Refresh token error "response_type or grant_type is required"

API Q&A
#1

I am trying to refresh a token but keep getting “response_type or grant_type is required” error message and status code 400.

In docs there is no mention of response_type parameter so not sure what to enter and I do have grant_type:refresh_token defined as parameter.

My post url is :

https://api.infusionsoft.com/token?grant_type=refresh_token&refresh_token=mysecret-refresh-token

and my headers are defined as

Content-Type:application/x-www-form-urlencoded
Authorization:Basic A2o41234MzRoXmF1bmZ4a3FmdXgzb1234560V2g3NVFt123=
Host:api.infusionsoft.com

In both postman and my code I get error

{
“error”: “invalid_request”,
“error_description”: “response_type or grant_type is required”
}

#2

image
image.png815×626 26.1 KB

#3

IS, you really need to sort your documentation out as it is either incorrect or out of date but same effect - the info is wrong

Changing from parameters to supply values rather as body to post works.

#4

And, yes ‘params’ can be used in different contexts…

#5

Docs say there are three ways to do it.

FYI most here do not work for IS including me :wink:

#6

Understood and assumed. Just hoping someone from IS will look and take note.

I don’t see three ways to refresh tokens BTW.

#7

For those interested here is NodeJS code using axis to refresh token. Note that the required grant_type and refresh_token parameters are to be sent via body and not as query parameters in url.

function refreshAccessToken(token) {
  let url = 'https://api.infusionsoft.com/token'
  let authData = clientId + ':' + clientSecret

  /* global Buffer */
  let buff = Buffer.from(authData)

  let headers = {
    'Authorization': 'Basic ' + buff.toString('base64'),
    'Content-Type': 'application/x-www-form-urlencoded'    
  }
  
  const data = new URLSearchParams();
  data.append('grant_type', 'refresh_token');
  data.append('refresh_token', token);
  
  post(url, data, {headers: headers})
    .then((res) => {
      console.log('got token', res.data)
    })
    .catch((err) => {
      console.log('AXIOS Error: ', err)
    })
}