How to create elastic search using mongodb database [closed] - node.js

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I'm trying to implement elastic search with mongodb as my database using node.js for development.Im unable to figure out what to do

There's two possible interpretations for your question and I'm not sure which one is right, so I'll address both.
You want to synchronize a MongoDB database with ElasticSearch. For this, check out river-mongodb.
You want ElasticSearch-like text searching capabilities in MongoDB. For this, MongoDB has text indexes.

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Is Node JS suitable as a serve for instant messaging? Is MongoDB suitable as a database? [closed]

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I am just about to make a small instant messaging server.
I am thinking of using MongoDB, NodeJS, and Redis. Do you think it is a good choice?
What do you think about the model schema?
It's really a good choice. If I were you, I'd use socket.io, node.js, and mongoDB.
you can also use mongoose which is a model-based and It's much better.
MongoDB(Mongoose) is a good choice, because when you do a instant messaging application, it's a good choice (you will need ) to store data as documents.

Can I get all the documents from documentdb in azure functions without specifying their id's? [closed]

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I want to get all the documents from Azure documentDB in Azure Function. Is it possible ? I am using Node.js. If it is possible then how can I do it ?
Unfortunately, our DocumentDB input binding only supports binding to a single document by ID. We have an issue tracking in our repo here to add support for allowing binding to multiple items, as well as supporting queries.
Feel free to chime in on that issue with more details on your scenarios. Thanks :) I agree with you that we should improve this ASAP.

Instagram API - Multiple hashtags [closed]

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Is is possible to search for Instagram post with multiple hashtags? I wanna fetch images based on multiple hashtags.
Using the current (version 1) of Instagram API, it is not possible to query for multiple hash tags.
There are websites offering search for two or multiple has tags but they are probably running two or more different searches and combining the results.

Mongo DB - is 1 DB per client really recommended for multi-tenant SAAS? [closed]

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this article suggests that using MongoDB for a SAAS application that you should use one DB for each client - can this be right? http://docs.mongohq.com/use-cases/marketing-platforms.html (see bottom of page)
If so are there any occasions when it would still pay to put all clients into one DB?
I asked a similar question
Is it better to use multiple databases when you are managing independent sets of things in MongoDB?
The conclusion seems to be its not really very efficient to have multiple databases. But its still a valid way of doing things.
A more important consideration is if you want to do queries across customers for whatever reason, then your job gets a lot more difficult if they are in separate databases.

Microsoft Search Server [closed]

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How do you retrieve the most popular search terms programmatically from Microsoft Search Server?
You will need to enable search usage reporting.
Extracting the popular search terms doesn't look like it's supported OOB. So you can check out this article, or this v1 code on CodePlex to let you do this.

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