API, POST - Printable Version

API, POST - Printable Version

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+--- Thread: API, POST (/showthread.php?tid=4338)

API, POST - tomnord - 01.11.2022

So, I've run into a wall on something as ease as a POST function to a API.
How do I format the request to get this to work?

Code:
curl --request POST \
     --url https://api.easee.cloud/api/chargers/EH840488/settings \
     --header 'Authorization: Bearer *****MY TOKEN*****' \
     --header 'content-type: application/*+json' \
     --data '
{
     "dynamicChargerCurrent": 16
}
'

Code:
function WriteToEasee(request, request_body)
  request_url = 'https://api.easee.cloud/api/' .. request
  local response_body = {}
  local request_body = ""
  local body, code, hdrs, stat = ssl.https.request{
    url = request_url;
    method = "POST";
    headers =
    {
      ["Content-Type"] = "application/json";
      ["Authorization"] = "Bearer " .. API_Token;
    };
    source = ltn12.source.string(request_body);
    sink = ltn12.sink.table(response_body);
  }
  log(code)
  if code == 200 then
    ret = table.concat(response_body)
    ret = json.pdecode(ret)
    return ret
  else 
    --API_Token = GetToken() -- request a new token
  end
end

dynCurr = 10
-- Dynamic current setting.
WriteToEasee('chargers/' .. ChargerID  .. '/settings', "dynamicChargerCurrent" .. dynCurr)

This is as far as I've gotten. I'm getting code 400, request is missing or has invalid values.
I guess it's a small matter, but i have not worked with POST functions before.

RE: API, POST - admin - 01.11.2022

Request is missing Content-Length header:

Code:
["Content-Length"] = #request_body,

RE: API, POST - tomnord - 01.11.2022

(01.11.2022, 07:19)admin Wrote: Request is missing Content-Length header:

Code:
["Content-Length"] = #request_body,

Still 400:

Code:
function WriteToEasee(request, request_body)
  request_url = 'https://api.easee.cloud/api/' .. request
     local response_body = {}
  local content_length

  if type(request_body) == "string" then
    content_length = #request_body
  else
    request_body = ""
  end

  local body, code, hdrs, stat = ssl.https.request{
    url = request_url;
    method = "POST";
    headers =
    {
      ["Content-Type"] = "application/json";
      ["Authorization"] = "Bearer " .. API_Token;
      ["Content-Length"] = #request_body,
    };
    source = ltn12.source.string(request_body);
    sink = ltn12.sink.table(response_body);
  }
  log(code)
  if code == 200 then
    ret = table.concat(response_body)
    ret = json.pdecode(ret)
    return ret
  else 
    --API_Token = GetToken() -- request a new token
  end
end

dynCurr = 10
-- Dynamic current setting.
WriteToEasee('chargers/' .. ChargerID  .. '/settings', "dynamicChargerCurrent" .. dynCurr)

(01.11.2022, 07:23)tomnord Wrote:
(01.11.2022, 07:19)admin Wrote: Request is missing Content-Length header:

Code:
["Content-Length"] = #request_body,

Still 400:

Code:
function WriteToEasee(request, request_body) request_url = 'https://api.easee.cloud/api/' .. request local response_body = {} local content_length if type(request_body) == "string" then content_length = #request_body else request_body = "" end local body, code, hdrs, stat = ssl.https.request{ url = request_url; method = "POST"; headers = { ["Content-Type"] = "application/json"; ["Authorization"] = "Bearer " .. API_Token; ["Content-Length"] = #request_body, }; source = ltn12.source.string(request_body); sink = ltn12.sink.table(response_body); } log(code) if code == 200 then ret = table.concat(response_body) ret = json.pdecode(ret) return ret else --API_Token = GetToken() -- request a new token end end dynCurr = 10 -- Dynamic current setting. WriteToEasee('chargers/' .. ChargerID .. '/settings', "dynamicChargerCurrent" .. dynCurr)

Could it be a mismatch with this?
WriteToEasee('chargers/' .. ChargerID .. '/settings', "dynamicChargerCurrent" .. dynCurr)

In the docs it says this: "{\"dynamicChargerCurrent\":16}"

RE: API, POST - admin - 01.11.2022

You need to encode your request data using JSON:

Code:
body = require('json').encode({ dynamicChargerCurrent = dynCurr })
WriteToEasee('chargers/' .. ChargerID  .. '/settings', body)

RE: API, POST - tomnord - 01.11.2022

(01.11.2022, 07:27)admin Wrote: You need to encode your request data using JSON:

Code:
body = require('json').encode({ dynamicChargerCurrent = dynCurr }) WriteToEasee('chargers/' .. ChargerID .. '/settings', body)

BINGO, Thank You, as always Smile

Only thing missing now is the response_body.. that one is blank.