rx-debugger/dist/logger/real-time-logger.js

Easily debug rxjs pipes

import { COMPLETE_OPERATOR, ERROR_OPERATOR, START_OPERATOR } from './logger';
import { tap } from 'rxjs/operators';
/**
 * Prints data after each pipe operator does its job, without waiting observable complete or error.
 * This logger is advised when debugging long observables or subjects.
 */
export class RealTimeLogger {
    constructor(serializer, channel) {
        this.serializer = serializer;
        this.channel = channel;
    }
    end() {
        return tap({
            error: () => this.print(ERROR_OPERATOR, undefined),
            complete: () => this.print(COMPLETE_OPERATOR, undefined),
        });
    }
    log(name) {
        return this.entry(name);
    }
    start() {
        return this.entry(START_OPERATOR);
    }
    entry(name) {
        return tap((value) => this.print(name, value));
    }
    print(name, value) {
        this.channel.log(new Date().toISOString(), name, this.serialization(value));
    }
    serialization(value) {
        return this.serializer.deserialize(this.serializer.serialize(value));
    }
}
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