Pintrest API invalid_grant 401

Question

我正在尝试使用api从pinterest获取信息。我可以获取代码和身份验证令牌以交换该代码。但是，当我尝试使用该身份验证令牌获取任何数据时，甚至我尝试使用相同的代码再次获取身份验证令牌时，都会显示“ invalid_grant”。我的获取用户数据的代码

@login_required(login_url="/accounts/login/")
def modify_players(request):
    if request.user.team is not None:
        PlayerFormSet = modelformset_factory(Player, form=PlayerForm, extra=1, can_delete=True,)

        if request.method == "POST":
            player_formset = PlayerFormSet(request.POST, request.FILES, queryset=Player.objects.all().filter(team=request.user.team),)
            for player_form in player_formset:
                if player_form.is_valid():
                    player = player_form.save(commit=False)
                    player.team = request.user.team
            if player_formset.is_valid():
                player_formset.save()

            return redirect('team_area:modify_players')
        else:
            player_formset = PlayerFormSet(queryset=Player.objects.all().filter(team=request.user.team))
        return render(request, 'team_area/modify_players.html', {'player_formset': player_formset})
    else:
        return redirect('team_area:home')