## Compile the plugins

### plugins/go.mod

```go
module plugins

go 1.13

replace github.com/lf-edge/ekuiper => /$eKuiper

require (
    github.com/lf-edge/ekuiper v0.0.0-00010101000000-000000000000 // indirect
    github.com/taosdata/driver-go v0.0.0-20200723061832-5be6460b0c20
)
```

```shell
go mod edit -replace github.com/lf-edge/ekuiper=/$eKuiper
go build -trimpath -modfile extensions.mod --buildmode=plugin -o /$ekuiper/plugins/sinks/Tdengine@v1.0.0.so /$ekuiper/extensions/sinks/tdengine/tdengine.go
```
### Install plugin
Since the operation of the tdengine plug-in depends on the tdengine client, for the convenience of users, the tdengine client will be downloaded when the plug-in is installed. However, the tdengine client version corresponds to the server version one-to-one, which is not compatible with each other, so the user must inform the tdengine server version used.
## Rule Actions Description

As the tdengine database requires a time stamp field in the table, the user must inform the time stamp field name of the data table (required tsFieldName). The user can choose whether to provide time stamp data. If not (provideTs=false), the content of the time stamp field is automatically generated by the tdengine database.

| Name        | Type     | Optional                                          | Description                                 |
| ----------- | -------- | ------------------------------------------------- | ------------------------------------------- |
| ip          | string   | false                                             | Database ip                                 |
| port        | int      | false                                             | Database port                               |
| user        | string   | false                                             | Username                                    |
| password    | string   | false                                             | Password                                    |
| database    | string   | false                                             | Database name                               |
| table       | string   | false                                             | Table Name                                  |
| fields      | []string | true（Replace with data key when not filling in） | Table field collection                      |
| provideTs   | Bool     | false                                             | Whether the user provides a timestamp field |
| tsFieldName | String   | false                                             | Timestamp field name                        |

## Operation example

### To create a database or table, refer to the following documents:

```http
https://www.taosdata.com/cn/getting-started/
```

### Create a stream

```bash
curl --location --request POST 'http://127.0.0.1:9081/streams' --header 'Content-Type:application/json' --data '{"sql":"create stream demoStream(time string, age BIGINT) WITH ( DATASOURCE = \"device/+/message\", FORMAT = \"json\");"}'
```

### Create a rule

```bash
curl --location --request POST 'http://127.0.0.1:9081/rules' --header 'Content-Type:application/json' --data '{"id":"demoRule","sql":"SELECT * FROM demoStream;","actions":[{"tdengine":{"provideTs":true,"tsFieldName":"time","port":0,"ip":"127.0.0.1","user":"root","password":"taosdata","database":"dbName","table":"tableName","fields":["time","age"]}}]}'
```

### Send data

```bash
mosquitto_pub -h broker.emqx.io -m '{"time":"2020-01-11 18:18:18", "age" : 18}' -t device/device_001/message
```