After originally struggling to get a request and access token, I finally now get those from LinkedIn successfully. However, the only thing I want to be able to do is let users post links to their “shares”, and I have had no luck getting this to work.
After the user has signed in successfully I do the following:
share\_object = {
comment = "Testing out the LinkedIn Share API with JSON",
content = {
title = "Test post to LinkedIn",
submitted\_url = "http://www.somewebsite.com",
submitted\_image\_url = "http://www.somewebsite.com/image.png"
},
visibility = {
code = "anyone"
}
}
share\_object = json.encode(share\_object)
local params = {}
params[1] =
{
key = 'share',
value = share\_object
}
request\_response = oAuth.makeRequest("http://api.linkedin.com/v1/people/~/shares?format=json", params, consumer\_key, access\_token, consumer\_secret, access\_token\_secret, "POST")
I have printed out the consumer_key, access_token, consumer_secret and access_token_secret after they are received and they are all correct (i.e. they match the tokens and secrets when I log into my LinkedIn app).
This is the function that the “request_response = oAuth.makeRequest” calls from the oAuth class:
----------------------------------------------------------------------------------------
-- MAKE REQUEST
----------------------------------------------------------------------------------------
function makeRequest(url, body, consumer\_key, acc\_token, consumer\_secret, acc\_token\_secret, method)
local post\_data =
{
oauth\_consumer\_key = consumer\_key,
oauth\_timestamp = get\_timestamp(),
oauth\_version = '1.0',
oauth\_nonce = get\_nonce(),
oauth\_token = acc\_token,
oauth\_token\_secret = acc\_token\_secret,
oauth\_signature\_method = "HMAC-SHA1",
}
for i=1, #body do
post\_data[body[i].key] = body[i].value
end
local post\_data = oAuthSign(url, method, post\_data, consumer\_secret)
result = rawPostRequest(url, post\_data)
print(result)
return result
end -----------------------------------------------------------------------------------------
-- OAUTH SIGN
-----------------------------------------------------------------------------------------
--
function oAuthSign(url, method, args, consumer\_secret)
local token\_secret = args.oauth\_token\_secret or ""
args.oauth\_token\_secret = nil
local keys\_and\_values = {}
for key, val in pairs(args) do
table.insert(keys\_and\_values,
{
key = encode\_parameter(key),
val = encode\_parameter(val)
})
end
table.sort(keys\_and\_values, function(a,b)
if a.key \< b.key then
return true
elseif a.key \> b.key then
return false
else
return a.val \< b.val
end
end)
local key\_value\_pairs = {}
for \_, rec in pairs(keys\_and\_values) do
table.insert(key\_value\_pairs, rec.key .. "=" .. rec.val)
end
local query\_string\_except\_signature = table.concat(key\_value\_pairs, "&")
local sign\_base\_string = method .. '&' .. encode\_parameter(url) .. '&'
.. encode\_parameter(query\_string\_except\_signature)
local key = encode\_parameter(consumer\_secret) .. '&' .. encode\_parameter(token\_secret)
local hmac\_binary = sha1(sign\_base\_string, key, true)
local hmac\_b64 = mime.b64(hmac\_binary)
local query\_string = query\_string\_except\_signature .. '&oauth\_signature=' .. encode\_parameter(hmac\_b64)
signature = encode\_parameter(hmac\_b64)
local authRealm = "http://api.linkedin.com"
--store headers to use as http header "Authorization"
oauth\_headers = { ([[OAuth realm="%s"]]):format(authRealm or "") }
for k,v in pairs(args) do
if k:match("^oauth\_") then
table.insert(oauth\_headers, k .. "=\"" .. encode\_parameter(v) .. "\"")
end
end
table.insert(oauth\_headers, "oauth\_signature=\"" .. signature .. "\"")
oauth\_headers = table.concat(oauth\_headers, ", ")
if method == "GET" then
return url .. "?" .. query\_string
else
return query\_string
end
end
----------------------------------------------------------------------------------------
-- RAW POST REQUEST
----------------------------------------------------------------------------------------
function rawPostRequest(url, rawdata)
local r,c,h
local response = {}
r,c,h = http.request
{
url = url,
method = "POST",
headers =
{
["Authorization"] = oauth\_headers,
['x-li-format'] = "json",
["Content-Type"] = "application/json",
},
source = ltn12.source.string(rawdata),
sink = ltn12.sink.table(response)
}
return table.concat(response,"")
end The error message returned is:
Response: {
“errorCode”: 0,
“message”: “[unauthorized]. OAU:my_API _Key|my_OAuth_User_Token |*01|*01:1360586673:+ZAEOLZ+jckeUr26T4EES4sC+1g=”,
“requestId”: “HWN64K6G4R”,
“status”: 401,
“timestamp”: 1360586673371
}
(the “my_API _Key” and “my_OAuth_User_Token” fields have the actual data in the response).
I have no idea why it is unauthorized if I signed the request using all of the correct tokens and secrets.
We’re absolutely stuck now and this is the last thing we need to finish our app.
Is there anyone out there who can help? [import]uid: 84115 topic_id: 35791 reply_id: 335791[/import]
[import]uid: 84115 topic_id: 35791 reply_id: 142370[/import]