DAR – Medium

DAR
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Elemental Elixir

Supercharge Your Ecto Queries over Postgres JSONB with Flop: Filtering, Sorting, and Pagination

Elixir’s Ecto library is fantastic for interacting with your database. But when it comes to building dynamic user interfaces with features…

3 min readMar 28, 2024

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Supercharge Your Ecto Queries over Postgres JSONB with Flop: Filtering, Sorting, and Pagination

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DAR
in
Elemental Elixir

Using Plug in Elixir Phoenix to transfer custom request header or params value to HTTP Headers

Elixir’s web framework Phoenix makes use of Plugs which are composable module layers through which the HTTP request passes through allowing…

2 min readJan 23, 2024

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Using Plug in Elixir Phoenix to transfer custom request header or params value to HTTP Headers

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DAR
in
DevOps.dev

Anomaly Alerts for monitoring using Grafana and Prometheus

8 min readNov 21, 2023

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Anomaly Alerts for monitoring using Grafana and Prometheus

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DAR
in
DevOps.dev

Multi node KRaft based Kafka cluster with monitoring.

As of Kafka 7.5 Zookeeper is deprecated as an option to start new kafka cluster and default strategy is to use the KRaft to have a…

4 min readOct 30, 2023

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Multi node KRaft based Kafka cluster with monitoring.

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DAR
in
DevOps.dev

Backup Grafana SQLite with Litestream using s6-overlay in a container app

5 min readOct 7, 2023

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Backup Grafana SQLite with Litestream using s6-overlay in a container app

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DAR
in
DevOps.dev

Load balancing Vector using HAProxy to collect logs and metrics for High availability in a…

Vector on their website has 3 topologies to deploy vector. Distributed, Centralized and Stream based.

4 min readSep 3, 2023

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Load balancing Vector using HAProxy to collect logs and metrics for High availability in a…

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DAR
in
DevOps.dev

Distributed Prometheus metrics collection; using TLS to secure Prometheus remote write via Vector

Prometheus is a great tool to collect metrics. Allowing to collect metrics published by applications or published by applications on behalf…

6 min readJun 4, 2023

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Distributed Prometheus metrics collection; using TLS to secure Prometheus remote write via Vector

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DAR

Ruby is dead; Long live Yet Another Ruby JIT

Ruby is dead ? Just not yet, earlier this year Shopify released their Ruby 3.2 YJIT improvement as production ready. Ruby has been taking…

3 min readMay 2, 2023

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Ruby is dead; Long live Yet Another Ruby JIT

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DAR

Migrating to Phoenix Liveview Streams

Phoenix released 1.7.0 with Liveview 0.18.16 and introduced Streams for liveview. At first it was not clear to me how to replace my current…

4 min readApr 19, 2023

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Migrating to Phoenix Liveview Streams

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DAR

How I found an S3 vulnerability in a $85 million funded startup and reported it ethically

Last year I spent a complete year back home in Pakistan. With Intermittent lock-downs and COVID-19 clusters popping around majority of…

4 min readSep 20, 2022

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How I found an S3 vulnerability in a $85 million funded startup and reported it ethically

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DAR

DAR

Coder during the day, squash player in the evening and cricketer over the weekends. Doubts are the ants in the pants, that keep faith moving

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