Arduino Giga failing to interact with ChatGPT API

[robust owl]

Hey I'm getting error code 400 when trying to use an Arduino to send a web request to ChatGPT
Here's the code ```cpp

include <WiFi.h>

char * ssid = "";
char * password = "";
char * key = "Bearer xxxxx"; //deleted all the info for ssid, pass & key because privacy -- pretend it's filled in

void setup() {
Serial.begin(9600);
if (!Serial) { delay(5000); }
Serial.print("Connecting to WiFi\n");
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) { continue; }
Serial.print("Connected!\n");
WiFiSSLClient client;
Serial.print("Connecting to OpenAI\n");
if (!client.connectSSL("api.openai.com", 443)) {
Serial.print("Connection failed!");
return;
}
Serial.print("Connected!\n");
String payload = "{
"model": "gpt-3.5-turbo",
"messages": [{
"role": "user",
"content": "Why is grass green?"
}]
}";
client.println("POST /v1/chat/completions HTTPS/1.0");
client.println("Host: api.openai.com");
client.println("Content-Type: application/json");
client.print("Content-Length: ");
client.println(payload.length());
client.print("Authorization: ");
client.println(key);
client.println();//separate data from headers
client.println(payload);
while (client.available()) {
char c = client.read();
Serial.print(c);
}
if (!client.connected()) {
Serial.print("disconnected\n");
client.stop();
}
}

void loop() {
}

this is the error code (pic related)

And here's the web request working as intended (pic related) so I know my overall request is okay, just the formatting or something with Arduino is what's wrong

[teal vault]

Your payload is badly formatted, use \ only before " not for new line

[robust owl]

I don't see why making it multiple lines instead of 1 would make a difference

[teal vault]

That's not what I mean, you do that in console but not for a request

[robust owl]

It's a string

you put a \ so you can do a new line

[teal vault]

Use only \ before " not for escaping new line

[robust owl]

    String payload = "{\
\"model\": \"gpt-3.5-turbo\",\
\"messages\": [{\
\"role\": \"user\",\
\"content\": \"Why is grass green?\"\
}]\
}";``` is the exact same thing as 

String payload = "{\

"model": "gpt-3.5-turbo","messages": [{"role": "user","content": "Why is grass green?"}]}";```

[teal vault]

Yes and it's wrong

[robust owl]

the difference is it's 1 line in the editor vs multiple lines in the editor

it literally makes no functional difference

[teal vault]

Both wrong

    String payload = "{
\"model\": \"gpt-3.5-turbo\",
\"messages\": [{
\"role\": \"user\",
\"content\": \"Why is grass green?\"
}]
}";

That's a JSON string, it's will be parsed by the server

If your JSON is invalid, you have this error

It's better to work with object and transform it to JSON when sending it to the server

Instead of escaping yourself

[robust owl]

you can't just start a new line in quotes like that

you need the backslash

this is C++ come on

[teal vault]

Ok man, good luck

[flint flume]

@teal vault just wanted to say that you were right here, in case anyone else is looking at this in the future with the same issues