[GraphHopper] Routing with multi depots and depot priority

[Alain BUFERNE]

Hi,

I've been consulted for a project involving some couriers (one in a first
time) to make delivery to customers but with also several pick up on the
route because the goods are provided by several depots to the courier. We
have a databse with the different depots and the app will choose the depot
the closest to the customer concerned.
I'm a total newbie with such spatial and routing problems....

We would like to receive a list of customers address from a separate web
app, feed an server  app with this list of address and then process it to
get the coordinate from OSM and then propose a route to the courier.
One algorythm problem is there are  several depot whith priority for the
depot versus the customers who need good from such depot. The courier can't
deliver goods that he did'nt yet get.
Is there somebody who can give me some clue to process with this precedence
of passing to some depot to serve some customers.

Hoping my rough request are understandable,
Best regards
Alain
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