Getting a specific array from the API with fetch in Angular: A step-by-step guide

Question

Getting a specific array from the API with fetch in Angular: A step-by-step guide

I am trying to retrieve images from an API, but I'm having trouble accessing all the arrays to get to the data. Currently, I am only able to fetch the posts arrays in a single call and not beyond that. https://i.stack.imgur.com/aFWlD.jpg

My method for fetching data looks like this:

getPostImages = () => {
  fetch (this.apiKey).
  then(response => { 
    if (response.ok) {
     return response.json(); 
  };
}).then((j: any) => 
{ console.log(j.data.post);
 });
}

Any advice on how to access all the arrays in order to retrieve the images? Thank you.

angular typescript api

Answer 1

Answer №1

It's recommended to leverage Angular HttpClient for better functionality. It pairs well with observables, offering more control over data manipulation.

Alternatively, one could utilize Array#map to extract a specific property from an array and Array#concat to merge nested arrays.

images = [];

fetchImages = () => {
  fetch(this.apiUrl)
    .then(response => {
      if (response.ok) {
        return response.json();
      };
    })
    .then((data: any) => {
      console.log(data.images);
      const images = ...data.images.map(item => item.src);
      this.images = [].concat.apply([], images);
    });
}

Answer 2

It's recommended to leverage Angular HttpClient for better functionality. It pairs well with observables, offering more control over data manipulation.

Alternatively, one could utilize Array#map to extract a specific property from an array and Array#concat to merge nested arrays.

images = [];

fetchImages = () => {
  fetch(this.apiUrl)
    .then(response => {
      if (response.ok) {
        return response.json();
      };
    })
    .then((data: any) => {
      console.log(data.images);
      const images = ...data.images.map(item => item.src);
      this.images = [].concat.apply([], images);
    });
}

Getting a specific array from the API with fetch in Angular: A step-by-step guide

Answer №1

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