block editor - Uncaught TypeError: wp.apiFetch is not a function

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I'm working with the latest Gutenberg and WP and until last week, the code below worked as expected.

const postSelections = [];

const allPosts = wp.apiFetch({path: "/wp/v2/featured-post"}).then(fps => {
    postSelections.push({label: "Select a Post", value: 0});
    $.each( fps, function( key, val ) {
        postSelections.push({label: val.title.rendered, value: val.id});
    });
    return postSelections;
});

All of a sudden I'm getting wp.apiFetch is not a function errors.

Anyone have any idea why??

I'm working with the latest Gutenberg and WP and until last week, the code below worked as expected.

const postSelections = [];

const allPosts = wp.apiFetch({path: "/wp/v2/featured-post"}).then(fps => {
    postSelections.push({label: "Select a Post", value: 0});
    $.each( fps, function( key, val ) {
        postSelections.push({label: val.title.rendered, value: val.id});
    });
    return postSelections;
});

All of a sudden I'm getting wp.apiFetch is not a function errors.

Anyone have any idea why??

• block-editor

Share Improve this question asked Nov 28, 2018 at 19:12 Chad HoldenChad Holden 6711 silver badge77 bronze badges 5

• It looks like you are not adding the wp-api-fetch dependency in your script. – Alvaro Commented Nov 28, 2018 at 19:37
• I'm loading that through the PHP end: wp_register_script( 'featured-post-block-block-editor', plugins_url( $index_js, FILE ), array( 'wp-blocks', 'wp-i18n', 'wp-element', 'wp-api', ), filemtime( "$dir/$index_js" ) ); – Chad Holden Commented Nov 28, 2018 at 20:18
• Add also 'wp-api-fetch' and it should not throw the error. – Alvaro Commented Nov 28, 2018 at 20:24
• Winner winner, chicken dinner! Submit it as an answer if you want credit. The change from wp-api to wp-api-fetch worked. Odd though because up until version Gutenberg 4.4 wp-api alone worked. – Chad Holden Commented Nov 28, 2018 at 20:32
• Things have been changing much last months in Gutenberg, it was a bit difficult sometimes to follow up, but it is already in RC. My suggestion is to check the code repository rather than the documentation, at least for the moment, until code is in official final stage and documentation gets fully updated. – Alvaro Commented Nov 28, 2018 at 20:43

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 3

as @Alvero pointed out in the comments, instead of just supplying wp-api in the block registration, you now need to specify wp-api-fetch.

$index_js = 'sample-post/index.js';
wp_register_script(
    'sample-post-block-block-editor',
    plugins_url( $index_js, __FILE__ ),
    array(
        'wp-blocks',
        'wp-i18n',
        'wp-element',
        'wp-api-fetch',
    ),
    filemtime( "$dir/$index_js" )
);

Then within your block, you call it using the wp.apiFetch function:

var registerBlockType = wp.blocks.registerBlockType,
    el = wp.element.createElement,
    __ = wp.i18n.__,
    apiFetch = wp.apiFetch;

const postSelections = [];

const allPosts = apiFetch({path: "/wp/v2/featured-post"}).then(fps => {
    postSelections.push({label: "Select a Post", value: 0});
    $.each( fps, function( key, val ) {
        postSelections.push({label: val.title.rendered, value: val.id});
    });
    return postSelections;
});

I'm working with the latest Gutenberg and WP and until last week, the code below worked as expected.

const postSelections = [];

const allPosts = wp.apiFetch({path: "/wp/v2/featured-post"}).then(fps => {
    postSelections.push({label: "Select a Post", value: 0});
    $.each( fps, function( key, val ) {
        postSelections.push({label: val.title.rendered, value: val.id});
    });
    return postSelections;
});

All of a sudden I'm getting wp.apiFetch is not a function errors.

Anyone have any idea why??

I'm working with the latest Gutenberg and WP and until last week, the code below worked as expected.

const postSelections = [];

const allPosts = wp.apiFetch({path: "/wp/v2/featured-post"}).then(fps => {
    postSelections.push({label: "Select a Post", value: 0});
    $.each( fps, function( key, val ) {
        postSelections.push({label: val.title.rendered, value: val.id});
    });
    return postSelections;
});

All of a sudden I'm getting wp.apiFetch is not a function errors.

Anyone have any idea why??

• block-editor

Share Improve this question asked Nov 28, 2018 at 19:12 Chad HoldenChad Holden 6711 silver badge77 bronze badges 5

• It looks like you are not adding the wp-api-fetch dependency in your script. – Alvaro Commented Nov 28, 2018 at 19:37
• I'm loading that through the PHP end: wp_register_script( 'featured-post-block-block-editor', plugins_url( $index_js, FILE ), array( 'wp-blocks', 'wp-i18n', 'wp-element', 'wp-api', ), filemtime( "$dir/$index_js" ) ); – Chad Holden Commented Nov 28, 2018 at 20:18
• Add also 'wp-api-fetch' and it should not throw the error. – Alvaro Commented Nov 28, 2018 at 20:24
• Winner winner, chicken dinner! Submit it as an answer if you want credit. The change from wp-api to wp-api-fetch worked. Odd though because up until version Gutenberg 4.4 wp-api alone worked. – Chad Holden Commented Nov 28, 2018 at 20:32
• Things have been changing much last months in Gutenberg, it was a bit difficult sometimes to follow up, but it is already in RC. My suggestion is to check the code repository rather than the documentation, at least for the moment, until code is in official final stage and documentation gets fully updated. – Alvaro Commented Nov 28, 2018 at 20:43

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 3

as @Alvero pointed out in the comments, instead of just supplying wp-api in the block registration, you now need to specify wp-api-fetch.

$index_js = 'sample-post/index.js';
wp_register_script(
    'sample-post-block-block-editor',
    plugins_url( $index_js, __FILE__ ),
    array(
        'wp-blocks',
        'wp-i18n',
        'wp-element',
        'wp-api-fetch',
    ),
    filemtime( "$dir/$index_js" )
);

Then within your block, you call it using the wp.apiFetch function:

var registerBlockType = wp.blocks.registerBlockType,
    el = wp.element.createElement,
    __ = wp.i18n.__,
    apiFetch = wp.apiFetch;

const postSelections = [];

const allPosts = apiFetch({path: "/wp/v2/featured-post"}).then(fps => {
    postSelections.push({label: "Select a Post", value: 0});
    $.each( fps, function( key, val ) {
        postSelections.push({label: val.title.rendered, value: val.id});
    });
    return postSelections;
});

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