Calling ContentFragment API from Postman works. But same payload from AppBuilder action throws `code: ERR_INVALID_ARG_TYPE`

[sarav_prakash]

I am trying https://adobe-sites.redoc.ly/tag/Fragment-Management#operation/fragments/createFragment CF API to programmatically create content fragments from inside AppBuilder action. I first tried the swagger request from postman and verified the request works. Request looks like this 

curl --location 'https://author-*-*.adobeaemcloud.com/adobe/sites/cf/fragments' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer <hidden>' \
--data '{
    "title": "625875",
    "modelId": "L2NvbmYvc2d3cy9jb3JwL3NldHRpbmdzL2RhbS9jZm0vbW9kZWxzL3NhbHNpZnktZnJhZ21lbnQtbW9kZWw",
    "parentPath": "/content/dam/product-content",
    "fields": [{"name":"salsify:ageStatement","values":["Age Statement 625875"],"type":"text"},{"name":"salsify:brandStory","values":["Brand Story 625875"],"type":"text"},{"name":"salsify:tastingNotes","type":"text"}]
  }'

Next I hardcoded and generated exact request into an AppBuilder action and invoked it. The request keeps failing with error `{"code":"ERR_INVALID_ARG_TYPE"}`

Nothing useful in server log, I dont see any log in server error.log file. 

Have anyone tried and faced similar error? Any pointers whats missing can help me. thanks. 

[sarav_prakash · Accepted solution]

I was able to resolve. So earlier, I used Javascript fetch inside nodejs with async/await syntax. Somehow async await and fetch api was not working good inside AppBuilder Runtime action. 

I switched to axios and this time it works perfect. This is sample code I used and is working. 

const axios = require('axios');
let data = JSON.stringify({
  "title": "625875",
  "modelId": "L2NvbmYvc2d3cy9jb3JwL3NldHRpbmdzL2RhbS9jZm0vbW9kZWxzL3NhbHNpZnktZnJhZ21lbnQtbW9kZWw",
  "parentPath": "/content/dam/product-content",
  "fields": [
    {
      "name": "ageStatement",
      "values": [
        "Age Statement 625875"
      ],
      "type": "text"
    },
    {
      "name": "brandStory",
      "values": [
        "Brand Story 625875"
      ],
      "type": "text"
    },
    {
      "name": "tastingNotes",
      "type": "text"
    }
  ]
});

let config = {
  method: 'post',
  url: 'https://author-**-**.adobeaemcloud.com/adobe/sites/cf/fragments',
  headers: { 
    'Content-Type': 'application/json', 
    'Authorization': 'Basic **', 
  },
  data : data
};

axios.request(config)
.then((response) => {
  console.log(JSON.stringify(response.data));
})
.catch((error) => {
  console.log(error);
});

Here CF supports both BasicAuth and Bearer Token. I tested with both and they work.