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Troubleshooting of curl errors: Difference between revisions
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→How to resolve 400 Bad Request Errors: UTF-8 Character Encoding Issues
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* Instead of relying on the cURL command, switching to a JavaScript-based crawler is recommended as a solution to this problem <ref>[https://www.zenrows.com/blog/cloudflare-error-1010#how-to-avoid Cloudflare Error 1010: What Is It and How to Avoid - ZenRows]</ref>. | * Instead of relying on the cURL command, switching to a JavaScript-based crawler is recommended as a solution to this problem <ref>[https://www.zenrows.com/blog/cloudflare-error-1010#how-to-avoid Cloudflare Error 1010: What Is It and How to Avoid - ZenRows]</ref>. | ||
=== How to resolve cURL Bad Range in URL Error === | |||
'''Problem Analysis:''' | |||
When executing a cURL command with square brackets in the URL, you might encounter this error message: | |||
<pre> | |||
curl: (3) bad range in URL position 38: | |||
https://example.com/api/news?q[post_category_id_eq]=&tag_id=176&page=2 | |||
</pre> | |||
'''Solutions''' | |||
To resolve this error, append the {{kbd | key=<nowiki>--globoff</nowiki>}} flag to your cURL command: | |||
Example: | |||
<pre> | |||
curl --globoff "https://example.com/api/news?q[post_category_id_eq]=&tag_id=176&page=2" -o output.html | |||
</pre> | |||
'''What does --globoff do?''' | |||
The {{kbd | key=<nowiki>--globoff</nowiki>}} (or {{kbd | key=<nowiki>-g</nowiki>}}) parameter disables cURL's URL globbing feature. | |||
By default, cURL interprets certain characters as wildcards for batch downloading: | |||
* Square brackets {{kbd | key=<nowiki>[]</nowiki>}} - Character ranges or lists | |||
* Curly braces {{kbd | key=<nowiki>{}</nowiki>}} - String sequences | |||
When your URL contains these characters as literal query parameters (common in Rails and similar frameworks), cURL misinterprets them as globbing patterns. The {{kbd | key=<nowiki>--globoff</nowiki>}} flag tells cURL to treat all characters literally instead of parsing them as wildcards. | |||
Alternative solutions: | |||
* URL-encode the brackets: {{kbd | key=<nowiki>%5B</nowiki>}} for {{kbd | key=<nowiki>[</nowiki>}} and {{kbd | key=<nowiki>%5D</nowiki>}} for {{kbd | key=<nowiki>]</nowiki>}} | |||
=== How to resolve 400 Bad Request Errors: UTF-8 Character Encoding Issues === | === How to resolve 400 Bad Request Errors: UTF-8 Character Encoding Issues === | ||