How to add metadata or header ?

[Abhishek Verma]

[Walter Schulze]

https://github.com/gogo/letmegrpc/blob/master/form/form_test.go

[Nace Sc]

Hi @awalterschulze , I read the CreateCustom in form.go,and still have some questions. When we setup context metadata/header in grpc context , we will not define these kind of fields explicitly.

In my way, I will prefer to add an additional field(say as context),this field name and value is also customized, the fake code will look like this:

	contextString := req.FormValue("context")
	contextStringMap := make(map[string]string)
	if len(contextString) > 0 {
		err := encoding_json.Unmarshal([]byte(contextString), &contextStringMap)
		if err != nil {
			if err != io.EOF {
				w.Write([]byte("<div class=\"alert alert-danger\" role=\"alert\">" + err.Error() + "</div>"))
				return
			}
			w.Write([]byte("<div class=\"alert alert-danger\" role=\"alert\">" + err.Error() + "</div>"))
		}
	}
	w.Write([]byte(FormClient_RPCXXXXXX))
	if !someValue {
		w.Write([]byte(Footer))
		return
	}
	for metaKey, metaValue := range contextStringMap {
              // do some meta match here
        }

[Walter Schulze]

I haven’t used grpc in a few years, so I fear I am missing some context ;) sorry that is a bad joke, but I am struggling to know which problem you are trying to solve

…

On Thu, 20 Dec 2018 at 08:47, scnace ***@***.***> wrote: Hi @awalterschulze <https://github.com/awalterschulze> , I read the CreateCustom in form.go,and still have some questions. When we setup context metadata/header in grpc context , we will not define these kind of fields explicitly. In my way, I will prefer to add an additional field(say as context),this field name and value is also customized, the fake code will look like this: contextString := req.FormValue("context") contextStringMap := make(map[string]string) if len(contextString) > 0 { err := encoding_json.Unmarshal([]byte(contextString), &contextStringMap) if err != nil { if err != io.EOF { w.Write([]byte("<div class=\"alert alert-danger\" role=\"alert\">" + err.Error() + "</div>")) return } w.Write([]byte("<div class=\"alert alert-danger\" role=\"alert\">" + err.Error() + "</div>")) } } w.Write([]byte(FormClient_RPCXXXXXX)) if !someValue { w.Write([]byte(Footer)) return } for metaKey, metaValue := range contextStringMap { // do some meta match here } — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvsLV0k2--CRVB8OX4E6RaZgHm6M7J7ks5u6zKJgaJpZM4Waya4> .

[Nace Sc]

Haha , you can check the grpc-go's oauth example for the grpc context metadata.

[Walter Schulze]

What do you want to do with context in letmegrpc?

…

On Fri, 21 Dec 2018 at 04:57, scnace ***@***.***> wrote: Haha , you can check the grpc-go's oauth example <https://github.com/grpc/grpc-go/blob/master/examples/oauth/server/main.go#L96> for the grpc context metadata. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvsLaBcFlRsx1jw7IgxyaruMMjpKrl3ks5u7E4MgaJpZM4Waya4> .

[Nace Sc]

we will use this kind of data for auth and trace and other middleware operations

[Walter Schulze]

So do you want to print it out as a response or read in as input or programmatically provide it?

…

On Fri, 21 Dec 2018 at 13:41, scnace ***@***.***> wrote: we will use this kind of data for auth and trace and other middleware operations — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvsLftKYJMdSoSTeKCJFjzO5iZvnYOjks5u7Mj5gaJpZM4Waya4> .

[Nace Sc]

Read it as input

[Walter Schulze]

Aha ok so you want another map from string to x at the top of the web form?

…

On Sat, 22 Dec 2018 at 17:45, scnace ***@***.***> wrote: Read it as input — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvsLYIgw9nL8iEAnnGkv1hyUypvryR0ks5u7lOqgaJpZM4Waya4> .

[Nace Sc]

yep, so I fork another letmegrpc to our private repo, and will do some special edition XD

[Walter Schulze]

Hmmm yeah or you show me how you make it work and contend to take over letmegrpc :) ?

…

On Sat, 22 Dec 2018 at 21:02, scnace ***@***.***> wrote: yep, so I fork another letmegrpc to our private repo, and will do some special edition XD — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvsLSU8Q4iQtTwI4buT_5__S6QeaKFDks5u7oGngaJpZM4Waya4> .

[Nace Sc]

aha still WIP