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https://github.com/steinhobelgruen/netatmo-api-go.git
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Initial release
This commit is contained in:
Nicolas Leclercq
parent
5fdfa3e127
commit
dbb64a439a
82
README.md
82
README.md
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@ -1,2 +1,82 @@
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# netatmo-api-go
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Simple API to access Netatmo weather station data written in Go
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Simple API to access Netatmo weather station data written in Go.
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Currently tested only with one weather station, outdoor and indoor modules. Let me know if it works with rain or wind gaude.
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## Quickstart
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[Create a new netatmo app](https://dev.netatmo.com/dev/createapp)
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## Example
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```go
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import (
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"fmt"
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"os"
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"github.com/exzz/netatmo-api-go"
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)
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func main() {
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n, err := netatmo.NewClient(netatmo.Config{
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ClientID: "YOUR_APP_ID",
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ClientSecret: "YOUR_APP_SECRET",
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Username: "YOUR_CREDENTIAL",
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Password: "YOUR_PASSWORD",
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})
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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dc, err := n.GetDeviceCollection()
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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for _, station := range dc.Stations() {
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fmt.Printf("Station : %s\n", station.StationName)
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for _, module := range station.Modules() {
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fmt.Printf("\tModule : %s\n", module.ModuleName)
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ts, data := module.Data()
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for dataType, value := range data {
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fmt.Printf("\t\t%s : %s (%d)\n", dataType, value, ts)
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}
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}
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}
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}
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```
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Output should looks like this :
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```
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Station : Home
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Module : Outside
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Temperature : %!s(float32=20.2) (1440302379)
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Humidity : %!s(int32=86) (1440302379)
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Module : Bedroom 1
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CO2 : %!s(int32=500) (1441981664)
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Humidity : %!s(int32=69) (1441981664)
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Temperature : %!s(float32=21.2) (1441981664)
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Module : Bedroom 2
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Temperature : %!s(float32=21) (1441981632)
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CO2 : %!s(int32=508) (1441981632)
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Humidity : %!s(int32=68) (1441981632)
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Module : Living room
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Temperature : %!s(float32=22.1) (1441981633)
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CO2 : %!s(int32=516) (1441981633)
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Humidity : %!s(int32=67) (1441981633)
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Module : Dining room
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Humidity : %!s(int32=75) (1441982895)
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Noise : %!s(int32=36) (1441982895)
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Pressure : %!s(float32=1015.9) (1441982895)
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Temperature : %!s(float32=21.5) (1441982895)
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CO2 : %!s(int32=582) (1441982895)
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```
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## Tips
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- Only GetDeviceCollection() method actually do an API call ands refresh all data at once
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- Main station is handle as a module, it means that Modules() method returns list of additional modules and station itself.
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249
weather.go
Normal file
249
weather.go
Normal file
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@ -0,0 +1,249 @@
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package netatmo
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/http/httputil"
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"net/url"
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"reflect"
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"strings"
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"golang.org/x/oauth2"
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)
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const (
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// DefaultBaseURL is netatmo api url
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baseURL = "https://api.netatmo.net/"
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// DefaultAuthURL is netatmo auth url
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authURL = baseURL + "oauth2/token"
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// DefaultDeviceURL is netatmo device url
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deviceURL = baseURL + "api/devicelist"
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)
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// Config is used to specify credential to Netatmo API
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// ClientID : Client ID from netatmo app registration at http://dev.netatmo.com/dev/listapps
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// ClientSecret : Client app secret
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// Username : Your netatmo account username
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// Password : Your netatmo account password
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type Config struct {
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ClientID string
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ClientSecret string
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Username string
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Password string
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}
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// Client use to make request to Netatmo API
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// ClientID : Client ID from netatmo app registration at http://dev.netatmo.com/dev/listapps
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// ClientSecret : Client app secret
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// Username : Your netatmo account username
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// Password : Your netatmo account password
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// Stations : Contains all Station account
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type Client struct {
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oauth *oauth2.Config
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httpClient *http.Client
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httpResponse *http.Response
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}
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// DeviceCollection hold all devices from netatmo account (stations and modules)
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// Error : returned error (nil if OK)
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// Stations : List of stations
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// Modules : List of additionnal modules
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type DeviceCollection struct {
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Body struct {
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Stations []*Device `json:"devices"`
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Modules []*Device
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}
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}
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// Device is a station or a module
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// ID : Mac address
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// StationName : Station name (only for station)
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// ModuleName : Module name
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// Type : Module type :
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// "NAMain" : for the base station
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// "NAModule1" : for the outdoor module
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// "NAModule4" : for the additionnal indoor module
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// "NAModule3" : for the rain gauge module
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// "NAModule2" : for the wind gauge module
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// DashboardData : Data collection from device sensors
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// DataType : List of available datas
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// MainDevice : Id of main station (only for module)
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// AssociatedModules : Associated modules (only for station)
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type Device struct {
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ID string `json:"_id"`
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StationName string `json:"station_name"`
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ModuleName string `json:"module_name"`
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Type string
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DashboardData DashboardData `json:"dashboard_data"`
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DataType []string `json:"data_type"`
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MainDevice string `json:"main_device,omitempty"`
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AssociatedModules []*Device `json:"-"`
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}
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// DashboardData is used to store sensor values
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// Temperature : Last temperature measure @ LastMesure (in °C)
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// Humidity : Last humidity measured @ LastMesure (in %)
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// CO2 : Last Co2 measured @ time_utc (in ppm)
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// Noise : Last noise measured @ LastMesure (in db)
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// Pressure : Last Sea level pressure measured @ LastMesure (in mb)
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// AbsolutePressure : Real measured pressure @ LastMesure (in mb)
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// Rain : Last rain measured (in mm)
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// Rain1Hour : Amount of rain in last hour
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// Rain1Day : Amount of rain today
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// WindAngle : Current 5 min average wind direction @ LastMesure (in °)
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// WindStrength : Current 5 min average wind speed @ LastMesure (in km/h)
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// GustAngle : Direction of the last 5 min highest gust wind @ LastMesure (in °)
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// GustStrength : Speed of the last 5 min highest gust wind @ LastMesure (in km/h)
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// LastMessage : Contains timestamp of last data received
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type DashboardData struct {
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Temperature float32 `json:"Temperature,omitempty"`
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Humidity int32 `json:"Humidity,omitempty"`
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CO2 int32 `json:"CO2,omitempty"`
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Noise int32 `json:"Noise,omitempty"`
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Pressure float32 `json:"Pressure,omitempty"`
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AbsolutePressure float32 `json:"AbsolutePressure,omitempty"`
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Rain float32 `json:"Rain,omitempty"`
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Rain1Hour float32 `json:"sum_rain_1,omitempty"`
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Rain1Day float32 `json:"sum_rain_24,omitempty"`
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WindAngle float32 `json:"WindAngle,omitempty"`
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WindStrength float32 `json:"WindStrength,omitempty"`
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GustAngle float32 `json:"GustAngle,omitempty"`
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GustStrengthfloat32 float32 `json:"GustStrengthfloat32,omitempty"`
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LastMesure float64 `json:"time_utc"`
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}
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// NewClient create a handle authentication to Netamo API
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func NewClient(config Config) (*Client, error) {
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oauth := &oauth2.Config{
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ClientID: config.ClientID,
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ClientSecret: config.ClientSecret,
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Scopes: []string{"read_station"},
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Endpoint: oauth2.Endpoint{
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AuthURL: baseURL,
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TokenURL: authURL,
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},
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}
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token, err := oauth.PasswordCredentialsToken(oauth2.NoContext, config.Username, config.Password)
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return &Client{
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oauth: oauth,
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httpClient: oauth.Client(oauth2.NoContext, token),
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}, err
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}
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// do a url encoded HTTP POST request
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func (c *Client) doHTTPPostForm(url string, data url.Values) (*http.Response, error) {
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req, err := http.NewRequest("POST", url, strings.NewReader(data.Encode()))
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if err != nil {
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return nil, err
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}
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//req.ContentLength = int64(reader.Len())
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req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
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return c.doHTTP(req)
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}
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// send http GET request
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func (c *Client) doHTTPGet(url string, data url.Values) (*http.Response, error) {
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if data != nil {
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url = url + "?" + data.Encode()
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}
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return nil, err
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}
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return c.doHTTP(req)
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}
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// do a generic HTTP request
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func (c *Client) doHTTP(req *http.Request) (*http.Response, error) {
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// debug
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debug, _ := httputil.DumpRequestOut(req, true)
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fmt.Printf("%s\n\n", debug)
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var err error
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c.httpResponse, err = c.httpClient.Do(req)
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if err != nil {
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return nil, err
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}
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return c.httpResponse, nil
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}
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// process HTTP response
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// Unmarshall received data into holder struct
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func processHTTPResponse(resp *http.Response, err error, holder interface{}) error {
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defer resp.Body.Close()
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if err != nil {
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return err
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}
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// debug
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debug, _ := httputil.DumpResponse(resp, true)
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fmt.Printf("%s\n\n", debug)
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// check http return code
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if resp.StatusCode != 200 {
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//bytes, _ := ioutil.ReadAll(resp.Body)
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return fmt.Errorf("Bad HTTP return code %d", resp.StatusCode)
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}
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// Unmarshall response into given struct
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if err = json.NewDecoder(resp.Body).Decode(holder); err != nil {
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return err
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}
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return nil
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}
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// GetDeviceCollection returns the list of stations owned by the user, and their modules
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func (c *Client) GetDeviceCollection() (*DeviceCollection, error) {
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//resp, err := c.doHTTPPostForm(deviceURL, url.Values{"app_type": {"app_station"}})
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resp, err := c.doHTTPGet(deviceURL, url.Values{"app_type": {"app_station"}})
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dc := &DeviceCollection{}
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if err = processHTTPResponse(resp, err, dc); err != nil {
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return nil, err
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}
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// associated each module to its station
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for i, station := range dc.Body.Stations {
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for _, module := range dc.Body.Modules {
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if module.MainDevice == station.ID {
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dc.Body.Stations[i].AssociatedModules = append(dc.Body.Stations[i].AssociatedModules, module)
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}
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}
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}
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return dc, nil
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}
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// Stations returns the list of stations
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func (dc *DeviceCollection) Stations() []*Device {
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return dc.Body.Stations
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}
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// Modules returns the list of modules associated to this station
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// also return station itself in the list
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func (s *Device) Modules() []*Device {
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modules := s.AssociatedModules
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modules = append(modules, s)
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return modules
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}
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// Data returns timestamp and the list of sensor value for this module
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func (s *Device) Data() (int, map[string]interface{}) {
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m := make(map[string]interface{})
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for _, datatype := range s.DataType {
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m[datatype] = reflect.Indirect(reflect.ValueOf(s.DashboardData)).FieldByName(datatype).Interface()
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}
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return int(s.DashboardData.LastMesure), m
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}
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