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How to solve the problem of third-party interface returning 403 in Node.js environment?
How to solve the problem of third-party interface returning 403 in Node.js environment?
Mar 31, 2025 pm 11:27 PM
Catching third-party API 403 errors under Node.js environment
When calling external APIs using Node.js, you often encounter headaches of 403 errors (access is prohibited). This is usually because the server restricts the source of the request. This article will provide several solutions to help you obtain data smoothly.
Problem description: Target API address: https://core-api.prod.blur.io/v1/prices . It can be accessed normally in the browser (regardless of whether the privacy mode is enabled or not), but using fetch in Node.js returns a 403 error.
Sample code:
let response = await fetch('https://core-api.prod.blur.io/v1/prices');
const data = await response.text();
console.log(data); // 403 Error
Since we cannot directly modify the target website settings, we need to find a solution on the Node.js side.
Solution:
-
Simulate browser request header: The browser request will carry a specific request header, which the server may use to identify the request source. By emulating these request headers in Node.js, the server can be tricked into thinking that the request comes from the browser.
Modified code:
let response = await fetch('https://core-api.prod.blur.io/v1/prices', { headers: { 'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36', 'accept': 'application/json', 'content-type': 'application/json', // Add authorization information if necessary 'authorization': 'Bearer your_access_token' } });The value of
authorizationfield needs to be adjusted according to the authentication mechanism of the API. -
By using JSONP: JSONP (JSON with Padding)<script>標簽發(fā)起請求，繞過同源策略限制，服務(wù)器通常不會對JSONP請求進行同樣的訪問限制。</script>
需要安裝
jsonp模塊：npm install jsonp代碼示例：
const jsonp = require('jsonp'); jsonp('https://core-api.prod.blur.io/v1/prices', null, (err, data) => { if (err) { console.error(err.message); } else { console.log(data); } });注意：JSONP只支持
GET請求。
通過以上方法，您可以嘗試解決Node.js環(huán)境下調(diào)用第三方API時遇到的403錯誤。 選擇哪種方法取決于API的具體要求和限制。 如果問題仍然存在，請檢查API文檔，確認是否需要其他設(shè)置或授權(quán)。
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