<!-- mobian-agent-page publisher="dailydev" canonical="https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi" -->

---
title: Let’s learn, build and sell an API | daily.dev
description: API is an intermediary between two applications and makes it possible for those two applications to communicate with each other. For example, JokeAPi, The...
canonical: https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi
twitter:card: summary_large_image
twitter:site: @dailydotdev
og:type: website
og:site_name: daily.dev
og:title: Let’s learn, build and sell an API | daily.dev
og:description: API is an intermediary between two applications and makes it possible for those two applications to communicate with each other. For example, JokeAPi, The...
og:url: https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi
og:image: https://api.daily.dev/og/posts/vz70vYDdI.png
og:image:alt: Let’s learn, build and sell an API
og:image:width: 1200
og:image:height: 630
og:locale: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Let’s learn, build and sell an API

**[Community Picks](https://daily.dev/sources/community)** · [@itsrakesh](https://daily.dev/itsrakesh) · 8 min read · 65 upvotes · 3 comments

## Summary

API is an intermediary between two applications and makes it possible for those two applications to communicate with each other. For example, JokeAPi, The Movie Database, Open Weather API, etc. Let’s build an API service to add, delete, edit and get your daily tasks. We need a database and a server to create anAPI service. We use MongoDB as our database and NodeJs, and ExpressJs for creating a server.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://medium.com/codex/lets-learn-build-and-sell-an-api-a12b0d7b4c2>

## Community discussion

Top comments from developers on daily.dev.

**@mrtillman** · 7 upvotes

> excellent overview on APIs. now, we need better guidance on how to go about collecting the right data. as the article briefly mentioned, data is the thing that actually gets monetized, not the APIs. the API just delivers data, but data is the most valuable part.
>
> to extend the restaurant analogy that the article discussed, I'll say that visitors come to the restaurant to get food (data), they don't come to see the waiter (the API) who delivers the food, even though the waiter is an important part of the operation. the primary thing about a restaurant (business) is the food (data).

**@ahmad88** · 1 upvotes

> Thanks Bro.

**@terrotar** · 1 upvotes

> Thanks for that ! I have a couple API's developed, and wish I had some way to be able to "open" it to people use and possible charge with the usage. Thanks A LOT !

---

Tags: [#database](https://daily.dev/tags/database), [#rest-api](https://daily.dev/tags/rest-api), [#mongoose](https://daily.dev/tags/mongoose), [#postman](https://daily.dev/tags/postman)

[View this post on daily.dev](https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi)

```json
{"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]}
{"@context":"https://schema.org","@type":"TechArticle","headline":"Let’s learn, build and sell an API","url":"https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi"},"datePublished":"2022-10-01T18:05:01.826Z","dateModified":"2023-12-07T12:02:45.284Z","description":"API is an intermediary between two applications and makes it possible for those two applications to communicate with each other. For example, JokeAPi, The...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/a8583784541748a39b9b8946de61c8c0","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/a8583784541748a39b9b8946de61c8c0","isAccessibleForFree":true,"articleSection":"Community Picks","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Person","name":"Rakesh Potnuru","url":"https://daily.dev/itsrakesh","image":"https://media.daily.dev/image/upload/s--13fLMvEI--/f_auto/v1736770630/avatars/avatar_vhPIrhUBI6bwfQAgHQ7WV","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":420}},"commentCount":3,"discussionUrl":"https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":65},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":3}],"keywords":"database,rest-api,mongoose,postman","timeRequired":"PT8M"}
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Community Picks","item":"https://daily.dev/sources/community"},{"@type":"ListItem","position":3,"name":"Let’s learn, build and sell an API"}]}
{"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/let-s-learn-build-and-sell-an-api-vz70vyddi","comment":[{"@type":"Comment","text":"excellent overview on APIs. now, we need better guidance on how to go about collecting the right data. as the article briefly mentioned, data is the thing that actually gets monetized, not the APIs. the API just delivers data, but data is the most valuable part.\nto extend the restaurant analogy that the article discussed, I’ll say that visitors come to the restaurant to get food (data), they don’t come to see the waiter (the API) who delivers the food, even though the waiter is an important part of the operation. the primary thing about a restaurant (business) is the food (data).","datePublished":"2022-10-02T14:51:34.903Z","url":"https://daily.dev/posts/vz70vYDdI#c-ca3o18D9m","author":{"@type":"Person","name":"mrtillman","url":"https://daily.dev/mrtillman","image":"https://avatars.githubusercontent.com/u/46642705?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":7}},{"@type":"Comment","text":"Thanks Bro.","datePublished":"2022-10-04T07:40:07.083Z","url":"https://daily.dev/posts/vz70vYDdI#c-Uw78bsQsn","author":{"@type":"Person","name":"A D","url":"https://daily.dev/ahmad88","image":"https://lh3.googleusercontent.com/a/AATXAJx6VuUmzo0nTt2aanytiDRhciP3UnGh_hofJ0jd=s100"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}},{"@type":"Comment","text":"Thanks for that ! I have a couple API’s developed, and wish I had some way to be able to “open” it to people use and possible charge with the usage. Thanks A LOT !","datePublished":"2022-10-07T20:04:03.254Z","url":"https://daily.dev/posts/vz70vYDdI#c-mJ6JcB6o1","author":{"@type":"Person","name":"PedroGuedes","url":"https://daily.dev/terrotar","image":"https://avatars1.githubusercontent.com/u/69996220?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}}]}
```