Mixing
How to put mongodb sessions in creachadair/jrpc2 Handlers
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
I want to build a microservice that uses jrpc2 and mongodb to manage small IoT devices. These are the libraries in question:
https://godoc.org/bitbucket.org/creachadair/jrpc2
https://godoc.org/github.com/globalsign/mgo
The problem is, being rather new to Golang in general, I'm not sure how to combine these things together. Here's the code I have:
func DeviceAdd(ctx context.Context) (map[string]string, error) {
m := make(map[string]string)
m["token"] = "0xdeadbeef"
return m, nil
}
func DeviceBootstrap(ctx context.Context, params map[string]string) (map[string]string, error) {
m := make(map[string]string)
m["entered_token"] = params["token"]
return m, nil
}
...
func NewServer() *jrpc2.Server {
assigner := jrpc2.MapAssigner{
"device_add": jrpc2.NewHandler(DeviceAdd),
"device_bootstrap": jrpc2.NewHandler(DeviceBootstrap),
"device_update": jrpc2.NewHandler(DeviceUpdate),
"device_get_status": jrpc2.NewHandler(DeviceGetStatus),
}
srv := jrpc2.NewServer(assigner, nil)
return srv
}
Basically, you write some basic functions that accept a context.Context or any other JSON-RPC params, and jrpc2.NewHandler(function) will attach them to the jrpc2.Server.
The problem is, I cannot change the function handler signatures to put a mgo.Session in there. Or should I make DeviceAdd/DeviceBootstrap methods of a struct, which has access to a mgo.Session?
According to another StackOverflow question, it seems I should make DeviceAdd/DeviceBootstrap methods of a struct that has an mgo.Session, but I'm really not sure if I understood it correctly, or if jrpc2.NewHandler will accept the newly converted methods, or if it's the right thing to do. Also, Golang's context.Context seems like the right place to put such a thing. Help!
mongodb go json-rpc
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
add a comment |
I want to build a microservice that uses jrpc2 and mongodb to manage small IoT devices. These are the libraries in question:
https://godoc.org/bitbucket.org/creachadair/jrpc2
https://godoc.org/github.com/globalsign/mgo
The problem is, being rather new to Golang in general, I'm not sure how to combine these things together. Here's the code I have:
func DeviceAdd(ctx context.Context) (map[string]string, error) {
m := make(map[string]string)
m["token"] = "0xdeadbeef"
return m, nil
}
func DeviceBootstrap(ctx context.Context, params map[string]string) (map[string]string, error) {
m := make(map[string]string)
m["entered_token"] = params["token"]
return m, nil
}
...
func NewServer() *jrpc2.Server {
assigner := jrpc2.MapAssigner{
"device_add": jrpc2.NewHandler(DeviceAdd),
"device_bootstrap": jrpc2.NewHandler(DeviceBootstrap),
"device_update": jrpc2.NewHandler(DeviceUpdate),
"device_get_status": jrpc2.NewHandler(DeviceGetStatus),
}
srv := jrpc2.NewServer(assigner, nil)
return srv
}
Basically, you write some basic functions that accept a context.Context or any other JSON-RPC params, and jrpc2.NewHandler(function) will attach them to the jrpc2.Server.
The problem is, I cannot change the function handler signatures to put a mgo.Session in there. Or should I make DeviceAdd/DeviceBootstrap methods of a struct, which has access to a mgo.Session?
According to another StackOverflow question, it seems I should make DeviceAdd/DeviceBootstrap methods of a struct that has an mgo.Session, but I'm really not sure if I understood it correctly, or if jrpc2.NewHandler will accept the newly converted methods, or if it's the right thing to do. Also, Golang's context.Context seems like the right place to put such a thing. Help!
mongodb go json-rpc
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
You could use a struct, you could use closures, you could useContext, it's really up to you. Personally I try to avoid Context values because they abandon compile-time type safety.
– Adrian
Jan 3 at 16:21
add a comment |
I want to build a microservice that uses jrpc2 and mongodb to manage small IoT devices. These are the libraries in question:
https://godoc.org/bitbucket.org/creachadair/jrpc2
https://godoc.org/github.com/globalsign/mgo
The problem is, being rather new to Golang in general, I'm not sure how to combine these things together. Here's the code I have:
func DeviceAdd(ctx context.Context) (map[string]string, error) {
m := make(map[string]string)
m["token"] = "0xdeadbeef"
return m, nil
}
func DeviceBootstrap(ctx context.Context, params map[string]string) (map[string]string, error) {
m := make(map[string]string)
m["entered_token"] = params["token"]
return m, nil
}
...
func NewServer() *jrpc2.Server {
assigner := jrpc2.MapAssigner{
"device_add": jrpc2.NewHandler(DeviceAdd),
"device_bootstrap": jrpc2.NewHandler(DeviceBootstrap),
"device_update": jrpc2.NewHandler(DeviceUpdate),
"device_get_status": jrpc2.NewHandler(DeviceGetStatus),
}
srv := jrpc2.NewServer(assigner, nil)
return srv
}
Basically, you write some basic functions that accept a context.Context or any other JSON-RPC params, and jrpc2.NewHandler(function) will attach them to the jrpc2.Server.
The problem is, I cannot change the function handler signatures to put a mgo.Session in there. Or should I make DeviceAdd/DeviceBootstrap methods of a struct, which has access to a mgo.Session?
According to another StackOverflow question, it seems I should make DeviceAdd/DeviceBootstrap methods of a struct that has an mgo.Session, but I'm really not sure if I understood it correctly, or if jrpc2.NewHandler will accept the newly converted methods, or if it's the right thing to do. Also, Golang's context.Context seems like the right place to put such a thing. Help!
mongodb go json-rpc
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
I want to build a microservice that uses jrpc2 and mongodb to manage small IoT devices. These are the libraries in question:
https://godoc.org/bitbucket.org/creachadair/jrpc2
https://godoc.org/github.com/globalsign/mgo
The problem is, being rather new to Golang in general, I'm not sure how to combine these things together. Here's the code I have:
func DeviceAdd(ctx context.Context) (map[string]string, error) {
m := make(map[string]string)
m["token"] = "0xdeadbeef"
return m, nil
}
func DeviceBootstrap(ctx context.Context, params map[string]string) (map[string]string, error) {
m := make(map[string]string)
m["entered_token"] = params["token"]
return m, nil
}
...
func NewServer() *jrpc2.Server {
assigner := jrpc2.MapAssigner{
"device_add": jrpc2.NewHandler(DeviceAdd),
"device_bootstrap": jrpc2.NewHandler(DeviceBootstrap),
"device_update": jrpc2.NewHandler(DeviceUpdate),
"device_get_status": jrpc2.NewHandler(DeviceGetStatus),
}
srv := jrpc2.NewServer(assigner, nil)
return srv
}
Basically, you write some basic functions that accept a context.Context or any other JSON-RPC params, and jrpc2.NewHandler(function) will attach them to the jrpc2.Server.
The problem is, I cannot change the function handler signatures to put a mgo.Session in there. Or should I make DeviceAdd/DeviceBootstrap methods of a struct, which has access to a mgo.Session?
According to another StackOverflow question, it seems I should make DeviceAdd/DeviceBootstrap methods of a struct that has an mgo.Session, but I'm really not sure if I understood it correctly, or if jrpc2.NewHandler will accept the newly converted methods, or if it's the right thing to do. Also, Golang's context.Context seems like the right place to put such a thing. Help!
mongodb go json-rpc
mongodb go json-rpc
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
asked Jan 3 at 15:56
randomshinichirandomshinichi
14919
14919
You could use a struct, you could use closures, you could useContext, it's really up to you. Personally I try to avoid Context values because they abandon compile-time type safety.
– Adrian
Jan 3 at 16:21
add a comment |
You could use a struct, you could use closures, you could useContext, it's really up to you. Personally I try to avoid Context values because they abandon compile-time type safety.
– Adrian
Jan 3 at 16:21
You could use a struct, you could use closures, you could use
Context, it's really up to you. Personally I try to avoid Context values because they abandon compile-time type safety.– Adrian
Jan 3 at 16:21
You could use a struct, you could use closures, you could use
Context, it's really up to you. Personally I try to avoid Context values because they abandon compile-time type safety.– Adrian
Jan 3 at 16:21
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54025725%2fhow-to-put-mongodb-sessions-in-creachadair-jrpc2-handlers%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54025725%2fhow-to-put-mongodb-sessions-in-creachadair-jrpc2-handlers%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
You could use a struct, you could use closures, you could use
Context, it's really up to you. Personally I try to avoid Context values because they abandon compile-time type safety.– Adrian
Jan 3 at 16:21