I want to save the wind measurement i record with my raspberry pico w in the InfluxDB Cloud 2.0.
def send_data_to_influxdb(data):
# Build the HTTP request
request = (
"POST /api/v2/write?org=haschke-florian#web.de&bucket=myBucket HTTP/1.1\r\n"
"Host: cloud2.influxdata.com\r\n"
"Authorization: Token myToken\r\n"
"Content-Type: application/json\r\n"
"Content-Length: {}\r\n\r\n"
"{}"
).format(len(data), data)
sock = usocket.socket()
sock.connect(("europe-west1-1.gcp.cloud2.influxdata.com", 443))
sock.send(request.encode("utf-8"))
response = sock.recv(4096).decode("utf-8")
sock.close()
# Sample data to send
data = [
{
"measurement": "test_measurement",
"fields": {
"value": 100
}
}
]
# Write data to InfluxDB
send_data_to_influxdb(ujson.dumps(data))
somehow i get the following Error:
ValueError: invalid arguments
at: sock.connect(("europe-west1-1.gcp.cloud2.influxdata.com", 443))
What could be the issue?
Related
We are facing an error when we are trying to request UberEats API to collect report about our restaurants based on the Ubereats documentation here.
The error :
'{"error":"Could not parse json: readObjectStart: expect { or n, but found \x00, error found in #0 byte of ...||..., bigger context ...||..."}'
We tried to run the query in python and postman and still facing the same error.
Need help to understand where we failed.
Here the python code run in VSC
import requests
import json
payload = {
"report_type": "FINANCE_SUMMARY_REPORT",
"store_uuids": "xxx",
"start_date": "2022-09-01",
"end_date": "2022-09-15"
}
headers = {
"authorization": "Bearer xxx"
}
report_response = requests.post('https://api.uber.com/v1/eats/report', data=payload, headers=headers)
report_response.text
'{"error":"Could not parse json: readObjectStart: expect { or n, but found \x00, error found in #0 byte of ...||..., bigger context ...||..."}'
Best regards,
You have to convert the payload to valid JSON string and send the request.
headers = {
"Authorization" : "*********",
"Content-Type" : "application/json"
}
import json
response = requests.post("https://api.uber.co/v1/eats/report", data = json.dumps(payload), headers=headers)
How to invoke, in Powershell, bi-directional streaming rpc or server streaming rpc with grpcurl.exe and be able to send/receive messages continuously?
I have:
service Info {
...
rpc LocationUpdates ( stream .reqLocation ) return ( stream .resNewLocation ) {}
...
}
I use:
grpcurl -vv -H $token -import-path $proto_path -proto info.proto -d $request_message $server Info/LocationUpdates
and I get:
Resolved method descriptor:
rpc LocationUpdates ( stream .reqLocation ) returns ( stream .resNewLocation );
Request metadata to send:
authorization: Bearer ...
Response headers received:
(empty)
Response trailers received:
content-type: application/grpc
Sent 1 request and received 0 responses
In BloomRPC it works, but I prefer grpcurl from command line.
please try this:
grpcurl -vv -H $token -import-path $proto_path -proto info.proto -d # $server Info/LocationUpdates<<EOF
$data1
$data2
$data3
EOF
you will receive three responses from server.
Currently running tests for my REST API which:
takes an endpoint from the user
using that endpoint, grabs info from a server
sends it to another server to be translated
then proceeds to jsonify the data.
I've written a series of automated tests running and I cannot get one to pass - the test that actually identifies the content of the response. I've tried including several variations of what the test is expecting but I feel it's the actual implementation that's the issue. Here's the expected API response from the client request:
{ "name": "random_character", "description": "Translated description of requested character is output here" }
Here is the testing class inside my test_main.py:
class Test_functions(unittest.TestCase):
# checking if response of 200 is returned
def test_healthcheck_PokeAPI(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/")
status_code = response.status_code
self.assertEqual(status_code, 200)
# the status code should be a redirect i.e. 308; so I made a separate test for this
def test_healthcheck_ShakesprAPI(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/charizard")
self.assertEqual(response.status_code, 308)
def test_response_content(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/charizard")
self.assertEqual(response.content_type,
'application/json') <<<< this test is failing
def test_trans_shakespeare_response(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/charizard")
self.assertFalse(b"doth" in response.data)
Traceback:
AssertionError: 'text/html; charset=utf-8' != 'application/json' - text/html; charset=utf-8 + application/json
Any help would be greatly appreciated
I have the following curl command I need to sent to a web server using Matlab and webwrite using POST. My problem is that I always get a "Bad request" answer so my syntax must be wrong somehow. Does anybody have an idea how this curl command, sending the body could look like in Matlab using webwrite in a correct way ?
body=$(cat << EOF
{
"order": {
"units": "100",
"instrument": "EUR_USD",
"timeInForce": "FOK",
"type": "MARKET",
"positionFill": "DEFAULT"
}
}
EOF
)
curl \
-X POST \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <AUTHENTICATION TOKEN>" \
-d "$body" \
"https://api-fxtrade.oanda.com/v3/accounts/<ACCOUNT>/orders"
I have just asked a potentially similar question so this may not work first time. However I cannot test without knowing some login details so I can but hope this helps.
data_InputValues = struct ('units',100,'instrument','EUR_USD','timeInForce','FOK','type','MARKET','positionFill','DEFAULT');
MyBody = matlab.net.http.MessageBody(struct('order',data_InputValues));
MyHTTPOptions = matlab.net.http.HTTPOptions(); % use this to change the options if necessary (e.g. extend timeout)
Request = matlab.net.http.RequestMessage;
Request.Method = 'POST';
Request.Header = matlab.net.http.HeaderField('Content-Type','application/json','Authorization: Bearer',AUTHENTICATION TOKEN);
Request.Body = MyBody;
uri = matlab.net.URI('https://api-fxtrade.oanda.com/v3/accounts/<ACCOUNT>/orders');
[response a ~] = Request.send(uri,MyHTTPOptions);
The part I struggle with is generating the MyBody part (in your case this is parsing the order variable's sub-variables). If you get this to work I would be keen to know how! P.S. my question in case it helps: Matlab RESTful PUT Command - net.http - nesting body values
The correct format for the body is as follows:
body = struct('units',100,'instrument','EUR_USD','timeInForce','FOK',...
'type','MARKET','positionFill','DEFAULT');
As for the HTTP headers that you require you can specify them with weboptions when using webwrite.
The syntax for an additional header:
options = weboptions('KeyName','Name','KeyValue','Value')
Where Name and Value are the name of the header and its value respectively.
You must add the headers that you require in weboptions.
For the code you provided, the correct syntax would be as follows:
options = weboptions('MediaType','application/json',...
'KeyName','Authorization: Bearer','KeyValue','Token');
You can then perform the POST request at the URL of interest.
response = webwrite(url,body,options);
I am attempting to make RESTful POST request using the WifiESP library (https://github.com/bportaluri/WiFiEsp). I'm able to successfully make the request with curl, but consistently get an error using the Arduino and ESP. I suspect the problem is related to the manual formatting of the POST request the library requires, but I don't see anything wrong. Here my sanitized code:
if (client.connect(server, 80)) {
Serial.println("Connected to server");
// Make a HTTP request
String content = "{'JSON_key': 2.5}"; // some arbitrary JSON
client.println("POST /some/uri HTTP/1.1");
client.println("Host: http://things.ubidots.com");
client.println("Accept: */*");
client.println("Content-Length: " + sizeof(content));
client.println("Content-Type: application/json");
client.println();
client.println(content);
}
The error I get (via serial monitor) is this:
Connected to server
[WiFiEsp] Data packet send error (2)
[WiFiEsp] Failed to write to socket 3
[WiFiEsp] Disconnecting 3
My successful curl requests looks like this:
curl -X POST -H "Content-Type: application/json" -d 'Some JSON' http://things.ubidots.com/some/uri
After some experimentation, here is the solution to the multiple problems.
The JSON object was not correctly formatted. Single quotes were not accepted, so I needed to escape the double quotes.
The host does not need "http://" in a POST request; POST is a HTTP method.
The sizeof() method returns the size, in bytes, of the variable in memory rather than the length of the string. It needs to be replaced by .length().
Appending an integer to a string requires a cast.
This is the corrected code:
if (client.connect(server, 80)) {
Serial.println("Connected to server");
// Make the HTTP request
int value = 2.5; // an arbitrary value for testing
String content = "{\"JSON_key\": " + String(value) + "}";
client.println("POST /some/uri HTTP/1.1");
client.println("Host: things.ubidots.com");
client.println("Accept: */*");
client.println("Content-Length: " + String(content.length()));
client.println("Content-Type: application/json");
client.println();
client.println(content);
}
The code explained by Troy D is right and it's working .I think the error in posting the data to the server is due to this line
client.println("Content-Length: " + sizeof(content));
and the correct way is
client.println("Content-Length: " + String(content.length()));
Now coming to this error
Connected to server
[WiFiEsp] Data packet send error (2)
[WiFiEsp] Failed to write to socket 3
[WiFiEsp] Disconnecting 3
This is the error of library you can ignore it.
The problem with "Data packet send error (2)", "Failed to write to socket 3" and "Disconnecting 3" is not a problem within the WifiEsp library as far as I can see, believe it's more likely to be within the AT firmware. By default the http headers contain a "Connection: close" parameter which in normal cases should be correct. However with this bug the server will get disconnected before the reply is received on the client side and any response from the server will be identified as garbage data. Using the value "Connection: keep-alive" as a workaround will make it possible to receive the acceptance from the server in a proper way.
I'm running my Arduino + ESP8266-07 against a MVC based Web Api that I created on one of my servers and in the controllers Post-method I use a single string as return value, the value I return if everything is ok is simply one of the strings that WifiEsp keeps track of (It will still include the http status code in the response header that it returns)
public async Task<string> Post([FromBody]JObject payload)
{
//Code to handle the data received, in my case I log unit ip, macaddress, datetime and sensordata into a db with entity framework
return "SEND OK";
}
So in your Arduino code try following instead:
String PostHeader = "POST http://" + server + ":" + String(port) + "/api/values HTTP/1.1\r\n";
PostHeader += "Connection: keep-alive\r\n";
PostHeader += "Content-Type: application/json; charset=utf-8\r\n";
PostHeader += "Host: " + server + ":" + String(port) + "\r\n";
PostHeader += "Content-Length: " + String(jsonString.length()) + "\r\n\r\n";
PostHeader += jsonString;
client.connect(server.c_str(), port);
client.println(PostHeader);
client.stop();
In the file debug.h located in the library source code you could alter a define and get more output to your serial console. Open the file and change
#define _ESPLOGLEVEL_ 3
to
#define _ESPLOGLEVEL_ 4
Save the file and recompile/deploy your source code to your Arduino and you will get extensive information about all AT commands the library sends and what the library receives in return.