add price and graph dynamic update

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2022 Coinbase Global, Inc.
+   Copyright 2022-present Coinbase Global, Inc.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.md

@@ -3,7 +3,7 @@
 This is a single page trading application built for Coinbase Prime using Dash, an open source framework for building Python data apps.  
 
 All scripts are written in Python and tested with version 3.8.9.
-![figure](assets/app.png)
+> ![figure](assets/app.png)
 ## Installation
 
 Simply clone the repo from your terminal window with the below command.

app.py

@@ -1,4 +1,4 @@
-# Copyright 2022 Coinbase Global, Inc.
+# Copyright 2022-present Coinbase Global, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

callback_graph.py

@@ -1,4 +1,4 @@
-# Copyright 2022 Coinbase Global, Inc.
+# Copyright 2022-present Coinbase Global, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -35,13 +35,12 @@ def create_dataframe(parse):
     )
     df = df.loc[::-1].reset_index(drop=True)
     df['diff'] = df['price_close'] - df['price_open']
-    df['rsi'] = momentum.rsi(df['price_close'], window=14, fillna=False)
     df.loc[df['diff'] >= 0, 'color'] = 'green'
     df.loc[df['diff'] < 0, 'color'] = 'red'
     df['timestamp'] = pd.to_datetime(df['timestamp'], unit='s')
-    df['rsi'] = momentum.rsi(df['price_close'], window=14, fillna=False)
     df['MA20'] = df['price_close'].rolling(window=20).mean()
     df['MA7'] = df['price_close'].rolling(window=7).mean()
+    df['rsi'] = momentum.rsi(df['price_close'], window=14, fillna=False)
     return df
 
 
@@ -151,8 +150,9 @@ def register_graph(app):
         Output('product-chart', 'figure'),
         Input('product-switcher', 'value'),
         Input('gran-switcher', 'value'),
+        Input('timer', 'n_intervals'),
     )
-    def update_output(product_id_selection, granularity_selection):
+    def update_output(product_id_selection, granularity_selection, n_intervals):
         """updates Plotly candlestick chart on UI product and granularity inputs"""
         url = f'https://api.exchange.coinbase.com/products/{product_id_selection}/candles?granularity={str(granularity_selection)}'
         headers = {'Accept': 'application/json'}

callback_price.py

@@ -1,4 +1,4 @@
-# Copyright 2022 Coinbase Global, Inc.
+# Copyright 2022-present Coinbase Global, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -21,8 +21,10 @@ def register_price(app):
 
     @app.callback(
         Output('price-ref', 'children'),
-        Input('product-switcher', 'value'))
-    def update_price(product_id_selection):
+        Input('product-switcher', 'value'),
+        Input('timer', 'n_intervals'),
+    )
+    def update_price(product_id_selection,n_intervals):
         """calls Exchange Get Product Ticker endpoint for price data"""
         denomination = product_id_selection.split('-')[1]
 

layout.py

@@ -1,4 +1,4 @@
-# Copyright 2022 Coinbase Global, Inc.
+# Copyright 2022-present Coinbase Global, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -65,6 +65,8 @@
         ),
         html.Button('Submit', id='submit-button', n_clicks=0),
         html.Div(id='buy-sell-response', style={'padding-top': 10}),
+        dcc.Interval(id='timer', interval=10000),
+
     ],
     style={'padding': 30, 'flex': 1, 'font-family': 'Inter'},
 )

prime_api.py

@@ -1,4 +1,4 @@
-# Copyright 2022 Coinbase Global, Inc.
+# Copyright 2022-present Coinbase Global, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

requirements.txt

@@ -1,4 +1,4 @@
-requests==2.27.1
+requests==2.31.0
 dash==2.6.2
 ta==0.10.2
 pandas==1.5.0