CleanIfElse
Map inside a list. Search if Key and value exists and grab the entire map
First time posting on this forum so yay! I am new to Elixir and decided to post a question I been struggling on.
So there is a list and inside the list are maps. I am trying to grab the map which has key of “type” and the value of “ITEM_PURCHASED”. Others can be completely ignored. I used Map.take function but the problem is, it grabs the the first map below.
%{
"itemId" => 1052,
"participantId" => 8,
"timestamp" => 1152905,
"type" => "ITEM_DESTROYED"
},
%{
"itemId" => 1052,
"participantId" => 5,
"timestamp" => 1153731,
"type" => "ITEM_PURCHASED"
},
%{
"levelUpType" => "NORMAL",
"participantId" => 1,
"skillSlot" => 2,
"timestamp" => 1155348,
"type" => "SKILL_LEVEL_UP"
},
Cheers,
Cleanifelse
Most Liked
eksperimental
iex(9)> list
[
%{
"itemId" => 1052,
"participantId" => 8,
"timestamp" => 1152905,
"type" => "ITEM_DESTROYED"
},
%{
"itemId" => 1052,
"participantId" => 5,
"timestamp" => 1153731,
"type" => "ITEM_PURCHASED"
},
%{
"levelUpType" => "NORMAL",
"participantId" => 1,
"skillSlot" => 2,
"timestamp" => 1155348,
"type" => "SKILL_LEVEL_UP"
}
]
iex(10)> Enum.find(list, fn map -> map["type"] == "ITEM_PURCHASED" end)
%{
"itemId" => 1052,
"participantId" => 5,
"timestamp" => 1153731,
"type" => "ITEM_PURCHASED"
}
eksperimental
By the way, you shouldn’t be using strings, but atoms as keys for maps, and for “type” values as well
CleanIfElse
Thank you Eksperimental! I will keep that in mind as well. 
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Supporting innovation across the BEAM ecosystem.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #advent-of-code
- #elixirconf-us
- #distillery
- #processes
- #forms
- #api
- #metaprogramming
- #security
- #performance
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking for Elixir devs who love to ship. Start your free account.
Practical resources that improve the lives of professional developers.
Develop your skills with books, videos, and courses.
Producing high quality Elixir screencasts since 2017.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"