Forum Discussion

adam3039's avatar
adam3039
New Member
9 years ago
Solved

Pull data from RESTful API with token authentication

Is there any way to retrieve a token (providing a user/pass/grant-type as a urlencodedform) from a RESTful API, and then provide that token with subsequent API calls? We have a large RESTful API that...
  • Anonymous's avatar
    Anonymous
    9 years ago

    Hi adam3039,

     

    According to your description, you want to get the token of restful api, right?
    You can write a power query function to get token,then use this function as the parameter to call the api.

     

    For detail information about get token, you can refer below article:
    REST API Token-based Authentication

     

    Call API Sample:

     

    let
    CallAPi= (
        URI as text,
        Username as text,
        Token as text,
        Paremeter as table,
        optional Timeout as number
    ) as any => 
let
    WebTimeout = if Timeout = null then #duration(0,0,0,100) else #duration(0,0,0,Timeout) , 

    WebServiceContent = function(Paremeter),//format parameters to content

    WebResponse = Web.Contents(Username&":"&Token&URI, 
        [Content = Text.ToBinary(WebServiceContent),
         Headers = [Authorization="xxxxx",
                    #"Content-Type"="application/json",
                    Accept="application/json"],
         Timeout = WebTimeout]),
    
    output = formatfunction(WebResponse) //format the response
in
    output 
in
    CallAPi

     

     

    Regards,
    Xiaoxin Sheng

Anonymous's avatar
Anonymous
Not applicable
9 years ago

Hi adam3039,

 

According to your description, you want to get the token of restful api, right?
You can write a power query function to get token,then use this function as the parameter to call the api.

 

For detail information about get token, you can refer below article:
REST API Token-based Authentication

 

Call API Sample:

 

let
    CallAPi= (
        URI as text,
        Username as text,
        Token as text,
        Paremeter as table,
        optional Timeout as number
    ) as any => 
let
    WebTimeout = if Timeout = null then #duration(0,0,0,100) else #duration(0,0,0,Timeout) , 

    WebServiceContent = function(Paremeter),//format parameters to content

    WebResponse = Web.Contents(Username&":"&Token&URI, 
        [Content = Text.ToBinary(WebServiceContent),
         Headers = [Authorization="xxxxx",
                    #"Content-Type"="application/json",
                    Accept="application/json"],
         Timeout = WebTimeout]),
    
    output = formatfunction(WebResponse) //format the response
in
    output 
in
    CallAPi

 

 

Regards,
Xiaoxin Sheng

Anonymous's avatar
Anonymous
Not applicable
8 years ago

Anonymous,

Could you explain this bit clearly...like how to apply the function as a parameter etc?

 

let
    CallAPi= (
        URI as text,
        Username as text,
        Token as text,
        Paremeter as table,
        optional Timeout as number
    ) as any => 
let
    WebTimeout = if Timeout = null then #duration(0,0,0,100) else #duration(0,0,0,Timeout) , 

    WebServiceContent = function(Paremeter),//format parameters to content//Which parameter?

    WebResponse = Web.Contents(Username&":"&Token&URI, 
        [Content = Text.ToBinary(WebServiceContent),
         Headers = [Authorization="xxxxx",
                    #"Content-Type"="application/json",
                    Accept="application/json"],
         Timeout = WebTimeout]),
    
    output = formatfunction(WebResponse) //format the response //how to format?
in
    output 
in
    CallAPi

Thanks you.

  • Breticious's avatar
    Breticious
    Icon for Helper I rankHelper I
    8 years ago

    Does the key change upon each refresh of the data or does it remain static for every session?

    • Anonymous's avatar
      Anonymous
      Not applicable
      8 years ago

      hi Breticious,

       

      Thank you for the reply,ofcourse the key will change every time(Whenever the user login new token will generate)

      • Breticious's avatar
        Breticious
        Icon for Helper I rankHelper I
        8 years ago

        Unfortunately, your situation is likely to differ greatly from the rest of our situations since most API creators do not follow the same protocols as others. This inconsistency is good in the sense of bots having a harder time breaking through but in turn makes it very difficult for new coders to modify something they don't fully follow.

         

        You need to describe your scenario much more deeply.

         

        1. How do you get authentication code?

        2. Do you have a code given to you by the vendor that must be passed through to get the authentication code?

        3. Once you have the code, where do you put it when passing it through to the GET web address? The header, the body, etc.?

        4. If it goes in the header, what is the value named?

        5. What is the content format of your request?

        6. What is the request call to the GET address?

         

        I cannot just give you my code's scenario because I can almost guarantee that it is NOT going to fit your scenario just as the author of this post's scenario did not fit mine. The modifications I made to my code does not resemble the code above whatsoever now.