Sharepoint online rest api is returning xml instead of json

Question

I have the following code

 this.context.spHttpClient.get(
    `${this.absoluteUrl}/?$select=Title&`,
    this.config, {
        headers:this.getHeaders,
    })
  .then((response: SPHttpClientResponse) => {
    if (response.ok) {
      response.json().then((results) => { ...

Where I'm trying to find all list names of my Site, but I'm getting the following error

sp-webpart-workbench-assembly_es-es_3ccc282fed5f46c40407a659977d1250.js:1078 Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 2

My header is the following

private getHeaders = { 
"Method": "GET",
"Accept": "application/json;odata=verbose",
"odata-version": "",
};

and if I check network request header is sending the header. I've also checked the result via web and it is returning everything on XML

I'm clueless any idea why is Sharepoint returning xml instead of json?

Ganesh Sanap - MVP · Accepted Answer · 2019-05-09 17:27:46Z

3

Try something like this:

return this.context.spHttpClient.get(`${this.context.pageContext.web.absoluteUrl}/_api/web/lists?$select=Title`,
      SPHttpClient.configurations.v1,
      {
        headers: {
          'Accept': 'application/json;odata=verbose',
          'odata-version': ''
        }
      });
  })
  .then((response: SPHttpClientResponse): Promise<IListItem> => {
    return response.json();
  });

Here are some reference codes on how to use spHttpClient with SharePoint: GitHub reference.

answered May 9, 2019 at 17:27

Ganesh Sanap - MVP

47.4k22 gold badges32 silver badges64 bronze badges

It works, thanks!, what is the difference between using headers like that, or how I did? the code seems almost the same but mine didn't work

JoseCarlosPB
– JoseCarlosPB

2019-05-13 07:42:26 +00:00
Commented May 13, 2019 at 7:42
I did both, but my upvotes doesn't count yet because I don't have that privilege, sorry!

JoseCarlosPB
– JoseCarlosPB

2019-05-13 07:45:45 +00:00
Commented May 13, 2019 at 7:45

Add a comment |

Gautam Sheth · Accepted Answer · 2019-05-09 17:25:31Z

0

Looks like you are using it wrong.

It needs to be as below:

1) Add the below import statement:

import { SPHttpClient, ISPHttpClientOptions , SPHttpClientResponse} from '@microsoft/sp-http';

2) After that you can use the spHttpClient as below:

var httpClientOptions : ISPHttpClientOptions = {};

httpClientOptions.headers = {
    'Accept': 'application/json;odata=verbose',
    'odata-version': ''
};

this.context.spHttpClient.get(`${this.absoluteUrl}?$select=Title`,
SPHttpClient.configurations.v1,
httpClientOptions).then((response: SPHttpClientResponse) => {
  if (response.ok) {
    response.json().then((results) => {
      console.log(results);
    })
  }
});

answered May 9, 2019 at 17:25

Gautam Sheth

31.1k1 gold badge37 silver badges65 bronze badges

Tested this and it didn't work, I have the same poroblem because httpClientOptions.Headers are the same Headers I were trying to use and it still returns XML.

JoseCarlosPB
– JoseCarlosPB

2019-05-13 07:39:46 +00:00
Commented May 13, 2019 at 7:39

Add a comment |

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