@jahed/firebase-rules/lib/rule.js

A type-safe Firebase Real-time Database Security Rules builder.

/**
 * Creates a `.read` rule with the given `expression`.
 *
 * `read(allowAll)` is the same as `{ ".read": true }`
 *
 * https://firebase.google.com/docs/reference/security/database#read
 */
export const read = (expression) => (node = {}) => {
    if (".read" in node) {
        throw new Error(".read rule already exists on node");
    }
    return {
        ...node,
        ".read": expression(),
    };
};
/**
 * Creates a `.write` rule with the given `expression`.
 *
 * `write(allowAll)` is the same as `{ ".write": true }`
 *
 * https://firebase.google.com/docs/reference/security/database#write
 */
export const write = (expression) => (node = {}) => {
    if (".write" in node) {
        throw new Error(".write rule already exists on node");
    }
    return {
        ...node,
        ".write": expression(),
    };
};
/**
 * Creates a `.validate` rule  with the given `expression`.
 *
 * `validate(allowAll)` is the same as `{ ".validate": true }`
 *
 * https://firebase.google.com/docs/reference/security/database#validate
 */
export const validate = (expression) => (node = {}) => {
    if (".validate" in node) {
        throw new Error(".validate rule already exists on node");
    }
    return {
        ...node,
        ".validate": expression(),
    };
};
/**
 * Creates an `.indexOn` rule  with the given string `fields`.
 *
 * `indexOn(value, 'custom')` is the same as `{ ".indexOn": [".value", "custom"] }"`
 *
 * https://firebase.google.com/docs/reference/security/database#indexon
 */
export const indexOn = (...fields) => (node = {}) => {
    if (".indexOn" in node) {
        throw new Error(".indexOn rule already exists on node");
    }
    return {
        ...node,
        ".indexOn": fields,
    };
};
/**
 * Representation of `".value"` to be used in `indexOn` rules.
 */
export const value = ".value";
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