{"id":2153,"date":"2024-08-29T14:52:27","date_gmt":"2024-08-29T21:52:27","guid":{"rendered":"https:\/\/www.angulartraining.com\/daily-newsletter\/?p=2153"},"modified":"2024-08-29T14:52:35","modified_gmt":"2024-08-29T21:52:35","slug":"how-to-use-tosignal-outside-of-an-injection-context","status":"publish","type":"post","link":"https:\/\/www.angulartraining.com\/daily-newsletter\/how-to-use-tosignal-outside-of-an-injection-context\/","title":{"rendered":"How to use toSignal() outside of an injection context?"},"content":{"rendered":"\n

If you’ve ever tried to convert an Observable into a Signal using the toSignal() function<\/a>, you might have encountered the following error NG0203: toSignal() can only be used within an injection context<\/strong>:<\/p>\n\n\n

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<\/p>\n\n\n\n

This happens when you create an Observable outside of an injection context<\/a>, which can happen if you want to download data when the user clicks on a button, for instance:<\/p>\n\n\n

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<\/p>\n\n\n\n

Can we make this work? Absolutely! The key is to access our injector and store it in a variable so we can pass it as a parameter to toSignal()<\/code>. How to do that?<\/p>\n\n\n\n

Interestingly enough, we can access our injector by… injecting it into our component:<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

Then, we pass it as an option to the toSignal()<\/code> function:<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

And that’s it, problem solved! You can see the full code example on Stackblitz<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

If you’ve ever tried to convert an Observable into a Signal using the toSignal() function, you might have encountered the following error NG0203: toSignal() can only be used within an injection context: This happens when you create an Observable outside of an injection context, which can happen if you want to download data when the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,10,29],"tags":[],"class_list":["post-2153","post","type-post","status-publish","format-standard","hentry","category-angular","category-rxjs","category-signals"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t