Request parameters exceeded - Route distance too long

openrouteservice directions
1

I am trying to request routes from 100 coordinates of client addresses (held in a csv file) to a single coordinate (a foodbank site)

import csv
import openrouteservice
client = openrouteservice.Client(key='myAPIkey')

with open ('ClientCoordinates.csv' , 'r') as csv_coords:
    csv_reader = csv.reader(csv_coords) 
    EXTRA_COORD = (53.464774, 2.23179)
    new_csv_coords = []
    routelist = []
    for line in csv_reader:
         new_csv_coords.append(((float(line[0]), float(line[1])), EXTRA_COORD))
        
         coords = (new_csv_coords)
         print(coords[0]) 
         routes = client.directions(coords[0])

         print(routes)

This returns the error - Request parameters exceed the server configuration limits. The approximated route distance must not be greater than 6000000.0 meters.

My API token says I can perform 2000 requests, and I am only requesting 100 so I’m not sure what is going on. Thanks in advance for any help.

2

The error says that your requested route will be at least 6000km long and that exceeds the configuration limit (for a single request). Are your coordinates this far apart?

3

No, they are all within Manchester. What I think could be happening is that my code sends a request for a whole batch of 100 routes at once, rather than one by one - therefore exceeding the limit.

4

I am therefore trying to pass one coordinate pair at a time through the request, but I’m not sure how to change my code to do so.

5

No, you’re always sending the same request as far as I can see.

This should work better:

import csv
import openrouteservice
client = openrouteservice.Client(key='myAPIkey')

with open ('ClientCoordinates.csv' , 'r') as csv_coords:
    csv_reader = csv.reader(csv_coords) 
    EXTRA_COORD = [53.464774, 2.23179]
    for line in csv_reader:
         coords = [float(line[0]), float(line[1]]
         coords.extend(EXTRA_COORD)
         routes = client.directions(coords)

         print(routes)

Also, you’re using [lat, lon], ORS expects [lon, lat]. That’s def a bigger issue, even though it shouldn’t give you that error.

6

I changed the data to lon,lat format, thanks. For this example I get a few syntax errors - I should have mentioned I am writing in python3/ spyder.

7

Forgot to mention: that’s of course not tested. There’s at least one syntax error in there. IDE and Py version are not so relevant actually.