maksadbek / companies

companies

TLDR:

1. Compile with make
2. Run server with ./bin/server -addr=localhost:8080 -file=./testdata/companies.csv
3. Run Postgresql and create datbase and run migrations from migrations/initial_up.sql
4. Run client with ./bin/client -serverAddr=http://localhost:8080 -updateInterval=1m -dsn=postgresql://docker:password@localhost/docker?sslmode=disable
5. See Server API reference to make some changes.

Server

Server reads records from csv file and fills up its cache. Exposes HTTP API to list, add and remove companies.

CLI arg reference:

max@asylum companies % ./bin/server  --help           
Usage of ./bin/server:
  -addr string
    	address (default ":8080")
  -file string
    	file with companies (default "testdata/companies.csv")

API:

List

GET http://localhost:8080/

Add

POST http://localhost:8080/add
Content-type: application/json

{
	"name": "google",
	"inn": "12312313",
	"phone": "897442323",
	"address": "Moscow",
	"individual": "Larry Page"
}

Remove

DELETE http://localhost:8080/delete?id=google
DELETE http://localhost:8080/delete?id=inn

Where id can be name or INN.

Client

Client runs periodically and synchronizes data in a server with a database.

Client CLI reference:

max@asylum companies % ./bin/client -h            
Usage of ./bin/client:
 -dsn string
    database source (default "postgresql://docker:password@localhost/docker?sslmode=disable")
 -serverAddr string
    server address (default "http://localhost:8080")
 -updateInterval duration
    update interval (default 1m0s)

max@asylum companies % make client && ./bin/client
cd src && go build -o ../bin/client ./cmd/client
2021/03/03 13:57:31 initialized companies from database, size: 4
2021/03/03 13:57:31 change: prev: &{intuit inn2 897442325 moscow bond, james bond false} new: &{intuit inn22 897442325 moscow bond, james bond false}
2021/03/03 13:57:31 updating database: actual: 4, add: 0, del: 0, change: 1
2021/03/03 13:57:31 change: &{Name:intuit INN:inn22 Phone:[phone] Address:moscow Individual:bond, james bond Removed:false}
2021/03/03 13:57:31 successfully updated database
2021/03/03 13:58:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused
2021/03/03 13:59:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused
2021/03/03 14:00:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused
2021/03/03 14:01:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused
2021/03/03 14:02:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused
2021/03/03 14:03:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused
2021/03/03 14:04:31 failed to update database: Get "http://localhost:8080/": dial tcp [::1]:8080: connect: connection refused