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Merge pull request #20 from Issif/newclient_methods
#### Enhancement
- **all outputs use new generic methods (`NewClient()` + `Post()`), new output integration will be easier**
- 💥 some variables have been renamed to be relevant with their real names in API docs of Outputs
- `DATADOG_TOKEN` **->** `DATADOG_API_KEY`
- `SLACK_TOKEN` **->** `SLACK_WEBHOOK_URL`
#### Fix
- `/test` sends an event with a timestamp set at *now*- Loading branch information
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package outputs | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "errors" | ||
| "log" | ||
| "net/http" | ||
| "net/url" | ||
| "os" | ||
| ) | ||
|
|
||
| // Different Error Types | ||
| var ErrHeaderMissing = errors.New("Header missing") | ||
| var ErrNotFound = errors.New("Resource not found") | ||
| var ErrClientAuthenticationError = errors.New("Authentication Error") | ||
| var ErrForbidden = errors.New("Authentication Error") | ||
| var ErrUnprocessableEntityError = errors.New("Bad Request") | ||
| var ErrTooManyRequest = errors.New("Exceeding post rate limit") | ||
| var ErrClientCreation = errors.New("Client creation Error") | ||
|
|
||
| // Client communicates with the different API. | ||
| type Client struct { | ||
| OutputType string | ||
| EndpointURL *url.URL | ||
| } | ||
|
|
||
| // NewClient returns a new output.Client for accessing the different API. | ||
| func NewClient(outpuType string, defaultEndpointURL string) (*Client, error) { | ||
| c := &Client{OutputType: outpuType} | ||
| endpointURL, err := url.Parse(defaultEndpointURL) | ||
| if err != nil { | ||
| return nil, ErrClientCreation | ||
| } | ||
| c.EndpointURL = endpointURL | ||
| return c, nil | ||
| } | ||
|
|
||
| // Post sends event (payload) to Output. | ||
| func (c *Client) Post(payload interface{}) { | ||
| body := new(bytes.Buffer) | ||
| json.NewEncoder(body).Encode(payload) | ||
|
|
||
| if os.Getenv("DEBUG") == "true" { | ||
| log.Printf("[DEBUG] : %v payload : %v\n", c.OutputType, body) | ||
| } | ||
|
|
||
| resp, err := http.Post(c.EndpointURL.String(), "application/json; charset=utf-8", body) | ||
| if err != nil { | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, err.Error()) | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| switch resp.StatusCode { | ||
| case http.StatusOK, http.StatusCreated, http.StatusAccepted, http.StatusNoContent: //200, 201, 202, 204 | ||
| log.Printf("[INFO] : %v - Post OK (%v)\n", c.OutputType, resp.StatusCode) | ||
| case http.StatusBadRequest: //400 | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, ErrHeaderMissing) | ||
| case http.StatusUnauthorized: //401 | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, ErrClientAuthenticationError) | ||
| case http.StatusForbidden: //403 | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, ErrForbidden) | ||
| case http.StatusNotFound: //404 | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, ErrNotFound) | ||
| case http.StatusUnprocessableEntity: //422 | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, ErrUnprocessableEntityError) | ||
| case http.StatusTooManyRequests: //429 | ||
| log.Printf("[ERROR] : %v - %v\n", c.OutputType, ErrTooManyRequest) | ||
| default: | ||
| log.Printf("[ERROR] : %v - Unknown Response: %v\n", c.OutputType, ErrHeaderMissing) | ||
| } | ||
| } |
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