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influxdb.go
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influxdb.go
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/*
*
* Copyright 2021 The Vitess Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* /
*/
package influxdb
import (
"context"
"fmt"
influxdb2 "github.com/influxdata/influxdb-client-go/v2"
)
const (
ErrorInvalidConfiguration = "invalid configuration"
)
// Client used to query and interact with an influxdb server.
type Client struct {
influx influxdb2.Client
Config *Config
}
// Select issues the given query to the Client and parses the results into a key/value
// map with the name of the field as key and its interface{} as value.
func (c *Client) Select(query string) ([]map[string]interface{}, error) {
var result []map[string]interface{}
queryAPI := c.influx.QueryAPI("")
queryResult, err := queryAPI.Query(context.Background(), query)
if err == nil {
for queryResult.Next() {
result = append(result, queryResult.Record().Values())
}
if queryResult.Err() != nil {
return result, fmt.Errorf("Query error: %s\n", queryResult.Err().Error())
}
} else {
return result, fmt.Errorf("Query error: %s\n", err.Error())
}
return result, nil
}