Spotify API refresh token

Question

I am trying to use Spotify's API to get song details. My programming language is python and the code I am trying to execute is this:

def spotifysearch(searchterm):
  headers = {
    'Accept': 'application/json',
    'Content-Type': 'application/json',
    'Authorization': 'Bearer OAUTH TOKEN',
}
  params = (
    ('q', searchterm),
    ('type', 'track'),
    ('limit', '10'),
)
  
  response = requests.get('https://api.spotify.com/v1/search', headers=headers, params=params)
  a=response.json()
  return a

However, my OAUTH TOKEN expires after every hour and I can't just manually get a new token every hour. I couldn't understand how to get my refresh token automatically.

Please provide me answer in either python or on curl (Both are fine with me)

Answer 1

Your first step will be to record:

• when you got the token
• when the token will expire

You can use dataclasses for this. Dataclasses have a post_init func, which is executed after initialization. You should compute the expiry as a datetime there.

import dataclasses

@dataclasses.dataclass
class TToken:
    access_token: str
    refresh_token: str
    created: datetime.datetime
    expires: datetime.datetime

    def __init_post__(self, data):
        if data: # Not required
            self.access_token = data['access_token']
            self.created = datetime.datetime.utcnow()
            self.expires = self.created + datetime.timedelta(minutes=59)
            self.refresh_token = data['refresh_token']
    
    def is_expired(self):
        return datetime.datetime.utcnow() > self.expires

    def as_header(self):
        return {
            'Accept': 'application/json',
            'Content-Type': 'application/json',
            'Authorization': f'Bearer self.access_token',
        }
    

For your tokens.

BASE64_CID_CSEC = <base64 encoded clientid:clientsecret>

def token_get(authorization_code: str):
    data = {'form':{'grant_type': 'authorization_code',
            'code': authorization_code,
            'redirect_uri': <your redirect uri>},
            'header':{'Authorization': f'Basic {BASE64_CID_CSEC}'}}

    resp = requests.get('https://accounts.spotify.com/api/token', data=data['form'], headers=data['header'])
    return TToken(resp)

def token_refresh(refresh_token: str):
    data = {'form': {'grant_type': 'refresh_token', 'refresh_token': refresh_token},
            'header': {'Authorization': f'Basic {BASE64_CID_CSEC}'}}

    resp = requests.get('https://accounts.spotify.com/api/token', data=data['form'], headers=data['header'])
    return TToken(resp)

Finally

token = token_get(authorization_code)

def spotify_search(searchterm: str):
    if token.is_expired():
        token = token_refresh(token.refresh_token)
    
    params = (('q', searchterm),('type', 'track'),('limit', '10'))
  
    resp = requests.get('https://api.spotify.com/v1/search', headers=token.as_header(), params=params)
    return resp.json()