in Angular , what should I do with Rxjs if one request depends on the result of another?
this.getOne().then(data => {
// Promise
return this.getTwo(data);
}).then(data => {
console.log(data); // Promise
return this.getThree(data);
}).then(data => {
console.log(data); // Promise
})above is the effect achieved with Promise. How can you achieve a similar purpose with Rxjs"s pipe?
mergeMap :
from(this.getOne)
.pipe(
mergeMap(oneData => {
console.log(oneData)
return from(this.getTwo)
}),
mergeMap(twoData => {
console.log(twoData)
return from(this.getThree)
})
)
.subscribe(threeData => {
console.log(threeData)
...
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