Hi ! I’m a newbie grafana user and I try to “play” with it.
I wrote a simple python script using a standard http server (http.server).
On grafana side I created a data source pointing on localhost:5000.
It looks good since when I click on Save & test on Connections>Data sources dialog,
I got a “Data source is working” message and can see that my server receive a request on “/data”.
But then, when I try the explore data, my serveur receive a request on /data/metrics, it responds with a well serialized json (as I found some on fora) but grafana says No data.
Here is what looks like :
import http.server as HttpServer
import socketserver as SocketServer
import json,time,random
def json_server ( port,func ):
class MyHandler ( HttpServer.BaseHTTPRequestHandler ):
def do_GET ( self ):
size = int( self.headers.get('Content-Length','-1') or '-1')
data = None if size < 0 else self.rfile.read( size )
code,resp = func( self.command,self.path,dict(self.headers),data )
self.send_response( code )
if resp is not None :
resp = json.dumps( resp ).encode('utf8')
self.send_header('Content-type','application/json')
self.send_header('Content-Length',len( resp ))
self.end_headers()
self.wfile.write( resp )
do_POST = do_GET
log_message = lambda *args : print( args[1]%tuple( args[2:] ))
while True :
SocketServer.TCPServer(('',port),MyHandler ).handle_request()
def func ( verb,path,head,body ):
now = int(time.time())
data = [{"target": "Measure", "datapoints": [[11,now-3],[12,now-2],[13,now-1],[14,now]]}]
return 200,data
json_server(5000,func)
And here are the logs :
"GET /data HTTP/1.1" 200 - // Save & Test
"POST /data/metrics HTTP/1.1" 200 - // explore data
What am I doing wrong ?
Thank in advance !
