It is a simple service which can find anagrams for loaded words.
This service use Postgre as database, so you have to install it and setup .env file in project. Also you will need some packets for Golang:
go get github.com/gorilla/mux- Router for REST APIgo get github.com/joho/godotenv- .env file supportgo get gorm.io/gorm- ORM for Golanggo get gorm.io/driver/postgres- ORM driver for postgre
To run service use command go run main.go in directory anagramService.
Use localhost:8080/load to load words. They have to be packed as array in Json.
Use localhost:8080/get?word=<you word here> to find anagrams for the word.
Examples:
curl localhost:8080/load -d '["foobar", "aabb", "baba", "boofar", "test"]'curl localhost:8080/get?word=foobar
Main idea of service is to use hash index of Postgre for fast search via words for possible anagrams. As anagrams are common in amount of the same letters, so for each words we count amount of each letter in it and save this data in string. For example: "a1b1c2d0e0..." (all other letters followed by zeroes) for "abcc".
When we want to find anagrams we just search in hash index for such string which was calculated for word in request.