Sean Rennie – Medium

Sean Rennie

Programatic message threading with your Slack Bot

Thread related messages & avoid being an automated spammer.

3 min readMay 24, 2021

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Programatic message threading with your Slack Bot

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Sean Rennie

COGs in production

Leveraging Cloud Optimised GeoTIFFs (COGs) to display high resolution drone imagery on a web application. Save on processing and storage…

10 min readMay 12, 2021

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COGs in production

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Sean Rennie

Building a Slack bot

… and using it to send status messages or other notifications to Slack from any browser app

9 min readApr 26, 2021

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Building a Slack bot

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Sean Rennie

Angular at a glance

Four things I learned trying Angular for the first time.

4 min readMar 23, 2021

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Angular at a glance

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Sean Rennie

Migrating react-leaflet from v2 to v3

Some notes on migrating a production app from react-leaflet v2 to v3. I’ll walk through some reasons to upgrade, whats changed, examples…

7 min readFeb 21, 2021

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Migrating react-leaflet from v2 to v3

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Sean Rennie

Local state management with Apollo and React hooks.

Using Apollo’s new react hooks to create simple to use local state in a react application. This one uses Typescript.

8 min readOct 29, 2019

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Local state management with Apollo and React hooks.

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Sean Rennie

Local State management with React hooks and the Context API using Typescript

An adaption of Luke Hall’s great article, State Management with React Hooks and Context API in 10 lines of code, for my React Typescript …

4 min readSep 27, 2019

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Local State management with React hooks and the Context API using Typescript

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Sean Rennie

Sean Rennie

Software engineer with a love of maps and anything geospatial. I enjoy techno, the outdoors, tequila & coffee. Currently working at Sensat Ltd

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