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Let data get expired.

main
clerie 1 year ago
parent
commit
f60e3a3f89
  1. 7
      README.md
  2. 9
      iot_data/__init__.py

7
README.md

@ -21,6 +21,8 @@ Content type is considered too: @@ -21,6 +21,8 @@ Content type is considered too:
curl -X POST -d '{"key": "value"}' -H 'Content-Type: application/json' http://iot-data.clerie.de/ingress/asdf1234/
```
Check for the last data input with the `Last-Modified` header.
## Deployment
Init codebase
```
@ -38,12 +40,15 @@ Create `config.json` with the following contents and edit values for your needs: @@ -38,12 +40,15 @@ Create `config.json` with the following contents and edit values for your needs:
"key": "asdf1234"
},
"sensor2": {
"key": "supersecret"
"key": "supersecret",
"delete-after": 60
},
}
```
`delete-after`: Specifies the seconds after which the data gets discarded and no data is returned.
Starten und updaten lässt sich die Flask-App folgendermaßen:
```
cd iot-data/

9
iot_data/__init__.py

@ -3,6 +3,7 @@ @@ -3,6 +3,7 @@
from flask import Flask, abort, request, make_response
import json
import os
import time
app = Flask(__name__)
@ -32,6 +33,7 @@ def ingress(key): @@ -32,6 +33,7 @@ def ingress(key):
values[keys[key]] = {
"payload": request.data,
"content-type": content_type,
"last-modified": time.time(),
}
else:
return make_response("", 404)
@ -42,10 +44,15 @@ def ingress(key): @@ -42,10 +44,15 @@ def ingress(key):
def data(name):
if not name in config:
return make_response("", 404)
if name in values:
if "delete-after" in config[name]:
if (values[name]["last-modified"] + config[name]["delete-after"]) < time.time():
values.pop(name)
if not name in values:
return make_response("", 404)
resp = make_response(values[name]["payload"], 200)
resp.headers['content-type'] = values[name]["content-type"]
resp.headers['Content-Type'] = values[name]["content-type"]
resp.headers['Last-Modified'] = time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(values[name]["last-modified"]))
return resp
if __name__ == "__main__":

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