func (cli *OpsGenieAlertClient) Get(req alerts.GetAlertRequest) (*alerts.GetAlertResponse, error) {
req.ApiKey = cli.apiKey
// validate the mandatory parameters: apiKey, id/alias/tinyId
if req.ApiKey == "" {
return nil, errors.New("ApiKey is a mandatory field and can not be empty.")
}
if req.Id == "" && req.Alias == "" && req.TinyId == "" {
return nil, errors.New("At least one of the parameters of id, alias and tiny id should be set.")
}
if (req.Id != "" && req.Alias != "") || (req.Id != "" && req.TinyId != "") || (req.Alias != "" && req.TinyId != "") {
return nil, errors.New("Only one of the parameters of id, alias and tiny id should be set.")
}
v, _ := goquery.Values(req)
var resp *goreq.Response
var err error
for i := 0; i < cli.retries; i++ {
resp, err = cli.buildRequest("GET", GET_ALERT_URL+"?"+v.Encode(), nil).Do()
if err == nil {
break
}
time.Sleep(TIME_SLEEP_BETWEEN_REQUESTS)
}
if err != nil {
return nil, errors.New("Could not retrieve the alert: a problem occured while sending the request")
}
// check the returning HTTP status code
httpStatusCode := resp.StatusCode
if httpStatusCode >= 400 && httpStatusCode < 500 {
return nil, errors.New(fmt.Sprintf("Client error %d returned", httpStatusCode))
}
if httpStatusCode >= 500 {
return nil, errors.New(fmt.Sprintf("Server error %d returned", httpStatusCode))
}
var getAlertResp alerts.GetAlertResponse
// check if the response can be unmarshalled
if err = resp.Body.FromJsonTo(&getAlertResp); err != nil {
return nil, errors.New("Server response can not be parsed.")
}
return &getAlertResp, nil
}
