Init PostgreSQL module

Author: im-kulikov

.travis.yml

@@ -0,0 +1,16 @@
+language: go
+go:
+  - 1.11.x
+env:
+  - GO111MODULE=on
+install:
+  - go get -v golang.org/x/lint/golint
+  - go mod tidy -v
+script:
+  - golint -set_exit_status ./...
+  - go test -race -coverprofile=coverage.txt -covermode=atomic ./...
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+matrix:
+  allow_failures:
+    - go: tip

README.md

@@ -1,2 +1,25 @@
-# postgres
-PostgreSQL module provides you connection to PostgreSQL server
+# PostgreSQL module (for Helium) provides you connection to PostgreSQL server
+
+Module provides you connection to PostgreSQL server
+- `*pg.DB` is a database handle representing a pool of zero or more underlying connections. It's safe for concurrent use by multiple goroutines
+
+Configuration:
+- yaml example
+```yaml
+posgres:
+    address: string
+    username: string
+    password: string
+    database: string
+    debug: bool
+    pool_size: int
+```
+- env example
+```
+POSTGRES_ADDRESS=string
+POSTGRES_USERNAME=string
+POSTGRES_PASSWORD=string
+POSTGRES_DATABASE=string
+POSTGRES_DEBUG=bool
+POSTGRES_POOL_SIZE=int
+```

go.mod

@@ -0,0 +1,10 @@
+module github.com/go-helium/postgres
+
+require (
+	github.com/go-pg/pg v8.0.1+incompatible
+	github.com/im-kulikov/helium v0.9.2
+	github.com/pkg/errors v0.8.1
+	github.com/smartystreets/goconvey v0.0.0-20190222223459-a17d461953aa
+	github.com/spf13/viper v1.3.1
+	go.uber.org/zap v1.9.1
+)