1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
module;
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/json.hpp>
module routemon:rwgps$impl;
import :rwgps;
namespace beast = boost::beast;
namespace bhttp = beast::http;
namespace json = boost::json;
namespace routemon::rwgps {
export struct route_summary
{
std::int64_t id;
std::int64_t user_id;
std::string url;
std::string name;
std::string description;
};
struct pagination
{
std::size_t record_count;
std::size_t page_count;
std::size_t page_size;
std::optional<std::string> next_page_url;
};
struct get_routes_meta
{
pagination pagination;
};
struct get_routes_response
{
std::vector<route_summary> routes;
get_routes_meta meta;
};
auto tag_invoke(json::value_to_tag<route_summary> const&, json::value const& jv)
-> route_summary
{
return {
.id = json::value_to<std::int64_t>(jv.at("id")),
.user_id = json::value_to<std::int64_t>(jv.at("user_id")),
.url = json::value_to<std::string>(jv.at("url")),
.name = json::value_to<std::string>(jv.at("name")),
.description = json::value_to<std::string>(jv.at("description")),
};
}
auto tag_invoke(json::value_to_tag<pagination> const&, json::value const& jv)
-> pagination
{
return {
.record_count = json::value_to<std::size_t>(jv.at("record_count")),
.page_count = json::value_to<std::size_t>(jv.at("page_count")),
.page_size = json::value_to<std::size_t>(jv.at("page_size")),
.next_page_url =
json::value_to<std::optional<std::string>>(jv.at("next_page_url")),
};
}
auto tag_invoke(
json::value_to_tag<get_routes_meta> const&, json::value const& jv)
-> get_routes_meta
{
return {
.pagination = json::value_to<pagination>(jv.at("pagination")),
};
}
auto tag_invoke(
json::value_to_tag<get_routes_response> const&, json::value const& jv)
-> get_routes_response
{
return {
.routes = json::value_to<std::vector<route_summary>>(jv.at("routes")),
.meta = json::value_to<get_routes_meta>(jv.at("meta")),
};
}
auto json_value_to_get_routes_response(json::value const& jv)
-> get_routes_response
{
return json::value_to<get_routes_response>(jv);
}
constexpr std::string host = "ridewithgps.com";
// TODO: handle failure appropriately
auto client::get_routes_page(std::size_t page) -> get_routes_response
{
auto req = bhttp::request<bhttp::string_body>{
bhttp::verb::get,
std::format("/api/v1/routes.json?page_size=200?page={}", page),
11, // HTTP 1.1
};
req.set(bhttp::field::host, host);
req.set("x-rwgps-api-key", api_key_);
req.set("x-rwgps-auth-token", auth_token_);
auto rsp = hc_.do_request(req);
auto p = json::stream_parser{};
for (auto const frag : rsp.body().cdata())
p.write(static_cast<char const*>(frag.data()), frag.size());
assert(p.done());
return json_value_to_get_routes_response(p.release());
}
client::client(
net::io_context& ioc, log::logger const& l, std::string api_key,
std::string auth_token)
: l_{l.sub("rwgps-client")}, hc_{ioc}, api_key_{std::move(api_key)},
auth_token_{std::move(auth_token)}
{
}
auto client::get_all_routes() -> std::vector<route_summary>
{
// TODO: make sure that there are no duplicates here.
// What does RWGPS sort on, by default?
// Consider using an associative container instead of a vector.
auto record_count = 0uz;
auto current_page = 0uz;
auto routes = std::vector<route_summary>{};
while (true)
{
auto rsp = get_routes_page(current_page);
if (rsp.meta.pagination.next_page_url)
l_.debug("Next page URL: {}", *rsp.meta.pagination.next_page_url);
routes.append_range(rsp.routes);
if (rsp.meta.pagination.record_count > 0)
record_count = rsp.meta.pagination.record_count;
if (rsp.routes.empty() || routes.size() >= record_count)
{
break;
}
}
return routes;
}
} // namespace routemon::rwgps
|
