URL Encoding in http.NewRequest and LinkedIn API Field Selectors

[Paul van Brouwershaven]

Hi,

I'm running into the following issue when using the LinkedIn API from Go:

LinkedIn is using "(" and ")" to request specific fields from the API, see:

https://developer.linkedin.com/documents/field-selectors

https://developer.linkedin.com/documents/understanding-field-selectors

When I use the url listed in the example:

http.NewRequest("GET", "https://api.linkedin.com/v1/companies/1337:(id,website-url,locations)", nil)

I get the following error message:

{

  "errorCode": 0,

  "message": "[invalid.property.name]. Couldn't find property with name {:%28id,website-url,locations%29} in resource of type {Company}",

  "requestId": "1COW9HZ53U",

  "status": 404,

  "timestamp": 1364979752628

}

Go is automatically escaping the URL where LinkedIn does not want to this part of the URL escaped:

"When URL-encoding your resource URLs, ensure that the parenthesis used in selectors remain unescaped."

Now I could write a raw http client but I was hoping that there is an easier way to solve this issue?

Thanks,

Paul

[Volker Dobler]

You could try to set the Opaque field of Request.URL to

"/v1/companies/1337:(id,url,loc)" after constructing the

request but before Do- or Get-ing with this request.

(Completely untried suggestion).

V.

[Brad Fitzpatrick]

Yes.  You'll want to set Opaque on your fields.  You can write a new function to wrap NewRequest and modify the Opaque field afterwards.  See the docs below http://tip.golang.org/pkg/net/url/#URL

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[Paul van Brouwershaven]

Thanks, setting the opaque value for the url solved my problem!

httpReq, err := http.NewRequest("GET", "https://api.linkedin.com"+ requestUrl +"?"+ qs.Encode(), nil)

httpReq.URL.Opaque = requestUrl

httpReq.Header.Add("x-li-format", "json")

resp, err := client.Do(httpReq)