1MojoX::JSON::RPC::ClienUts(e3r)Contributed Perl DocumentMaotjiooXn::JSON::RPC::Client(3)
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NAME

6       MojoX::JSON::RPC::Client - JSON RPC client
7

SYNOPSIS

9           use MojoX::JSON::RPC::Client;
10
11           my $client = MojoX::JSON::RPC::Client->new;
12           my $url    = 'http://www.example.com/jsonrpc/API';
13           my $callobj = {
14               id      => 1,
15               method  => 'sum',
16               params  => [ 17, 25 ]
17           };
18
19           my $res = $client->call($url, $callobj);
20
21           if($res) {
22               if ($res->is_error) { # RPC ERROR
23                   print 'Error : ', $res->error_message;
24               }
25               else {
26                   print $res->result;
27               }
28           }
29           else {
30               my $tx_res = $client->tx->res; # Mojo::Message::Response object
31               print 'HTTP response '.$tx_res->code.' '.$tx_res->message;
32           }
33
34       Non-blocking:
35
36           $client->call($url, $callobj, sub {
37               # With callback
38               my $res = pop;
39
40               # ... process result ...
41
42               Mojo::IOLoop->stop;
43           });
44
45           Mojo::IOLoop->start;
46
47       Easy access:
48
49           my $proxy = $client->prepare($uri, ['sum', 'echo']);
50
51           print $proxy->sum(10, 23);
52

DESCRIPTION

54       A JSON-RPC client.
55

ATTRIBUTES

57       MojoX::JSON::RPC::Client implements the following attributes.
58
59   "id"
60       Id used for JSON-RPC requests. Used when no id is provided as request
61       parameter.
62
63   "ua"
64       Mojo::UserAgent object.
65
66   "json"
67       Mojo::JSON object for encoding and decoding.
68
69   "version"
70       JSON-RPC version. Defaults to 2.0.
71
72   "content_type"
73       Content type. Defaults to application/json.
74
75   "tx"
76       Mojo::Transaction object of last request.
77

METHODS

79       MojoX::JSON::RPC::Client inherits all methods from Mojo::Base and
80       implements the following new ones.
81
82   "new"
83       Creates new MojoX::JSON::RPC::Client object.
84
85           my $client = MojoX::JSON::RPC::Client->new;
86
87   "call"
88       Execute JSON-RPC call. Returns MojoX::JSON::RPC::CLient::ReturnObject
89       if RPC call is executed correctly.
90
91           my $client = MojoX::JSON::RPC::Client->new;
92           my $url    = 'http://www.example.com/jsonrpc/API';
93           my $callobj = {
94               id      => 1,
95               method  => 'sum',
96               params  => [ 17, 25 ]
97           };
98
99           my $res = $client->call($url, $callobj);
100           if($res) {
101               if ($res->is_error) { # RPC error
102                   print 'Error : ', $res->error_message;
103               }
104               else {
105                   print $res->result;
106               }
107           }
108           else {
109               my $tx_res = $client->tx->res; # Mojo::Message::Response object
110               print 'HTTP response '.$tx_res->code.' '.$tx_res->message;
111           }
112
113       Make non-blocking call:
114
115           $client->call($url, $callobj, sub {
116               # With callback
117               my $res = pop;
118
119               # ... process result ...
120
121               Mojo::IOLoop->stop;
122           });
123
124           Mojo::IOLoop->start;
125
126   "prepare"
127       Prepares a proxy object that allows RPC methods to be called more
128       easily.
129
130           my $proxy = $client->prepare($uri, ['sum', 'echo']);
131
132           my $res = $proxy->sum(1, 2);
133
134           print $proxy->echo("Echo this!");
135
136       Register services from multiple urls at once:
137
138           my $proxy = $client->prepare($uri1, 'sum', $uri2, [ 'echo', 'ping' ]);
139
140           my $res = $proxy->sum(1, 2);
141
142           print $proxy->echo("Echo this!");
143
144           my $ping_res = $proxy->ping;
145

"MojoX::JSON::RPC::CLient::ReturnObject"

147       This object is returned by "call".
148
149   "result"
150       RPC result.
151
152   "is_error"
153       Returns a boolean indicating whether an error code has been set.
154
155   "error_code"
156       RPC error code.
157
158   "error_message"
159       RPC error message.
160
161   "error_data"
162       RPC error data.
163

SEE ALSO

165       MojoX::JSON::RPC
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169perl v5.36.0                      2022-07-22       MojoX::JSON::RPC::Client(3)