(1) I have used Julia packages for connecting to PostgreSQL, mongoDB, and SQLite. It has been extremely solid. I still wish for the GIS components to be more feature extensive (e.g., writing multilayers features directly).
(2) The HTTP package (HTTP.jl) is great. You also have you HTML and CSS selectors (Gumbo/Cascadia). Some of the the best JSON parsers across languages too. I also developed WebDriver.jl (you can use it with Selenium). Diana.jl is a solid GraphQL client/server package. Genie.jl is a comprehensive web framework.
(3) Those packages have been stable for years. Web and databases are quite straightforward. The least matured one would be the web framework which published its current major version last summer.
Those two ecosystems might be the most matured ones in all of Julia and in most programming languages. I use have been using them extensively in Julia for several years.
(2) The HTTP package (HTTP.jl) is great. You also have you HTML and CSS selectors (Gumbo/Cascadia). Some of the the best JSON parsers across languages too. I also developed WebDriver.jl (you can use it with Selenium). Diana.jl is a solid GraphQL client/server package. Genie.jl is a comprehensive web framework.
(3) Those packages have been stable for years. Web and databases are quite straightforward. The least matured one would be the web framework which published its current major version last summer.
Those two ecosystems might be the most matured ones in all of Julia and in most programming languages. I use have been using them extensively in Julia for several years.