I am trying to send a form data through flutter to my flask webserver but the flask server is not receiving the request. Below is my flutter code

 class FetchData {
  Future<Price> getData(
    int area,
    int bedrooms,
    double? psf,
    int feature_score,
    double? locationPremium,
  ) async {
    const uri = 'http://127.0.0.1:5000/predict';
    var map = <String, dynamic>{};
    map['area'] = area;
    map['bedrooms'] = bedrooms;
    map['psf'] = psf;
    map['feature_score'] = feature_score;
    map['location_premium'] = locationPremium;
    map['log_premium'] = log(locationPremium!);
    http.Response response = await http.post(Uri.parse(uri), body: map);
    if (response.statusCode == 200) {
      return Price.fromJson(jsonDecode(response.body));
    } else {
      throw Exception('Failed to load post');
    }
  }
}

And below is my app.py code

from flask import Flask, render_template, request, redirect, url_for, flash, jsonify
import pickle
import numpy as np
model=pickle.load(open('model1.pkl','rb'))
app = Flask(__name__)
@app.route('/')
def home():
    return "Hello World"
@app.route('/predict',methods=['POST'])    
def predictor():
    area=int(request.form['area'])
    bedrooms=int(request.form['bedrooms'])
    psf=float(request.form['psf'])
    feature_score=int(request.form['feature_score'])
    LocationPremium=float(request.form['LocationPremium'])
    LogPremium=float(request.form['LogPremium'])
    query=np.array([[area,bedrooms,psf,feature_score,LocationPremium,LogPremium]])
    result= model.predict(query)[0]
    return jsonify({'prediction':str(result)}) 
  
                     
if __name__ == '__main__':
    app.run(debug=True)
    app.run(host='0.0.0.0', port=5000)

I have tried sending the request through postman and the server is receiving the POST request

CodePudding user response：

You need to add headers to your post request.

Future  post(   Uri url, {   Map ? headers,   Object? body,   Encoding? encoding, })