Angular component classes now use the updated RXJS 6.X syntax, rendering the previously used observable deprecated

Here is the component method I am using:

if (id !== undefined && id != null && id !== 0) {
              this.dataService.getTransactionById(id).subscribe(
                
                (tr: ITransactionResponse) => {
                if (tr != null) {
                   this.transaction = tr;
                }
                else {
                  this.router.navigate(['/']);
                }
              });

Deprecated: Unfortunately, I have noticed that this method has been marked as deprecated in my Angular project. Could you please suggest any changes to update it?

EDIT :

I have updated my method with the following code (using RXJS 6)

 this.tranService.getTransactionById(id).subscribe({
            next: (result: any)  => {            
              this.transaction = result;
            },
            error: (error:any) => {
               this.router.navigate(['/transaction/transaction-list']);
            },
            complete: () => {
              //console.log('complete');
            }
          }); 

Despite the update, the method still shows as deprecated.

https://i.sstatic.net/3QCCV.png

Answer №1

It appears that you are doing well, although one of the many overrides available has been deprecated. For further information, please refer to this discussion: Subscribe is deprecated: Use an observer instead of an error callback

Regarding your initial If-Clause, I believe you can achieve the same result by changing it to this:

if(!id) { .... }

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