Call Api with special character in url

Question

I have tried call API From FE with API is: http://localhost/search?userName=...

get(endpoint: string, responseType = 'json', params: HttpParams = null): Observable<any> {
    let url = this.getHost() + endpoint;
    if (params?.toString()) {
      endpoint += `?${params.toString()}`;
    }
    const headers = this.getAuthHeaders(endpoint);
    const options = {
      headers: headers,
      responseType: responseType as 'json',
      params,
    };
}

And it also returns

You do not have the permission to perform this action. Error 1004 Provided nonce does not match computed nonce

When I try to send userName that has white space or a special character like ` in API And nonce in headers must match with rest framework simplify

This problem will only occur when the parameter contains spaces or strange characters like `

Dieter Rehbein · Accepted Answer · 2024-08-28 09:04:52Z

0

Please provide some code. How do you create the URL-string? Do you use the https://angular.dev/api/common/http/HttpParams or do you simply append the username to the URL-string (which does not work with special characters)?

You should prefer using the HttpParams, but you can use https://angular.dev/api/common/http/HttpUrlEncodingCodec as well.

answered Aug 28, 2024 at 9:04

Dieter Rehbein

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TCNJK Over a year ago

Thanks for your suggestion I used HttpParams but the error is still there. I have add provide some code for this question

Karan Shishoo · Accepted Answer · 2024-08-28 09:12:48Z

0

Since you are directly hitting a URI you are somewhat limited in what characters may exist in any data that you send. Generally speaking, the characters that you can use are as follows -

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&'()*+,;=

Any character that is not in this list is normally represented using an encoding in the form of %xx. For example a whitespace is represented by %20% and back-ticks "`" are represented by %60 so you would need to use such encodings to send the special characters. A list of the encodings can be found here - https://www.w3schools.com/tags/ref_urlencode.ASP

You can use the library urlib to endcode your string with this function- urllib.parse.urlencode (for python 3) and urlencode() (for python 2)

edited Aug 28, 2024 at 9:12

answered Aug 28, 2024 at 9:07

Karan Shishoo

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1 Comment

TCNJK Over a year ago

I think this is a problem from FE when trying to create AuthHeaders for call API,

TCNJK · Accepted Answer · 2024-08-29 03:57:12Z

0

Because HttpParams.toString() will encode special characters but when getNonce() in rest-framework-signature URL is not in encoded form

answered Aug 29, 2024 at 3:57

TCNJK

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Community Over a year ago

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