3 min read
Querying JSON Ad-hoc in Snowflake
Sometimes I end up with a serialized JSON stored in a relational database (or in a CSV file). It often contains data structures that are…