[0.9.0-rc31] Unable to write point

[JauntyWard]

Using the Go Influx API and Influx 0.9 rc31 I am unable to write points to the database. When using code adapted from the API documentation, the following error occurs on the write:

json: cannot unmarshal number into Go value of type struct { Results []client.Result "json:\"results,omitempty\""; Err string "json:\"error,omitempty\"" }

What am I doing wrong?

[toddboom]

@JauntyWard can you send us an example of the code you're using?

[JauntyWard]

@toddboom Sure, below is an example of my code. Thanks.

type bucket struct {
    Name      string            
    Timestamp string            
    Tags      map[string]string 
    Fields map[string]interface{} 
}

func writeInfluxDB(buckets []bucket, influxConnection *client.Client, config influxDBConfig) {
    var (
        points      = make([]client.Point, len(buckets))
        pointsIndex = 0
    )

    for k := range buckets {
        bucket := buckets[k]

        points[pointsIndex] = client.Point{
            Measurement: bucket.Name,
            Tags:        bucket.Tags,
            Fields:      bucket.Fields,
            Time:        time.Now(),
        }
        pointsIndex++
    }

    pointsBatch := client.BatchPoints{
        Points:          points,
        Database:        config.influxDatabase,
        RetentionPolicy: "default",
    }

    _, err := influxConnection.Write(pointsBatch)
    if err != nil {
        fmt.Println(err)
    }
}

[aviau]

@toddboom

I don't know if this is related, but I cannot write points on 0.9.0-rc31 (switching from rc30):
I get the following error: InfluxDBClientError: 500: {"error":"bucket name required"}

Writing this does not work:

{
    "points": [
        {
            "fields": {
                "value": 0.64
            },
            "time": "2009-11-10T23:00:00Z",
            "measurment": "cpu_load_short",
            "tags": {
                "host": "server01",
                "region": "us-west"
            }
        }
    ],
    "database": "db"
}

But this works:

{
    "fields": {
        "value": 0.64
    },
    "tags": {
        "host": "server01",
        "region": "us-west"
    },
    "database": "db",
    "measurment": "cpu_load_short",
    "time": "2009-11-10T23:00:00Z"
}

[beckettsean]

@aviau there's a syntax error in your examples, the correct spelling is measurement, not measurment. It's wrong in both snippets, but the lack of a measurement name should render a point invalid, as the database has no way of determining to which series the point belongs. I cannot explain why the second JSON block would be accepted as a valid point.

[JauntyWard]

For me, both of the examples from @aviau with measurement spelled correctly (or indeed spelled incorrectly) yields a result of "400: {"error":"json: cannot unmarshal object into Go value of type []client.Point"}"

If, however, I am to use the following JSON:

 [
    {
        "measurement": "cpu_load_short",
        "tags": {
            "host": "server01",
            "region": "us-west"
        },
        "timestamp": "2009-11-10T23:00:00Z",
        "fields": {
            "value": 0.64
        }
    }
]

The result is "500: {"error":"bucket name required"}". However if I change measurement to name. It writes successfully.

[aviau]

@beckettsean

Wierd. Using ''name'' works.

[beckettsean]

Given the write path changes between RC31 and RC32 I think we can close this issue. Please re-test with the impending RC33.