yonoss opened a new issue, #500:
URL: https://github.com/apache/cordova/issues/500
In Google Chrome for example, EventSource and/or fetch are getting the
packages from a SseEmitter endpoint, one by one, so that I can get the ChatGPT
tokens generation effect.
But in my Cordova app, in both Android and iOS, the tokens generation effect
is not possible, as EventSource and fetch calls, are buffering the backend
response, delivering the text to the javascript code in a single push, after
the server stopped emitting.
Any idea why this behavior in Cordova? Is it possible to get the same tokens
generation effect in Cordova without using a websocket connection?
JS code for EventSource approach:
```
function handleGptSuggestCallEventSource(params, target) {
let eventSource = mwSuggestEventSource(params)
eventSource.onmessage = function(event) {
if (event.data.includes(FINAL_MESSAGE)) {
eventSource.close(); // Stop the EventSource
return;
} else {
let formattedText = event.data.replace(/\\n/g, '<br>');
formattedText = formattedText.replace(/\n/g, '<br>');
formattedText = formattedText.replace(/ /g, ' ');
updateTargetMessage(formattedText, target);
}
};
eventSource.onerror = function(err) {
eventSource.close();
};
}
function mwSuggestEventSource(params) {
return callGPTEventSource(GPT_SUGGEST_URL.format(params));
}
function callGPTEventSource(url) {
try {
return new EventSource(getFullURL(url));
} catch (e) {
showToastError(getStr(e));
}
}
```
Backed java code:
```
public SseEmitter callApiAsync(HttpRequest request) {
SseEmitter emitter = new SseEmitter();
executorService.execute(() -> {
try {
client.sendAsync(request,
HttpResponse.BodyHandlers.ofInputStream())
.thenAccept(response -> {
try (InputStream inputStream = response.body()) {
BufferedReader reader = new BufferedReader(new
InputStreamReader(inputStream));
String line;
Matcher matcher;
while ((line = reader.readLine()) != null) {
matcher = GPT_TEXT_PATTERN.matcher(line);
if (matcher.find()) {
line = matcher.group(1);
} else {
line = "";
}
line = line.replace(" ", EMPTRY_SPACE);
emitter.send(SseEmitter.event().data(line)); //
Stream each line to client
}
emitter.send(FINAL_MESSAGE);
emitter.complete(); // Complete the emitter after
finishing reading
} catch (IOException e) {
emitter.completeWithError(e);
}
});
} catch (Exception e) {
emitter.completeWithError(e);
}
});
return emitter;
}
```
cordova --version
12.0.0 (cordova-lib@12.0.1)
cordova plugin list
cordova-plugin-android-permissions 1.1.5 "Permissions"
cordova-plugin-geolocation 4.1.0 "Geolocation"
cordova-plugin-inappbrowser 6.0.0 "InAppBrowser"
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